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rewona [7]
3 years ago
7

−(−49) = −49 true or false?

Mathematics
1 answer:
Alex787 [66]3 years ago
5 0
False.

Whenever you see a negative sign next to another negative sign, you will always get a positive. So -(-49) is equal to +49
With that information we can determine that it is not equal to negative 49.
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Simplify: –4(x – 6) + 3(a – 7)
Korolek [52]

Answer:

D

Step-by-step explanation:

Given

- 4(x - 6) + 3(a - 7)

distribute the first parenthesis by - 4 and the second by 3

= - 4x + 24 + 3a - 21

= - 4x + 3a + 3 → D

4 0
3 years ago
Read 2 more answers
You are planning on using circles to compare the populations of California 37,691,000, Texas 25,675,000, and New York 19,465,000
Alina [70]
\bf \begin{array}{ccllll}
population&radius\\
-----&-----\\
19465000&5\\
25675000&t
\end{array}\implies \cfrac{19465000}{25675000}=\cfrac{5}{t}\impliedby texas
\\\\\\
\begin{array}{ccllll}
population&radius\\
-----&-----\\
19465000&5\\
37691000&c
\end{array}\implies \cfrac{19465000}{37691000}=\cfrac{5}{c}\impliedby california

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3 0
3 years ago
Express each ratio as a unit rate.round to the bearest tenth,if necessary. 2 note books for $0.60
FrozenT [24]

Option B

2 notebooks for $ 0.60 expressed as unit rate is $ 0.30 per notebook

<h3><u>Solution:</u></h3>

We have to express ratio as unit rate

Given that, 2 notebooks for $ 0.60

Number of notebooks = 2

Cost of 2 notebooks = $ 0.60

So we have to find cost of 1 notebook

\begin{array}{l}{\text { cost of } 1 \text { notebook }=\frac{\text { cost of } 2 \text { notebook }}{2}} \\\\ {\text { cost of } 1 \text { notebook }=\frac{0.60}{2}=0.30}\end{array}

So unit rate = cost of 1 notebook = $ 0.30

So 2 notebooks for $ 0.60 as unit rate is $ 0.30 per notebook

6 0
3 years ago
Read 2 more answers
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kumpel [21]

Answer: 50

Step-by-step explanation: 12 1/2 times 4 is 50

6 0
3 years ago
Determine which relation is a function.
lys-0071 [83]
You know if something is a function or not because the X will never be used twice in a set. If it is, then it's not a function.
A. Uses -1 twice
B. Uses Nothing twice (good)
C. Uses 0 twice
D. Uses 0 twice
B is your answer


5 0
3 years ago
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