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sdas [7]
4 years ago
9

Angles A and B are supplementary. The measure of angle A is 60° and the measure of angle B is represented by 3x. Which equation

can be used to determine the value of x?
The equations are
A. 60+3x=90
B. 3x+60=180
C. 60-3x=180
D. 3x=60​
Mathematics
1 answer:
boyakko [2]4 years ago
5 0
B
because the angles are supplementary meaning they add up to 180
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Omar's gas tank is 1/10 full. After he buys 6 gallons of gas, it is 2/5 full. How many gallons can Omar's tank hold?
castortr0y [4]
1/10x + 6 = 2/5x
6 = 2/5x - 1/10x
6 = 4/10x - 1/10x
6 = 3/10x
6 / (3/10) = x
6 * 10/3 = x
60/3 = x
20 = x <=== the gas tank can hold 20 gallons
4 0
3 years ago
Which equation is correct
Sergeeva-Olga [200]
1. Two of the main identities used in trigonometry for right triangles (Triangles that have an angle of 90°) are: Sine (Sin) and Cosine (Cos).


 Sin x°=Opposite/Hypotenuse

 Cos x°=Adjacent/Hypotenuse

 2. The inverse of Sinx° is Cosec x°, then:

 Cosec x°=1/Sin x°

 3. The inverse of Cos x° is Sec x°, then:

 Sec x°=1/Cos x°

 4. Keeping this on mind, you have:

 Cosc x°=Hypotenuse/Opposite

 Sec x°=Hypotenuse/Adjacent

 5. Therefore, the correct answer is:

 The third option: Cosec x°=Hypotenuse/Opposite.
7 0
3 years ago
Read 2 more answers
Please help i need it quickly i only have 5 minutes left. ill give brainliest.
Gemiola [76]

Answer:

A

B

C

Step-by-step explanation:

A

11=4(7)-17

11=28-17

11=11

B

-13=4(1)-17

-13=4-17

-13=-13

C

-1=4(4)-17

-1=16-17

-1=-1

6 0
3 years ago
I need help with both questions on the screen. if you can only answer one thats fine too!
meriva

Answer:

11. b = 30

Step-by-step explanation:

a^{2} + b^{2} = c^{2}

Substitute

16^{2} + b^{2}  = 34^{2}

256 + b^2 = 1156

b^2 = 1156-256\\b^2 = 900

b = \sqrt{900}

b = 30

Your welcome and don't forget to say <u>Thanks</u>

7 0
3 years ago
What is the probability of drawing a red, not replacing it, and then drawing another red card?
umka21 [38]
If your asking for a standard deck of cards the probability is 1/8
7 0
3 years ago
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