All categories

3 years ago

What is the solution set of 4x^2 - 36 = 0?

2 answers:

6 0

<span>4x^2 - 36 = 0 ( Original equation )

4x^2 = 36 ( Add 36 to both sides )

x^2 = 9 ( Divide by 4 on both sides )

x = 3 , -3 ( Take the square root of 9 )

Solution set: { +3 , -3 } answer is x = +3 , x = -3</span>

gizmo_the_mogwai [7]3 years ago

4 0

Add 36 to both sides and divide by 4
and take its square root the answer is = 3

You might be interested in

Last year Billy weighed 75kg. This year he weighed 90kg. With what percentage did his weight increase. SHOW ALL WORK!!!

polet [3.4K]

well let's round. 90= 100, 75=80 that is how I face it. now 80 is 1/5 of 5/5= 100. so as a (%) we would sort it like:::: it is 80% out of +100 so he must have grown around 13%-16% due to him being 75kg in the past.

5 0

3 years ago

Ashton bought 5 cans of olive oil. Each can had a radius of 3.2 inches and was 15 inches tall. Find the total cubic inches of ol

amid [387]

Step-by-step explanation:

A can is a cylinder.

Volume of a can = Volume of Cylinder

$= \pi {r}^{2} h$

Given Radius = 3.2 inches and height = 15 inches,

Volume of one olive oil can =

$\pi( {3.2}^{2} )(15) \\ = 153.6\pi {in}^{3}$

Volume of 5 olive oil cans = 5 x volume of one olive can

$= 5 \times 153.6\pi \\ = 768\pi {in}^{3}$

I will just leave the answer in terms of pi as I'm not sure if you need to round off your answers.

5 0

3 years ago

What is the coefficient of the c-term of the algebraic expression 14a -72r -c -34d?

8_murik_8 [283]

The coefficient C-term is 1 in problem. The coefficient is the number before the variable of said equation. Example, the coefficient of X for thus problem 4x-4y is 4 the number BEFORE the variable, never variable itself it won’t ever be 4x

3 0

3 years ago

Solve the reciprocal<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7Bx%7D%20" id="TexFormula1" title=" \frac{1}{x} " al

swat32

Answer:

the reciprocal is just x because x over 1 is just x

Step-by-step explanation:

Hope this helps! :)

7 0

2 years ago

two glasses of milk and 3 snack bars have a total of 78 carbohydrates (carbs), and 4 glasses of milk and 3 snack bars have a to

padilas [110]

Answer:

Each glass of milk is 9 carbs.

Each snack bar is 19.7 carbs.

Step-by-step explanation:

1. I know that 2 glasses of milk with 3 snack bars is 78 carbs.

The next part of the sentence has two times the amount of milk with the same amount of snack bars for 96 carbs.

Now, I will find the difference in the amount of carbs.

96 - 78 = 18 carbs.

So two glasses of milk = 18 carbs.

18 ÷ 2 = 9 carbs

So, each glass of milk is 9 carbs.

2. Since we know this, we can subtract the amount of carbs from the glasses of milk from the total amount of carbs.

78 - 19 = 59

In the first scenario, there are 59 carbs per 3 snack bars.

To find the amount of each snack bar, divide 59 by 3.

59 ÷ 3 = 19.7 when rounded to the nearest tenth.

Therefore, each snack bar is 19.7 carbs.

3 0

2 years ago

Read 2 more answers