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lesya [120]
3 years ago
13

A building 56 ft high casts a 196-ft shadow. Sarah casts a 14-ft shadow. The triangle formed by the building and its shadow is s

imilar to the triangle formed by Sarah and her shadow. How tall is Sarah?
Mathematics
1 answer:
tatiyna3 years ago
6 0
We have 2 similar triangles here  so the corresponding sides are in the smae ratio.:-

So if  h is Sally's height we have

56 / h = 196 / 14

h = (56*14) / 196   =   4 feet
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Find the radius of a circle that has an area of 6.76 cm². Use it for pi.
Inessa05 [86]

Answer:

<h2>radius = 1.47 cm</h2>

Step-by-step explanation:

Area of a circle = πr²

where

r is the radius

From the question

Area = 6.76 cm²

To find the radius substitute the value of the area into the above formula and solve for the radius

That's

6.76 = \pi \:  {r}^{2}

Divide both sides by π

We have

{r}^{2}  =  \frac{6.76}{\pi}  \\ r =  \sqrt{ \frac{6.76}{\pi} }

r = 1.46689291

We have the final answer as

radius = 1.47 cm

Hope this helps you

8 0
3 years ago
According to a recent study, the average woman's leg hair grows an eighth of an inch per month. A new drug company believes that
Afina-wow [57]

Answer:

Step-by-step explanation:

Null hypothesis should be: The average woman's leg hair grows an eighth of an inch per month: u = eighth of an inch

Alternative hypothesis: The average woman's leg hair growth is not an eighth of an inch per month after treatment: u ≠ eighth of an inch

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5 0
3 years ago
Solve for y<br> y + 8 = 2
ExtremeBDS [4]
Y + 8 = 2
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4 0
3 years ago
11 th term of the following geometric sequence.<br> 10,50,250,1250
Natasha2012 [34]

Answer:

97,656,250

Step-by-step explanation:

The first term, a(1), is 10.  The next is 5 times greater.  And so on.  Thus, the common ratio is 5, and the general formula for this sequence is

a(n) = a(1)*5^(n -1).

Therefore,

a(11) = 10*5^(11 - 1) = 10*5^10  =  97,656,250

6 0
3 years ago
What is the measure of
Dvinal [7]

Answer:

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Step-by-step explanation:

mark me branliest

5 0
3 years ago
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