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My name is Ann [436]
4 years ago
11

Write an

Mathematics
1 answer:
KengaRu [80]4 years ago
3 0

Answer:

-9r+3.2s+4

Step-by-step explanation:

- (9r – 3.2s) + 4

Distribute the minus sign

-9r - -3.2s+4

Subtracting a negative is like adding

-9r+3.2s+4

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Beverly is driving up a hill at an incline of 45 degrees. She will travel 13 miles to reach the top. What is the height of the h
quester [9]

Answer:

The height of the hill is of 9.19 miles.

Step-by-step explanation:

Relations in a right triangle:

The sine of an angle is given by the measure of the opposite side divided by the hypotenuse.

The cosine of an angle is given by the measure of the adjacent side divided by the hypotenuse.

In this question:

Angle of 45º, and drives 13 miles. Due to the inclination, this represents the hypotenuse.

The height is the opposite side. So

\sin{45} = \frac{h}{13}

We have that \sin{45} = \frac{\sqrt{2}}{2} = 0.71

\sin{45} = \frac{h}{13}

0.71 = \frac{h}{13}

h = 13*0.71 = 9.19

The height of the hill is of 9.19 miles.

3 0
3 years ago
How do I do Q43B someone please help!!
Setler79 [48]
43b) WCD = (6-2)*180/6 = 120 BCD = (5-2)*180/6 = 108 360-120-108=132 (angle at a point) CBW = (180-132)/2 = 24 (isosceles triangle)
5 0
3 years ago
Fifteen tickets Cost 193.75. What is the average Cost of racha ticket
Amanda [17]
I think it might be 12.92. just divide 193.75 by 15. you get <span>12.916... round the cost to the nearest cent and you get 12.92. yay!!</span>
4 0
3 years ago
Read 2 more answers
Garrett has deposited 519 in a savings account that earns interest at a rate of 4.2% compounded daily. What will the account bal
kipiarov [429]
$1059.83 Use this formula:
A=P(1+r/n) ^{nt}

P=principal of 519
r= your rate of 4.2% as a decimal
n=number of compounding periods; yours is daily or 365 day in a year.
t=time involved of the investment in years; yours is 17

7 0
3 years ago
Help it is for my final!!!!!
Lelechka [254]
No solution it’s c hope this helps and I hope you pass your final :)
3 0
3 years ago
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