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irga5000 [103]
3 years ago
6

Simplify the expression below. 6n2 - 5n2 + 7n2

Mathematics
2 answers:
zavuch27 [327]3 years ago
3 0
The answer to the question is
18n^2

Nookie1986 [14]3 years ago
3 0
The answer is 8n^2. You just simplify the expression.
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Suppose there is a 1.2 Fahrenheit drop in temperature for every thousand feet that an airplane climbs into the sky if the temper
Nostrana [21]

9514 1404 393

Answer:

  58.7 °F

Step-by-step explanation:

At 5000 feet, the airplane is 5 times 1000 feet above the ground, so the temperature will have dropped 5 times 1.2 °F.

  64.7 - 5×1.2 = 64.7 -6.0 = 58.7

At 5000 feet, the temperature is 58.7 °F.

3 0
3 years ago
Mathilda has 20 pints of green paint. She uses 2/5 of it to paint a landscape and 3/10 of it while painting a clover. She decide
sleet_krkn [62]
2/5 of 20 = 8. 

3/10 of 20= 6. 

8+6=14. So 20-14= 6

She needs 14 pints, so you subtract 6 from that. Your final answer should be 8 pints. 
7 0
3 years ago
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Please help me out !! ( I will mark brainliest)
lisov135 [29]

Question 1: The y-intercept is where the line crosses the y-axis. The increments of the y-axis is by 20, and the y-intercept is at (0, 20).

The slope is the change in y over the change in x. Find two points:

(0, 20) and (2, 80)

Now:

(80 - 20)/(2 - 0) = 60/2 = 30

Slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

So:

y = 30x + 20

Question 2: Again, look for the y-intercept, which is pretty clear. It's (0, 60).

Now find two points:

(0, 60) and (2, 40)

Find the slope:

(40 - 60)/(2 - 0) = -20/2 = -10

So, the equation is:

y = -10x + 60

And, there you go!

3 0
3 years ago
Round 475,805 to the nearest ten thousand.
Gnom [1K]

475,805 rounded to the nearest ten thousand would be 476,000.

8 0
3 years ago
I NEED HELP PLEASE HURRY Type the correct answer in the box. Use numerals instead of words. If necessary use / for the fraction
mart [117]
(y+1), since 5y2-2y-7=(5y-7)(y+1)
3 0
3 years ago
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