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Westkost [7]
3 years ago
7

How to get 5% of 220 files

Mathematics
1 answer:
shtirl [24]3 years ago
8 0
Divide and then multiply by 100
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You have 88 grams of a radioactive kind of actinium. How much will be left after 44 years if its half-life is 22 years?
mash [69]

Answer:

22 grams

Step-by-step explanation:

loses 50% of it's mass per 22 years

so after 22 years the mass would be 44 grams

22 years later would leave 50% of 44 grams = 22 grams

3 0
3 years ago
What is 720° converted to radians?
deff fn [24]

I HOPE IT WILL HELP YOU.

THANK YOU.

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6 0
3 years ago
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Find the volume of the sphere. Round your answer to the nearest tent
stira [4]

Answer:

See below for answer

Step-by-step explanation:

The radius of the sphere is 5 inches.   Correct?

Formula for the volume of a sphere is 4/3πr³

V = 4/3 · π · r³

V = 4/3 · π · 5³

V = 4/3 · π · 125

 V = 4/3 · 125 · π

 V = 500 /3 · π          

V =   523.3 cubic inches               Using π = 3.14  

if using π on the calculator  then V = 500/3 ·π = 523.6cubic inches

4 0
2 years ago
[5y]^4 when y= 2 Evaluate the expression
Novay_Z [31]

Answer:

10000

Step-by-step explanation:

Well substitute it

(5*2)^4

now follow order of operations (Parenthesis, exponents, multipication-division left to right, etc.)

5*2=10

10^4=10000

so the answer would be

10000 if y is 2

5 0
3 years ago
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What is the slope of the shown picture?
elena55 [62]

Answer:

B. 2 is your answer

Step-by-step explanation:

You will use the slope formula to find the slope of the equation.

(3, 7) and (-2, -3) will be used.

7 and -3 are your y's. 3 and -2 are your x's.

(7 - (-3))/(3 - (-2)) = 10/5 = 2

B. 2 is your answer

5 0
3 years ago
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