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timurjin [86]
3 years ago
11

How do I simply these in easy simple terms please I’m very tired

Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
5 0

Answer:

combine like terms

Step-by-step explanation:

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You have a grade of 85 & 90
faltersainse [42]

Answer:

You need to get a 95 on the next test to have a 90 grade average.

Step-by-step explanation:

(85 + 90 + n)/3 = 90

<u>Step 1:  Multiply both sides by 3</u>

(85 + 90 + n)/3 * 3 = 90 * 3

85 + 90 + n = 270

<u>Step 2:  Subtract 85 from both sides</u>

85 + 90 + n - 85 = 270 - 85

90 + n - 90 = 185 - 90

n = 95

Answer:  You need to get a 95 on the next test to have a 90 grade average.

7 0
3 years ago
Read 2 more answers
Determine whether the polynomial is a difference of squares and if it is, factor it.
GREYUIT [131]
Remember these three formulas (really, learn these by heart):

{(a + b)}^{2}  =  a^{2} + 2ab +  b^{2}

{(a - b)}^{2} = a^{2} - 2ab + b^{2}

(a + b)(a - b) = a^{2} - b^{2}

The stated formula is a manifestation of the last of these three. So indeed,

(y + 15)(y - 15) = y^{2} - 225



8 0
3 years ago
HELPP PLZ DONT SEND A FILE WHATS THE ANWERS ASAP
Mariana [72]

The answer is 2990.8 yd

Formula for SA of cylinder: 2*pi*r*h+2*pi*r^2

Formula for radius: diameter/2

Plug the radius, 17, height, 11, and pi, 3.14, into the formula above.

= 2990.8 yd

4 0
3 years ago
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A countertop is in the shape of a trapezoid. The lengths of the bases are 70.5 and 65.5 inches long. The area of the countertop
const2013 [10]

Answer:

18.

Step-by-step explanation:

We know that the formula to find the height of a trapezoid is: ((a+b)/2)*h.

Using this, we'll get: 18, which is your answer. You can plug in the numbers if you want to confirm this.

Please give brainliest, thank you :)

3 0
2 years ago
2(x + 1 ) - 3(x + 5) ≥ 0
zaharov [31]

answer is x is less than or equal to -13

hope this helps:-)

3 0
3 years ago
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