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natta225 [31]
3 years ago
15

This shape is made of three identical semicircles.

Mathematics
1 answer:
Yuliya22 [10]3 years ago
8 0

Answer:

48cm

Step-by-step explanation:

The perimeter of first shape is 36cm. There are 3 semi circle (curves).

Therefore,

3 curves of semicircle (arc length) = 36

1 curve of semicircle (arc length) = 36/3

= 12cm

In picture 2,

4 semicircles (They've mentioned that they used the same semicircle for the 2nd shape also)

So,

4×12 = 48cm

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I dont know how to solve these
Ne4ueva [31]

Answer:

137°

Step-by-step explanation:

So, both are equal to each other due to them being the same degree angle.

5x+7=8x-71

subtract 5x on both sides

7=3x-71

add 71 to both sides

77=3x

divide both sides by 3

77/3=x

x equals about 26

insert x into the problems

[5(26)+7]°

this equals 137°

[8(26)-71]°

this equals 137°

7 0
4 years ago
A point-slope equation for a line with the point<br> (-2, 4) and a slope of 3?
IRINA_888 [86]
Y-4=3(x-(-2))

Simplifying you get

y-4=3(x+2)
3 0
4 years ago
Troy took out an 80/20 mortgage to buy a house costing $100,000. The first (80%) mortgage has an interest rate of 4.75%, The sec
tekilochka [14]

Answer:

  $557.51

Step-by-step explanation:

A financial calculator tells you the payments are ...

  on $80,000 at 4.75%: $417.32

  on $20,000 at 7.525%: $140.19

Then the total monthly payment is ...

  $417.32 +140.19 = $557.51

_____

You can use the amortization formula to find the payment (A) on principal P at interest rate r for t years to be ...

  A = P(r/12)/(1 -(1+r/12)^(-12t))

I find it takes fewer keystrokes to enter the numbers into a financial calculator. Both give the same result.

7 0
3 years ago
Can somebody help with questions 8 plzz‼️
pishuonlain [190]

Answer:

53,760,970 households/year

Step-by-step explanation:

First step is to do 65,929,420 - 12,168,450 = 53,760,970

Now divide 53,760,970 by 20 since the difference in 1997 and 1977 is 20

53,760,970/20 = 2,688,048.5

So each year 2,688,048.5 people got cable.

But it would be 53,760,970/year because then you could divide it by how ever many years to see how many people got cable.

Hope this helps!!

8 0
3 years ago
Maria’s hard drive holds 1.0 × megabytes of data. Larry has two hard drives, one that holds 5.1 × megabytes of data and one that
Mademuasel [1]

Answer:

D) Larry can store more data than Maria because the sum of his hard drive space is 1.28 × 10^6

Step-by-step explanation:

Maria’s hard drive holds 1.0 ×10^6 megabytes of data. Larry has two hard drives, one that holds 5.1 × 10^5 megabytes of data and one that holds 7.7 × 10^5 Which statement is true? A) Maria can store more data than Larry because 10^6 > 10^5 B) Larry can store more data than Maria because 5.1 + 7.7 = 12.8 and 12.8 > 1.0 C) Larry can store more data than Maria because the sum of his hard drive space is 1.28 ×10^5 D) Larry can store more data than Maria because the sum of his hard drive space is 1.28 ×10^6

Given:

Maria’s hard drive stores 1.0 × 10^6 megabytes of data.

Larry has two hard drives,

Hard drive A = 5.1 × 10^5 megabytes of data

Hard drive B = 7.7 × 10^5

Hard drive A = 5.1 × 10^5

Hard drive B = 7.7 × 10^5

Hard drive A + hard drive B

5.1 × 10^5 + 7.7 × 10^5

= 12.8 × 10^5

Making sure Maria's hard drive and Larry's hard drive are in the same standard form

= 1.28 × 10^6

Maria's hard drive can only store 1.0 × 10^6 megabytes of data while Larry's hard drive can store 1.28 × 10^6

Therefore,

D) Larry can store more data than Maria because the sum of his hard drive space is 1.28 × 10^6

7 0
3 years ago
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