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dlinn [17]
3 years ago
14

Hey can you please answer this question on 7th grade exponents? thank you! boo

Mathematics
2 answers:
Ket [755]3 years ago
8 0

A. 75 x 0.0016= .12 Has a value between 0 and 1

B. 3^5 / 3^-6 = 177147 Does not a value between 0 and 1

C. 1/4^3 x 1/4^2 = about 0.0009 Has a value between 0 and 1

D. -7^5 / -7^7 = about 0.02 Has a value between 0 and 1

s2008m [1.1K]3 years ago
5 0
I did this before and it’s b
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Step-by-step explanation:

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Perry is buying an I phone that is a sale for 40% off the original price.after he uses a $25 gift card.the total cost before tax
marta [7]

Answer:

$599

Step-by-step explanation:

Given: Discount- 40% off on original price.

           Gift card= $25

           Total cost before taxes is $334.40

Lets assume the original price be "x".

We know there is 40% on original price and Perry uses $25 gift card.

Remember; Total cost= Original\ price- discount- gift\ card

Now, finding the original price of Iphone.

⇒ x-0.40x-25= 334.40

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Adding both side by 25

⇒0.60x= 334.40+25

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Dividing both side by 0.60

⇒ x= \frac{359.4}{0.60}

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3 years ago
How to differentiate y=x^n using the first principle. In this question, I cannot use the rule of differentiation. I have to do t
Zarrin [17]

By first principles, the derivative is

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\displaystyle\lim_{h\to0}\frac{nx^{n-1}h+\dfrac{n(n-1)}2x^{n-2}h^2+\cdots+nxh^{n-1}+h^n}h

A power of h in every term of the numerator cancels with h in the denominator:

\displaystyle\lim_{h\to0}\left(nx^{n-1}+\dfrac{n(n-1)}2x^{n-2}h+\cdots+nxh^{n-2}+h^{n-1}\right)

Finally, each term containing h approaches 0 as h\to0, and the derivative is

y=x^n\implies y'=nx^{n-1}

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