The measures of the angles of a triangle solve for X

Answer:

x = 7

Step-by-step explanation:

Because this is a right triangle, one angle is a right angle (90°). All triangles have all three angle measures adding up to 180°, so the other two angles' measures add up to 90° (90 + 90 = 180).

Combine like terms of the angle measures.

6x + 9x = 15x

-3 + (-12) = -15

15x - 15

Because the sum of the measures of the two angles have to equal 90,

15x - 15 = 90

Add 15 from both sides.

15x = 105

Divide both sides by 15.

x = 7

To check, substitute 7 in both expressions.

6(7) - 3 = 39

9(7) - 12 = 51

39 + 51 + 90 (the measure of the right angle) = 180, so the value of x is 7.

I hope this helped :)

I dont understand this

The work shown is a way to derive Tangent (x + y) = StartFraction tangent (x) + tangent (y) Over 1 minus tangent (x) tangent (y) EndFraction

What expressions go in the derivation of the tangent sum identity in place of A, B, and C?
Cos y cos x tan y sin x

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is 0.5 or 17/34 greater

Please can someone help me?? I’ll give brainliest to the correct answer!!

Which situation does NOT show causation?

A) When the student population at a school increases, the number of teachers at the school increases

B) when the amount of sugar in a quart of apple juice is reduced, there are fewer calories in each serving

C) When there are more workers on a project, the project is completed in less time.

D) When there is more protein in an athlete’s diet, the athlete scores more points in a game.

Determine the slope of each equation below:
y = 3x -8
y-4 = [(x + 5)
12x + 2y = 18

Which of the following can be used to find the measure of angle C, angle D, and ankle E?

A-Pythagorean Theorem

B-Triangle Sum Theorem

C-Isosceles Triangle Theorem

D-AAA Postulate Theorem

Solve.
5 (2 – 3) < 5W + 20

Multiply the polynomial expressions below.
(7x+5)(2x^3-4x^2+9x-3)
A. 14x^4-18x^3+43x^2+24x-15
B. 14x^4-18x^3+43x^2+24x-8
C.9x^4-11x^3+16x^2+11-8
D.9x^4-11x^3+16x^2+11x-15

What is the least common multiple (LCM) of 3 and 5?

What's the square root of 17 rounded to the nearest tenth

Si el ∡P y el ∡Q son ángulos alternos internos, y la medida de un ángulo suplementario a uno de ellos mide 135° ,¿cuánto miden el ∡P y el ∡Q respectivamente?

Please help!!!

Explain and correct the error in this calculation.

At an online fruit dealer, it costs $39 for 75 cases of bananas. What is the unit price?

Can someone explain how you solve proofs?

PLease answer the slope
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.53х^2 – .6х^3
Standard form

what is the slope of the line 5x +2y = -15

A backpack originally costs $35.It is on sale for $22.75. Find the percent of decrease.

21 points bruh and also sub to RahimZ

Which number would make this inequality true?


______ <0.271



0.27100


0.28


0.21


0.309

Convert 4/7 to 42nds

PLS PLS PLS HELP THIS IS AN ALGEBRA 2 QUESTION

The drop down options are explicit and recursive.

An adult female gorilla is 1.4 meters tall when standing upright. Her daughter is 3 tenths as tall. How much more will the young female gorilla need to grow before she is as tall as her mother?

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soo uh who's good at math i mean really,if you plz tell me everything about it i just wanna get this over with
(I'm dumb btw)​

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Taylor has a collision deductible of $500 and a Bodily Injury Liability coverage limit of $50,000.

Taylor hits another driver and injures them severely.

The case goes to trial and there is a verdict to compensate the injured person for $40,000.

a) How much does Taylor have to pay?

b) How much does Taylor's insurance pay?

1. Given: 3(m-2) + 14 = 38
Prove: m= 10
please help it’s a proof