2 years ago

The expression (y to the power of 20)(y to the power of −5)2 is equivalent to yn. What is the value of n?

Mathematics

1 answer:

irina [24]2 years ago

5 0

Answer: 10

Step-by-step explanation: hope this helps

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Calculate 4 raise to power 2 multiply by 5 raise to poer 2 minus 18 raise to power 2

Paladinen [302]

Answer:

Step-by-step explanation:

4^2 x 5^2 - 18^2

PEMDAS is our acronym for order of operations: Parentheses, exponents, multiplication, division, addition, subtraction.

Since we have no parentheses, we'll calculate the numbers and exponents (PEMDAS) first. "to the power of 2" is also called "squared" and means multiplying that number by itself.

(4x4) x (5x5) - (18x 18)

=16 x 25 - 324

Now we multiply: (PEMDAS)

= 400 - 324

then subtract: (PEMDAS)

=76

3 0

3 years ago

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7^3 times 7^-7 times 7

dusya [7]

Hello there! :)

Answer: $\frac{1}{343}$

*The answer must have a fraction.*

Step-by-step explanation:

Lesson: Zero and Negative Exponents.

Distributive property: a(b+c)=ab+ac

First, you apply exponent rule.

$a^b*a^c=a^b^+^c$

$7^-^3$

$\frac{1}{7^3}=7^3=7*7*7=343$

Final answer: $\frac{1}{343}$

Hope this helps!

Thanks!

-Charlie

Have a great day!

4 0

3 years ago

186 = 6 (3n + 7) answer for N

Vesnalui [34]

N=8 is the correct answer

7 0

2 years ago

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Explain what is 21=m + 14 1/6

SCORPION-xisa [38]

Step-by-step explanation:

To solve for m, we need to have m on the right side by itself.

Subtract 14 1/6 from both sides:

$6\frac{5}{6} =m$

6 5/6 equals m.

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2 years ago

Divide. 8.64÷(−0.27) Enter your answer in the box.

tatyana61 [14]

32 is your answer hope it helped :) welcome

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3 years ago

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