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3 years ago

Simplify the expression. Write your answer as a power. (−4)^5⋅(−4)^7

Mathematics

2 answers:

Luda [366]3 years ago

6 0

The Answer is 4^12 or -4^12 I’m not sure

vlada-n [284]3 years ago

3 0

Answer:

(-4)^12

Step-by-step explanation:

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Plz answer question three asp plz

zepelin [54]

Which one the first three???

4 0

3 years ago

Austin walks 2/3 of the way to school and stopped to rest. Devyn walks 4/6 of the way to school and stops for a rest. Where are

bixtya [17]

Answer:

both are at the same distance

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

If y varies directly with x when y=8,x=20 find the value of x when y=42

Alecsey [184]

The value of x is 105 when y=42

Step-by-step explanation:

A direct proportion means that the change in one quantity will also cause the change in other quantity

Given

y varies directly with x

x ∝ y

when the proportionality symbol is removed a proportionality constant is introduced

$x=ky\\k=\frac{x}{y}\\Putting\ y=8\ and\ x=20\\k=\frac{20}{8}\\k = \frac{5}{2}\\So,\ the\ equation\ will\ be\\x=\frac{5}{2}y\\Putting\ y=42\\x=\frac{5}{2}*42\\x=5*21\\x= 105$

The value of x is 105 when y=42

Keywords: Proportion, Direct variation

Learn more about proportion at:

#LearnwithBrainly

5 0

3 years ago

Answer answer answer answer

Mice21 [21]

Answer:

$12 \leqslant x < 26$

4 0

3 years ago

What's the GCF of 56 and 21?

Sedbober [7]

GCF means "greatest common factor."
When I learned this, I was told to try 5 numbers and see if they work and if not, it might be 1.
Those numbers are 2, 3, 5, 7, and 9.
2 goes into 56 but not 21.
3 goes into 21 but not 56.
5 doesn't go into 56 nor 21.
7 goes into both 56 and 21.
9 doesn't go into 56 nor 21.
So since 7 works with both numbers, try numbers divisible by 7 (i.e. 14, 21...)
14 goes into 56 but not 21.
21 goes into 21 but not 56.
You can't go any higher than that since then it would be going above 21.
So the GCF of 56 and 21 is 7.

5 0

3 years ago