it's page 23.. pls
answer it i rlly need it in monday
ty if u answered this.
Answers
Answer:
See picture
Step-by-step explanation:
Related Questions
Write the missing partial products in the area model Then, write the partial to complete the equation below. Find the sum
Answers
The missing partial products are:
10 x 2 = 20
6 x 50 = 300
6 x 2 = 12
The sum of the partial products is,
16 x 52 = 500 + 300 + 20 + 12 = 832
Here the partial products method is used to find the product of two two digit numbers 16 and 52.
For this a table of the form given in the figure is constructed in which the partial products are found.
For this first split 16 and 52 into 10 + 6 = 16 and 50 + 2 = 52.
Then take the partial products between 10 and 50, 10 and 2, 6 and 50, 6 and 2. Then take the sum of all these four values to get the final answer. This is the method of partial products.
So finding the partial products,
10 x 50 = 500
10 x 2 = 20
6 x 50 = 300
6 x 2 = 12
To find the final answer, take the sum of these products.
500 + 300 + 20 + 12 = 832
⇒ 16 x 52 = 832
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In a square, side = 8cm, breadth = ?, area = ?
Answers
In a square, if the side is 8 cm and the square is having all its sides equal. Therefore, the area will be 8×8 = 64 cm²
Square: A plane-closed figure with four sides, having all four sides equal and connected with one another at 90° which creates four right angles.
unlike a rectangle that has both length and breadth and all sides are not equal, rather rectangle has two opposite sides equal.
if, length = breadth, this will result in the formation of a square.
Therefore, Breadth in the square doesn't exist as all sides are equal in the square. Area of a square = side× side
⇒ 8×8 = 64 cm².
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2. Round the following numbers to the nearest 10 thousand:
990,201:_____________________
159,994 :____________________
Answers
Answer:
A, 9100 210 C 1520 99144 NO ES PERO BUENO MIRA AVER SI
Sam spent a total of $24 at the school carnival. He paid a $6 entrance fee and $2 for each ride. Which equation can be used to determine how many rides Sam rode at the carnival?
Answers
Answer:
The correct equation is 2x + 6 = 24.
Two motorcycle dealers sell the same motorcycle for the same original price. Dealer A advertises that the motorcycle is on sale for 7.5% off the original price. Dealer B advertises that it is reducing the motorcycle’s price by $599. When Bonnie compares the sale prices of the motorcycles in both dealers, she concludes that the sale prices are equal.
Let p represent the motorcycle’s original price.
Which equation models this situation?
Answers
The original price of the motorcycle is approximately $7,987.
Here, we are given that p represent the motorcycle’s original price.
The sale price of Dealer A will be-
7.5% less that the original price
= 92.5% of p
= 0.925p
Similarly, the sale price of dealer B will be-
$599 less than original price
= (p - 599)
Now, these two prices are equal, so we can equate the two-
0.925p = (p - 599)
0.925p = p - 599
0.925p - p = -599
-0.075p = -599
p = -599/-0.075
p = 599/0.075
p = 599000/75
p = 7,986.67
Thus, the original price of the motorcycle comes out to be approximately $7,987.
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The cost to produce x units of wire is C = 305x +1350 , while the revenue is R = 35x. Find the interval where the product will at least break even.
Answers
The interval where the product will at least break even is [tex]$\left[\begin{array}{cc}\text { Solution: } & x \leq-5 \\ \text { Interval Notation: } & (-\infty,-5]\end{array}\right]$[/tex]
Given C= 305 x+1350C
R=60 x
To find the interval where the product will at least break even we must have [tex]$R(x) \geq c(x)$[/tex]
[tex]$\Rightarrow \quad 35 x \geq 305 x+1350$[/tex]
[tex]$$35 x \geq 305 x+1350$$[/tex]
Subtract 305 x from both sides
[tex]$$35 x-305 x \geq 305 x+1350-305 x$$[/tex]
Simplify
[tex]$$-270 x \geq 1350$$[/tex]
Multiply both sides by - 1 (reverse the inequality)
[tex]$$(-270 x)(-1) \leq 1350(-1)$$[/tex]
Simplify
[tex]$$270 x \leq-1350$$[/tex]
Divide both sides by 270
[tex]\frac{270 x}{270} \leq \frac{-1350}{270}$$[/tex]
Simplify
[tex]$$x \leq-5$$[/tex]
Mathematical expressions with inequalities are those in which the two sides are not equal. Contrary to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.
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whats the sum of a number and negative three in a algebraic expression
Answers
Answer: x+-3
Step-by-step explanation: So you can make the number a variable so I put x and you add -3 so your answer would be x+-3
Hope this helped!!!!
2. Decide whether or not each equation represents a proportional relationship. a. The remaining length (L) of 120-inch rope after x inches have been cut off: 120- x = L. EMERGENCY
Answers
Due to the fact that the line does not pass through the origin, the equation does not represent a proportionate relationship.
What is proportional relationship?Relationships between two variables that are proportional occur when their ratios are equal. Another way to consider them is that in a proportionate relationship, one variable is consistently equal to the other's constant value. The "constant of proportionality" is the name of this constant.
Given Data
The remaining length (L) of 120-inch rope after x inches have been cut off: 120- x = L.
The fact that
If a relationship between two variables, x and y, can be written as or, then it represents a proportionate variation.
y = kx
The line passes through the origin, and the constant of proportionality, k, is equal to the slope of the line, m.
There are
The length (L) of a 120-inch rope that is left after x inches have been removed.
There are
The dependent variable is L —->. (output variable)
The independent variable is x. (input variable)
The linear formula is
L = 120-x
Due to the fact that the line does not pass through the origin, the equation does not represent a proportionate relationship.
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A musical group wants to see who has downloaded its No. 1 hit song and find out the reasons why. Which description represents a sample?
The first 5,000 people who downloaded its No. 1 hit song
The first 5,000 people who chose not download its No. 1 hit song
All people who downloaded its No. 1 hit song
All people who did not download its No. 1 hit song
Answers
The description that represents a sample is A. The first 5,000 people who downloaded its No. 1 hit song.
What is sampling?Sampling is the process of choosing a portion of a statistical population to estimate attributes of the entire population in statistics, quality control, and survey methods. Statisticians try to get samples that are typical of the population under consideration.
It should be noted that all people who downloaded its No. 1 hit song represents the entire population. The sample is a subset of the population.
In conclusion, the correct option is A.
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If triangle ABC is congruent to triangle DEC,
angle B = 2x + 31 and angle E = 7x - 24
x = ?
Answers
In a case whereby triangle ABC is congruent to triangle DEC, angle B = 2x + 31 and angle E = 7x - 24, the X is 11.
What is the meaning of congruent triangle?It should be noted that when a Triangles are exactly the same in term of size and shape then it is congruent.
Since the angle E and angle B is the same, then we can equate it so that we can find the value of X , then this can be calculated as
(2x + 31) = (7x - 24)
The we have
(7x - 2x) = (31 +24)
The we will have
(5x) =( 55)
Then
x = 11
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Simplify the expression 2(2/5) + 2(-1/5)
Answers
Answer:
[tex]\frac{2}{5}[/tex]
Step-by-step explanation:
2([tex]\frac{2}{5}[/tex] ) + 2(- [tex]\frac{1}{5}[/tex] )
= [tex]\frac{4}{5}[/tex] + (- [tex]\frac{2}{5}[/tex] )
= [tex]\frac{4}{5}[/tex] - [tex]\frac{2}{5}[/tex]
= [tex]\frac{2}{5}[/tex]
The equation y=0.52x+157 gives the cost y of renting a car if the care is driven x
miles. Based on this equation, for every mile the car is driven the cost of increases by
how much?
Answers
Reason
In the y intercept form, y=mx + b
the “m” is the slope or rate of change, in this case it is the $ rate that will be multiplied by the variable “x” which would be the changing number of miles driven.
“B” is the starting point or base price that doesn’t change which is 157.
f(x) = 3x-1 , (f of g)(x) = x^2 , Find g(x)
Answers
Answer:
[tex]g(x)=\dfrac{x^2+1}{3}[/tex]
Step-by-step explanation:
Given functions:
[tex]\begin{cases}f(x)=3x-1\\(f \circ g)(x)=x^2\end{cases}[/tex]
Composite functions are when the output of one function is used as the input of another.
Therefore, the given composite function (f o g)(x) means to substitute function g(x) in place of the x in function f(x).
[tex]\begin{aligned}(f \circ g)(x) & = x^2\\f(g(x)) & = x^2\\\implies 3(g(x))-1 & = x^2\\3(g(x))-1+1 & = x^2+1\\3(g(x))&=x^2+1\\\dfrac{3(g(x))}{3}&=\dfrac{x^2+1}{3}\\\implies g(x)&=\dfrac{x^2+1}{3}\end{aligned}[/tex]
Therefore:
[tex]\boxed{g(x)=\dfrac{x^2+1}{3}}[/tex]
Suppose a life insurance company sells a $280,000 one year term life insurance policy to a 24 year old female for $290. the probability that the female survives the year is 0.999576. compute and interpret the expected value of this policy to the insurance company
Answers
Suppose a life insurance company sells a $280,000 one year term life insurance policy to a 24 year old female for $290.Then The expected value of this policy to the insurance company is $168.76
Probability that Person doesn't die = 0.999567. Profit = Revenue - Cost; Profit = $290 - 0 = $290
Probability that Person dies = 1 - 0.999567 = 0.000433. Profit = Revenue - Cost; Profit = $290 - $280000 = -$279710
Expected Value E(X) = ∑xp(x)
E(X) = $290*(0.999567) + (-$279,710* 0.000433)
E(X) = $289.87443 - $121.11443
E(X) = $168.76
Thus, the expected value of this policy to the insurance company is $168.76
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7. displaying sample means and their errors a researcher is investigating whether a reading intervention program improves reading comprehension for second graders. he collects a random sample of second graders and randomly assigns each second grader to participate in the reading intervention program or not participate in the program. the researcher knows that the standard deviation of the reading comprehension scores among all second graders is σ
Answers
The best plot for these results is given by:
C. Plot C.
How to verify which is the best plot for the results?The mean result for each group is given as follows:
Group 1: 36.8.Group 2: 52.4.Then we have to look at the vertical bars of each plot, and see the scores given.
For plot A, the scores are given as follows:
Group 1: 40.Group 2: 45.For plot B, the scores are given as follows:
Group 1: 22.5.Group 2: 35.For plot C, the scores are given as follows:
Group 1: 35.Group 2: 55.For plot D, the scores are given as follows:
Group 1: 20.Group 2: 45.Plot C has the closest value readings to the actual values of 36.8 and 52.4, hence it is the best option to plot the scores for each group.
What is the missing information?
The problem is missing and is given by the image at the end of the answer.
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Which fractions are equivalent to 0.6? Select all that apply.
Answers
Answer:
22/33,2/3 and 6/9=0.66666666666666666 or 0.6(bar) as asked in question
3/5 is equal to 0.6 not 0.66666666
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IF U ANSWER THIS U GET 50 POINTS.THIS FOR A TEST.
Dealership B has produced the following graph to show that their customers are more satisfied than the customers of two of their competitors. Which statement best describes why the graph is misleading?
A horizontal bar graph titled 'Car Dealership Satisfaction Rating' is shown.
Three bars of data are represented on the graph. The horizontal axis shows a short distance to 70 percent from the left, a longer distance to 80 percent, an equal distance to 90 percent, and another equal distance to the unlabeled end of the axis.
· The first bar is labeled 'Dealership upper A' and extends horizontally to less than half way between 80 percent and 90 percent.
· The second bar is labeled 'Dealership upper B' and extends horizontally to less than half way between 90 percent and the end of the graph.
· The third bar is labeled 'Dealership upper C' and extends horizontally to more than halfway between 80 percent and 90 percent.
A. It is difficult to determine the actual satisfaction levels for each car dealership, so a clear comparison cannot be made.
B. Using percentages makes it seem like there is a large difference in customer satisfaction between Dealership B and its competitors.
C. Not enough car dealerships were included in the survey.
D. Dealership B’s customer satisfaction looks better than it really is because the graph does not start at zero.
Answers
Answer:
the first opinion is the right answer
Step-by-step explanation:
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Which is the most efficient step to solve the equation 2/3n=15 ?
Group of answer choices
Multiply both sides by 2/3
Subtract 15 from both sides
Subtract 2/3 from both sides
Divide both sides by 2/3
Answers
Answer:
This is the most optimal way to resolve the problem:
Step-by-step explanation:
15/n+2 = 3n/n
15/n+2 = 3
3 (n+2) = 15
n = 5 - 2
n = 3
Please Help!!!
Which graph represents the solution to negative one half m is greater than or equal to seven elevenths?
number line with closed circle on point negative 14 over 11 and arrow shaded to the right
number line with closed circle on point negative 7 over 22 and arrow shaded to the right
number line with closed circle on point negative 14 over 11 and arrow shaded to the left
number line with closed circle on point negative 7 over 22 and arrow shaded to the left
Answers
The solution set to the inequality, -1/2m ≥ 7/11, is: m ≤ -14/11.
See attachment for the graph.
How to Graph the Solution Set to an Inequality?If the possible set of values to an inequality is "greater than or equal to" (≥), or "less than or equal to" (≤), then a closed circle is used to indicate the point on the graph.
On the other hand, an open circle is used for "< or >".
If it is "> or ≥" the shaded arrow is drawn to the right, if "< or ≤", it is drawn to the left of the inequality graph.
Given the inequality, -1/2m ≥ 7/11, solve for m:
-1/2m(-2) ≥ 7/11(-2)
m ≤ -14/11 [the sign changes because we are multiplying both sides by negative number]
The solution to the inequality is: m ≤ -14/11.
The graph is given below for m ≤ -14/11.
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Answer:
D
Step-by-step explanation: the answer is D with the arrow pointing to the left.
Hope this helps!
Find the dividend. ___ ÷ 12 = 4.55
5.46
5.64
54.6
56.4
Answers
Answer:
54.6
Step-by-step explanation:
Answer:
54.6
Step-by-step explanation:
Multiply 4.55 by 12 to get 54.6.
Then divide it by 12 to get 4.55
The vertex of the parabloa is (-5,-2). When the x-value is -4
Answers
Answer:
the formula for the vertex is f(x)=a(x-h)²+k
so if you replace -4= a(0-5)²+-2
so a=-0.08
The formula would end up like this f(x)=-0.08(x-5)²+-2
Step-by-step explanation:
help please kylie solved the following problem incorrectly
Answers
a.) In Line 1 Kylie made her error.
b.) Kylie's error is that she opened the bracket -2(x - 5) in the first line and did not change the negative sign to a positive sign as she multiplied -2 and -5 as a negative number multiplied by a negative number is a positive number.
c.) The correct solution to the problem is given by,
Given: 6x - 2(x - 5) = 22
6x - 2x + 10 = 22
4x = 22 - 10
4x = 12
x = 12/4
x = 3
Hence, the value of x is 3 and not 8.
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what is the equation of the line that passes through the points (2,-2) and (3,-4)
Answers
Answer:
y + 2 = -2(x - 2) (point-slope form)
y = -2x + 2 (slope-intercept form)
2x + y = 2 (standard form)
Step-by-step explanation:
[tex]m = \frac{ - 4 - ( - 2)}{3 - 2} = - \frac{2}{1} = - 2[/tex]
[tex]y + 2 = - 2(x - 2)[/tex]
[tex]y + 2 = - 2x + 4[/tex]
[tex]y = - 2x + 2[/tex]
[tex]2x + y = 2[/tex]
Write an equation for each of the following phrases or word problems. Solve for the missing variable.
Three is a number divided by 6.
Answers
The mathematical sentence can be written as:
3 = x/6
And the solution is x = 18.
How to write and solve the equation?Here we have the following mathematical sentence:
"three is a number divided by 6"
If we define x as the "number", then we can write this as:
3 = x/6
So we have a simple linear equation, to solve this, we just need to multiply both sides of the equation by 6, we will get:
3*6 = (x/6)*6
18 = x
We conclude that the solution is 6.
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Find the cube root of 13824 by prime factorisation
Answers
Step-by-step explanation:
the set of prime numbers that, when multiplied together, give
13824:
2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅2⋅3⋅3⋅3
Answer:
24
Step-by-step explanation:
Find f(g(x)) and g(f(x)) and determine whether the pair of functions f and g are inverses of each other.
f(x)=6x+5 and g(x)= x-5/6
a. f(g(x))= (Simplify your answer.)
b. g(f(x))= (Simplify your answer.)
Answers
Step-by-step explanation:
a. f(x) = 6x+5 and g(x) = x--5/6
f(g(x)) = 6x + 5
Now, let x = g(x) (remember f(x) = 6x+5 so we got the x from f(x))
f(g(x)) = 6(x--5/6) + 5
Open bracket
f(g(x)) = 6(x -- 5/6) + 5
f(g(x)) = x -- 5 + 5
f(g(x) = x
b. g(f(x) = x--5/6
g(f(x) = (6x+5) -- 5/6
g(f(x)) = 6x + 5 -- 5/6
g(f(x)) = 6x/6
g(f(x)) = x...
To check for inverse
1/g(f(x) = 1/x
1/f(g(x) = 1/x
Meaning 1/f(g(x) = 1/g(f(x) inverse of each other
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1/2 of a birthday cake was left over from a party. The next day , it is shared among 6 people. How big a piece of the original cake did each person get
Answers
Each person gets 1/12 fraction of the original cake.
What is a fraction?
A fraction, which derives from the Latin word fractus, which means "broken," is a portion of a whole or, more broadly, any number of equal pieces. A fraction, such as one-half, eight-fifths, or three-quarters, indicates how many components of a particular size there are when stated in ordinary English. A common, vulgar, or simple fraction is one that has a non-zero denominator shown below (or after) the line that separates the numerator from the denominator. Composite fractions, complicated fractions, and combined numeral fractions are examples of uncommon fractions that use numerators and denominators.
Each person gets = 1/2 x 1/6 = 1/12
Hence, each person gets 1/12 fraction of the original cake.
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(z+4) (z+2) (z − 1) = 0
-
Select all of the following values that make the equation true.
04
01
0-4
00
0-2
02
0-1
Answers
The Zero Product Property simply notes that if ab = 0, then either a = 0 or b = 0. The solutions exists x = -4, x = -2, x = 1.
What is meant by zero-factor rule?The zero-product property in algebra asserts that two nonzero items cannot be multiplied together to produce zero.
The Zero Product Property simply notes that if ab = 0, then either a = 0 or b = 0 (or both). A product of factors exists zero if and only if one or more of the factors exists zero.
Let the given equation be (x+4)(x+2)(x-1)=0
By using the Zero Factor Principle, we get
If ab = 0 then a = 0 or b = 0
then x + 4 = 0 or x + 2 = 0 or x - 1 = 0
Solve x + 4 = 0
⇒ x = -4
Solve x + 2 = 0
⇒ x = -2
Solve x - 1 = 0
⇒ x = 1
The solutions are x = -4, x = -2, x = 1
Therefore, the correct options exists:
b) 1
c) -4
e) -2
The complete question is:
An equation is shown below.
(x + 4)(x + 2)(x - 1) = 0
Select all of the following values that make the equation true.
a) 4
b) 1
c) -4
d) 0
e) -2
f) 2
g) -1
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which of the following expressions represents the distance between -1/4 and 3/4
Answers
The expression that represents the distance is |-1/4 - 3/4|
How to determine the distance expression?From the question, the endpoints are given as
-1/4 and 3/4
Rewrite the endpoints properly
This is done as follows
Endpoint 1 = -1/4
Endpoint 2 = 3/4
The distance expression between the endpoints is then calculated as
Distance = |Endpoint 1 - Endpoint 2 |
Substitute the known values in the above equation
So, we have the following equation
Distance = |-1/4 - 3/4|
Hence, the disance expression is |-1/4 - 3/4|
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Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.Find the side of a square whose diagonal is of the given measure.Given = 12*10^(1/2) ft.
Answers
We have to find the side of a square with a diagonal with length 12√10 ft.
We can sketch this as:
We can apply the Pythagorean theorem as:
[tex]\begin{gathered} a^2+a^2=(12\sqrt{10})^2 \\ 2a^2=12^2\cdot10 \\ 2a^2=144\cdot10 \\ a^2=\frac{144\cdot10}{2} \\ a^2=720 \\ a=\sqrt{720} \\ a=\sqrt{16\cdot9\cdot5} \\ a=4\cdot3\cdot\sqrt{5} \\ a=12\sqrt{5} \end{gathered}[/tex]Answer: the square side length is 12√5