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3 years ago

Which relationship in the triangle must be true?

2 answers:

8 0

Cosine stands for "complementary sine." The sine of an angle is the cosine of the complementary angle and vice versa. Complementary angles add to 90°.

Answer: sin(B) = cos(90 - B)

It's true for any angle, and it doesn't have much particularly to do with a triangle.

e-lub [12.9K]3 years ago

8 0

COS(B)=sin(180-B).

Because a triangle have a 180 degree angle

You might be interested in

Without graphing, write the equation of the axis of symmetry for f(x) = 4|x + 8] - 5.

iren [92.7K]

Answer:

The line of symmetry is x=8

Step-by-step explanation:

7 0

3 years ago

Help please !! thank youu

VLD [36.1K]

Answer:

d = √91 ft = about 9.53 ft

Step-by-step explanation:

use pythagorean theorem which is a²+b²=c²

(the hypotnuse which is opposite side of the right angle is always going to be C in the pythagorean theorem)

a = 3 b = ? c = 10

(3)² + b² = (10)²

9 + b² = 100

subtract 9 from both sides

b² = 91

take the square root of both sides

b = ±√91

so the side d = √91 ft = about 9.53 ft

3 0

3 years ago

Katie is biking to the beach. The graph gives her distance from the beach x hours after she began riding.

Burka [1]

Answer:

1. Distance from Katie's House to the beach = 75 km

2. Hours that it takes to get to the beach = 6 hrs

3. -12.5 which tells us the rate at which katie traveled which was 12.5 km per hour

Steps to 3.

Rise/Run = -75/6 = -12.5 = slope

3 0

4 years ago

Read 2 more answers

Can some one explain it 2 me i will appreciate it!

hichkok12 [17]

Answer: y = 6x - 4

Step-by-step explanation: -4 is the y-intercept and y=6 is parallel so it doesn't change.

7 0

3 years ago

Read 2 more answers

Please help!!! 98 Points!!! Find the values of x and z.

Anna007 [38]

Answer:

z=63°{vertically opposite angle}

now,

z+10x+97=18o°{straight angle}

63+10x+97=180°

10x=180-133

x=20

10

x=2

hope it helps.

5 0

3 years ago