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3 years ago

14

Q# 7 please anybody help me

2 answers:

astra-53 [7]3 years ago

7 0

√42 is an irrational number, because you cannot express the answer as a fraction (ratio), and it certainly isn't a whole number or an integer.

alisha [4.7K]3 years ago

7 0

<h2><u>Answer</u></h2>

The answer is D: irrational number

<h2><u>Explanation</u></h2>

Rational numbers are numbers that ca be written as a fraction. that is in form of a/b.

√42 = 6.480740698.......

√42 can not be written in the form of a/b, neither is it a whole number. So √42 is not a rational number.

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Rewrite using the commutative property of multiplication.

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Rewrite using the commutative property of multiplication.

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Rewrite using the commutative property of multiplication.

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3a^2 − 3ab + 6ac + 2ba + 2 ⋅ −1b^2 + 2b (2c) − ca − c (−b) − c (2c)

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Rewrite using the commutative property of multiplication.

3a^2 − 3ab + 6ac + 2ba − 2b^2 + 2 ⋅ 2bc − ca − c (−b) − c (2c)

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Rewrite using the commutative property of multiplication.

3a^2 − 3ab + 6ac + 2ba − 2b^2 + 4bc − ca − 1 ⋅ −1cb − c (2c)

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6 0

3 years ago

Need help step by step

shusha [124]

Y = mx + b

8x - 4y - 9 = 0

first you move the nine to the other side of the equal sign (add nine to both sides)

8x - 4y = 9

then you need to also move your 8x over to the other side as well (remember we are trying to get y by itself!)

- 4y = -8x + 9

then we are going to divide -4 to both sides

and you get

y = 2x - 9/4

we can then identify the slope as 2

so B. 2 would be your answer

hope this helped

3 0

3 years ago