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Firdavs [7]
2 years ago
14

Points A, B, C and D have coordinates A(5, 7), B(7, 1), C(17, m) and D(−1, 3). If line

Mathematics
2 answers:
STatiana [176]2 years ago
6 0

Answer:

3

Step-by-step explanation:

I used  a graph

DENIUS [597]2 years ago
6 0

Answer:

Use the slope formula to determine the slope of the line (m) if not given. ... (3,3) a. B(1,1). 7) Write an equation of the circle whose diameter

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Which of these is equal to cos 19°? A) sin 71° B) sin 81° C) cos 71° D) cos 81°
Over [174]
Cos α = sin (90-α) so cos 19 = sin 90-19 = sin 71
7 0
2 years ago
Read 2 more answers
Need some help with this question, any help is appreciated!
Xelga [282]

Answer:

The answer to your question is: third option is correct

Step-by-step explanation:

According to the graph we can see that the points where both lines crosses are:

A (4, 8)   and  B (-4, 0)

6 0
3 years ago
Help, Help, Please
Lesechka [4]

Answer:

θ = \frac{\pi }{3} (60° )

Step-by-step explanation:

Using the identity

sin²x + cos²x = 1 ⇒ sin²x = 1 - cos²x

Given

cos²θ - sin²θ = 2 - 5cosθ

cos²θ - (1 - cos²θ) = 2 - 5cosθ

cos²θ - 1 + cos²θ = 2 - 5cosθ

2cos²θ - 1 = 2 - 5cosθ ( subtract 2 - 5cosθ from both sides )

2cos²θ + 5cosθ - 3 = 0 ← in standard form

(cosθ + 3)(2cosθ - 1) = 0 ← in factored form

Equate each factor to zero and solve for θ

cosθ + 3 = 0

cosθ = - 3 ← not possible as - 1 ≤ cosθ  ≤ 1

2cosθ - 1 = 0

cosθ = \frac{1}{2} , so

θ = cos^{-1} (\frac{1}{2} ) = \frac{\pi }{3} ( or 60° )

8 0
2 years ago
Read 2 more answers
A polygon is broken up into 4 non-overlapping triangles by drawing lines from one vertex to all other non-adjacent vertices. Wha
Arte-miy333 [17]
Octagon 
hope  this helps!
-MalStar
5 0
3 years ago
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You have a coupon worth $18.00 off the purchase of a scientific calculator. At the same time the calculator is offered with a 15
olchik [2.2K]

Answer:

well using your equation p - 18 = 0.85p the answer is p = 120

when u apply p = 120 to your equation

(120) - 18 = 0.85(120)

simplify

102 = 102

I hope this helps you

8 0
3 years ago
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