2 years ago

Given that sinθ=-3/4 in quadrant 4 find cosθ

Mathematics

1 answer:

Gekata [30.6K]2 years ago

4 0

Step-by-step explanation:

sin∅=-3/4 in 4 quadrant which sine is negative there

using soh cah toa

sin=opp/hyp

where our opp=-3 and our hyp=4

using pythagoras theorem

hyp²=opp²+adj²

(4)²=(-3)²+adj²

16=9+adj²

16-9=adj²

adj²=7

adj=√7

from soh cah toa

cos∅=adj/hyp

cos∅=√7/4

You might be interested in

I'm stuck, plsss help ASAPP!!! :))

Bogdan [553]

Answer:

15 units

Step-by-step explanation:

$d \: = \sqrt{(x2 - x1) ^{2} + (y2 - y1) ^{2} }$

d = 14.866

d = 15

7 0

3 years ago

If 32% of a number is 64, what is the number?

AlekseyPX

The correct answer is 200 .

4 0

3 years ago

Read 2 more answers

What is the answer to this question?

Soloha48 [4]

The answer is A because if you go from each point on Q to R it is 7 units away

4 0

3 years ago

Help gai I need help its a math

dem82 [27]

Answer:

Step-by-step explanation:

Rewriting in slope-intercept form.

x - 2y = 0

Add -x on both sides.

- 2y = 0 - x

Divide both sides by -2.

y = 0/-2 - x/-2

y = 0 - - 1/2x

y = 0 + 1/2x

y = 1/2x + 0

The slope is 1/2, the y-intercept is at (0, 0).

6 0

2 years ago

Large balloons are sold in packages of 12. Select the expressions that can represent the total number of balloons in p packages

hammer [34]

Answer: For C and D you put the same answer but its D. P/ 12 which stands for p divided by 12.

Step-by-step explanation:

5 0

2 years ago