3 years ago

Can someone help me please on number 5

Mathematics

1 answer:

Kamila [148]3 years ago

8 0

Answer:

Hank earns $180

Step-by-step explanation:

If you multiply $12 × 15 you will get $180

You might be interested in

Mark is gluing a ribbon around the sides of a picture frame. The frame is 11 inches long and 7 inches wide. How much ribbon does

zalisa [80]

You are looking for the perimeter, so you need to add 11+11+7+7. That equals 36.

8 0

3 years ago

Read 2 more answers

What is the measure of angle y in this figure?

mihalych1998 [28]

It is 163 degrees, because both angles are facing each other

5 0

2 years ago

Evan makes $2,800 a month and has $750 with held as federal income tax. How much does Evan pay for medicare which is 1.45% of hi

OLga [1]

The answer is 3498.525

4 0

3 years ago

Read 2 more answers

I'm stuck with these questions.

Pepsi [2]

Remember to use King Henry Died By Drinking Chocolate Milk

7 0

3 years ago

Read 2 more answers

A sheet of metal that is 30cm wide and 600cm long is to used to make a rectangular eavestrough by bending the shett an equal amo

tensa zangetsu [6.8K]

Answer:

The sheet should be turned up 7.5cm on each side to obtain maximum volume.

Step-by-step explanation:

If we make a rectangular eavesdrop, by bending the sheet along dotted line, then.

Height of eaves trough = x cm

Length of eaves trough = 600 cm

Width of eaves trough = (30 - 2x) cm

We know that Volume is given by:

V = Length · Width · Height

V = (x)(30 - 2x)(600)

V = -1200x² + 18000x

To maximize the volume, we take the derivative and put it equal to zero.

$\frac{dV}{dx} =\frac{d}{dx}( -1200x^2 +18000x)=0\\\frac{d}{dx}( -1200x^2 +18000x) = 0\\-(2)1200x+18000=0\\-2400x+18000=0\\x=\frac{18000}{2400}\\ x=7.5cm$

8 0

3 years ago