2 years ago

Why you find 39 when you estimate difference 206and 167 Thinks

Mathematics

1 answer:

Mama L [17]2 years ago

7 0

You get 39 as an answer because you're taking 209 minus 167 and 39 is the answer that you get.

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Derive this identity from the sum and difference formulas for cosine:

DiKsa [7]

Step-by-step explanation:

½ [cos(a − b) − cos(a + b)]

Using sum and difference formulas:

½ [cos a cos b + sin a sin b − (cos a cos b − sin a sin b)]

Distribute the negative:

½ (cos a cos b + sin a sin b − cos a cos b + sin a sin b)

Combine like terms:

½ (2 sin a sin b)

Simplify:

sin a sin b

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2 years ago

Rebekah bought g gallons of paint for $12.85 per gallon and b brushes for $4.79 each. Which expression can be used to determine

lesya [120]

Answer:

g12. 85 + b4. 79

Step-by-step explanation:

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2 years ago

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Mark earns $135 for selling a $1,500 refrigerator. Which sale listed has the same commission rate? A) $36 commission on a $400 d

sdas [7]

So the percentage Mark makes comparative to the price of the refrigerator sold is $\frac{135}{1500}=0.09=$ 9%. If we take 9% of the given sale prices:
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C: $0.09*1400=126$
D: $0.09*600=54$

So (A) has the same commission rate.

4 0

2 years ago

PLS HELP!!!!!!!!!!!!!!!!!!!!

docker41 [41]

Answer:

y = 2x

Step-by-step explanation:

plug in the x number of scooters to get cost y

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hope this helps :)

6 0

2 years ago