2 years ago

This is the question

Mathematics

1 answer:

Maurinko [17]2 years ago

7 0

I dont see a question.

You might be interested in

Plz can I get some help thank u sm

alexira [117]

Step-by-step explanation:

The sum of two opposite interior angles equals an exterior angle

50+?=115

?=115-50=65°

6 0

2 years ago

Read 2 more answers

What is the value of xin the diagram? A. 9 B. 8 C. 7 D. 6

RoseWind [281]

Answer:

Step-by-step explanation:

The ratio of the similar triangles is

14 49

---- = ------

2 x

Using cross products

14x = 2*49

14x = 98

Divide by 14

14x/14 = 98/7

x =7

7 0

2 years ago

Solve 2csc^2x-2cscx-1=0 for 0° ≤ x ≤ 360°

umka21 [38]

Answer:

Step-by-step explanation:

2 csc²x-2 csc x-1=0

$\frac{2}{sin^2x} -\frac{2}{sin x} -1=0\\multiply~by~sin^2x\\2-2sin~x-sin^2x=0\\sin^2x+2sinx-2=0\\sin ~x=\frac{-2 \pm\sqrt{2^2-4*1*(-2)} }{2*1} \\=\frac{-2 \pm\sqrt{4+8} }{2} \\=\frac{-2 \pm\sqrt{4*3} }{2} \\=\frac{-2 \pm2\sqrt{3} }{2} \\=-1\pm\sqrt{3} \\|sin~x| \le ~1\\so~sin~x=-1+\sqrt{3} \\sin~x=\sqrt{3} -1\\x=sin^{-1}(\sqrt{3} -1) \approx 47.06^\circ,180-47.06\\or~x=47.06^\circ,132.94^\circ$

6 0

2 years ago

Write -8 in simplest radical form.

Nadya [2.5K]

2.8 or if rounded to the nearest tenth so 2.8√8

4 0

2 years ago

PLEASE HELP Which of the following is the inverse of f(x)=3-x/5

BabaBlast [244]

Answer:

f^-1(x) = 3 - 5x, second option

Step-by-step explanation:

To determine the inverse simply interchange the variables and solve for y;

f(x) = 3 - x / 5 -> Interchange the variables

x = 3 - y/5 -> Multiply either side by 5

5x = 3 - y -> Subtract three from either side

- y = 5x - 3 -> Divide either side by - 1

y = - 5x + 3

Your solution is f^-1(x) = 3 - 5x

8 0

3 years ago

This is the question​

This is the question