3 years ago

I need help with these problems

Mathematics

1 answer:

ExtremeBDS [4]3 years ago

5 0

In my opinion I would pick the top for both answers

You might be interested in

A jewelry box is in the shape of a rectangular prism with an area of 528 cubic inches. The length of the box is 12 inches and th

Olin [163]

The height is 8 i believe

6 0

3 years ago

A car is driven on a straight track such that its displacement from the starting point is given as x = t + 2t2. What is the aver

romanna [79]

Average rate of change = (x(4) - x(2))/(4 - 2) = ((4 + 2(4)^2) - (2 + 2(2)^2))/2 = ((4 + 2(16)) - (2 + 2(4)))/2 = ((4 + 32) - (2 + 8))/2 = (36 - 10)/2 = 26/2 = 13.

Therefore, average velocity is 13 m/s

7 0

3 years ago

What is the exact value of the expression the square root of 20. + the square root of 24. - the square root 54.? simplify if pos

aksik [14]

$\sqrt{20} = \sqrt{4} \sqrt{5} = 2 \sqrt{5}$
$\sqrt{24} = \sqrt{4} \sqrt{6} = 2 \sqrt{6}$
$\sqrt{54} = \sqrt{9} \sqrt{6} = 3 \sqrt{6}$

Because you can only add and subtract radicals with the same radicand,
you get 2 $\sqrt{5} - \sqrt{6}$
that is the simplified answer but if you want it in decimals, 2.022 is what you get.

4 0

3 years ago

Read 2 more answers

At a hardware store, each wooden plank costs $3.57. How much do 12 planks cost?

777dan777 [17]