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3 years ago

What is x ? 15 POINTS

Mathematics

2 answers:

scoundrel [369]3 years ago

7 0

Answer: I believe x=10

anastassius [24]3 years ago

3 0

Answer:

x = 10°

Step-by-step explanation:

The internal angles of the triangle are

46°, 8x-2 and y

By looking at the picture, we can see that

11x +14 + y = 180°

y = 180° - 11x -14 = 166 -11x

The sum of the internal angles of a triangle equals 180°, so

46 + 8x - 2 + 166 -11x = 180°

Solving for x

-3x = 180 - 166 -46 + 2 ===> -3x = -30 ===> x = (-30)/(-3) = 10

So x = 10°

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Nik needs to estimate how many books will fit in a bin. Each book is 0.75 feet tall, 0.75 feet wide, and 0.25 feet thick. The bi

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Step-by-step explanation:

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2 years ago

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2 years ago

Read 2 more answers

Special right triangles, find x and y

egoroff_w [7]

Answer:

The answer to your question is x = 17.32; y = 8.67

Step-by-step explanation:

Process

1.- Use trigonometric functions to find x and y

a) sin Ф = $\frac{opposite side}{hypotenuse}$

Ф = 60°

opposite side = 15

hypotenuse = ?

$hypotenuse = \frac{opposite side}{sin \alpha }$

$hypotenuse = \frac{15}{sin 60}$

$hypotenuse = \frac{15}{0.87}$

hypotenuse = 17.32

b) cosФ = $\frac{y}{hypotenuse}$

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5 0

3 years ago

HELP NEEDED ASAP WILL GIVE 5 STAR RATING AND BRAINLIEST!

stealth61 [152]

Answer:

The answer to your question is: ∠K = 138°

Step-by-step explanation:

m∠N = 42°

m∠K = ?

The sum of all the internal angles in a quadrangle equals 360°

then

∠N + ∠L + ∠M + ∠K = 360°

∠N = ∠ L and ∠M = ∠K

So, 2 ∠N + 2 ∠K = 360

Substitution

2 (42) + 2 ∠K = 360

84 + 2 ∠K = 360

2 ∠K = 360 - 84

2 ∠K = 276

∠K = 276 / 2

∠K = 138°

8 0

2 years ago