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Pavlova-9 [17]
3 years ago
13

Describe how you would use the rules of exponents to simplify (7x?yz) 3. You may indicate an exponent in your answer with ^. For

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
5 0

Answer:

343x^6y^3z^3

Step-by-step explanation:

One of the rules of exponents demands:

(abc)^m=a^mb^mc^m

where a, b, c and m are coefficients.

Furthermore, you use the following rule for exponents of variables that already have an exponent:

(a^n)^m=a^{m*n}

Thus, you can apply this rules in the following way:

(7x^2yz)^3=(7)^3(x^2)^3(y)^3(z)^3=7*7*7x^{2*3}y^3z^3=343x^6y^3z^3

hence, the answer is 343x^6y^3z^3

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Find the simplest interest. principal = $870 interest rate = 3% time = 9 months
JulsSmile [24]

Answer: $889.58

Step-by-step explanation:

⇒<u>Equation:</u>

A = P(1 + rt)

Turn 3% into decimal and you get 0.03, then 9 months/ 12 months = 0.75 years.

<h2><u>WORK ↓</u></h2>

⇒A = 870(1 + (0.03 × 0.75)) = 889.575

⇒A = $889.58

* Hopefully this helps:)  Mark me the brainliest:) !!!!

8 0
3 years ago
Where on the graph of 2x - 6y = 7 is the x-coordinate twice the y-coordinate?
Nikolay [14]

Answer:

The required point is P(-7,\frac{-7}{2}) where, x-coordinate twice the y-coordinate on line 2x - 6y = 7

Step-by-step explanation:

Given equation of line is 2x-6y=7

To find point on graph whose x-coordinate twice the y-coordinate:

Let y be y-coordinate of point

Hence, x-coordinate of point will be 2y

The required point is P(2y,y) on equation of line 2x-6y=7

Now,

2x-6y=7

2(2y)-6y=7

-2y=7

y=\frac{-7}{2}

Thus,

The required point is P(-7,\frac{-7}{2})

Note: Figure show equation of line red line and point P as blue dot.

5 0
3 years ago
The deli server put 0.25 pound (lb) of meat on each sandwich. She used the equation 0.25s = 50 to determine the number of sandwi
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200 is the value of s
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What does this mean!
DENIUS [597]
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Below, I have attached an example graph that may help you understand.

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PLEASE HELP ME ANSWER THIS BECAUSE IM NOT SMART
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Answer:

negative

Step-by-step explanation:

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