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3 years ago

Find x round to the nearest tenth! please help!!! more trigonometry!

Mathematics

1 answer:

hoa [83]3 years ago

6 0

Answer:

Step-by-step explanation:

Look at the picture.

Use cosine:

$cosine=\dfrac{adjacent}{hypotenuse}$

We have a measure of the angle and length of the hypotenuse:

$\alpha=29^o,\ hypotenuse=500\ ft$

$\cos29^o\approx0.87461$

Substitute:

$\dfrac{y}{500}=0.87461$ multiply both sides by 500

$y=437.305\to y\approx437.3$

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A book club charges an initial joining fee of $18.00. The cost per book is $10.25. The graph shows the cost of belonging to the

Alex73 [517]

The question doesn't show any graph, but I have included it to help you with the problem.

Answer:

The new graph will be shifted up by 3 units

Step-by-step explanation:

Graph of a Real Function

The total cost of belonging to the book club depends on one fixed cost, the initial joining fee, and a variable cost, depending on the number of books purchased. Call C the total cost and x the number of purchased books, then

$C=18+10.25x$

By giving x some values, we get the corresponding values of C and then we can plot the graph as a blue line, in the image provided below.

If the joining fee goes up by $3, the new function is

$C'=18+10.25x+3$

$C'=21+10.25x$

The graph is also shown in the image, but with a red line. We can see the graph is shifted up by 3 units in the y-axis, but the slope remains the same, as the cost per book hasn't changed

7 0

3 years ago

naomi has earned $54 mowing lawns the past two days. she worked 2.5 hours yesterday and 4.25 hours today. if namoni is paid the

SSSSS [86.1K]

First I added 2.5+4.25=6.75
Then do $54/6.75=$8
Answer=$8

7 0

3 years ago

Last week, Ann bought 9 books and 5 movies for a total of $124.

Elodia [21]

Answer:

Step-by-step explanation:

Set up a system of equations where b is the cost of a book and m is the cost of a movie:

9b + 5m = 124

4b + 21m = 318

Solve by elimination by multiplying the top equation by -21 and the bottom equation by 5:

-189b - 105m = -2604

20b + 105m = 1590

Add the equations together, then solve for b:

-169b = -1014

b = 6

So, the cost of a book is $6

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3 years ago

How do I find the answer for 1/2 of 3/5

Tems11 [23]

The answer is 0.3. To find this answer, 1/2 / 3/5 = 56 ≅ 0.8333333

7 0

4 years ago

(-3C^4-5C^2-7C)+(4C^4+8C^3+2C^2) in standard form

posledela

Answer:

C(C^3 + 8C^2 -3C -7)

Step-by-step explanation:

(-3C^4-5C^2-7C)+(4C^4+8C^3+2C^2)

(-3C^4 +4C^4)+8C^3 + ( -5C^2 +2C^2) -7C [Combine like terms]

C^4 + 8C^3 -3C^2 -7C [Simplify]

C(C^3 + 8C^2 -3C -7) [Isolate 1C from the rest]

4 0

3 years ago

Find x round to the nearest tenth! please help!!! more trigonometry!​

Find x round to the nearest tenth! please help!!! more trigonometry!