All categories

3 years ago

How do I find the answer?

Mathematics

2 answers:

Yuki888 [10]3 years ago

8 0

Step-by-step explanation:

Hi there!

The best way to approach this problem is Soh Cah Toa.

In this case you can use sine. sine is opposite over hypotenuse.

so sin(17)= b/15

then to solve for b you multiply 15 on both sides to get 4.4

PilotLPTM [1.2K]3 years ago

8 0

Answer:

Step-by-step explanation:

This question is an application of the sine law

Equation

b/sin(B) = c / Sin(C)

Givens

b = ????

B = 17

c = 15

C = 140

Solution

Keep in mind that this may not work.

b/sin(17) = 15 / sin(140) Multiply both sides by sin(17)

b = 15*sin(17)/sin(140)

sin(17) = 0.2924
Sin(140) = 0.6428

b = 15*0.2924/0.6428

b = 6.8233

You might be interested in

Help help help help help help help help help

atroni [7]

Answer:

x=3√5

Step-by-step explanation:

This is a right angle triangle

So the equation is

2²+x²=7²

x=√7²-2²

x=3√5

8 0

3 years ago

Read 2 more answers

The points ????(0,0), ????(−4,1), ????(−3,5), and ????(1,4) are the vertices of parallelogram OABC Is this parallelogram a

gavmur [86]

Answer:

Yes, parallelogram OABC is a rectangle.

Step-by-step explanation:

The vertices of a parallelogram are O(0,0), A(-4,1), B(-3,5) and C(1,4).

A parallelogram is a rectangle if its any two adjacent sides are perpendicular to each other.

product of slopes of two perpendicular lines is -1.

Formula for slope is

$Slope=\dfrac{y_2-y_1}{x_2-x_1}$

Using the formula we get

$m_{OA}=\dfrac{1-0}{-4-0}=-\dfrac{1}{4}$

$m_{AB}=\dfrac{5-1}{-3-(-4)}=-\dfrac{4}{1}=4$

$m_{OA}\times m_{AB}=-\dfrac{1}{4}\times 4=-1$

It means OA is perpendicular to AB.

Since two adjacent sides are perpendicular, therefore the given parallelogram OABC is a rectangle.

6 0

3 years ago

algol [13]

Answer:

Emily receives $1,750 less after the shift

Step-by-step explanation:

5 0

3 years ago

in a survey it was found that ratio of people who liked modern songs and folk songs ia 8:9 out of which 50people liked both song

lina2011 [118]

Answer:

as in the question it is given that 50 people liked both songs 40 liked folk songs and 80 liked none of the song so we can add the number of people

50+40+80

170

Step-by-step explanation:

the people involved in the survey were 170

3 0

3 years ago

In 63, in which place is the 3? ones tens

I am Lyosha [343]

The digit 3 is in the ones place

8 0

3 years ago