Help? quadratic functions

Mathematics

1 answer:

Masteriza [31]3 years ago

6 0

Quadratic functions are squared so every equation that has been squared is a correct answer.

You might be interested in

My dog has a friend but two more friends come.How much friends does my dog have

tekilochka [14]

Your dog had 3 buddies.

5 0

3 years ago

Read 2 more answers

Maria has $1.25 in nickels and dimes. She has a total of 16 coins. How many of each coin does he have?

Flauer [41]

Q=quarters, d=dimes

q+d=8
.25q+.1d=1.25

Let's set the first equation to equal d.

d=8-q

.25q+.1(8-q)=1.25

Distribute.

.25q+.8-.1q=1.25

Combine Like Terms

.15q+.8=1.25

Subtract .8

.15q=.45

Divide by .15

q=3

Now, let's solve for d in the first equation.

d+3=8

Subtract 3, and you get d=5

So, there are 5 dimes and 3 quarters in Maribel's pocket.

Check: .25(3)+.1(5)=1.25

.75+.5=1.25
1.25=1.25 which is true.

7 0

2 years ago

A cylindrical tank has a diameter of 2.5 feet and a height of 4.8 feet. what is the lateral surface area of the tank to the near

blsea [12.9K]

Answer:

This is approximately $37.7 ft^{2}$ to the nearest hundredth

Step-by-step explanation:

First of all, we will need to understand that to find the lateral surface area of the cylinder, we simply need to multiply the circumference of the circular base by the height of the cylinder.

In this case, the circumference of the circular base can be obtained by the formula

$2 \pi r$