To rotate the figure 90 degrees clockwise about a point, every point(x,y) will rotate to (y, -x)
Step 1
[tex]\begin{gathered} Preimage\text{ of }triangle\text{ ABC} \\ A(1,3) \\ B(2,1) \\ C(1,1) \end{gathered}[/tex]Step 2
The new ordered pair of the image after rotation
[tex]\begin{gathered} \Delta A^{\prime}B^{\prime}C \\ A^{\prime}(3,-1) \\ B^{\prime}(1,-2) \\ C(1,-1) \end{gathered}[/tex]Step 3
Image of the coordinateStep
Step 4
Label of the points
Exploring Sample Space
In the given sample spaces, which has the largest sample space?
M-{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
A {10, 20, 30, 40, 50, 60, 70, 80, 90}
T{20, 25, 30, 35, 40, 45, 50, 55, 60}
H-{2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22}
????
In August, a giant panda named Max was born at the Silver City Zoo. In September, Max weighed 3.04 pounds. Today, Max is weighed again and he is heavier than before. Now Max weighs 10.73 pounds.
The most appropriate choice for for linear equation will be given by -
Gain in weight of Max = 7.69 pounds
What is linear equation?
At first it is important to know about equation
Equation shows the equality between two algebraic expressions by connecting the two algerbraic expressions by an equal to sign.
A one degree equation is known as linear equation.
Let the gain in weight be x pounds
Weight of Max in the month of September = 3.04 pounds
Weight of Max today = 10.73 pounds
By the problem,
3.04 + x = 10.73
x = 10.73 - 3.04
x = 7.69
Gain in weight of Max = 7.69 pounds
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The U.S. Energy Information Administration (US EIA) reported that the average price for a gallon of regular gasoline is 3.91. The US EIA updates its estimates of average gas prices on a weekly basis. Assume the standard deviation is .24 for the price of a gallon of regular gasoline and recommend the appropriate sample size for the US EIA to use if they wish to report each of the following margins of error at confidence. Round up to the next whole number.
a. The desired margin of error is .11 The appropriate sample size is
.
b. The desired margin of error is .07 . The appropriate sample size is
.
c. The desired margin of error is .04. The appropriate sample size is
Answer:
3
Step-by-step explanation:
1 = 1
A model of a rectangular stove top with four circular burners is shown. The side lengths of the stove top and the diameters of the burners are labeled.Which measurement is the best estimate of the area in square inches of the stove top that does not include the area of the burners?A)108 in.2B)492 in.2C)420 in.2D)528 in.2
Explanation
to find the area of the stove that does not include the area of the burnes ( yellow area), we can subtract the area of the 4 circles from the area of the full rectangle
so
Step 1
[tex]\begin{gathered} \text{Area}=\text{rectangle-}4\text{ circles} \\ Area=(length\cdot width)-4(\pi\text{ }\frac{diameter^2}{4}) \\ A\text{rea}=(length\cdot width)-(\pi\text{ }\cdot diameter^2) \end{gathered}[/tex]
then, Let
for circle:
diameter= 6 in
for rectangle
length= 24 in
width= 22 in
Step 2
replace,
[tex]undefined[/tex]A rectangular dog pen is constructed using a barn wall as one side and 120m of fencing for the other three sides. a) give a sketch of the situation. b) express the area in terms of x. c) sketch the graph. d) find the value of x that gives the greatest area. e) find the dimensions of the pen. f) state the domain.
The solutions to the question are
The area of the pen in terms of x is A = x(120 - 2x)The x value that gives the highest area is 30The dimensions is 30 by 60The domain is 0 <= x <= 60a) How to determine the sketchThe given parameters are:
Sides = 3
Fourth side = barn wall
Perimeter = 120 m
Next, we sketch the dog pen using the above parameters (see attachment)
b) The area of the penHere, we have
P = 120m
Also, we have
P = 2x + y
This gives
2x + y = 120
Make y the subject
y = 120 - 2x
The area is calculated as
A = xy
So, we have
A = x(120 - 2x)
Hence, the area is A = x(120 - 2x)
The sketch of the graphSee attachment for the graph of A = x(120 - 2x)
The value of x that gives the greatest areaWe have
A = x(120 - 2x)
Expand
A = 120x - 2x^2
Differentiate
120 - 4x= 0
So, we have
4x = 120
This gives
x = 30
Hence, the value of x that gives maximum area is 30
The dimensions of the penRecall that
y = 120 - 2x
So, we have
y = 120 - 2 * 30
Evaluate
y = 60
Hence, the dimensions is 30 by 60
The domain of the functionFrom the graph, we have
x = 0 to 60
Hence, the domain of the function is 0 <= x <= 60
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Find 3/4 divided by 2/3 then draw a picture and write an explanation describing how to get the answer.
The outcome of the quotient between the two fractions 3/4 and 2/3 is 9/8
How to find the quotient between the two fractions?So let's define two fractions as:
a/b and c/d.
The quotient between the fractions a/b and c/d can be written as:
(a/b)÷(c/d).
Now, the quotient is equal to the product with the inverse, so we can rewrite this as:
(a/b)÷(c/d) = (a/b)*(d/c)
Now, in this case, we want to find 3/4 divided by 2/3, this will be:
(3/4)÷(2/3) = (3/4)*(3/2) = 9/8
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How can you use the Power of a Quotient, Quotient of Powers, Zero Exponent Laws Identity Exponent and to evaluate numerical expressions with whole-number exponents?
Calculate identity exponents using the exponent of the quotient, degree of exponent, and the law of zero exponent equations and evaluate numerical equations with integer exponents.
The following is an equivalent numeric expression with an integer exponent that uses the quotient, the quotient, zero-degree rule, and the identity exponent, and evaluates the numeric expression.
[tex]2^{5} \\[/tex] × [tex]2^{6}[/tex] = [tex]2^{11}[/tex], using the product of powers.
2² × 2³ = (2×3)² = 6², using the power of a product.
[tex](2^{2})^{6}[/tex] = [tex]2^{12}[/tex], using the power of a power.
The seven laws of exponents are the power rule, the power ratio rule, the power rule, the power rule, the power quotient rule, the power zero rule, and the negative exponent rule. Arithmetic questions, as well as how to multiply, divide and add powers.
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Toby picks a 5-digit number. It is larger than 49,999 and it is a multiple of 5. How many different numbers could he have picked?
The total number of different numbers which Toby could have picked according to the task content as given is; 1,000.
How many different numbers could Toby have picked?It follows from the task content that the number of different numbers which Toby could have picked given the conditions is to be determined.
On this note, since the required number is to be greater than 49,999 and must be a 5-digit number, the numbers which he could pick would range from;
49,999 - 99,999.
Hence, there are 5000 numbers in between.
Additionally, since the number must be a multiple of 5, the total number of multiples of 5 from 5,000 consecutive numbers is;
= 5,000/5
= 1000 different numbers.
Therefore, Toby could pick any of 1000 different numbers.
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Find the value of x so that f(x) =7
HELP ASAP
The value of x, so f(x)=7 is 5.
According to the graph, we have a linear function and linear functions have the same slope for all value of x, we can determine the value of f(x) for x=7 by the means of the equation for the line:
[tex]\frac{y_{b}-y_{a} }{x_{b}-x_{a} }[/tex] = [tex]\frac{y_{c}-y_{a} }{x_{c}-x_{a} }[/tex] ....................(1)
Where:
[tex](x_{a},y_{a} )[/tex] = (2,0) and [tex](x_{b},y_{b} )[/tex] = (5,7) are the Known points.
[tex](x_{c},y_{c} )[/tex] is the Expected point.
The value of [tex]y_{c}[/tex] = 7
Then the value of [tex]x_{c}[/tex] is,
[tex]x_{c}=x_{a} +\frac{ y_{c}-y_{a} }{y_{b}-y_{a} } *(x_{b} - x_{a} )[/tex]
= 2+ [(7-0) / (7-0)] * (5-2)
= 2 + (5-2)
= 2+3
= 5
Therefore, the value of x, so f(x)=7 is 5.
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PLEASE HELP ME I NEED 4 ANSWERS !!!!!!!!!! a) Fill in the gaps to factorise the expression below.
3x² + 16x + 5 = (3x + −)(x + −)
b) Use your answer to part a) to solve 3x² + 16x + 5 = 0
The roots the the given quadratic equation, will be -1/3 and -5 so the factors will be (3x+1)(x+5). As the value of roots is known, so the value of quadratic equation will be zero (0) for both the roots.
As per the question statement, we are supposed to fill the gaps to factorize the quadratic equation given :
3x² + 16x + 5 = (3x + _)(x + _)
We need to solve the expression for finding out its factors.
y = 3x² + 16x + 5
y = 3x² + 15x + x + 5
y = 3x(x + 5) + 1(x + 5)
y = (3x + 1)(x + 5)
Therefore, the roots the the given quadratic equation, will be -1/3 and -5 so the factors will be (3x+1)(x+5). As the value of roots is known, so the value of quadratic equation will be zero (0) for both the roots.
Quadratic equation: Any equation where there is just one term that squares the unknown and none that raises it to a higher power.Roots: Roots of any quadratic equation / expression is the value of the variable at which the complete value of the expression becomes zero (0). Number of roots = highest degree.To learn more about Quadratic equation, click on the link given below:
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Given m/5 = 91° and m/2 = (8x + 1)°, what is the value of x ?
X =
Helpppp
In the picture there is a parallel line with the intersection line. ∠5=91° and ∠2=(8x+1)°and x value is 11.
Given that,
In the picture there is a parallel line with the intersection line.
We have to find the x value.
Given ∠5=91° and ∠2=(8x+1)°
We know that if there are 2 parallel line and 1 line is intersecting to the parallel line then the corresponding angles are equal.
∠1=∠5
So, ∠1=91°
Now,
We can write as ∠1+∠2=180° because the ∠1 and ∠2 are on 1 line.
91+8x+1=180
8x+92=180
8x=180-92
8x=88
x=88/8
x=11
Therefore, x value is 11.
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Find the slope between the following points (8,-4) and (2, -4)
Let:
[tex]\begin{gathered} (x1,y1)=(8,-4) \\ (x2,y2)=(2,-4) \end{gathered}[/tex]We can find the slope m, using the following formula:
[tex]m=\frac{y2-y1}{x2-x1}=\frac{-4-(-4)}{2-8}=\frac{0}{-6}=0[/tex]Answer:
0
A bag of flour has a mass of 4.5 kilograms. How many grams are in 4.5 kilograms?
The first thing we have to know is that 1 kilogram is equal to 1000 grams
[tex]\begin{gathered} 1\operatorname{kg}\to1000gr \\ \frac{1000gr}{1\operatorname{kg}} \end{gathered}[/tex]if we have 5.4 kilograms
[tex]\begin{gathered} 4.5\operatorname{kg}\cdot\frac{1000gr}{1\operatorname{kg}}=(4.5)(1000gr) \\ \end{gathered}[/tex][tex]4.5kg=4500gr[/tex]Question
Solve the formula C = πd for л.
Two or more expressions with an Equal sign is called as Equation.π= C/d for equation C = πd
What is Equation?Two or more expressions with an Equal sign is called as Equation.
The given equation is C = πd
c equal to pi times of d
We need to solve it for π
To solve for π we have to separate π from d. To make this We have to divide both sides by d.
So C/d= π
Hence π= C/d for equation C = πd
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Florence wants to invest money abroad. Florence is aware that France generally has a recession every 6 years and America generally has a recession every 8. in the year 2005, both France and America were in recession. Florence needs to work out the next time they will both be in recession. When will this be?
The most appropriate choice for LCM will be given by
After the year 2005, France and America will be in recession in the year 2029
What is LCM?
Suppose a and b are two numbers. LCM of a and b is the lowest common multiple of a and b. LCM of a and b is the lowest number that is divisible by both a and b.
Here,
France has a recession every 6 years.
America has a recession every 8 years.
Florence works out when France and America will both be in recession.
It will be possible in the year which is a common multiple of 6 and 8
In the year 2005, both France and America were in recession
France and America will both be in recession again after (LCM of 6 and 8) years
Now,
6 = 2 x 3
8 = 2 x 2 x 2
LCM of 6 and 8 = 2 x 2 x 2 x3
= 24
France and America will both be in recession again after 24 years
After the year 2005, France and America will be in recession in the year (2005 + 24) = 2029
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Find the absolute change and the relative change in the following case.
The number of daily newspapers in a country decreased from 2271 in 1900 to 1218 in 2010.
The absolute change is _____
(Simplify your answer. Type an integer or a decimal.)
Answer:
-868
Step-by-step explanation:
-Absolute change is simply defined as the number by which a change has occurred.
-We therefore determine the difference between the two years by subtracting the new value from the old or reference value
What is f^-1(-7) plus f(-7)? I need help answering this question
Answer:
13
Step-by-step explanation:
You want the sum of f^-1(-7) and f(-7) given the function definition in the table.
Inverse functionThe inverse function f^-1(x) consists of ordered pairs that are the reverse of the ordered pairs (x, f(x)). That is ...
(x, f^-1(x)) ≡ (f(x), x)
Another way to describe f^-1(x) is "the value of z that gives f(z) = x". This means f^-1(-7) is the value of x that gives f(x) = -7. That x-value is 6:
f^-1(-7) = 6 . . . . . from the 4th column of the table
Function valueWe can read the function value directly from the table:
f(-7) = 7 . . . . . . the first column of the table
SumThen the sum of interest is ...
f^(-1)(-7) +f(-7) = (6) +(7)
f^(-1)(-7) +f(-7) = 13
__
Additional comment
The inverse function ordered pairs are ...
(x, f^-1(x)) = {(7, -7), (12, 11), (8, -13), (-7, 6), (13, 5)}
The area of the parallelogram is 24 square miles.find base and height
The base of the parallelogram is 3
The height of the parallelogram is 8
How to calculate the base and height of the parallelogram ?Let the base be represented as (x+2)
Let the height be represented as (x-2)
The area of the parallelogram is 24
The first step is to get two numbers that can be multiplied together to get 24
= 3 × 8
The two numbers are 3 and 8
Hence the base is 3 and the height is 8
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which expression would be easier to simplify if you use the associative property to change the grouping A: [-14+(-26)]+67B: (2/5+3/5) +7/3C: (43 + 60) + 40D: (50+50)+63
The associative property let us associate different terms or factors in order to solve some expression.
We have to find the expression in which this property is more useful.
The only expression where the associative may be helpful is C, as we can associate this way:
(43 + 60) + 40 = 43 + (60 + 40) = 43 + 100 = 143
In the other expression there is no advantage in applying this property.
Answer: C
There are 4 triangles and 8 squares. What is the simplest ratio of triangles to squares?
Answer:
1:2
Step-by-step explanation:
For every triangle there are two squares.
Mark's football team has scored about 24 points each game. They played 12 games this season.
What is the best estimate for the total number of points they scored in the season?
Ο Α. 150
B. 250
OC. 20
OD. 360
Answer:
250
Step-by-step explanation:
What is the value of x?
6x-2(x+4)=12
Answer:
Step-by-step explanation:
6x-2x-8=12
4x-8=12 (add 6x and -2x)
4x=20 (8+12=20)
x=5 (4 divide by 20 =5)
which graph represents the inequality 2.5 greater than the product of -0.5 and a number?
The graph of the inequaity expression is added as an attachment
What are inequality expressions?Inequality expressions are mathematical statements that are represented by variables, coefficients and operators where the opposite sides are not equal
How to plot the graph of the inequaity expression?The mathematical statement is given as
"2.5 greater than the product of -0.5 and a number"
Product means times
So, we have the following representation
"2.5 greater than the product of -0.5 and a number" ⇒ 2.5 greater than -0.5 * a number
Let the number be x
So, we have
"2.5 greater than the product of -0.5 and a number" ⇒ 2.5 greater than -0.5x
Greater than is represented by >
So, we have
"2.5 greater than the product of -0.5 and a number" ⇒ 2.5 > -0.5x
Next, we plot the graph of the inequality expression
See attachment for the graph of the inequality expression
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someone please help me!!!!
Answer:
First Choice:
(1.4)(0.18)²
Step-by-step explanation:
Using the negative exponent rule
[tex]\left(\dfrac{a}{b}\right)^{-1} = \dfrac{b}{a}[/tex]
we get
[tex]\left(\dfrac{5}{7}\right)^{-1} = \dfrac{7}{5}[/tex]
[tex]\dfrac{7}{5} = 1.4\\\\[/tex]
Therefore
[tex]\left(\dfrac{5}{7}\right)^{-1}\left(0.18\right)^2\\\\= (1.4)(0.18)^2[/tex]
Long division worked out 19 divided by 6,927
As per the long division, the value of 19 divided by 6,927 is 0.002742
Long division:
Long division is the mathematical method for dividing large numbers into multiple smaller groups or parts. The number which we divide into small groups is called the dividend, the number by which we divide is called the divisor.
Given,
Here we have to divide the number 19 by 6927.
When we divide the number, we have to following the following steps,
1) Set up the problem with long division bracket. Put dividend inside bracket and divisor on outside left.
2) 6927 goes into 19000 (2-times). Put a 2 in the next place of quotient and multiply 6927 by 2 to get 13854. Subtract 13854 from 19000 to get remainder (19000-13854=5146).
3) Now, bring down 0 from the dividend, to make 51460
4) 6927 goes into 51460 (7-times). Put a 7 in the next place of quotient and multiply 6927 by 7 to get 48489. Subtract 48489 from 51460 to get remainder (51460-48489=2971).
5) Now, bring down 0 from the dividend, to make 29710
6) 6927 goes into 29710 (4-times). Put a 4 in the next place of quotient and multiply 6927 by 4 to get 27708. Subtract 27708 from 29710 to get remainder (29710-27708=2002).
7) Now, bring down 0 from the dividend, to make 20020
8) 6927 goes into 20020 (2-times). Put a 2 in the next place of quotient and multiply 6927 by 2 to get 13854. Subtract 13854 from 20020 to get remainder (20020-13854=6166).
This process is continued so we have to take only up to these one.
Then this can be displayed in the following figure.
Question: Divide the number 19 by 6,927 using the long division method.
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On a coordinate plane, point A is located (-2,2) and point B is located at (6,-1). Determine the coordinates of the point that is 7/8 of the distance from a to b
The coordinates of the point that at 7/8 from a to b are (5, -5/8)
How to determine the coordinate of the point on the line segment?On the segment, we have the following endpoints
A = (-2, 2)
B = (6, -1)
Also, we have the line ratio to be
Ratio, m : n = 7/8
Express the ratio as a ratio
So, we have
m : n = 7 : 8 - 7
Evaluate the difference
So, we have
m : n = 7 : 1
The coordinate of the point at the given distance is then calculated as
Point = 1/(m + n) * (mx2 + nx1, my2 + ny1)
So, we have
Point = 1/(7 + 1) * (7 * 6 + 1 * -2, 7 * -1 + 1 * 2)
Evaluate the products
So, we have
Point = 1/8 * (42 -2, -7 + 2)
Evaluate the sum and the difference
So, we have
Point = 1/8 * (40, -5)
Evaluate the products
So, we have
Point = (5, -5/8)
Hence, the coordinates of the point that is 7/8 of the distance from a to b are (5, -5/8)
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??????????????????/?
iven
adiius of circle = 3 ft
ind
rea and circumference of a circle
xplnanation
Circumference of a circle is given by
[tex]\begin{gathered} C=2\pi r \\ C=2\times3.14\times3 \\ C=18.84ft \end{gathered}[/tex]Area of circle =
[tex]\begin{gathered} A=\pi r^2 \\ A=3.14\times3\times3 \\ A=28.26ft^2 \end{gathered}[/tex]inal ANnswer
ircumference =
[tex]18.84ft[/tex]Area =
[tex]28.26ft^2[/tex]
The freezing point of seawater is −2 °C. The freezing point of nitric acid is −42 °C.
A photo of frozen seawater is shown.
How much greater is the freezing point of seawater than the freezing point of nitric acid?
The difference between the freezing point of seawater and the freezing point of nitric acid is 40 °C.
As per the question, we can write
The freezing point of seawater = −2 °C.
The freezing point of nitric acid = −42 °C.
We were asked to calculate the difference between the freezing point of seawater and the freezing point of nitric acid. We can find the difference between the freezing point of seawater and the freezing point of nitric acid by following the steps mentioned below;
The difference between the freezing point of seawater and the freezing point of nitric acid = Freezing point of Seawater - Freezing point of nitric acid
The difference between the freezing point of seawater and the freezing point of nitric acid = -2 - (-42) = 40 °C.
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what is the answer of that
40° is the value of the angle ∠QPR.
What are angles?When two straight lines or rays intersect at a single endpoint, an angle is created. The vertex of an angle is the location where two points come together. The Latin word "angulus," which means "corner," is where the word "angle" originates. The names of fundamental angles include acute, obtuse, right, straight, reflex, and full rotation.So, PQ ⊥ PS then, ∠QPS = 90°.
According to the given figure: ∠QPR + ∠RPS = ∠QPS
Then,
7x - 9 + 4x + 22 = 9011x + 13 = 9011x = 90 - 1311x = 77x = 7So, ∠QPR = 7x - 9°
Substitute x = 7 as:
7(7) - 9°49 - 9°40°Therefore, 40° is the value of the angle ∠QPR.
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Write an equation of the line passing through the point A(6,-1) that is perpendicular to the line y=-2x+8
Answer:
[tex]y+1=\frac{1}{2}(x-6)[/tex]
Step-by-step explanation:
Perpendicular lines have slopes that are negative reciprocals, so the slope of the line to be found is 1/2.
Substituting into point-slope form, the equation is
[tex]y+1=\frac{1}{2}(x-6)[/tex]