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Alexeev081 [22]

3 years ago

8

If you minus a positive number from a negative number is the diffirance a positive number, or a negative number? For example: 5

- ( -2 ) would this problem be positive negative. Also would you add or subtract because there is an negative number?

1 answer:

Reika [66]3 years ago

3 0

Answer:

positive + positive is negative

negative+ positive = negative ii think

Step-by-step explanation:

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Write an algebraic expression for<br> three times a number plus 15

photoshop1234 [79]

Answer:

3x+15

Step-by-step explanation:

6 0

3 years ago

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4 years ago

One angle of a triangle is 30° more than the smallest angle. The largest angle is the sum of the other angles. Find the measures

vladimir1956 [14]

Answer: $\boxed{30^{\circ}, 60^{\circ}, 90^{\circ}}$

Step-by-step explanation:

Let the smallest angle be x.

Then, the middle angle is x+30.

The largest angle is 2x+30.

Angles in a triangle add to 180 degrees, so:

$x+x+30+2x+30=180\\\\4x+60=180\\\\4x=120\\\\x=30$

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6 0

2 years ago

Find the value of x and the measure of each angle:

LUCKY_DIMON [66]

Answer:

x = 9

∠M = 85°

∠N = 85°

Step-by-step explanation:

360 = 95 + 95 + (10x-5) + (8x + 13)

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6 0

3 years ago

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12. Find the height of the cone shown below if the volume is 3.6 cubic inches. Round your answer to the nearest tenth.

professor190 [17]

Answer:

h = 1.34 inches

Step-by-step explanation:

Given that,

The volume of cone, V = 3.6 cubic inches

Let the radius of cone is, r = 1.6 inches

We need to find the height of the cone. The formula for the volume of a cone is given by :

$V=\dfrac{1}{3}\pi r^2 h\\\\h=\dfrac{3V}{\pi r^2}\\\\h=\dfrac{3\times 3.6}{\pi \times 1.6^2}$

h = 1.34 inches

So, the height of the cone is equal to 1.34 inches.

5 0

3 years ago