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3 years ago

4(2x − 7)2 if x = 5...........................

Mathematics

2 answers:

GREYUIT [131]3 years ago

8 0

Answer:

Step-by-step explanation:

Substitute 5 for x in 4(2x - 7):

4(2[5] - 7), or

4(10 - 7), or

4(3) = 12

siniylev [52]3 years ago

3 0

Answer:

Answer should be 24.......

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3 years ago

Number 2: (look at pivture) 10 point

PolarNik [594]

Answer:

Step-by-step explanation:

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3 years ago

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Which operations is the following set closed under: {... , -3, -1, 1, 3, ...}?

Ganezh [65]

Not addition, since $-1+1=0$ and 0 doesn't belong to the set.

Not subtraction, since $1-1=0$ .

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Not division, since dividing some of the numbers results in rationals which do not belong to the set.

What other operations are you supposed to consider?

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3 years ago

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What is 3,952 * 20<br><br> someone please help me im so dumb

Over [174]

3,952 x 20=79,140
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4 years ago

Find the scale factor of the figures below from left to right given the volume of each .

Fudgin [204]

<h3>Answer is choice D) 5:3</h3>

Explanation:

The volumes are in the ratio 3625:783 which reduces fully to 125:27 after dividing both parts by the GCF 29.

Both 125 and 27 are perfect cubes because 125 = 5^3 and 27 = 3^3

Therefore, the volume ratio 125:27 turns to the linear scale factor ratio 5:3

If you were to cube both sides of the linear ratio 5:3, you would get the volume ratio 125:27. Cube rooting both sides will have you go in reverse.

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3 years ago