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valkas [14]
3 years ago
5

WILL GIVE BRAINLIEST!!!

Mathematics
1 answer:
WINSTONCH [101]3 years ago
7 0
188 students take the exam 188 divided by 80
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A water skier is pulled behind a boat by a rope. The rope has a tension of 290 N and is at an angle of 33 degrees. What is the x
Yanka [14]
Answer this question by trigonometry.
Draw the rope at an angle of 33 degrees from the x axis.

You will find:
cosx = a/h
cos33 = a/290
a. = 243.21
4 0
3 years ago
Read 2 more answers
How to solve the problem
lawyer [7]

Answer:

1440

Explanation:

1200 × .05 = 60

60 × 4 = 240

1200 + 240 = 1440

<h3><u>·</u><u>Hope</u><u> </u><u>I</u><u> </u><u>helped</u><u>,</u><u> </u><u>-</u><u>SunnySideHelper·</u></h3>
6 0
3 years ago
15. Rewrite the given functions in
Lisa [10]

15. The vertex form of f(x) = x² + 8x - 10 is f(x) = (x + 4)² - 26

17. The standard form of g(x) = (x + 3)² - 4 is g(x) = x² + 6x + 5

Step-by-step explanation:

Any quadratic function has:

1. A vertex form form f(x) = a(x - h)² + k, where (h , k) are the

   coordinates of its vertex point

2. A standard form g(x) = ax² + bx + c, where a , b , c are constant and

   a is the coefficient of x², b is the coefficient of x and c is the

    y-intercept

3. the x-coordinate of the vertex point h = \frac{-b}{2a} and

    k = f(h)

15.

∵ f(x) = x² + 8x - 10

∴ a = 1 and b = 8

∵ h = \frac{-b}{2a}

∴ h = \frac{-8}{2(1)}=-4

∴ h = -4

∵ k = f(h)

∴ k = f(-4)

- Substitute x by -4 in f(x)

∴ k = (-4)² + 8(-4) - 10

∴ k = 16 - 32 - 10

∴ k = -26

∴ f(x) = (x - -4)² + (-26)

∴ f(x) = (x + 4)² - 26

The vertex form of f(x) = x² + 8x - 10 is f(x) = (x + 4)² - 26

17.

∵ g(x) = (x + 3)² - 4

- Lets solve the power 2 of the bracket:

 (1st + 2nd)² = (1st)(1st) + 2(1st)(2nd) + (2nd)(2nd)

∵ (x + 3)² = (x)(x) + 2(x)(3) + (3)(3)

∴ (x + 3)² = x² + 6x + 9

∴ (x + 3)² - 4 = (x² + 6x + 9) - 4

∵ 9 - 4 = 5

∴ (x + 3)² - 4 = x² + 6x + 5

The standard form of g(x) = (x + 3)² - 4 is g(x) = x² + 6x + 5

Learn more:

You can learn more about the vertex form of quadratic function in brainly.com/question/9390381

#LearnwithBrainly

4 0
3 years ago
After getting 5 new rocks, George gave half of his rock collection to Susan. If George gave Susan 36 rocks, which equation could
kirill [66]

36 x 2 = 72

72-36 = 36 - 5 = 31

31 rocks to start with

4 0
3 years ago
Read 2 more answers
7 more than 6 times a number is negative forty seven what us the number
romanna [79]

Answer:

The number is -9.

Step-by-step explanation:

If we let the number be x we have the equation 6x + 7 = -47.

6x + 7 - 7 = -47 - 7

6x = -54

x = 054/6

x = -9.


3 0
3 years ago
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