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12345 [234]
2 years ago
12

Select all the correct answers.

Mathematics
1 answer:
joja [24]2 years ago
8 0

Answer:

<u>(x + 3)(x - 7)</u>

<u>(x + 1)(x - 2)</u>

Step-by-step explanation:

The general form of factored equations :

<u>y = (x + a)(x + b)</u> [it can be ±, so don't worry about that part]

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

Hence, the expressions which are in factored form :

⇒ <u>(x + 3)(x - 7)</u>

⇒ <u>(x + 1)(x - 2)</u>

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Find the solution of the system of equations.
avanturin [10]

Answer:

3

Step-by-step explanation:

The number is 3.

Step-by-step explanation:

Finding the Number

To find the number, we have to translate the problem above to an algebraic equation. The algebraic equation refers to the statement of the equality of two algebraic expressions.

Equation:

Let "x" be the number.

4 is divided by a number - 4/x

3 divided by the number decreased by 2 - 3/x-2

"4 is divided by a number is equal to 3 divided by the number decreased by 2"

4/x = 3/x-2

Solution:

Cross multiply.

4/x = 3/x-2

x(3) = 4(x-2)

3x = 4x - 8

(Combine similar terms.)

3x - 4x = - 8

- x = - 8

- x/- 1 = - 8/- 1

x = 8

Final Answer:

8

Checking:

4/x = 3/x-2

4/8 = 3/8-2

1/2 = 3/6

1/2 = 1/2 ✔

7 0
3 years ago
You are hanging 3 display shelves with the same width on a wall so that there is 18 inches of space above each shelf for placing
Kazeer [188]

Answer:

You need to have a minimum of 16 inches of clearance.

Step-by-step explanation:

4 0
3 years ago
HELP NO LINKS WILL GIVE BRAINLIEST IF YOU ARE CORRECT
Zielflug [23.3K]

Answer:

1: 208.8ft^3

2: $626.4

6 0
3 years ago
Read 2 more answers
Ann is using a recipe that serves 20 people. The recipe requires 1/2 of a cup of sugar. How many cups of sugar does Ann need to
nikitadnepr [17]

Answer:

Step-by-step explanation:

x/70=0.5/20

x=35/20

x=1.75

Ann will need 1.75 cups of sugar.

8 0
3 years ago
What is -x/3 = 9. Solve for x
vlada-n [284]

Note: I just noticed that you only have one negative sign. If you mean to put -9, change the sign to positive. If not, leave the answer.

Note the equal sign. what you do to one side, you do to the other. Isolate the x. First, multiply 3 to both sides

-x/3(3) = 9(3)

-x = 9(3)

-x = 27

Next, to isolate the x, divide -1 from both sides

-x/-1 = 27/-1

x = 27/-1

x = -27

-27 is your answer for x.

hope this helps

3 0
3 years ago
Read 2 more answers
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