All categories

2 years ago

Can someone tell me how to solve this?

Mathematics

1 answer:

Pachacha [2.7K]2 years ago

8 0

Answer:

The answer to your question is:

a) sin Ф = -3/√10

b) cos Ф = 1/√10

c) tan Ф = -3

Step-by-step explanation:

See the picture below

just remember

sin Ф = opposite / hypotenuse

cos Ф = adjacent / hypotenuse

tan Ф = opposite / hypotenuse

You might be interested in

A number consists of two digit whose sum is five

Nataly [62]

Answer:

Step-by-step explanation:

5 0

2 years ago

Use the distributive property -5 {x + 4} + -3x + -9x + -7

grin007 [14]

Answer:

-17x - 27

Step-by-step explanation:

Distributive property is the multiplication of the number outside the parenthesis and the ones inside.

-5(x + 4) + -3x + -9x + -7

-5x - 20 + -3x + -9x + -7

Combine like terms:

-5x - 20 + -3x + -9x + -7

-5x +-3x

-8x + -9x

-17x

-17x - 20 + -7

-20 + -7

-27

The answer is -17x - 27

Hope this helped.

8 0

2 years ago

Please help! Question Down below.

Luden [163]

Answer:

17.5 i think

Step-by-step explanation:

2+3+1.5+2+9=17.5

6 0

2 years ago

The image below is a triangle drawn inside a circle with center O:

Alex17521 [72]

The area of a circle is,

$\pi \: \times r ^{2}$

So pi times the radius squared.

~~

To find the radius we half to divide the diameter by 2 since the radius is half of the diameter.

The diameter is the line that passes through the the center of the circle going from one side of the circle to the other which is 4 in this case.

Half of 4 is 2 meaning 2 is our radius.

~~

Plug in the numbers and get,

$3.14 \times 2^{2}$

~~

I hope that helps you out!!

Any more questions, please feel free to ask me and I will gladly help you out!!

~Zoey

8 0

2 years ago

Read 2 more answers

Mr. Smith estimates that

OLEGan [10]

Answer:

B. 7.5 hours

Step-by-step explanation:

Assuming that both hoses fill at the same rate, then by simple proportion,

To raise the pool by 1 foot of water:

1 hose ---> takes 3 hours

2 hoses ----> fills twice as fast ---> will take half the time ---> 3/2 = 1.5 hrs

Hence with 2 hoses, it will take 1.5 hours to fill 1 foot of water.

to fill 5 feet of water, we will need 1.5 hours x 5 feet = 7.5 hours

5 0

2 years ago

Read 2 more answers