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solmaris [256]
3 years ago
13

An artist used silver wire to make a square that has a perimeter of 40 inches. She then used copper wire to make the largest cir

cle that could fit in the square as, shown below.
What is the circumference of the copper circle? Use 3.14 to represent pi.

A. 3.14 inches
B. 31.4 inches
C. 15.7 inches
D. 78.5 inches

Mathematics
1 answer:
Ivan3 years ago
4 0

Answer:

C

Step-by-step explanation:

The side of square will be equal to ciumference of the circle. It is very simple. Now that I told u the key point u could answer the rest.

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The population of a town has grown at an annual rate of 2.7%. How long does it take for it’s population of 18,450 people to doub
charle [14.2K]
It would take 26 years.

The equation will be in the form y = a(1+r)ˣ, where a is the initial population, r is the growth rate as a decimal number, and x is the amount of time.  Using our information we have

y = 18450(1+0.027)ˣ = 18450(1.027)ˣ

We want the population to be doubled; 18450*2 = 36900:
36900 = 18450(1.027)ˣ

Divide both sides by 18450:
36900/18450 = 18450(1.027)ˣ/18450
2 = 1.027ˣ

Using logarithms, we have
\log_{1.027}2=x
\\
\\x=26.017
3 0
3 years ago
Wayne used the diagram to compute the distance from Ferris, to Dunlap, to Butte. How much shorter is the distance directly from
OLEGan [10]

Answer:

10 mi

Step-by-step explanation:

In this question you have to use Pythagorus Theorem. a²+b²=c²

a = 15

b = 20

So, 15²+ 20² = c²

= 225 + 400 = 625

So Ferris to Butte is \sqrt{625} which is 25.

So now you would do 15 + 20 to find out Wayne's distance. 35 - 25 = 10.

Hope it made sense and I didn't waffle

7 0
3 years ago
Read 2 more answers
What is the value of x?<br> (13x + 3)º<br> (4x + 7)
stealth61 [152]

Answer:

54

Step-by-step explanation:

3 0
3 years ago
Abram has $600 in a savings account that earns 1.5% annual simple interest. If he does not make any deposits or withdrawals, how
mariarad [96]
I = Prt
I = $600*.015*(3/4)
I = $6.75
7 0
2 years ago
The isosceles triangle is a scale drawing of a flag.
Zolol [24]

Answer:

Scale factor = \frac{1}{2}

Step-by-step explanation:

Perimeter of the actual flag = 22 in.

Perimeter of the scale drawing of the flag = 11 in.

Since, perimeter of a triangle = Sum of all three sides of the given triangle

Therefore, scale factor of the drawing

= \frac{\text{Measure of the side of drawing}}{\text{Measure of the side of actual}} = \frac{\text{Perimeter of drawing}}{\text{Perimeter of actual}}

= \frac{11}{22}

= \frac{1}{2}

Therefore, scale factor of the drawing will be \frac{1}{2}.                                        

Each side of the scaled triangle will be half of the actual triangle.

6 0
3 years ago
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