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Harman [31]
2 years ago
12

Simplify by combining like terms.1. -5a - 4a + b​

Mathematics
1 answer:
Bess [88]2 years ago
3 0
-9a+b final answer to it
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Factorise completely 3m^2-48​
Helen [10]

Answer:

3 (m^2 - 16)

Step-by-step explanation:

factoring means taking out a common multiple of all the terms in the expression

in this case, if you multiply 3 and m^2, 3 and -16, you would get 3m^2-48​

so you take the three and put it outside of the parenthesis that contains the factored terms

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3 0
2 years ago
Javier drove 45 miles. This represent 60% of his entire trip. What is the total number of miles in Javier’s trip
Andrews [41]
60% of trip = 45 miles

let total trip distance = l

60% is given by multiplying by 0.6

So;

0.6l = 45 \\ \\ l = \frac{45}{0.6} \\ \\ \boxed{l = 75}

Your answer is 75 miles
8 0
3 years ago
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balu736 [363]

Answer:

4. sin 40= 0.7451131604793488384

5. cos 40= -0.666938061652261888

6. tan 50= -0.2719006119976306688

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8. sin A= -0.5882162892399388672

9. cos A= -0.8087036521945458688

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4 0
3 years ago
What is a correct name for the angle shown?ROZROLSO ZRTSOZSRTST
Shalnov [3]

Given: Different points and an angles as found in the image

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Let us apply the above to the given image

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Hence, the correct name of the angle shown is ∠

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