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Arisa [49]
3 years ago
5

Which expressions are completely factored?

Mathematics
1 answer:
kvv77 [185]3 years ago
6 0
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)
You might be interested in
4. The square root of 5 less than twice a number is 7. Find the number.
vladimir1956 [14]

Answer:

3.5

Step-by-step explanation:

we can divide that

  • the square root of 5
  • less than
  • twice a number is 7

as you see the first one is really easy

\sqrt{5}

the second one is < because it points to the lower number

the third one we have

twice a number is 7

let's say x is the number

so twice x is 7

twice means 2 times

so 2 times x is 7

2*x=7\\\\\frac{1}{2}*2x=\frac{1}{2}*7\\\\x=3.5

so the number is 3.5

5 0
3 years ago
Is (-3, 2) a solution of -4r - 10y&lt; - 9?
Blizzard [7]

Answer:

<em>The point (-3,2) is not a solution of the inequality</em>

Step-by-step explanation:

<u>Inequality</u>

Inequalities relate the left and the right side of an expression with an operator other than the equal sign.

The inequality given in the question is

-4r - 10y< - 9

There are many combinations of r and y that make inequality be true. For example, for r=1 and y=1

-4(1) - 10(1)< - 9

-14< - 9

This relation is true since -14 is less than -9.

Also, there are many combinations that make the given inequality be false.

For example, for r=2 and y=-1

-4(2) - 10(-1)< - 9

-8+10

2

This inequality is false.

Let's test the point (-3,2)

-4(-3) - 10(2)< - 9

12-10

2

Which is false, thus the point (-3,2) is not a solution of the inequality

3 0
3 years ago
Consider the triangle.
allochka39001 [22]

Answer:

angle B, angle A, angle C

Step-by-step explanation:

4 0
3 years ago
Dorji thought of a number. He first multiplied the number by 3 and then subtracted 12
jeyben [28]

Answer

The answer is 24

Step-by-step explanation

  • 24 x 3 = 72
  • 72 - 12 = 60
  • 60/6 = 10
  • 10 - 4 = 6
6 0
3 years ago
Help me plzz.....................
Ierofanga [76]
This is Transitive Property. 

Blame me if you get it wrong :\
6 0
3 years ago
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