2 years ago

Find the number of ways to listen to 4 different CDs from a selection of 15 cds?

Mathematics

2 answers:

Mekhanik [1.2K]2 years ago

5 0

Answer: letter a should be the correct answer

Step-by-step explanation:

Alex787 [66]2 years ago

4 0

D is the answer for this question

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The width of a rectangle is the length minus 4 units. The area of the rectangle is 12 units. What is the width, in units, of the

marusya05 [52]

Answer:

Step-by-step explanation:12-4=8

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1 year ago

Alexi’s restaurant bill is $58, and he wants to leave a 20 percent tip. Which expression represents the total amount that Alexi

IRISSAK [1]

Answer:

58 dollars (0.20) + 58 dollars

Step-by-step explanation:

58 dollars (0.20) + 58 dollars

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2 years ago

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(-9,-2) (-5,0)<br> What’s the slope

serious [3.7K]

Answer:

0.5 or 1/2

Step-by-step explanation: Use the slope formula: y2 - y1 / x2 - x1

0 - (-2) / -5 - (-9)

2 / 4

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2 years ago

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Identify all the Geometric Sequence(s) from the options below-

MAVERICK [17]

1.) Not a sequence
2.) 2^n-1
3.) Not a sequence
4.) 81/3^n-1
5.) -(-3)^n-1
6.) Not a sequence

7 0

2 years ago

20 points!!! first answer gets brainliast. Don't need too much explanation thank you!

KengaRu [80]

Answer:

The answer to your question is below

Step-by-step explanation:

2. $\sqrt{-128}$ Just find the prime factors of 128 and simplify

$\sqrt{-2^{7}} = \sqrt{-2^{6} 2} = 2^{3}i \sqrt{2}$

$8i\sqrt{2}$

3.- $\sqrt{-9} + \sqrt{-16}$ Get the square roots and simplify

3i + 4i

4.- None of the choices is equal to one, because the exponents are pair.

5.- 1/3x² + 10 = 7

1/3x² = 7 - 10

1/3x² = -3

x² = -3(3)

x² = -9

x = ±3i

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2 years ago