O points

Mathematics

1 answer:

Ksenya-84 [330]2 years ago

5 0

Step-by-step explanation:

Notice that 15 squared = (3 * 5)^2 = 9 * 25 = 225.

So the area of the cornfield can be 225 square acres.

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Samantha threw an apple out of a window from the tenth floor of her apartment building.The equation y=-16t^2+120 can be used to

Savatey [412]

If the apple is on the ground, then the height y is 0. To find t, just plug in 0 for y:
$0=-16t^{2}+120$
$-120=-16t^{2}$
$t^{2} =7.5$
$t=2.74$

So the answer is 2.74 seconds.

Note that taking the square root of 7.5, mathematically, gives you both 2.74 and -2.74. But because we know that time did not go backwards, only the positive value for t was considered.

5 0

3 years ago

Read 2 more answers

HURRY NEED HELP NOW 42 POINTS NEED 1 PARAGRAPH FOR EACH QUESTION there are 2 photos I put up and that where the questions are.

Shtirlitz [24]

1. All you have to do to find the area of the figure. IS first find the area of the rectangle. This is easy because all you have to do is base times height.

22 x 17 = 374

Now to find the area of the triangle all you have to do is do base times height like a rectangle, but then divide it by 2 afterwords.
19 x 12 = 228 ÷ 2 = 114.

Now add the two area's together:

374 + 114 = 488.

Just do the same with the one below, I've altered the pic a bit to make it easier.