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3 years ago

Help with 21 please i’ll give extra points

Mathematics

2 answers:

kozerog [31]3 years ago

6 0

Answer:

C or B

Step-by-step explanation:

Im pretty sure its B

Mazyrski [523]3 years ago

4 0

The correct answer is c. when Columbus discovered the new world, he used African people to help with labor since the natives were dying off from diseases him and his crew brought with them. Advanced weaponry and others already forming colonies would have made them extra hungry to go to africa and gain as much land as they could as soon as possible.

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Why don't parallel lines exist in elliptical geometry?

tiny-mole [99]

Parallel lines don't exist in elliptical geometry because elliptic geometry, a special case of Riemannian Geometry, is a non Euclidean geometry, in which, given a line L and a point P outside L, there exists no parallel lines because all the elliptical lines intersect.

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3 years ago

Two sides of a triangle measure 2x – 4 and 7x – 2 units, respectively. Which of these is a possible length for the third side of

Fynjy0 [20]

Answer:

Step-by-step explanation:

Given two sides of a triangle 2x – 4 and 7x – 2 units.

Difference of two sides of a triangle is less than third side.

Let us find the difference of 7x – 2 and 2x – 4, we get

7x-2 - (2x-4) = 7x -2 -2x +4

= 5x + 2.

Third side should be less then 5x+2, so 5x+2 can't be third side.

Sum of two sides is greater than third side.

Adding given sides of triangle, we get

7x-2 +2x-4 = 9x - 6.

Third side should be greater than 9x-6. So, 9x-6 can't be third side.

Now, if we add 3x and 2x-4, we get

3x+2x-4 = 5x-4, which is less than 9x - 6.

So, 3x can't be third side.

Therefore, correct option is :

3 0

3 years ago

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A homeowner is building a circular fire pit in his backyard. He plans to outline the pit with bricks and cover the space inside

sergiy2304 [10]

Answer:

Exact Circumference = 3π feet

Approximate Circumference = 9.42 feet

Exact Area = 2.25 π ft²

Approximate Area = 7.07 ft²

Step-by-step explanation:

Diameter = d = 3 feet

Radius = r = 1.5 feet

Circumference:

Outline of the pit is the circumference.

=> Circumference = $\pi d$

Where d = 3 feet

=> Exact Circumference = 3π feet

=> Approximate Circumference = 9.42 feet

Area:

Area of Circle = πr²

Area = π(1.5)²

Exact Area = 2.25 π ft²

Approximate Area = 7.07 ft²

8 0

3 years ago

How do I solve this?

crimeas [40]

Answer:

The final answer is (2,-1)

(also idek what I did in the photo but I'm positive the answer is (2,-1)

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3 years ago

A ball was kicked into the air from a balcony 20

Ainat [17]

Max ht is at the vertex of the parabola, at t = -b/2a
t = -32/-32 = 1
h(1) = -16 + 32 + 20
= 36 feet
hope this helps

5 0

4 years ago

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