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2 years ago

Plz really ned help on this really easy!! simplify: 4(5x + 12) Thank you all in advance!!!

Mathematics

1 answer:

Katarina [22]2 years ago

4 0

4(5x + 12) simplified = 20x + 48

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Help please! the question is in the picture below for reference when answering! thank you so much!

stepan [7]

Answer:

x = -1

Step-by-step explanation:

AB + BC = AC = 28

the way from A to C goes through B.

so, the total way of A to C is the sum of the way from A to B and then from B to C.

(5x + 10) + (2x + 25) = 28

7x + 35 = 28

7x = -7

x = -1

4 0

2 years ago

Read 2 more answers

1) Solve the following system of equations algebraically. Give your solution as two

Bad White [126]

For this case we have the following system of equations:

$y = x ^ 2 + 7x + 12\\y = 2x + 8$

Equating both equations we have:

$x ^ 2 + 7x + 12 = 2x + 8\\x ^ 2 + 7x-2x + 12-8 = 0\\x ^ 2 + 5x + 4 = 0$

We must find the solutions, for this we factor. We look for two numbers that, when multiplied, result in 4 and when added, result in 5. These numbers are 4 and 1:

$4 + 1 = 5\\4 * 1 = 4$

Then, the factorized equation is of the form:

$(x + 4) (x + 1) = 0$

Thus, the solutions are:

$x_ {1} = - 4\\x_ {2} = - 1$

We look for solutions for the variable "y":

$y_ {1} = 2 (-4) + 8 = -8 + 8 = 0\\y_ {2} = 2 (-1) + 8 = -2 + 8 = 6$

Thus, the system solutions are given by: $(x_ {1}, y_ {1}): (- 4,0)\\(x_ {2}, y_ {2}): (- 1,6)$

ANswer:

$(x_ {1}, y_ {1}): (- 4,0)\\(x_ {2}, y_ {2}): (- 1,6)$

8 0

3 years ago

How much interest would be paid on $75 at 5% interest rate for 2 years??

V125BC [204]

Answer:

Step-by-step explanation:

Step one: because fractions are out of 100% you do

5%+100%= 105

105 divide by 100 which is equal to 1.05

Step two: it’s says two year so what you do is times the amount by the number you got

75x $1.05{2}$

=82.68 answer

4 0

3 years ago

What is the total area of the prism?

Pavlova-9 [17]

First we look for the area of the triangle which is given by:
A = (1/2) * (4) * (6)
A = 12 feet ^ 2
Area of the rectangles:
Rectangle 1:
R1 = (4) * (8)
R1 = 32 feet ^ 2
Rectangle 2:
R2 = (6) * (8)
R2 = 48 feet ^ 2
Rectangle 3:
R3 = (root (6 ^ 2 + 4 ^ 2)) * (8))
R3 = 57,68882041 feet ^ 2
The total area will be:
A = 2A + R1 + R2 + R3
Substituting values:
A = 2 * (12) + 32 + 48 + 57,68882041
A = 161.6888204 feet ^ 2
Answer:
The total area of the prism is:
A = 161.6888204 feet ^ 2

6 0

2 years ago

Write 3 numbers less than 50 that have exactly 3 factors

tino4ka555 [31]

Answer:

10,20,40

Step-by-step explanation:

They all have a factor of 2,10, and 1

6 0

3 years ago