2 years ago

Help please :( It’s due In a couple of hours

Mathematics

1 answer:

zhenek [66]2 years ago

8 0

D+b(3) just put them all together

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Help me please, guys <br>

devlian [24]

Answer:

7.7

Step-by-step explanation:

The area of the wall is 4 * 2 = 8.

The radius of each clock is 0.3 / 2 = 0.15.

The area of all 4 circles is 4 * (πr²) = 4 * 3.14 * 0.15² = 0.3.

8 - 0.3 = 7.7

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3 years ago

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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

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

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3 years ago

Determine if the statement is always, sometimes or never true. There are 250 degrees in the sum of the interior angles of a poly

stiv31 [10]

I feel like the answer is sometimes

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2 years ago

Write the following inexponential firm 100,000=

Galina-37 [17]

In exponential for it could be 10 raised to the 5th power or 10^5

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3 years ago

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Rue or False: Temperatures above-zero represent negative numbers. *

skelet666 [1.2K]

Answer:

False

Step-by-step explanation:

tempuratures below zero are negative.

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2 years ago

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