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2 years ago

. Which could be a value for n?

Mathematics

1 answer:

snow_lady [41]2 years ago

7 0

Answer:

A. $-\frac{1}{2}$

Step-by-step explanation:

Each mark represent 0.1 unit, so if you count from 0 to $n$ you get 0.5 that is exactly the same that $-\frac{1}{2}$ (for convention the left of the 0 is taken as negative and the right as positive).

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Which pair shows equivalent expressions?

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2 years ago

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goldenfox [79]

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3 years ago

Round your answer to the nearest hundredth.

netineya [11]

Answer:

200 rounded to the nearest hundredth

Step-by-step explanation:

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3 years ago

How can you tell if 2 figures are similar

S_A_V [24]

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3 years ago

2/(a-7)(a+2)=4/(a+3)(a+2)

pochemuha

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$\frac{2}{(a^{2} + 2a - 7a - 14)} = \frac{4}{(a^{2} + 2a + 3a + 6)}$

$\frac{2}{a^{2} - 5a - 14} = \frac{4}{a^{2} + 5a + 6}$

$2(a^{2} + 5a + 6) = 4(a^{2} - 5a - 14)$
$2(a^{2}) + 2(5a) + 2(6) = 4(a^{2}) - 4(5a) - 4(14)$
$2a^{2} + 10a + 12 = 4a^{2} - 20a - 56$
$2a^{2} - 2a^{2} + 10a + 12 = 4a^{2} - 2a^{2} - 20a - 56$
$10a + 20a + 12 = 2a^{2} - 20a + 20a - 56$
$30a + 12 + 56= 2a^{2} - 56 + 56$
$\frac{30a + 68}{2} = \frac{2a^{2}}{2}$
$15a + 34 = a^{2}$
$\sqrt{15a + 34} = a$

6 0

3 years ago