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4 years ago

1/6 + (-2/3)=? Please Help Me I'll Make you brainliest and thank you.

Mathematics

1 answer:

Katen [24]4 years ago

5 0

Answer:

- 1/2

Step-by-step explanation:

Positive negative gives negative. So the expression becomes 1/6 - 2/3

Find the LCM of the denominators.

The LCM = 6

Now divide the Denominators by the LCM and multiply the results by the numerators . The LCM becomes the denominator of the results.

When you do so , you’ll arrive at

1 - 4 /6

-3/6 = -1/2

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An equation of the line that passes through the point (0, -1) and whose slope is 2 is

BARSIC [14]

I believe that it is y=2x-1

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3 years ago

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Two straight lengths of wire are placed on the ground, forming vertical angles. If the measure of one of the angles formed is 72

lord [1]

One of the other angles is 72. Vertically opposite angles are equal.

Two angles that are side by side on this arrangement are supplementary.

That means they are to 180

x + 72 = 180

x = 180 - 72

x = 108

Answer

the for angles are

72 + 72 + 108 + 108

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3 years ago

Work out x when the area is root 4 2^2 and angle C is 45 and ab are (x+2)(2x-3)

aleksandrvk [35]

Answer:

x = 2.41

Step-by-step explanation:

Area formula:

A = 1/2bh

The height is:

h = (x + 2)sin 45° = √2(x + 2)/2

Substitute the area value an set an equation:

4√2 = (2x - 3)√2(x + 2)/2
(2x - 3)(x + 2) = 8
2x² + x - 6 = 8
2x² + x - 14 = 0
D = 1 + 4*2*14 = 113
x = (-1 + √113)/4 = 2.41 (rounded)

Note. the second root ignored as negative

7 0

2 years ago

A sphere has center (0,0,0) and a radius of 5. Which of the following points lie on the sphere?

Colt1911 [192]

Since the sphere is located at the center and has radius 5.
Out of the following given points,
(5,5,-5) will lie on the sphere, where x and y coordinates will be positive and z coordinate will be negative.
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7 0

3 years ago

paul is diving and is 3.5 feet below sea level. he is descending at a rate of 0.5 feet per minute. if paul is now at 12 feet how

andrezito [222]

Answer:

He has been diving for 17 minutes

Step-by-step explanation:

* Lets explain how to solve the problem

- Paul is diving and is 3.5 feet below sea level

- He is descending at a rate of 0.5 feet per minute

- Paul is now at 12 feet

∵ His initial position is at 3.5 feet below the sea

∵ He is descending, that means he is moving down

∵ His final position is at 12

∴ He is descending a distance = 12 - 3.5 = 8.5 feet

∵ He is descending at a rate of 0.5 feet per minute

∵ He is descending 8.5 feet

∵ Time = distance ÷ rate

∴ His time of descending = 8.5 ÷ 0.5 = 17 minutes

* He has been diving for 17 minutes

5 0

3 years ago