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Tom [10]
3 years ago
9

Multiply your answer should be in a monomial standard form (7h^3)(3h^7)

Mathematics
2 answers:
KonstantinChe [14]3 years ago
5 0

Answer:

21 h^10

Step-by-step explanation:

(7h^3)(3h^7)

Lets multiply

7*3  h^3 h^7

When the bases are the same , we add the exponents (x^a * x^b) = x ^ (a+b)

21 h^(3+7)

21 h^10

alexdok [17]3 years ago
3 0

Use\ a^n\cdot a^m=a^{n+m}\\\\(7h^3)(3h^7)=(7)(h^3)(3)(h^7)=(7)(3)(h^3)(h^7)=21h^{3+7}=\boxed{21h^{10}}

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Explanation:
Any number multiplied by itself is squared. (ie. 36 x 36 is 36 ^ 2, 2 x 2 is 2^2 etc)

Hope this helps!! :)
3 0
2 years ago
A student makes a ​$10.50 purchase at the bookstore with a​ $20 bill. The store has no bills and gives the change in quarters an
Leviafan [203]

Answer: he collected 22 quarters and 8 fifty-cent pieces

Step-by-step explanation:

Given;

The total amount of money he is to collect is;

A = 20 - 10.50 = $9.50

Let x represent the number of quarter he collected.

Then the number of fifty-cent pieces he collected will be; 30-x

Therefore we can represent it with the equation below;

0.25x + 0.50(30-x) = 9.50

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x = (15-9.50)/0.25

x = 5.50/0.25

x = 22

The number of fifty-cent is equal to;

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3 0
3 years ago
reflectional symmetry is the quality a design if it maintains all characteristics when it is rotated about a point true or false
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7 0
3 years ago
What are the solutions to
statuscvo [17]
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3 years ago
In a right triangle, if tan x = 1/2 then what is cos x
NARA [144]

Answer:

               2√5

cos x = -------------

                   5

Step-by-step explanation:

If tan x = 1/2 then what is cos x?  

Recall that tan x is defined as the quotient sin x / cos x, so that in this case sin x / cos x = 1 / 2 = opp side / adjacent side.  Also, recall that cos x = adj side / hypotenuse.

To determine cos x, we need to find the length of the hypotenuse.  That, in turn, through use of the Pythagorean Theorem, is √(1^2+2^2), or √5.

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               2√5

cos x = -------------

                   5

5 0
3 years ago
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