Mr. Davis got the Mother's Day Special regularly priced, which is $24.80. For Mrs. Davis, 40% off of $24.80 is $14.88. For Sue, half of $24.80 is $12.40. Once you add them add up, you get $52.08.

4 0

3 years ago

Use exponent properties to simplify the following expression with a positive exponent.

Alecsey [184]

$a^{-n}=\dfrac{1}{a^n}\\\\2^{-8}=\dfrac{1}{2^8}\\\\a^n\cdot a^m=a^{n+m}\\\\2^5\times2^1=2^{5+1}=2^6\\\\2^5\times2^{-8}\times2^1=\boxed{\dfrac{2^6}{2^8}}$

3 0

3 years ago

The sum of 86, 68, and 38 is 192. What else do you know about the sum of 68, 38, and 86?

Sveta_85 [38]

<span>We have 2 given numbers:
=> 86 + 68 + 38 = 192
=> 68 + 38 + 86 = 192 also
This kind of process used commutative property system of equation in where:
a + b = b + a
No matter what sequence you are going to use, the answer would always be the same.
In the given 2 equations, notice that both digits of 2 group of equation contains the same number. The only difference is they were added with different orders. Yet the answers are still the same.

</span>

8 0

3 years ago

F(x)=2(x-5)(x+7) What is f(-7)

jenyasd209 [6]

Answer:

Step-by-step explanation:

6 0

2 years ago

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