Answers
Answer:
[tex] - 9 - |9 - 3 - 5 | \\ - 9 - |1| \\ - 9 - 1 \\ - 10[/tex]
Answer: The correct answer is: " - 10 ".
___________________
However, this answer, " -10 ", does not correspond to any of the answer choices given.
___________________
Step-by-step explanation:
Given: -9 −︱9 + (-3) + (-5)︱ ;
We are to simplify this expression by using the 'order of operations'—as follows:
__________________
BE MD AS ; or: PE MD AS
⇒ ⇒ ⇒ ⇒
__________________
which is a mnemonic device to remember the "order of operations":
Be Excused, My Dear Aunt Sally (Susan).
or: Please Excuse My Dear Aunt Sally (Susan).
Note: the "B" stands for "Brackets" ,
and the "P" stands for "Parentheses."
Note that "parentheses" can function as "brackets."
The "E" stands for "Exponents".
→ The "Brackets/Parentheses" —if they occur; take priority.
Then: MD for "Multiplication and Division" are the next priority;
⇒
________
→ and that neither takes priority over the other. Take note of the " ⇒ " symbol" below the "MD". This means that we perform "multiplication and division"—as they occur, from the far left of ["beginning of"] the expression to the end of the expression.
Then: We do the same with "Addition and Subtraction"—from the beginning to the end of the expression, in that order [that is, from "left to right"—as/if they occur]—hence the "⇒" notation.
_____________________
So again, our given expression is:
" -9 −︱9 + (-3) + (-5)︱ " ;
So; we have an "absolute value" (the positive integer of what is enclosed within the "vertical lines" that indicate "absolute value"—or, if the value of what is enclosed within the "vertical lines" is "0" [zero], then the absolute value would be "0" [zero]; since the absolute value of 0 is 0.
____________
So, let's start simplifying by using the 'order of operations.'
Do we have brackets or parentheses? No; except for the absolute value lines — which do take priority. The parentheses within those lines do not count for our purposes—but if they did, then we would use the order of operations within the "absolute value" bars!
So as a matter of 'semantics', we could say: 'Yes"; that the absolute value bars function as "brackets."
Do we have any "exponent(s)"? No.
Is there any multiplication/division? No.
Do we have any addition or subtraction? Yes; only one:
→ " - 9 −︱9 + (-3) + (-5)︱.
→ {not including the addition and subtraction within the absolute value bars.}.
____________
Let's start by simplifying the expression within the absolute value bars:
︱9 + (-3) + (-5)︱;
Note: The only operations are additional and subtraction; so we just calculate from left to right; as these operations occur:
" 9 + (-3) " = 9 − 3 " ; Note: Adding a "negative value" is the same as subtracting a "possible value" ;
to get: " 6 " ;
Then: the next step is:
" 6 + (-5) " = 6 − 5 " ; Note:
Adding a "negative value" is the same as subtracting a "positive value" ;
to get: " 1 ".
Now, the absolute of " 1" is " 1".
→ or; write as: ︱1︱= 1 .
Now, we can rewrite the entire expression:
" - 9 − 1 " ; to calculate and simplify:
to get: " - 10 " .
__________________
Hope this answer is correct and helpful!
__________________
However, this answer, "-10", does not correspond to any of the given answer choices.
__________________
Best wishes!
__________________
Related Questions
|6n|≤18 what is the answer and how do you graph it
Answers
a grain of salt has an approximate length of 9.8x10 to the -4 feet. The approximate height of Mt. Everest is 2.9035x10 to the power of 4 feet. Calculate the approximate number of grains of salt it would take to reach the height of Mt. Everest..
Answers
The approximate number of grains of salt it would take to reach the height of Mt. Everest is; 0.2963 * 10⁸
How to divide exponents?We are given;
Approximate length of a grain of salt = 9.8 * 10⁻⁴ ft
Approximate height of Mt. Everest = 2.9035 * 10⁴ ft
Now, we want to know the approximate number of grains of salt it would take to reach the height of Mt. Everest. To get this it means we have to divide the Approximate height of Mt. Everest by the Approximate length of a grain of salt.
According to Laws of exponents, we know that;
x³/x² = x^(3 - 2) = x¹
Thus;
Approximate number of grains of salt it would take to reach the height of Mt. Everest = (2.9035 * 10⁴)/(9.8 * 10⁻⁴) = (2.9035/9.8) * (10⁴⁻⁽⁻⁴⁾) = 0.2963 * 10⁸
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log6 8+ 2log6 3+log6 12-log6 24
Answers
after simplifying the logarithm expression log₆ 8 + 2log₆ 3 + log₆ 12 - log₆ 24, we get the result as log₆ 36.
We are given the logarithm expression as:
log₆ 8 + 2log₆ 3 + log₆ 12 - log₆ 24
Now, we can also write 2log₆ 3 as:
2log₆ 3 = log₆ 3²
So, the logarithm expression will become:
log₆ 8 + log₆ 3² + log₆ 12 - log₆ 24
Now, we will use the property that is:
logₐ x + logₐ y = logₐ (x × y)
So, we get the logarithm expression as:
log₆ ( 8 × 3² × 12 / 24)
=log₆ (8 × 9 × 12 / 24)
= log₆ (36)
= log₆ 36
Therefore, after simplifying the logarithm expression log₆ 8 + 2log₆ 3 + log₆ 12 - log₆ 24, we get the result as log₆ 36.
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write the number positioned at point A
Answers
The number positioned at point A is -4.25.
What is a number line?A number line can be defined as a type of graph with a graduated straight line which contains both positive and negative numbers (numerical values) that are placed at equal intervals along its length.
This ultimately implies that, a number line can be used to compare two numbers such as 4 and 1. Also, a number line typically increases in numerical value towards the right and decreases in numerical value towards the left.
In this scenario, the given number line uses a scale of 1:0.25. Therefore, the number (numerical value) that is placed at point A is given by:
Point A = -4.5 - 0.25
Point A = -4.25.
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WILL MARK BRAINLEIST!
(02.02 MC)
Use the graph to fill in the blank with the correct number.
f(0)=______
1
0
-2
-3
Answers
Answer:
The answer is 1
A line with a slope of – 1/6 passes through the points (1,3) and (7,f). What is the value of f?
Answers
[tex]\quad \huge \quad \quad \boxed{ \tt \:Answer }[/tex]
[tex]\qquad \tt \rightarrow \: f = 2[/tex]
____________________________________
[tex] \large \tt Solution \: : [/tex]
Let's consider two points (1 , 3) and (7 , f), now we can write the slope (m) of line in form of these points as :
[tex] \qquad \tt \rightarrow \: m = \cfrac{y2 - y1}{x2 - x1} [/tex]
[tex]\qquad \tt \rightarrow \: - \dfrac{1}{6} = \dfrac{f - 3}{7 - 1} [/tex]
[tex]\qquad \tt \rightarrow \: - (7 - 1) = 6(f - 3)[/tex]
[tex]\qquad \tt \rightarrow \: - 6 = 6(f - 3)[/tex]
[tex]\qquad \tt \rightarrow \: f - 3 = - \dfrac{6}{6} [/tex]
[tex]\qquad \tt \rightarrow \: f - 3 = - 1[/tex]
[tex]\qquad \tt \rightarrow \: f = - 1 + 3[/tex]
[tex]\qquad \tt \rightarrow \: f = 2[/tex]
Value of f is 2, so the point is : (7 , 2)
Answered by : ❝ AǫᴜᴀWɪᴢ ❞
given=1/5x-5=5 prove x=50
Answers
Prove that x = 50 in the following equation: 1/5x – 5 = 5
Write the equation:
1/5x – 5 = 5
Add 5 to both sides:
1/5x – 5 + 5 = 5 + 5
1/5x = 10
Multiply each side by 5:
5 × 1/5x = 10 × 5
–5 + 5 cancels out, leaving you with:
1x = 10 × 5
1x = 50
Divide both sides by 1 to get x:
1x/1 = 50/1
The 1 cancels out:
x = 50/1
Answer:
x = 50 ✔
Check your work by plugging in 50 as x:
1/5x – 5 = 5
1/5 × 50 – 5 = 5
Multiply:
1/5 × 50/1 – 5 = 5
50/5 – 5 = 5
Get rid of the fraction by dividing:
50 ÷ 5 = 10
10 – 5 = 5
Subtract:
10 – 5 = 5
5 = 5 ✔
I have just proven that x = 50 because the answer I got when I checked my work was balanced. Hope that helps! Have an amazing rest of your day! :)
Jason drops a ball from a balcony. The height of the ball is represented by the equation
y = -4.9x² +9.8, where y represents the height in meters and x represents the number
of seconds that pass. After approximately how many seconds will the ball reach the
ground?
A 0.7
B 1.4
C1.9
D 2.6
Answers
After approximately 1.4 seconds will the ball reach the ground.
The relation between height and the time in seconds is,
y = -4.9x² + 9.8
Here y represent height in meters and x is time in seconds.
Let us assume that the origin is on the ground,
Now we know,
If the ball is dropped from the top at t = 0.
It will reach down to the ground after x seconds.
When it will down to the ground, and the value of y will become zero,
We can write,
y = -4.9x² + 9.8
0 = -4.9x² + 9.8
4.9x² = 9.8
x² = 2
x = √2
x = 1.41 seconds.
The time taken by ball to reach down to the ground is 1.41 seconds.
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Since three bits can be used to represent numbers between 0 and 7, we could use three bits to store the size of most families. Three bits wouldn’t be sufficient to store the number of students in a typical discussion section as they run anywhere from 15 to 25 students and three bits can only store numbers from 0 to 7.
How many binary digits would we need to set aside in order to store the number of high school students taking CS105 across the nation (we have 220 high school students in total)?
Answers
Considering the numerical representation of integers with n bits, it is found that 8 bits would have to be set aside in order to store the number of high school students taking CS105 across the nation.
What is the range of the binary representation of unsigned numbers with n bits?For this problem, we work with unsigned numbers, excluding negatives, as the number of students is a discrete amount that starts with 0 and increases by 1 for each new student.
For unsigned integers with n bits, we have that:
The minimum value that can be represented is: 0.The maximum value that can be represented is: 2^n - 1.For this problem, we want to represent an amount of 220, hence the number of bits needed is found as follows:
2^n - 1 ≥ 220
2^n ≥ 221
log2(2^n) ≥ log(2)(221)
n ≥ 7.8.
The number of bits cannot be a decimal amount, hence n is rounded up, and thus, 8 bits are needed to represent the amount.
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R is inversely proportional to A.
R = 12 when A = 1.5
a) Work out the value of R when A = 5.
b) Work out the value of A when R = 9
Answers
Inversely proportion - The work out value of R and A is 3.6 and 2 respectively.
What is inversely proportion?
They are said to be inversely proportional when one quantity's value rises relative to another's decline or vice versa. It implies that the two quantities behave inherently differently. For instance, time and speed have an inverse relationship. The time decreases as you increase the speed. Inverse proportion, varying inversely, inverse variation, and reciprocal proportion are additional terms used here to describe this kind of proportion.
Given, R [tex]\alpha[/tex] 1/A
R = k/A
When R = 12 and A = 1.5
12= k× 1.5
k= 18
Now, when A=5, R= 18/5 = 3.6
And when R= 9, A = 18/9=2
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Use the graph to find the values below.
Answers
From the given graph, the numeric values of the expressions are given as follows:
f(-1) = 12.f(1) - g(1) = 8.g(x) = 4 when x = 2.f(x) = g(x) when x = 3.How to find the numeric value of a function or of an expression?To find the numeric value of a function, we replace each instance of the variable in the function by the desired value.
On the graph of the function, the equivalent to this is that we have to find where the x-axis has the value, and find the value of y for which the function passes through the y-axis.
From the graph, when x = -1, f(x) passes the point at y = 12, hence f(-1) = 12.
For the second item, applying the same logic, we have that:
f(1) = 10.g(1) = 2.Hence:
f(1) - g(1) = 10 - 2 = 8.
For the third item, we have to look at the graph of g(x), and find the value of x when y = 4, hence g(x) = 4 when x = 2.
For the fourth item, the functions intersect at point (3,8), hence f(x) = g(x) when x = 3.
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Ava's bedroom has an area of 36 square feet. The bedroom is 6 times as many square feet as Ava's closet. If the closet is 3 feet wide, what is the length of the closet?
First find the area of the closet.
Answers
Answer:
The area of Ava's closet is 2 square feet.
Step-by-step explanation:
The area of the bedroom is 36 and it is 6 times as many square feet as her closet. They are basically saying that the closet has 1/6th the area of the bedroom.
Now we can form an equation to find the area of her closet.
36 ÷ 6 = 6
So, therefore, the area of the closet is 6 square feet.
We know the width of the closet, which is 3 feet. Since the formula of area for her closet is Length × Width, we can form an equation for this.
X in this equation is what we are trying to solve for, which is the length of the closet.
X = 6 ÷ 3
X = 2
So, therefore, the area of Ava's closet would in the end be 2 square feet.
Let me know if you have any questions! :)
Which ordered pairs in the form (x, y) are solutions to the equation 4x - 5y = 24 Select each correct answer.
(6,0)
(4,8)
(1,-4)
(-9, -12)
Answers
The ordered pairs (x, y) which are the solutions to the equation 4x - 5y = 24 are option A (6, 0), option C (1, -4) and option D (-9, -12)
Given,
The equation: 4x - 5y = 24
We have to find the ordered pairs in the form (x, y) which are the solutions to the equation:
Lets check:
Option A: (6, 0)
Substitute this in the equation:
We get
4 × 6 - 5 × 0 = 24
24 - 0 = 24
24 = 24
(6, 0) satisfies the equation.
Option B: (4, 8)
Substitute this in the equation:
We get
4 × 4 - 5 × 8 = 24
16 - 40 = 24
-24 ≠ 24
(4, 8) does not satisfies the equation.
Option C: (1, -4)
Substitute this in the equation:
We get
4 × 1 - 5 × -4 = 24
4 - (-20) = 24
4 + 20 = 24
24 = 24
(1, -4) satisfies the equation
Option D: (-9, -12)
Substitute this in the equation:
We get
4 × -9 - 5 × -12 = 24
-36 + 60 = 24
24 = 24
(-9, -12) satisfies the equation
Therefore, the solutions for the equation 4x - 5y = 24 are option A (6, 0), option C (1, -4) and option D (-9, -12)
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question in screenshot
Answers
Cosine is a trigonometric ratio that means
[tex] = \frac{adjacent}{hypotenuse} [/tex]
THE ADJACENT SIDE IS THE ONE WITH MAGNITUDE 17CM AND THE HYPOTENUSE IS THE LONGEST SIDE WITH 37CM
COS(63°) AS A FRACTION IS
[tex] \frac{17}{37} [/tex]
The growth rate of the virus that causes covid-19 is 24% compounded continuously. If
a sample of the virus has 125 cells, how many cells will be present in the sample after
5 days? Round your answer to the nearest cell.
Answers
166.25E + 4500 cells will be present in the sample after 5 days.
How to find the number of cells present?Given,
Cells 24% compounded continuously,
A sample of the virus has 125 cells.
To find:
No cells will be present in the sample after 5 days
Solution:
a = p ( 1 + r/n)nt
a = 125 ( 1 + 24/24)^24*5
a = 125(2)^120
a = 125 * 1.3292279957849E+36
a = 166.25E + 4500
166.25E + 4500 cells will be present in the sample after 5 days.
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find the value of x and the measure of each angle
Answers
Answer:
see explanation
Step-by-step explanation:
since QR ≅ RS , the triangle is isosceles with base angles congruent, so
∠ Q = ∠ S , that is
8x - 17 = 5x + 1 ( subtract 5x from both sides )
3x - 17 = 1 ( add 17 to both sides )
3x = 18 ( divide both sides by 3 )
x = 6
Then
∠ Q = 8x - 17 = 8(6) - 17 = 48 - 17 = 31°
∠ R = 19x + 4 = 19(6) + 4 = 114 + 4 = 118°
∠ S = 5x + 1 = 5(6) + 1 = 30 + 1 = 31°
Find the equation of the linear function.
Answers
The equation of the linear function represented by the given table in slope intercept form is y = 2x - 2.
How to find equation of a linear function from points?The equation of line can be determine using the slope-intercept formula;
y = mx + b
Where m is slope and b is the y-intercept.
From the given table, we use to points;
Point 1( -1, -4 )
x₁ = -1y₁ = -4Point 2( 1, 0 )
x₂ = 1y₂ = 0First, we find the slope of the line.
Slope m = (y₂ - y₁) / (x₂ - x₁ )
Slope m = ( 0 - (-4) ) / (1 - (-1) )
Slope m = ( 0 + 4) ) / (1 + 1) )
Slope m = 4 / 2
Slope m = 2
Next, we find the y-intercept b, using a slope m = 2 and a point ( -1, -4 ).
y = mx + b
-4 = 2(-1) + b
-4 = -2 + b
b = -4 + 2
y-intercept b = -2
Now that we have the slope m and y-intercept b, plug the values into to y = mx + b to determine the equation of line.
y = mx + b
y = 2x + (-2)
y = 2x - 2
Therefore, the equation of the linear function is y = 2x - 2.
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What is the image point of (-8, 1) after the transformation D20 R1800 ?
Answers
I hope this helps
The image is (−8,−1). See explanation.
Explanation:
To find an image of P(x,y) in translation Ta,b you add a and b to x and ycoordinates respectively, so the image is:
Ta,b(x,y)=(x+a,y+b)
Here we can write that:
T−3,−2(−5,1)=(−5−3,1−2)=(−8,−1)
pls pls help whoever gets it right gets marked brainliest
Answers
The distance between the starting point and the second obstacle is 13 meters.
And the total length of one lap is equal to the perimeter of the triangle, which measures 30 meters.
How to get the distance between the starting point and the second obstacle?
We can see that this distance is equal to the hypotenuse of the triangle on the image.
The two legs measure:
5 meters and 12 meters.
Then using the Pythagorean theorem we can write:
d^2 = 5^2 + 12^2
d = √(5^2 + 12^2) = 13
So the distance between the starting point and obstacle 2 is 13 meters.
b) This will be the perimeter of the triangle, it is:
P = 13 m + 12m + 5m = 30m
One full lap has a length of 30 meters.
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Are the ratios 2:3 and 4:5 equivalent?
Answers
Answer:
No
Step-by-step explanation:
In order to have the same ratio, it would have to be 2:3 and 4:6 because you divide it by 2
I NEED HELPPPPPPPPPPPPPPPPPPPPP
Answers
Answer:
Step-by-step explanation:
huh???????????????
One number is one more than a second number. Five times the first is 3 less than 6 times the second. Find the numbers.
The value of the first number is
The value of the second number is
$
Answers
The value of the first number is 9 , and
the value of the second number is 8 .
In the question ,
statements about two numbers is given ,
let the first number be x ,
let the second number be y .
According to the first statement " One number is one more than a second number "
translating it into the equation form , we get
x=y+1 ...(i)
According to the second statement which states " Five times the first is 3 less than 6 times the second "
translating it into the equation form , we get
5*x = 6*y - 3
5x = 6y - 3
Substituting the value of x from equation (i) , we get
5(y+1) = 6y - 3
5y + 5 = 6y - 3
6y-5y = 5+3
y = 8 ,
substituting y=8 in the the equation (i) ,
x = 8 + 1
x = 9
hence the first number = 9 and the second number = 8 .
Therefore , the value of the first number is 9, and
the value of the second number is 8 .
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Question 4: The Wilson family is a family of 7 people. They have used 5,785.23 gallons of water so far this month. They cannot exceed 11,375.50 gallons per month during drought season. Write an inequality to show how much water just one member of the family can use for the remainder of the month, assuming each family member uses the same amount of water every month.
7x + 5,785.23 ≥ 11,375.50
7x + 5,785.23 ≤ 11,375.50
7x - 5,785.23 ≥ 11,375.50
7x - 5,785.23 ≤ 11,375.50
Answers
The inequality that show the amount of water that each member uses is 7x + 5785.23 ≤ 11375.50.
How to solve the inequality?1) Place all terms of the inequality on the same side.
2) Replace the sign of inequality with the sign of equality.
3) Solve the equation, that is, find its root.
4) Study the sign of the equation, identifying the values of x that represent the solution of the inequality.
Let x represent the amount of water each member uses monthly. The Wilson family is a family of 7 people. They have used 5,785.23 gallons of water and cannot exceed 11,375.50 gallons per month. Hence:
7x + 5785.23 ≤ 11375.50
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How
many solutions does this nonlinear system of equations have?
Answers
The nonlinear system of the equation has two solutions as it intersects at two points.
What is the graphical solution of a system of equations?Graphical solutions of a system of equations are a way of finding the intersection points of all the equations given.
A system with two or more than two equations has a solution only when they have a common intersection point.
From the given figure we observe that the straight line intersects the parabolic curve at two distinct points, Therefore this nonlinear system of equation has two solutions.
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If 3 pounds of jelly beans cost $6.30,
how much would 2 pounds of jelly beans cost?
Answers
Answer: 4.20
Step-by-step explanation:
6.30 / 3 = 2.10
2.10 x 2 = 4.20
What value of x makes this equation true?
X/2-2= X/4+4
A. 4
B. 8
C. 16
D. 24
Please help me :'(
Answers
The value of x that makes this equation (X-2)/2= (X+4)/4 to be true is 8.
What is an equation?An equation ca be described as the mathematical terms which can contains different digits as well we a as alphabet and it can simplified so that a particular expression or term can be found, in the given equation we were told to find the value of x by simplify the equation which is done below.
(X-2)/2= (X+4)/4
Then if we cross multiply we will have
(4x - 8) =(2x+8)
then we can simplify further and collect the like terms which is
2x=16
x=8
There, the correct option is B
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Saif estimates that 12 batteries will be defective for a certain month. However, 10 were actually defective. What is the percent error?
Answers
The percent error for the batteries is 20%
Estimated defective batteries as per Saif = 12 batteries
Actual defective batteries = 10
Percent error is given by the formula:
Percent error = (E-T/E)*100
where E is the experimental value and T is the theoretical value
Substituting the values in the formula we get:
= (12-10/12)*100
= 20%
The difference between an approximate or measured value and an exact or known value is expressed as a percentage error, also known as a % error. In science, it is used to document the discrepancy between a real or accurate value and a measured or experimental value.
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start fraction, 3, divided by, 5, end fraction of an hour. Jessica waxes the floor at a constant rate.
At this rate, how many square meters can she wax per hour?
Answers
Answer:
33 square meters per hour
Step-by-step explanation:
The weight of a horse is 350kg to the nearest 10kg. Complete the error interval for the mass of the
horse.
Answers
The accuracy thresholds that apply when a number has been rounded or shortened are known as error intervals. In other words, they represent the range of values that a number may have taken had it not been rounded off or truncated.
What is error interval?The place value of the degree of accuracy is 0.1. If rounded: Divide this place value by 2, and then add and subtract this amount to the given value to give the maximum and minimum values for your error interval. Minimum 22.7 – 0.05 = 22.65 cm.An error interval tells us the range of numbers that we could have had before the number was rounded. The number has been rounded to 4.8 to one decimal place. We need to look half way between 4.7 and 4.8 for the lower bound and half way between 4.8 and 4.9 for the upper bound.To learn more about Error interval refer to:
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if you have 120 calories in 3/4 cups of cereal. How many calories do you have in 6 cups of cereal. PLease help me.
Answers
The number of calories in 6 cups of cereal are 960 calories.
Given that:-
Number of calories in 3/4 cups of cereal = 120 calories
We have to find the number of calories in 6 cups of cereal.
We will use the unitary method in this question.
Number of calories in 1 cup of cereal = 120*(4/3) = 160 calories
Hence,
Number of calories in 6 cups of cereal = 160*6 = 960 calories
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