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lbvjy [14]
3 years ago
9

Students were randomly sampled and asked their age as they left the school dance. Which line plot displays the data for this sam

ple?
14, 15, 17, 14, 16, 17, 14, 16, 17, 17

Mathematics
1 answer:
disa [49]3 years ago
3 0

Answer:

C

Step-by-step explanation:

When you count these numbers you get:

3 (14's)

1 (15)

2 (16's)

4 (17's)

When you put this into a line plot, you will get one that looks like C

C is your answer

Hope this helps!

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Write the equation of the ellipse in standard form
NNADVOKAT [17]

Answer:

h=1    K =2    a =6    b=2

Step-by-step explanation:

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5 0
4 years ago
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Based on data, here is a regression line comparing the variables y = mass of a bar of soap in grams and x = number of days soap
Irina18 [472]

Answer:

D .For every day the soap is used, the predicted mass of the soap will decrease by 1.8 grams.

Step-by-step explanation:

The given regression equation is

Predicted y = 78.5 – 1.8x where,  y = mass of a bar of soap in grams and x = number of days soap has been used.

Here, slope=b=-1.8.

Slope depicts the unit increase in predicted variable due to change in independent variable.

The given slope -1.8 shows that due to change in number of days soap is used the predicted mass of the soap decreases by 1.8 units. So, we can say that "For every day the soap is used, the predicted mass of the soap will decrease by 1.8 grams".

4 0
4 years ago
If lines and and cd are parallel,which if the following statements are true?
faltersainse [42]

Answer:

A

Step-by-step explanation:

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7 0
2 years ago
Find the equilibrium quantity and equilibrium price for the commodity whose supply and demand functions are given.
expeople1 [14]
Rewriting the two equations:

[Supply] p = q^2+20
[Demand] p=-4q^2+10q+18600

Equilibrium price is when 
Supply = Demand
q^2+20 = -4q^2+10q+18600
q^2+4q^2+20-10q-18600 = 0
5q^2-10q-18580=0 ⇒ Simplifying the equation by dividing each term by 5

q^2-2q-3716=0

The simplified equation is in quadratic form.
There are three main methods for solving a quadratic equation: factorizing, completing the square, or quadratic formula. 

Using the formula, we need the value of a, b, and c which is the constant of the quadratic equation. 
q_1= \frac{-b+ \sqrt{(b)^2-4ac)} }{2a}, and q_2= \frac{-b- \sqrt{(b)^2-4ac)} }{2a}


We have a = 1, b = -2, and c = -3716
Substituting these values into the formula we have
q_1= \frac{-(-2)+ \sqrt{(-2)^2-4(1*-3716)} }{2} =61.97
q_2= \frac{-(-2)- \sqrt{(-2)^2-4(1*-3716)} }{2} =-59.97

Since 'q' represents a quantity, we can't have negative values, so we choose the value of 'q' to be 61.97 ≈ 62 (rounded to the nearest whole number)

Answer: Equilibrium quantity = 62
4 0
3 years ago
Mrs. Amy has 5 bunches of grapes, which she is serving as a snack to a group of children. Each serving is 1/4
omeli [17]

We will see that 20 children can get a serving.

<h3>How to divide fractions?</h3>

To see how many children can get a serving we need to take the quotient between the total amount of grapes and the amount of grapes needed for each serving.

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Notice that we can write 5 as a fraction:

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then:

\frac{5/1}{1/4}

Now, the two numbers in the middle (both ones) remain on the denominator, while the other 2 conform the numerator, then we have:

\frac{5/1}{1/4} = \frac{5*4}{1*1} = 20

So 20 children can get a serving.

If you want to learn more about fractions, you can read:

brainly.com/question/11562149

7 0
3 years ago
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