3 years ago

Which of the following values satisfies the inequality 9 < 2x + 7 < 15?

Mathematics

1 answer:

scZoUnD [109]3 years ago

8 0

Answer:

B. X = 2

Step-by-step explanation:

2(0)+7 = 7 --> 7<9 so no

* 2(2)+7 = 11 --> 9<11<15 so yes *

2(4)+7 = 15 --> 15 = 15 so no

2(6)+7 = 19 --> 19>15 so no

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Answer:

Step-by-step explanation:

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3 years ago

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Pani-rosa [81]

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3 years ago

Represent the following expressions as a power of the number a (a≠0): c ((a2)−2)5÷(a4a)3

s2008m [1.1K]

Answer:

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Step-by-step explanation:

Given: $\frac{((a^2)^{-2})^5}{a^4.a^3}$

We know that when the bases are same the powers can be added. i.,e.,

(xᵃ)ᵇ = x ⁽ᵃ ⁺ ᵇ⁾

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3 years ago

One year ago, Joan was five times as old as her pony. In one year's time, the sum of the ages will be 22. How old is Joan now?

iogann1982 [59]

Answer:

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Step-by-step explanation:

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3 years ago

Simplify 3 + 5(x - 4)

tino4ka555 [31]

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3 years ago