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maw [93]
2 years ago
5

If A varies direct as a square of R. Find the % increase in A if R is increase by 20%.​

Mathematics
1 answer:
katen-ka-za [31]2 years ago
4 0

Answer:

20%

Step-by-step explanation:

A=R^2

120/100

=1.2

1.2R= new value of R

original of R=R

A^1/2=R

change/origionalx100%

(1.2A^1/2-A^1/2)

-------------------- x 100%

A^1/2

A^1/2 (1.2-1)

--------------- x100%

A^1/2

0.2

---- x100

1

0.2x100

=20%

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How many combinations of nickels,pennies,dimes,and quarter are there in 30 cents
anastassius [24]
There are nearly 18 ways, here are some examples: 
♥ <span>30 pennies 
♥ </span><span>2 dimes + 2 nickels </span>
<span>♥ 2 dimes + 1 nickel + 5 pennies </span>

6 0
2 years ago
Read 2 more answers
What is the most reasonable estimate for the sum? 9/11 + 3/5
Eddi Din [679]
The exact answer would be 78/55, or 1 23/55
7 0
3 years ago
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Find the distance between each pair of points. Round your answer to the nearest tenth. (-6, -5) and (2, 0)
Anna71 [15]

Answer:

The answer is

<h2>9.4 units</h2>

Step-by-step explanation:

The distance between two points can be found by using the formula

d =  \sqrt{ ({x1 - x2})^{2} +  ({y1 - y2})^{2}  }  \\

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(-6, -5) and (2, 0)

The distance between them is

d =  \sqrt{ ({ - 6 - 2})^{2} +  ({ - 5 - 0})^{2}  }  \\  =  \sqrt{ ({ - 8})^{2}  + ( { - 5})^{2} }  \\  =  \sqrt{64 + 25}  \\  =  \sqrt{89}  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \\  = 9.4339811

We have the final answer as

<h3>9.4 units to the nearest tenth</h3>

Hope this helps you

7 0
3 years ago
Pls answer it :'} plzzzzzzzzzzz
adell [148]

Answer:

32units²

Step-by-step explanation:

find the area if the square

2×2 = 4

now find the area of the 3 triangle's

A = 1/2bh

A = 1/2×2×2

A = 2

A = 1/2bh

A = 1/2×6×2

A = 6

A = 1/2bh

A = 1/2×10×4

A = 20

add all the areas up

20 + 6 + 2 +4 = 32

32units²

3 0
2 years ago
X=-2y-3 4y-x=9 determine the point of intersection of each pair of lines if one exists. ​
Drupady [299]

Answer: (-5,1)

Step-by-step explanation:

x=-2y-3

4y-x=9

4y-(-2y-3)=9

4y+2y+3=9

6y+3=9

6y=6

y=1

x=-2y-3

x=-2-3

x=-5

8 0
3 years ago
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