2 years ago

7^-5 times 7^3 equals what, I need help asap please

Mathematics

1 answer:

djverab [1.8K]2 years ago

5 0

Your answer is 7^(- 2) or $\frac{1}{ 7^{2} }$ or $\frac{1}{49}$

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barxatty [35]

Answer:

Step-by-step explanation:

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2 years ago

Help meeeeeeee please :(.

vodomira [7]

Answer:

$x^{3} -5x^{2} -6x +8 \frac{-2}{x + 3}$

Step-by-step explanation:

$x^{3} -5x^{2} -6x +8 \frac{-2}{x + 3}$

x + 3 / $x^{4} - 2x^{3}-21x^{2} -10x +22$

-( $x^{4} + 3x^{3}$ )

- $5x^{3} -21x^{2} -10x +22$

-( $-5x^{3} -15x^{2}$ )

$-6x^{2} -10x +22$

-( $-6x^{2} -18x$ )

8x +22

-(8x + 24)

$\frac{-2}{x + 3}$

4 0

3 years ago

Without using a calcuator, determine the number of real zeros of the function f(x)=x^3+4x^2+x-6

Natalija [7]

Answer:

-3, -2, 1

Step-by-step explanation:

5 0

2 years ago

You want to buy an item that costs $100. Which is the most cost-effective choice for buying the item?

Lilit [14]

C. Buying it a percent discount without sales tax.

Because of not having to pay $10, so it is awesome.

5 0

2 years ago

Shawna took a test that had a total of 20 items. She got 4/5 of the items correct. How many items did she get correct?

ehidna [41]

Shawna got 16 items correct

Step-by-step explanation:

To find the percentage of answers or part of total answers we multiply the fraction with the total number of items.

Given

Total items on test = 20

Correct items fraction = 4/5

Then,

$Correct\ items=\total\ items * \fraction\ of\ correct\ answers\\= 20 * \frac{4}{5}\\=\frac{80}{5}\\=16$

Shawna got 16 items correct

Keywords: Percentage, fractions

Learn more about fractions at:

#LearnwithBrainly

4 0

3 years ago