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zhenek [66]
3 years ago
15

In right ∆ABC, C is a right angle and sin A = 243/312. What is mB?

Mathematics
1 answer:
Ganezh [65]3 years ago
3 0
The sin of any given angle is:
sin(∅) = perpendicular / hypotenuse

The perpendicular of angle A will be equivalent to the base of angle B. Therefore,
Cos(B) = 243/312
B = Cos⁻¹(243/312)
B = 38.8°

The measure of angle B is 38.8 degrees.
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Arada [10]

Answer:

I'm pretty sure the answer is B

Step-by-step explanation:

sorry if I'm wrong

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3 years ago
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If y = 6x - 4 which of the following sets represents possible inputs and outputs of the function represented as ordered pairs?
noname [10]

The only of these that is a proper set of ordered pairs for this equations is A) (0,-4) (1,2) (3,14)

In order to prove this, you need to put each ordered pair into the equation and prove that it is a true statement. Below are the examples of this for A.

(0, -4)

y = 6x - 4

-4 = 6(0) - 4

-4 = 0 - 4

-4 = -4 (TRUE)

(1, 2)

y = 6x - 4

2 = 6(1) - 4

2 = 6 - 4

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(3, 14)

y = 6x - 4

14 = 6(3) - 4

14 = 18 - 4

14 = 14 (TRUE)

Therefore, each of these ordered pairs works in the equation.

7 0
3 years ago
One line segment m is (3x + 5) units long and line segment n is (x - 10). What is the value of r if line segments m and n are co
frosja888 [35]

Answer:

I believe it is -17.5. Tell me if I am wrong

Step-by-step explanation:

3x + 5 = x - 10

-x   -5   -x    -5

2x = -15

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3(7.5) + 5

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4 0
4 years ago
Find the perimeter of the polygon. a trapezoid with bottom base of 8 centimeters, top base of 5 centimeters, and sides of 6 cent
Irina-Kira [14]

The perimeter of the polygon, which is a trapezoid with the given parameters, is: A. 25 cm.

<h3>What is the Perimeter of a Polygon?</h3>

To find the perimeter of a polygon, sum all the length of the sides of the polygon.

Given the sides of the trapezoid as 8 cm, 5 cm, and two sides of 6 cm each

Perimeter = 8 + 5 + 6 + 6

Perimeter = 25 cm.

Learn more about perimeter of polygon on:

brainly.com/question/3310006

#SPJ4

8 0
2 years ago
Curtis threw 15 darts at a dartboard.40% of his darts hit the bull’s eye.how many darts not hit the bulls eye?
Harlamova29_29 [7]

Answer:

9

Step-by-step explanation:

The number of darts that failed to hit the bulls eye is 40% of 15 subtracted from 15

Since 40% of the darts hit the bulls eye .

Therefore

40% of 15

40/100 x 15

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This means that 6 darts hit the bulls eye.

Therefore,number of darts that did not hit the bulls eye is

15 - 6 = 9

9 darts failed to hit the bulls eye

7 0
3 years ago
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