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krek1111 [17]
3 years ago
7

Simplify the polynomials by combining like terms 3x 5x 4x

Mathematics
1 answer:
lukranit [14]3 years ago
8 0
Hello! Combining like terms is just a fancy way of saying add all these numbers together. As long as numbers have the same variable (in this case x) and the same exponent (they don't have any in this case), you can add them together like normal. So! 3x + 5x +4x is the same as 3+5+4. Your simplified polynomial is 12x. Good luck with the math homework!
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Ksenya-84 [330]

Answer:

A. x+2+x+2

B. 2(x)

C. x+2+x+2=p

2(x)= a

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3 years ago
Can someone pls help me and explain
icang [17]
The floor tile is made up of 5 pieces of 2 inches by 2 inches square.

Area of 1 square = 2 x 2 = 4 in²

Area of 5 square = 4 x 5 = 20 in²

Volume of the floor tile = 20 x 3/4 = 15 in³

------------------------------------------
Answer: 15 in³ (Answer G)
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5 0
3 years ago
CONVERT THE PERCENTAGES FRACTION 130%​
Natasha2012 [34]

Answer:

13/10

Step-by-step explanation:

Its 13/10...

please give brainliest

4 0
2 years ago
Read 2 more answers
What are the answer to both of these. I am confused. Please Help. I will give Brainliest Answer.
Mumz [18]

Answer:

The First 1 is B. And the Second 1 is B. As well.

Step-by-step explanation:

8 0
3 years ago
Please Help. I really don’t get this concept, if you could explain it in detail it would be very appreciated
Dafna11 [192]
<h3>Answer: 24/25</h3>

=================================================

Explanation:

Sine is given to be negative, and so is tangent. This only happens in quadrant Q4

Recall that y = sin(theta), so if sin(theta) < 0, then we're below the x axis.

If tan(theta) < 0, then this means cos(theta) > 0

So we have y < 0 and x > 0 which places the angle somewhere in Q4.

--------------------------

Draw a right triangle as shown below in the attached image. We have AC = 25 and BC = 7. Use the pythagorean theorem to find that AB = 24

So this is what your steps may look like

a^2+b^2 = c^2

7^2+b^2 = 25^2

b^2+49 = 625

b^2 = 625-49

b^2 = 576

b = sqrt(576)

b = 24

So because AB = 24, we know that the cosine of the angle is adjacent/hypotenuse = 24/25

---------------------------

As an alternative, you could use the trig identity

sin^2(x) + cos^2(x) = 1

and plug in the given value of sine to solve for cosine. The cosine value result will be positive since we're in Q4.

So,

sin^2(x) + cos^2(x) = 1

(-7/25)^2 + cos^2(x) = 1

(49/625) + cos^2(x) = 1

cos^2(x) = 1 - (49/625)

cos^2(x) = (625/625) - (49/625)

cos^2(x) = (625-49)/625

cos^2(x) = 576/625

cos(x) = sqrt(576/625)

cos(x) = sqrt(576)/sqrt(625)

cos(x) = 24/25

This is effectively a rephrasing of the previous section since the pythagorean trig identity is more or less the pythagorean theorem (just in a trig form)

6 0
3 years ago
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