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Lorico [155]
3 years ago
13

Simplify -(-2a + 13) + (-9a - 2) - (-7a - 3)

Mathematics
2 answers:
nadya68 [22]3 years ago
5 0
-12 hope it helps :)
Diano4ka-milaya [45]3 years ago
4 0

Answer: the correct answer is -12

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kap26 [50]

Answer:

There is only one number from 21-25

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3 years ago
A highway engineer specifies that a certain section of roadway covering a horizontal distance of 2km should have a downgrade of
Zigmanuir [339]

Answer:

0.16km

Step-by-step explanation:

A highway engineer wants to compute  the change in elevation of a section of road. The horizontal distance of this section of road is 2km and downgrade is 8%

The slope formula is given by

m=\frac{rise}{run}=\frac{x}{y}

m = 8% = 8/100

run = y = 2km

m =\frac{x}{y}

\frac{8}{100} =\frac{x}{2}

\frac{2*8}{100} =x

x=\frac{16}{100} =0.16km

Verification:

m=\frac{0.16}{2}= 0.08=8%%

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If it's congruent and similar
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Step-by-step explanation:

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What product is shown by the model?​
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