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3 years ago

Help me this is my question:

Mathematics

1 answer:

creativ13 [48]3 years ago

8 0

Answer:

(.2)(15.75)=3.15

Step-by-step explanation:

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A textbook costs $58 and sells for $70. Find the rate of markup based on the selling price.

notka56 [123]

58r=70

r=35/29

r≈1.2069

So the rate was about 1.21 or if you prefer about 20.7%

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3 years ago

What is the volume of this object?

Nastasia [14]

Answer:

Step-by-step explanation:

(Assuming that each cube is 1 unit), the volume is 5 + 6 + 8 which equals 19

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2 years ago

Find the inverse of f(x) = 2x - 5. The 4 options are in the pic below. PLEASE HELP.

leva [86]

Answer:

The answer is B

Step-by-step explanation:

I hope this helped :)

3 0

3 years ago

Read 2 more answers

TRIGONOMETRY , can you solve this plz:(<br>even if you know one of them,plz help:)

daser333 [38]

Answer:

See below

Step-by-step explanation:

$\frac{1}{1-cos A} - \frac{1}{1+cos A} =2 cosec A cot A \\ \\ L. H. S.= \frac{1}{1-cos A} - \frac{1}{1+cos A} \\ \\ = \frac{1+cos A - (1 - cos A)}{(1-cos A)(1+cos A)}\\ \\ = \frac{1+cos A - 1 + cos A}{1-cos^{2} A}\\ \\ = \frac{2cos A }{sin^{2} A}\\ \\ =2 .\frac{1}{sin A}.\frac{cos A }{sin A}.\\ \\ = 2.cosec \: A.cot \: A \\ \\ = R.H.S$

5 0

3 years ago

In 2000, U.S. trade with Saudi Arabia totaled $20.6 billion. Of this total,

xxMikexx [17]

Answer:

30.1%

Step-by-step explanation:

Find the percent that was US exports by dividing 6.2 by 20.6, then multiplying it by 100

(6.2/20.6) x 100

= approximately 30.1

So, approximately 30.1% of the trade was US exports

8 0

3 years ago