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Ahat [919]
3 years ago
9

Does anyone know the answer?

Mathematics
2 answers:
tiny-mole [99]3 years ago
8 0
The goal is to find the length of side BC. You need the trigonometric function “sine” to solve this.

sin(angle) = (opposite) / (hypotenuse)

Plugging in:
sin(65°) = (?) / (6)

Solve for the (?):
6 * sin(65°) = (?)

With a calculator, I find the answer to be approximately
(?) = 0.90631
coldgirl [10]3 years ago
3 0

Answer:

5.44

Step-by-step explanation:

From Trigonometry Identity,

Sin65= CB/AB

CB = AB Sin65

= 6 × Sin65

= 5.4378

= 5.44{ to the nearest hundredth}

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I don’t get number 7
VikaD [51]

C because 43 divided by 50 is 0.86

5 0
3 years ago
Read 2 more answers
Evaluate the expression for x=2 and y=4.<br> (x5y?)/(x3y5)
Step2247 [10]

Answer:

(2 x 5 x 5) / (2 x 3 x 4 x 5)

=40/120

= 4/12

= 1/3

5 0
3 years ago
Please help. i am screaming my brain out right now
Marina86 [1]

Answer:

B

Step-by-step explanation:

3x - 3 >     42

3x - 3         42

     +3          + 3

3x      >      45

3x / 3         45/3

x         >       15

x can be 16

3 0
3 years ago
A rectangular swimming pool is 20 ft long 15 feet wide,and 6 feet deep. How much water is needed to fill the pool completely ?
sergejj [24]

Answer: 1,800 ft.³

Step-by-step explanation: To find out how much water is needed to fill the pool, we need to find the volume of the pool. It's also important to understand that the swimming pool is a rectangular prism so we are finding the volume of a rectangular prism.

To find the volume of the pool, we use the formula shown.

<em>Volume = length × width × height </em>

Since the length of the pool is 20 feet, the width is 15 feet, and the depth or height is 6 feet we can plug this information into the formula.

Volume = (20 feet) (15 feet) (6 feet) = 1,800 ft.³

Therefore, it will take 1,800 cubic feet of water to fill the pool.

6 0
3 years ago
Math Help PLZ!!!!!!!!!
VMariaS [17]

Answer: C

<u>Step-by-step explanation:</u>

 f(x) =   2x + 1  ⇒       2x + 1

<u>- g(x) = -(x² - 7) </u>⇒  <u>-x²     + 7 </u>

              (f-g)(x) = -x² + 2x + 8

4 0
3 years ago
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