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2 years ago

What does one third equal

Mathematics

1 answer:

monitta2 years ago

5 0

Divide $\frac{1}{3}$ . 1÷3=0.33333333333333 $\frac{1}{3}$ equals 0.333333333333333

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When compared with the independent variable, how many of the graphs represent a linear relationship?

strojnjashka [21]

Since a slope differe, this is not linear relationship. Simply, if you connect all points on the graph, they will not lie on the same line. Two next graphs represent the linear relationships, so they represent the linear relationship.

8 0

2 years ago

The state of Texas gained its independence from

padilas [110]

It would be 2020-1836 = 184 years ago

3 0

2 years ago

(1+cos2x)/(1-cos2x) = cot^2x

sesenic [268]

We will turn the left side into the right side.

$\dfrac{1 + \cos 2x}{1 - \cos2x} = \cot^2 x$

Use the identity:

$\cos 2x = \cos^2 x - \sin^2 x$

$\dfrac{1 + \cos^2 x - \sin^2 x}{1 - ( \cos^2 x - \sin^2 x)} = \cot^2 x$

$\dfrac{1 - \sin^2 x + \cos^2 x }{1 - \cos^2 x + \sin^2 x} = \cot^2 x$

Now use the identity

$\sin^2 x + \cos^2 x = 1$ solved for sin^2 x and for cos^2 x.

$\dfrac{\cos^2 x + \cos^2 x }{\sin^2 x + \sin^2 x} = \cot^2 x$

$\dfrac{2\cos^2 x}{2\sin^2 x} = \cot^2 x$

$\dfrac{\cos^2 x}{\sin^2 x} = \cot^2 x$

$\cot^2 x = \cot^2 x$

8 0

2 years ago

it takes 40 minutes for 8 people to paint 4 walls. How many minutes does it take 10 people to paint 7 walls?

KIM [24]

First let's find the rate at which one person paint one wall. We know it takes 40 minutes for 8 people to paint 4 walls.

If we divide 40 minutes by 4 walls, we find that it takes 8 people 10 minutes to paint ONE wall. Next, we multiply 10 minutes per wall by 8 people to find how long it takes ONE person to paint ONE wall. Since it takes 8 people 10 minutes, reducing the number of people to one will increase the required time by a factor of 10. So it takes ONE person 80 minutes to paint ONE wall.

Now let's use this information to find out how long it takes 10 people to paint 7 walls. First, multiply 80 minutes by 7 since there are 7 times as much wall to paint. We now know that it takes 560 minutes for one person to paint 7 walls. Finally, divide 560 minutes by 10 people.

The answer is 56 minutes.

8 0

3 years ago

Can somebody help with this question

satela [25.4K]

Answer:

Step-by-step explanation:

Parallel lines have same slope.

Slope of the required line = 3/4

(-1,7)

Point slope form: y - y1 = m(x -x1)

$y - 7=\dfrac{3}{4}(x -[-1])\\\\\\y -7 =\dfrac{3}{4}(x+1)$

3 0

2 years ago