4 years ago

Why can i not combine the -12 and 3?

Mathematics

1 answer:

lidiya [134]4 years ago

8 0

12 is a negative you cannot combine opposites

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Help me please urgent

asambeis [7]

$Let \: x \: be \: the \: number \: of \: hours \\ Expession: - 4.5x = - 27\Leftrightarrow x = \frac{ - 27}{ - 4.5} = 6 \: hours$

7 0

3 years ago

Which expression is equivalent to (8^2)^-4

xz_007 [3.2K]

Answer:

C: $\frac{1}{8*8*8*8*8*8*8*8}$

Step-by-step explanation:

$a^{-n} = \frac{1}{a^n}$

Since a = $8^2$ :

$(8^2)^{-n} = \frac{1}{(8^2)^n} =\frac{1}{8^{2n}}$

Since n = 4 :

$(8^2)^{-4} =\frac{1}{8^{2*4}}=\frac{1}{8^{8}}=\frac{1}{8*8*8*8*8*8*8*8}$

6 0

3 years ago

Tony has 6 dollars in change in his car. Every time he drives to visit his grandma, he pays $1.25 in tolls. Which graph represen

topjm [15]

Here is your answer:

Your answers Graph A.

Reason: That's because the given line starts on the quarter by 1 which equals .25 and goes up to 6.

You're answer is A.

8 0

4 years ago

Read 2 more answers

A line parallel to one side of a triangle divides the other two sides proportionally true or false?

Stella [2.4K]

Answer:

true

Step-by-step explanation:

Triangle Proportionality Theorem - 'If a line is parallel to one side of a triangle and intersects the other two sides, then it divides the other two sides proportionally'. Hence, the given statement is true

8 0

3 years ago

Is 7.5 greater or less than 48.75?

fomenos

Answer:

Less than

Step-by-step explanation:

7.5 < 48.75

48.75 is a bigger number than 7.5

Therefore, 7.5 is less than it.

7 0

4 years ago

Read 2 more answers