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Masteriza [31]
2 years ago
13

Find the sum: (3x2 + 5x − 8) + (5x2 − 13x − 5)

Mathematics
2 answers:
Neko [114]2 years ago
7 0
(3x² + 5x - 8) + (5x² - 13x - 5)

group like terms

3x² + 5x² + 5x - 13x - 8 - 5

8x² - 8x - 13
sergejj [24]2 years ago
4 0
I showed my work too. hopefully this helps

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Can someone help explain this to me?​
o-na [289]

Step-by-step explanation:

A. y-5=-4x+4

y=-4x+4+5

y= -4x +9

(0,9)(9/4,0)

8 0
2 years ago
1/2 + n = 0, 2/3 + n = 0 And explain
Zepler [3.9K]
So we can subsitute since they all equatl zero
1/2+n=0=2/3+n
1/2+n=2/3+n
subtract n from both sides
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false statement
therefor there is no solution
4 0
3 years ago
The measurement of the supplement of an angle is 7 times the measure of the complement. find the measure of the complement
mamaluj [8]
<span>x = angle 90 - x = measure of complement of x 180 - x = measure of supplement of x From the information given in the problem, we get this: 180 - x = 7 (90 - x) 180 - x = 630 - 7x -x + 7x = 630 - 180 6x = 450 x = 450/6 x = 75. Now we prove that x = 75° is the correct angle: x = 75° = measure of angle 90° - 75° = 15° = meaure of complement 180° - 75° = 105° = 7 (15°)</span>
4 0
3 years ago
Read 2 more answers
How many square inches are in 60 square feet
jasenka [17]
<h2>Answer</h2>

8640 square inches

<h2>Explanation</h2>

To solve this, we are going to take advantage of the fact that 1 square foot is equal to 144 square inches so we can create a suitable conversion fraction.

Since we want to convert from square feet from inches, the denominator of our conversion fraction will be square feet so we can cancel those out and get the result in square inches:

60square.feet*\frac{1144square.inches}{1square.fett} =60*144square.inches=8640square.inches

There are 8640 square inches in 60 square feet

5 0
3 years ago
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aliina [53]

Answer:

17/20

Step-by-step explanation:

3/5+1/4=12/20+5/20 (you want to find a common denominater, so its easier to add up.)

12/20+5/20=17/20, so Carla has finished washing 17/20 of her laundry.

3 0
2 years ago
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