The answer is: " 9a² + 7a " .
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Note: (3a)² + 7a = (3a)*(3a) + 7a = 9a² + 7a .
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3 0

2 years ago

There are 3,280.84 feet in a kilometer. There are 5,280 feet in a mile. To the nearest hundredth, how many kilometers are in a m

just olya [345]

Answer:

1.609344 kilometers

Step-by-step explanation:

8 0

2 years ago

of the computer games lynn has 5/12 are sports games and 3/12 are educational what fraction of the games are either sports or ed

nikklg [1K]

5/12 + 3/12 = 8/12

8/12 of the games are either sports or educational.

7 0

2 years ago

I dont understand the problem

Roman55 [17]

Answer:

equation of a line:

y = mx+c

1) find the gradient, m

$m = \frac{y2 - y1}{x2 - x1}$

$m = \frac{ - 4 - ( - 4)}{ - 10 - 1}$

$m = 0$

2) find y-intercept, c using coordinate (1,-4)

y = mx + c

-4 = 0(1) + c

c = -4

the equation of line:

y = mx+c

y = 0(x) + c

y = c

y = -4

6 0

2 years ago