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Sati [7]
3 years ago
14

Simplify this equation 7(2x)

Mathematics
1 answer:
RoseWind [281]3 years ago
5 0

Answer:

14x

Step-by-step explanation:

7 x 2 = 14

since we are multiplying 2x by 7 its 14x

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4^x+7 = 8^2x-3 Solve each equation showing work please
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If 4=2^2

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3 0
3 years ago
Element X decays radioactively with a half life of 11 minutes. If there are 870 grams
exis [7]

Answer:

27.5 minutes

Step-by-step explanation:

Using,

R/R' = 2ᵃ/ᵇ------------------ Equation 1

From the equation,

R = mass of Element X before radioactive decay, R' = mass of element X after radioactive decay, a = Time taken, b = half life.

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Substitute these values into equation 1

870/154 = 2ᵃ/¹¹

(870/154)¹¹ = 2ᵃ

Solve for a

2ᵃ = (5.649)¹¹

2ᵃ = 187061.26

Taking the logarithm of both side,

Log2ᵃ = Log(187061.26)

⇒ a = log(187061.26)/log2

a = 8.272/0.301

a = 27.5 minutes

5 0
3 years ago
What is the value of an annuity due at the end of 15 years of quarterly deposits of $2,000.00 with terms of 8 percent compounded
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