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Vikentia [17]
3 years ago
8

Type the correct answer in the box. Assume that pi=3.14 and round to the nearest hundredth.

Mathematics
2 answers:
Virty [35]3 years ago
7 0
<h2>Answer:</h2>

The area of shape is: 48.38 square centimeters

<h2>Step-by-step explanation:</h2>

The area of the shape is the area of the square minus the sum of the area of four half semicircles.

We know that four half semicircles will be equal to one circle.

Hence, the area of shape is:

Area of square-Area of circle.

We know that the area of a square with side length s is calculated by:

\text{Area\ of\ square}=s^2

Also, the area of a circle with radius r is calculated by using the formula:

\text{Area\ of\ circle}\pi r^2

Here the side length of the square i.e. s=15 cm.

and the radius of the circle i.e. r=15/2 cm

Hence,

\text{Area\ of\ square}=(15)^2

i.e.

\text{Area\ of\ square}=225\ cm^2

and

\text{Area\ of\ circle}=3.14\times (\dfrac{15}{2})^2

i.e.

\text{Area\ of\ circle}=176.625\ cm^2

Hence, The area of shape is:

\text{Area\ of\ shape}=225-176.625

i.e.

\text{Area\ of\ shape}=48.375\ cm^2

ikadub [295]3 years ago
4 0
White area = \[\frac{15^2\pi}{4}\] Shaded area = \[15^2-\frac{15^2\pi}{4}\]
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Do the ratios 42/56 and 56/64 form a proportion?<br> if they do explain your answer
Volgvan
Lets check...

42/56 = 56/64
cross multiply
(56)(56) = (42)(64)
3136 = 2688...(incorrect)...these are not proportional

proportions are nothing but equivalent fractions
42/56 = 3/4
56/64 = 7/8
as u can see, they are not equivalent fractions...so they are not proportional
4 0
3 years ago
What numbers add to 10 and multiply to negative 144?
Ilya [14]
The answers would be -8 and 18

-8×18 = -144
-8+18 = 18-8 = 10
4 0
3 years ago
This question is from Apex: Algerba 1 Sem 2: 3.5.3 Quiz (PLEASE HELP! Thanks)
Radda [10]

Answer:A

Step-by-step explanation:

3 0
3 years ago
Glenn Andrews recently bought a new motorbike for $3,950. If he had to pay 6 percent sales tax on the bike, what was the total c
Lorico [155]
FIND TAX
=$3950 * 6%
=3950 * 0.06
=$237 tax

FIND TOTAL
add tax above to bike price
=$3950 + $237
=$4187 total

ANSWER: The cost of the motorbike with tax is $4187.

Hope this helps! :)

3 0
3 years ago
Dale bought a map of his city it uses a scale of 1 inch = 8 miles Dale house and school are 1 1/2 inches apart on the map how fa
shtirl [24]
Alright, if the original scale was 1 inch = 8 miles, and Dale's house to his school are 1 1/2 inches apart, let's find the amount of miles.

Here's a fast way. 1 inch is 8 miles, and half of 8 equals 4 miles, which is 1/2 of an inch., 8 + 4 = 12 miles. 

So if his house and the school were 12 miles apart, and we we're using the 1 inch. = 6 miles scale, then it'd be 2 inches on the map. 

How?

If 1 inch. = 6 miles
x inches = 12 miles

12/6 = 2 

2 inches = x
4 0
3 years ago
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