3 years ago

Find the slopes of the line

Mathematics

1 answer:

pantera1 [17]3 years ago

4 0

Answer:

1/4

Step-by-step explanation:

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Solve for x in the diagram below

mario62 [17]

Answer: x° = 20

Steps:
100 + x + 3x = 180
x + 3x = 80
4x = 80
x = 80/4
x = 20

Check:
100 + x + 3x = 180
100 + 20 + 3(20) = 180
100 + 20 + 60 = 180
180 = 180 ✅

7 0

2 years ago

Verify that [tan(theta) + cot(theta)]^2 = sec^2(theta) + csc^2(theta)

Wittaler [7]

(tanθ + cotθ)² = sec²θ + csc²θ

Expand left side: tan²θ + 2tanθcotθ + cot²θ

Evaluate middle term: 2tanθcotθ = $2*\frac{sin\theta}{cos\theta}*\frac{cos\theta}{sin\theta}$ = 2

⇒ tan²θ + 2+ cot²θ

= tan²θ + 1 + 1 + cot²θ

Apply trig identity: tan²θ + 1 = sec²θ

⇒ sec²θ + 1 + cot²θ

Apply trig identity: 1 + cot²θ = csc²θ

⇒ sec²θ + csc²θ

Left side equals Right side so equation is verified

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2 years ago

What is 2(d+9) expression

Ber [7]

If asking to simplify 2d + 18

6 0

3 years ago

Read 2 more answers

2. Sequoia trees can grow to more than 90 m in

sashaice [31]

Answer: F

Step-by-step explanation: 90/3.28 equals 27.4390244

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2 years ago

a wheelchair ramp is 9 feet long and sits 2.5 ft high. how long will a similar ramp be if it sits 1.5 ft high from the ground

bixtya [17]

The second ramp should be 5.4 ft long

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3 years ago