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Lerok [7]
3 years ago
5

Please help me out with this question

Mathematics
1 answer:
weqwewe [10]3 years ago
7 0

The area of a circle is given by

A = \pi r^2

And the radius is half the diameter:

So, you have

A = 3.1416\cdot \left(\dfrac{27}{2}\right)^2

which evaluates to 572.5566

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Marie purchased a 29.00 gift. She uses a coupon that offers 30 percent. How much will she spend on the gift after the coupon?
asambeis [7]

Answer:

$20.30

Step-by-step explanation:

The usual price of the gift is $29.00

Marie will get 30% DISCOUNT on this price if she uses her coupon. So, the final price would be 30% less than $29.00

First, we need to find 30% of $29.00. Then we need to subtract that from original price (29).

Convert percentage to decimal first:

30% = 30/100 = 0.3

Now multiply this with 29 to get:

0.3 * 29 = $8.70

We subtract this from original price to get DISCOUNTED PRICE:

$29.00 - $8.70 = $20.30

6 0
4 years ago
I need explanations. I don't understand this. Please click on the picture.
AlekseyPX
1. find the area of the two triangles, including the shaded section. the formula for this is a=1/2bh

the height and base are both 24 inches. this is because you add the 10 from the side of the square to the 14 that is given

so:

a=1/2(24)(24)
a=(12)(24)
a=288 sq. inches

since there are two triangles, you would multiply the area by 2

a=2(288)
a=576 sq. inches

now, since you only need the unshaded section, you have to take away the shaded section, which is a square. to do this, you must calculate the area of the square and take it away from the area of both triangles.

a=576-(lw)
a=576- (10)(10)
a=576-100
a=476 sq. inches

that is your answer
5 0
4 years ago
A cab driver charges a fixed rate of $3 plus an additional $1.50 for each mile driven. When representing this situation with a f
Andreas93 [3]
The independent variable would be the fixed rate of $3 because the amount for each mile driven changes based on how far they drive
3 0
3 years ago
What's a squared plus a squared
ad-work [718]

for example lets use 3^2 + 4^2, you add the main numbers, 3 and 4 to get 7, then there are still the exponents, the squared signs, they don't change, they stay as a two. If your problem required a single whole number, then you have to square the 7, 7*7 is 49, so that or 7^2 would be your final answer.
5 0
4 years ago
Read 2 more answers
When constructing inscribed polygons and parallel lines, how are the steps similar?
monitta
The intersecting arcs are created and connected. 
8 0
4 years ago
Read 2 more answers
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