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3 years ago

-4 (w+1) -24 Please help guys!

Mathematics

2 answers:

Alenkasestr [34]3 years ago

4 0

Answer:

-4w -28

Step-by-step explanation:

-4 (w+1) -24

Distribute

-4w -4 -24

Combine like terms

-4w -28

r-ruslan [8.4K]3 years ago

4 0

Answer:

-4w-28

Step-by-step explanation:

-4 * w + -4(1) - 24

-4w-4-24

-4-24=-28

-4w-28

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Please help 100 points

muminat

Answer:

Type that out please I can't read it sideways

Step-by-step explanation:

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3 years ago

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A gardener measured the heights of two plants at the end of every week. The function y=3x+8.5 gives the hight of plant a in cent

MAVERICK [17]

Answer:

12 weeks

Step-by-step explanation:

Step one:

given data

let the heights of the plants be y

and the number of weeks be x

Plant A

y=3x+8.5--------------1

Plant B

y=2.5x+14.5----------2

Required

The number of weeks taken for both plants to have the same height

,equate the two expressions above

3x+8.5=2.5x+14.5

3x-2.5x=14.5-8.5

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3 years ago

Which part of the expression is a factor 7(x+8) A. 21 B.8 C. 3x D. 7

Sever21 [200]

It is 7. None of the other ones fit at all

8 0

3 years ago

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21y+7x=56? what is the value of X

PSYCHO15rus [73]

Answer:

x = 8 - 3y

Step-by-step explanation:

$21y+7x=56\\\\21y-21y+7x=56-21y\\\\7x=56-21y\\\\\frac{7x=56-21y}{7}\\\\\boxed{x=8-3y}$

Hope this helps.

4 0

3 years ago

Consider a bell-shaped symmetric distribution with mean of 16 and standard deviation of 1.5. Approximately what percentage of da

fredd [130]

Answer: 95.45 %

Step-by-step explanation:

Given : The distribution is bell shaped , then the distribution must be normal distribution.

Mean : $\mu=\ 16$

Standard deviation : $\sigma= 1.5$

The formula to calculate the z-score :-

$z=\dfrac{x-\mu}{\sigma}$

For x = 13

$z=\dfrac{13-16}{1.5}=-2$

For x = 19

$z=\dfrac{19-16}{1.5}=2$

The p-value = $P(-2$

$0.9772498-0.0227501=0.9544997\approx0.9545$

In percent, $0.9545\times100=95.45\%$

Hence, the percentage of data lie between 13 and 19 = 95.45 %

6 0

3 years ago