Mathematics, 30.01.2020 23:57 mario65

Find sin and tan (picture provided)

Answers: 3

Show answers

Answers

Answer from: bnvghnbbb

Option C. $sin(\theta)=-\frac{\sqrt{33}}{7}$ , $tan(\theta)=-\frac{\sqrt{33}}{4}$

Step-by-step explanation:

we know that

If cosine of angle theta is positive then angle theta belong to the I or IV quadrant

and

If co secant of angle theta is negative then angle theta belong to the III or IV quadrant

therefore

angle theta belong to the IV quadrant (common solution)

Part 1) Find $sin(\theta)$

we know that

$sin^{2} (\theta)+cos^{2} (\theta)=1$

we have

$cos(\theta)=4/7$

substitute the value

$sin^{2}(\theta)=1-(4/7)^{2}$

$sin^{2}(\theta)=1-(16/49)$

$sin^{2}(\theta)=(33/49)$

$sin(\theta)=-\frac{\sqrt{33}}{7}$ ----> is negative because the angle belong to the IV quadrant

Part 2) Find $tan(\theta)$

we know that

$tan(\theta)=\frac{sin(\theta)}{cos(\theta)}$

we have

$sin(\theta)=-\frac{\sqrt{33}}{7}$

$cos(\theta)=4/7$

substitute the values

$tan(\theta)=\frac{-\frac{\sqrt{33}}{7}}{4/7}$

$tan(\theta)=-\frac{\sqrt{33}}{4}$

Answer from: Quest

d≈7.07in

step-by-step explanation:

Answer from: Quest

a. we have two

lines: y = 4-x and

y = 8-x^-1

given two simultaneous equations that are both to be

true, then the solution is the points where the lines cross. the intersection is

where the two equations are equal. therefore the solution that works for both

equations is when

4-x = 8-x^-1

this is where the two lines will cross and that is the

common point that satisfies both equations.

b. 4-x = 8-x^-1

x 4-x 8-x^-1

-3 7

8.33

-2 6 8.5

-1 5 9

0 4

1 3

2 2

7.5

3 1 7.67

the table shows that none of the x values from -3 to 3 is

the solution because in no case does

4-x = 8-x^-1

to find the solution we need to rearrange the equation to

find for x:

4-x = 8-x^-1

multiply both sides with x:

4x-x^2 = 8x-1

x^2+4x-1=0

x= -4.236, 0.236

therefore there are two points that satisfies the

equation.

find y:

x=-4.236

y = 4-x = 4 – (-4.236)

= 8.236

y = 8-x^-1 = .236)^-1

= 8.236

x=0.236

y = 4-x = 4 – (0.236) = 3.764

y = 8-x^-1 = 8-(0.236)^-1

= 3.764

thus the two lines cross at 2 points:

(-4.236, 8.236) & (0.236, 3.764)

c. to solve

graphically the equation 4-x = 8-x^-1

we would graph both lines: y = 4-x and y

= 8-x^-1

the point on the graph where the lines cross is the

solution to the system of equations.

just graph the points on part b on a cartesian coordinate

system and extend the two lines. the

solution is, as stated, the point where the two lines cross on the graph.

step-by-step explanation:

mark brainliest!

Another question on Mathematics

Mathematics, 21.06.2019 19:00

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

Answers: 1

Answer

Mathematics, 21.06.2019 20:50

Determine the common ratio and find the next three terms of the geometric sequence. 649-14-02-00-00_files/i0100000, 649-14-02-00-00_files/i0100001, 2, a. 3; 649-14-02-00-00_files/i0100002, 649-14-02-00-00_files/i0100003, 649-14-02-00-00_files/i0100004. c. 649-14-02-00-00_files/i0100005; 649-14-02-00-00_files/i0100006, 649-14-02-00-00_files/i0100007, 649-14-02-00-00_files/i0100008. b. 3; 6, 18, 54 d. 649-14-02-00-00_files/i0100009. 6, 18, 54 select the best answer from the choices provided a b c d

Answers: 1

Answer

Mathematics, 21.06.2019 21:30

50 people men and women were asked if they watched at least one sport on tv. 20 of the people surveyed are women, but only 9 of them watch at least one sport on tv. 16 of the men watch at least one sport on tv. make a a two-way table and a relative frequency table to represent the data.

Answers: 3

Answer

Mathematics, 21.06.2019 23:00

Siri can type 90 words in 40 minutes about how many words would you expect her to type in 10 minutes at this rate

Answers: 1

Answer

You know the right answer?

Find sin and tan (picture provided)
...

Questions