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4 years ago

A plumber charges $90 per hour and a $50 travel fee.

2 answers:

8 0

Okay so subtract 50 from both sides and you would get 360=90x and then divide each side by 90 and you would get x= 4 so it took 4 hours

pav-90 [236]4 years ago

6 0

Answer:

X=4

Step-by-step explanation:

90 x 4 = 360

360+50=410

hope this helps:)

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Over a 5-year period.

kaheart [24]

Answer:

Year 0 900$

Year 1 1000$

year 2 1080$

Year 3 61040$- (interest comes in)

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Year 5 152000$

Step-by-step explanation:

Make sure you put that interest comes in or you will be marked wrong.

You're welcome :D GoodLuck have a good day

7 0

3 years ago

Which one of the following functions is equivalent to sin (-35º)? A. sin 35º B. -sin 35º C. -sin 55º D. sin 55º

sasho [114]

Sin(-x) is equal to - sin(x)

Therefore, sin(-35) = -sin 35

Your answer is B.

3 0

4 years ago

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When a 3-digit number is rounded to the nearest ten, the sum of its digits is 16. The hundreds digit of this number is 8 and the

Elan Coil [88]

answer=

no.=875

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6 0

3 years ago

Pls someone help me or i’ll faint

never [62]

Answer:
a) DF = 20

b) DF =
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5 0

3 years ago

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If cos A = 3 over 11, then which of the following is correct?

ziro4ka [17]

Answer: The answer is (a) sec A = 11 over 3.

Step-by-step explanation: Given that Cosine of an angle 'A' is 3 over 11,

i.e.,

$\cos A=\dfrac{3}{11}.$

And we need to find which one of the given four options is correct.

We have the following relations between cosine, secant and cosecant of an angle from trigonometry.

$\sec A=\dfrac{1}{\cos A}~~\textup{and}~~\csc A=\dfrac{1}{\sqrt{1-\cos^2 A}}.$

Therefore,

$\sec A=\dfrac{11}{3}$

and

$\csc A=\dfrac{1}{\sqrt{1-\frac{9}{121}}}=\dfrac{1}{\sqrt{\frac{112}{121}}}=\dfrac{11}{4\sqrt 7}.$

Thus, the correct option is (a) sec A = 11 over 3.

3 0

4 years ago