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Darya [45]
2 years ago
14

8n+7=31 what is the answer

Mathematics
2 answers:
inysia [295]2 years ago
7 0
<span>8n+7=31
8n = 31 -7
8n = 24
n = 3

------------------
picture
n+ 5 = -1 * (-16)
n+ 5 = 16
n = 16 -5
n = 11</span>
kifflom [539]2 years ago
6 0
8n= 31-7. next line 8n = 24 next line n= 24/8. ( 24 divide by eight ) n =3
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\rm 3x^2  is the polynomial of one variable with second-order and x^2y+3xy^2+1  is the polynomial of two variables with third-order

<h3>What is polynomial?</h3>

Polynomial is the combination of variables and constants in a systematic manner with "n" number of power in ascending or descending order.

We have polynomials:

\rm 3x^2  and

x^2y+3xy^2+1

For 3x^2

In this polynomial, the number of variables is one and the maximum power of x is 2, therefore:

This is the polynomial of one variable with second order.

In polynomial,  x^2y+3xy^2+1 there are two variables x and y.

The maximum power of x is 3( x has a power of 2 and y has a power of 1)

This is the polynomial of two variables with third order.

Thus, \rm 3x^2  is the polynomial of one variable with second-order and x^2y+3xy^2+1  is the polynomial of two variables with third-order.

Learn more about Polynomial here:

brainly.com/question/17822016

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2 years ago
A right triangle has legs measuring 4.5 meters and 1.5 meters. The length of tge legs of a second triangle are proportional to t
Leviafan [203]
If the legs of both triangles are supposed to be proportional then they would be equal in length because that's what proportional means

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3 years ago
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Answer:

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Step-by-step explanation:

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For part A), to solve for the angle between the base of the ladder and the ground, you'll want to use sine, because we know the lengths of the opposite side and the hypotenuse.

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For part B), finding the angle between the top of the ladder and the building, remember that the sum of the angles in a triangle is 180 degrees, or pi radians, depending on which unit your teacher prefers.

Assuming degrees, we can say that angle y = 180-90-x. You are simply subtracting the two known angles to find the third.

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Answer:

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