All categories

2 years ago

Given sinx=0.3, what is cosx? enter your answer as a decimal in the box. round only your final answer to the nearest hundredth.

Mathematics

1 answer:

melomori [17]2 years ago

8 0

The value of the cox will be equal to Cosx= $\pm$ 0.95

<h3>What is the value of cosx?</h3>

It is given that

The value of Sinx=0.3

Now we know that

$Sin^2x+Cos^2x=1\\\\0.3^2+Cos^2=1\\\\Cos^2=1-0.3^2\\\\Cos^2x=1-0.9\\\\Cos^x=0.91\\\\Cos=\sqrt{0.91}\\\\Cosx=\pm 0.95$

Hence the value of Cosx= $\pm$ 0.95

To know more about trigonometry identities follow

brainly.com/question/24496175

You might be interested in

The cost of 12 kg sugar is $240 what will be the cost of 3 kg sugar

Alexus [3.1K]

Question:

The cost of 12 kg sugar is $240 what will be the cost of 3 kg sugar.

Given:

Cost of 12 kg sugar = $240

To find?

cost of 3 kg sugar

Answer :

To find cost of 3kg sugar first we have to find cost of 1 kg sugar.

Cost of 1 kg sugar = Cost of total no. of sugar ÷Total sugar
Cost of 1 kg sugar = $240/12
Cost of 1 kg sugar = $20

Now Let's find cost of 3 kg sugar

Cost of 3kg sugar = total no of sugar ×Cost of 1 kg sugar

Cost of 3kg sugar = 3×$20

Cost of 3kg sugar = $60

3 0

2 years ago

Please help me . I am trying to do cancellation but i am having trouble

qwelly [4]

In this question, you are only able to cancel out the (x + 5). The others are unable to be cancelled.

4 0

2 years ago

Seven times a number is 5600. what is the number?

Vika [28.1K]

To do this you need to work backwards. if you note the number as 'n' you can put
7n = 5600
to find n you simply divide both sides by 7 getting
n = 5600/7
n = 800

5 0

3 years ago

Read 2 more answers

What is 13/78 redused to its lowest form

Wewaii [24]

Divide to get a low form of a fraction.
13 divide by 13 = 1
78/13 = 6

1/6 would therefore, be the lowest form

6 0

3 years ago

Read 2 more answers

If you are 600 m from a batter when you see him hit a ball, how long will you wait to hear the sound of the bat hitting the ball

Molodets [167]

Answer:

The speed of sound at 20°C is 343.42 m/s.

You have to wait 1.75 seconds to hear the sound of the bat hitting the ball

Step-by-step explanation:

Speed of Sound

The speed of sound is not constant with temperature. Generally speaking, the greater the temperature, the greater the speed of sound.

The approximate speed of sound in dry air at temperatures T near 0°C is calculated from:

$\displaystyle v_{\mathrm {s} }=(331.3+0.606\cdot T )~~~\mathrm {m/s}$

The air is at T=20°C, thus the speed of sound is:

$\displaystyle v_{\mathrm {s} }=(331.3+0.606\cdot 20 )~~~\mathrm {m/s}$

$v_{\mathrm {s} }=343.42\ m/s$

The speed of sound at 20°C is 343.42 m/s.

To calculate the time to hear the sound after the batter hits the ball, we use the formula of constant speed motion:

$\displaystyle v=\frac{d}{t}$

Where d is the distance and t is the time. Solving for t:

$\displaystyle t=\frac{d}{v}$

Substituting the values v=343.42 m/s and d=600 m:

$\displaystyle t=\frac{600}{343.42}$

t = 1.75 s

You have to wait 1.75 seconds to hear the sound of the bat hitting the ball

6 0

3 years ago