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4 years ago

12

Which expression is equivalent to 5/2

1 answer:

LenaWriter [7]4 years ago

6 0

Answer:

2.5

Step-by-step explanation:

5/2=2.5

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27^x = 9^x − 4 Question 1 options: x = 8 x = 4 x = −4 x = −8

Mariulka [41]

Answer:

x = -8

Step-by-step explanation:

Given the equation:

$27^x=9^{x-4}$

Note that

$27=3^3\\ \\9=3^2,$

then

$27^x=(3^3)^x=3^{3x}\\ \\9^{x-4}=(3^2)^{x-4}=3^{2(x-4)}$

Rewrite the equation as

$3^{3x}=3^{2(x-4)},$

then

$3x=2(x-4)\\ \\3x=2x-8\\ \\3x-2x=-8\\ \\x=-8$

4 0

4 years ago

Please awnser quickly

lakkis [162]

Answer:

B': (-8,2)

C':(-8,9)

D':(-5,4)

Step-by-step explanation:

If im wrong pls tell me!

7 0

3 years ago

Ms. Bloom brought 4 packs of treats for Halloween. She gave away 2 1/9 packs of treats to her class and gave away 5/9 packs of t

Eddi Din [679]

Answer: 1 1/3 packs of treats

Step-by-step explanation:

2 1/9 + 5/9 = 2 6/9, which can be simplified to 2 2/3.

We subtract 2 2/3 from 4, giving us 1 1/3

8 0

4 years ago

The angles of a triangle are<br> (3x - 17), (x + 40) and<br> (2x – 5)<br> Find the value of x

Gnoma [55]

Answer:

x=27

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

A mountain peak is 12,200 feet above sea level. The valley below is 218 feet below sea level. How far is it from the peak to the

elena-14-01-66 [18.8K]

Answer:

Step-by-step explanation:

/\ 12,200 feet above sea level

/ \

/ \

/ \ Sea level

/ \ 218 feet below sea level

You need to add these two numbers.

12200

<u> + 218</u>

12418

Peak to valley is 12,418 feet

5 0

3 years ago

Read 2 more answers