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skelet666 [1.2K]
3 years ago
15

Simplify the expression. 8x^-10 y^'6 -2x^2y^-8 Write your answer without negative exponents.​

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
8 0

Answer:

8x^{-10}y^6 - 2x^2y^{-8} = \frac{8y^{14} - 2x^{12}}{x^{10}y^8}

Step-by-step explanation:

Given

8x^{-10}y^6 - 2x^2y^{-8}

Required

Simplify

Rewrite as:

8x^{-10}y^6 - 2x^2y^{-8} = \frac{8y^6}{x^{10}} - \frac{2x^2}{y^8}

Take LCM

8x^{-10}y^6 - 2x^2y^{-8} = \frac{8y^6*y^8 - 2x^2 * x^{10}}{x^{10}y^8}

Apply law of indices

8x^{-10}y^6 - 2x^2y^{-8} = \frac{8y^{14} - 2x^{12}}{x^{10}y^8}

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A newspaper reported the results of a survey on the planning habits of men and women. In response to the question​ "What is your
Troyanec [42]

Answer:

H₀: p₁ - p₂ = 0

H₁: p₁ - p₂ > 0

Step-by-step explanation:

A null hypothesis is a hypothesis that says that there's no statistical relation between the variables/data.

On the other hand, and alternative hypothesis says that there is a statistical relation between the variables. And this hypothesis is what the researcher wants to prove.

The null and alternative hypotheses are mutually exclusive.

In the present problem, what needs to be tested is <u>whether the percentage of men who prefer keeping track of appointments in their head p₁ is larger than the percentage of women p₂.</u>

Our null hypothesis would be the one that states that there's no statistical relation between p₁ and p₂. In other words, the percentage of men who prefer keeping track in their head is not larger than women's percent. Therefore

H₀: p₁ - p₂ = 0

Our alternative hypothesis would indicate that there is a statistical relation between the variables. Since t<u>he researcher wants to prove that a larger percentage of men keep track of appointments in their head</u> in comparison with women, this would be that p₁ is in fact larger than p₂

H₁: p₁ - p₂ > 0

7 0
3 years ago
What is 22% of 400?<br> please help
Morgarella [4.7K]
22% of 400

88 is your answer
3 0
3 years ago
Read 2 more answers
Find the first 4 terms for the given function. ƒ (n) = n^3 - 1
nikitadnepr [17]

Answer:

0,7,26, and 63

Step-by-step explanation:

4 0
3 years ago
I need to do all of them.
OLEGan [10]

uh, solve for x? Its simple, but first, since it is a prep for a test, you should study how to solve for x, which is easy. So To solve for x, bring the variable to one side, and bring all the remaining values to the other side by applying arithmetic operations on both sides of the equation. Simplify the values to find the result.

Let’s start with a simple equation as, x + 2 = 7

How do you get x by itself?

Subtract 2 from both sides

⇒ x + 2 - 2 = 7 - 2

⇒ x = 5

Now, check the answer, x = 5 by substituting it back into the equation. We get 5 + 2= 7.

L.H.S = R.H.S

And then for a triangle:

Solve for x" the unknown side or angle in atriangle we can use properties of triangle or thePythagorean theorem.

Let us understand solve for x in a triangle with the help of an example.

△ ABC is right-angled at B with two of its legs measuring 7 units and 24 units. Find the hypotenuse x.

then in △ABC by using the Pythagorean theorem,

we get AC2 = AB2 + BC2

⇒ x2 = 72 + 242

⇒ x2 = 49 + 576

⇒ x2 = 625

⇒ x = √625

⇒ x = 25 units

get it? Good

5 0
2 years ago
Which ordered pair in the form (a, b) is a solution of this equation?<br><br> 7a-5b=28
jeka57 [31]

hint NOT answer-

28+5b=7a

5 0
3 years ago
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