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Usimov [2.4K]
2 years ago
5

Help me out please ;v;

Mathematics
1 answer:
Musya8 [376]2 years ago
3 0
First you rewrite all the expressions like this:
8x+4=(2x+12)+(2x+4)

then you solve and get:
x=3

to solve for AC, you have to solve 8x+4 by replacing x with 3

8x+4 would be rewritten as:
8(3)+4

AC=28
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X + 4 is prime x2 – 9 can be factored using the formula.
Anna71 [15]

We are given two binomials: x+4 , x^2-9.

x+4 can't be factored. Therefore,  it is a prime.

Let us work on x^2-9.

9 could be written as 3^2.

Therefore, x^2-9 = x^2 - 3^2.

Now, we can apply difference of the squares formula to factor it.

We know a^2 -b^2 = (a-b) (a+b).

Therefore,  x^2 - 3^2 can be factored as (x-3) (x+3).

So, x^2-9 is not a prime binomial because it can be factored as (x-3) (x+3).

3 0
3 years ago
Read 2 more answers
Find the values of x, y, and z.<br> X=?<br> Y=?<br> Z=?
astraxan [27]
I haven’t taken geometry in a couple years, so I hope this is right. I’m so sorry if it’s not!!

X= 91

Y= 62

Z= 45
4 0
2 years ago
Can somebody help me with this math question?
kap26 [50]

Answer:Hk and IJ

Step-by-step explanation:

They are parallel to eachother, hope this helped!

<!> Brainliest is appreciated! <!>

6 0
3 years ago
A club raised 175% of its goal for a charity. The club raises $875. What was the goal?
charle [14.2K]

Answer: The goal was $500

======================================================

Work Shown:

x% = x/100

175% = 175/100 = 1.75

Let g be the goal, which is the amount of money the club wanted to raise

175% of goal = 175% of g = 1.75g

The expression 1.75g represents how much money was actually raised, which was $875. Set the two expressions equal to each other. Solve for g

1.75g = 875

g = 875/1.75 ....... divide both sides by 1.75

g = 500

The club's goal was to raise $500

Note how 75% of $500 is 0.75*500 = 375

When they raised 175% of the goal, this means they went 75% overboard and added on 375 additional dollars (on top of the 500 they wanted). So they got to 500+375 = 875 which lines up with the instructions. This helps verify the answer.

Or we can see that 1.75*g = 1.75*500 = 875 which helps confirm the answer as well.

3 0
3 years ago
Please help! Brainliest to correct!
jekas [21]

Answer:

1.83 hours

Step-by-step explanation:

Time is inversely proportional to speed

Implies that T = k/R, where k is the constant of proportionality

Thus, the product T × R is a constant for any given valued of R,T.

Hence, 3 × 14 = t × 23

t = (3×14) ÷ 23

t = 1.83 hours

8 0
2 years ago
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