3 years ago

Sarah wants to find the area of a rectangle. she knows the length of the rectangle is 9 inches. what else does she need to know?

1 answer:

4 0

Area of a rectangle can be found with the formula:
Area = length × width

If Sarah knows the length, she should know the width in order to find out the area of the rectangle.

Answer: width

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seropon [69]

Answer:

x= 7 $\sqrt{2}$

Step-by-step explanation:

It's a 45 45 90 triangle

The legs are = x while the hypotenuse is x $\sqrt{2}$ .

Therefore the answer is 7 $\sqrt{2}$

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3 years ago

Please answer asap this is 7th grade math<br> find the area

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25pi

pi x 10^2 is 100pi

Divide by four = 25pi

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7 out of 17 coin in the bag

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3 years ago

After reading 80% of her e-mails in her inbox, Danette still has M unread e-mails. Which of the following expressions could repr

sergey [27]

Answer:

(Choice A) 5M

Step-by-step explanation:

Let total no. of e-mails in inbox be x

Since she read 80 % of mails i.e 80 % of x

⇒ $80\% \times x$

⇒ $\frac{80}{100}\times x$

⇒ $0.8 x$

So, she read 0.8x e-mails.

So, remaining email = total e-mails - read e-mails

$=x-0.8x$

Since we are given that Danette still has M unread e-mails.

⇒ $M=x-0.8x$

⇒ $M=x(1-0.8)$

⇒ $M=x\times 0.2$

⇒ $\frac{M}{0.2}=x$

⇒ $\frac{10M}{2}=x$

⇒ $5M=x$

Thus the expression represent the number of e-mails Danette had in her inbox before she started reading is 5M.

Hence Choice A is correct.

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3 years ago

What can you tell about the mean of each distribution ?

postnew [5]

There isn’t enough info provided

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3 years ago

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