Please help I need help

Mathematics

1 answer:

qaws [65]3 years ago

3 0

The first answer of part A is 32

So 4y means you have to multiply 4 by y, which is 20 since 4x5=20

And then you add 12, which is 32.

The second answer to part A is 40

With the second question of part a, the expression is basically saying 4 times whatever 5+3 is. So 5+3= 8, and 4(8) is 40

For part B, they are equivalent because let’s pretend y=2. 12+4y= 20. And then 4(y+3) would equal 20 because 4(2)=8 and 4(3)=12 and 8+12=20. This might not be the answer that your teacher is looking for, but it’s still a right answer so technically they can’t say it’s wrong unless you have a super unfair teacher

You might be interested in

You throw a softball into the air with an initial upward velocity of 38 ft/s and an initial height of 5 feet. Use the vertical m

ddd [48]

I’m so sorry I need points but I’m gonna manifest that someone smarter will see this and answer

7 0

3 years ago

Find the surface area of the cylinder

STatiana [176]

<h2>Solution:-</h2>

• Surface area of a cylinder = 2πr(r + h) sq. units.

In the above diagram,

Radius (r) of the cylinder = 13 cm.