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babymother [125]
3 years ago
8

Find the area of the circle. Leave your answer in terms of pi

Mathematics
2 answers:
aleksandr82 [10.1K]3 years ago
6 0

Answer:

100π

Step-by-step explanation:

The formula for calculating area of a circle π×r^2 (r: radius)

The given radius here is 20 ÷ 2 = 10

π × 10^2 = 100π

puteri [66]3 years ago
3 0

Answer:

Step-by-step explanation:

Since area of a circle is pi.r^2

We know that diameter is 20

Radius is half of diameter

So it becomes

Pi.(d/2)^2

So pi.(40/4) is the area of this circle.

Or 40pi/4

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Volgvan
Based on the answer choices, we suspect you intend
.. (x -1) +26 = -4x

This simplifies to
.. x +25 = -4x
.. 25 = -5x . . . . . subtract x
.. -5 = x . . . . . . . divide by the coefficient of x

Selection D appears to be appropriate for the question we think you asked.
4 0
3 years ago
Please lemme know soon, ty
Mrac [35]

Answer:

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4 0
2 years ago
Hey hey u guyss 60 pointsss<br><br><br>-6.1(-4.1) +6.8=<br><br><br>btw hurry im timed plss :)
xenn [34]

Answer:

31.81

Step-by-step explanation:

-6.1 * -4.1 = 25.01

+ 6.8 = 31.81

4 0
2 years ago
Read 2 more answers
Find all the integers,b, that make up the trinomial x2 + bx + 10 factorable.
KonstantinChe [14]

By the fundamental theorem of algebra, we can write

x^2+bx+10=(x-r_1)(x-r_2)

Expanding the right hand side, we get

x^2+bx+10=x^2-(r_1+r_2)x+r_1r_2\implies\begin{cases}r_1+r_2=-b\\r_1r_2=10\end{cases}

We want b to be an integer, which means r_1,r_2 must also be integers. This means r_1,r_2 must be factors of 10. There are several possibilities:

r_1=\pm10,r_2=\pm1\implies b=-(10+1)=-11\text{ or }b=-(-10-1)=11

r_1=\pm5,r_2=\pm2\implies b=-(5+2)=-7\text{ or }b=-(-5-2)=7

So there are 4 possible values for b: -11, -7, 7, and 11.

7 0
3 years ago
eve found a furniture store that sells an entertainment center she wants for $2,445. if the store offers a one-year loan, with a
ExtremeBDS [4]

Answer:

$90

Step-by-step explanation:

Given from the question that the down payment is 10% the selling price of the store this will be;

10/100 * $2445 = $244.50

Monthly payments = $195

For one year, paying $195 per month will give a total of : $195 * 12 =$2340

Adding the down payment to get total amount paid = $2340 + $195 = $2535

The interest paid will be : $2535 -$2445 = $90

3 0
3 years ago
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