MATHEMATICS HIGH SCHOOL

Which expressions are completely factored?Choose all answers that are correct.

Question 4 options:

18x^4 – 12x^2 = 6x(3x^3 – 2x)


12x^5 + 8x^3 = 2x^3(6x^2 + 4)


20x^3 + 12x^2 = 4x^2(5x + 3)


24x^6 – 18x^5 = 6x^5(4x – 3)

Answers

Answer 1
Answer: Hello

1)False 18x^4-12x²=6x(3x^3-2x)=6x²(3x²-2)

2) False 12x^5+8x^3=2x^3(6x²+4)=4x^3(3x²+2)

3)True 20x^3+12x²=4x²(5x+3)

4)True 24x^6-18x^5=6x^5(4x-3)

4)

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4x+6 is greater than or equal to 18
find the solution

Answers

Answer:

4x+6 ≥ 18

Step-by-step explanation:

x≥3

Find the value of 42 + 6 ÷ 2.

Answers

If you do order of operations, you divide 6 and 2 getting 3. Add 42 and 3. 45 is the answer.

Answer: the answer is 7

Which choice is equivalent to the expression below?6√7 - 5X√7 - X√7

A.-2√7
B. 0
C.-X^2
D.6V7-6X√7

Answers

6\sqrt7-5x\sqrt7-x\sqrt7=6\sqrt7-6x\sqrt7\n\nAnswer:D.
6\sqrt7 - 5x\sqrt7 - x\sqrt7=\n 6\sqrt7-6x\sqrt7 \Rightarrow D

Can someone please help me with this quick question

Answers

Y axis because the y value did not change

Charlie solved an equation, as shown below:Step 1: 5x = 30

Step 2: x = 30 - 5

Step 3: x = 25

Is Charlie's solution correct or incorrect? If the solution is incorrect, explain why it is incorrect and show the correct steps to solve the equation.

Answers

Charlie is incorrect because he should have divided the 5. So it would x=30/5 =6. to check your work go 6x5 which equals 30.

How many different ways can a director select 4 actors from a group of 20 actors?

Answers

Number of ways = 20C4
Number of ways =  (20 x 19 x 18 x 17) ÷ (4 x 3 x 2 x 1)
Number of ways =  116280  ÷ 24 
Number of ways =  4845.

Answer: 4845
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