All categories

3 years ago

Which of the following describes the expression? 5(y + 6)

Mathematics

2 answers:

Elina [12.6K]3 years ago

6 0

Answer:

5y + 30

Step-by-step explanation:

5(y+6)

5y + 30

Ymorist [56]3 years ago

4 0

Answer:

D. The product of a constant factor 5 and a 2-term factor x+2

Step-by-step explanation:

Hope that helps

You might be interested in

If 3 ice cream cones cost 8.25 how much do 2 ice cream cones cost

Fed [463]

If 3 ice cream cones cost 8.25 how much do 2 ice cream cones cost?

1 cone cost

8.25 : 3 = 2.75

2 cones cost

2.75 * 2 = 5.5

(8.25 : 3) * 2 = 5.5

4 0

2 years ago

Read 2 more answers

What makes the statement true? 7^-2=? A. 49 B. 1/49 C. 14 D. 1/14

pogonyaev

49
${7}^{ - 2} \\ 7 \times - 7 = - 49$

8 0

3 years ago

Suppose that 45% of people have dogs. If two people are randomly chosen, what is the probability that they both have a dog

mylen [45]

Answer:

$P(Dogs) = 0.2025$

Step-by-step explanation:

Given

$Proportion, p = 45\%$

Required

Probability of two people having dog

First, we have to convert the given parameter to decimal

$p = \frac{45}{100}$

$p = 0.45$

Let P(Dogs) represent the required probability;

This is calculated as thus;

P(Dogs) = Probability of first person having a dog * Probability of second person having a dog

$P(Dogs) = p * p$

$P(Dogs) = 0.45 * 0.45$

$P(Dogs) = 0.45^2$

$P(Dogs) = 0.2025$

Hence, the probability of 2 people having a dog is  $P(Dogs) = 0.2025$ 

4 0

3 years ago

A human resources representative claims that the proportion of employees earning more than $50,000 is less than 40%. To test thi

bearhunter [10]

Answer:

The statistic for this case would be:

$z=\frac{\hat p -p_o}{\sqrt{\frac{\hat p(1-\hat p)}{n}}}$

And replacing we got:

$z= \frac{0.436-0.4}{\sqrt{\frac{0.436*(1-0.436)}{700}}}= 1.92$

Step-by-step explanation:

For this case we have the following info:

$n =700$ represent the sample size

$X= 305$ represent the number of employees that earn more than 50000

$\hat p=\frac{305}{700}= 0.436$

We want to test the following hypothesis:

Nul hyp. $p \leq 0.4$

Alternative hyp : $p>0.4$

The statistic for this case would be:

$z=\frac{\hat p -p_o}{\sqrt{\frac{\hat p(1-\hat p)}{n}}}$

And replacing we got:

$z= \frac{0.436-0.4}{\sqrt{\frac{0.436*(1-0.436)}{700}}}= 1.92$

And the p value would be given by:

$p_v = P(z>1.922)= 0.0274$

4 0

3 years ago

Which point can be found using the vertical line x = –9 and the horizontal line y = 8?

Fudgin [204]

ANSWER

The point is
$(-9,8).$

EXPLANATION
When two nonparallel lines are drawn on the same plane, they will intersect at a unique point. This point represents the solution to the two systems of equations represented by the lines.

The vertical line
$x = - 9$

and the horizontal line
$y = 8$

will intersect at
$(-9,8).$

This is the unique solution to the two equations.

See graph.

7 0

3 years ago