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3 years ago

PLZ HELP

Mathematics

1 answer:

SVEN [57.7K]3 years ago

3 0

Answer:

This is the answer, dont forget to change the wording or you'll get a plagiarism strike.

Step-by-step explanation:

You might be interested in

The two triangles are similar.

igor_vitrenko [27]

Answer:

x = 10

Step-by-step explanation:

<u>The ratio of corresponding sides of similar figures is same:</u>

3x/20 = (4x + 2)/(20 + 8)
3x/20 = (2x + 1) / 14
3x(14) = (2x + 1)(20)
42x = 40x + 20
2x = 20
x = 10

6 0

3 years ago

Step 3: Construct an angle and a perpendicular bisector.

Yuliya22 [10]

Answer:

huh

Step-by-step explanation:

5 0

2 years ago

American Airlines charges $270 for a flight to Denver and $50 for each piece of luggage. Delta Airlines charges $330 for a fligh

amm1812

Answer:

J; 250 + 50x > 330 + 30x

Step-by-step explanation:

Since we don't have to worry about formatting the numbers to slope-intercept form, we can start the process of elimination.

First, we can disregard G and H because both have the x in the wrong place:

—> F 270 + 50x ≥ 330 + 30x

—> G 270x + 50 > 330x + 30

—> H 270x + 50 < 330x +30

—> J 270 + 50x > 330 + 30x

We're looking for <em>270 + 50x > 330 + 30x</em>.

Next, we determine which symbols are correct. Since the question is only asking for when American Airlines would be more expensive, not when it would be just as much or more, we can get rid of F.

—> F 270 + 50x ≥ 330 + 30x

—> J 270 +50x > 330 + 30x

We finally have our answer, J.

5 0

3 years ago

The axis of a great circle of a sphere is 24 inches. If its radius is 9 inches, how far is the plane of a section from the cente

Blababa [14]

A great circle is a section of a sphere that passes through its center. If the earth were a sphere, a great circle would be the equator and its axis would be the line connecting the geographic north and south pole. The length of the axis is then equal to the diameter of the sphere. For this problem, the radius of the sphere is 12 inches. A section is formed by slicing through the sphere and all sections of a sphere are circles. Considering the plane to be cut above and parallel with the equator (which is a great circle), the distance of the plane from the center of the sphere would then be the distance between the centers of the sphere and section. It is also given that the radius of the section is 9 inches. A right triangle is formed by connecting the center of the sphere, an edge of the section, and back to the center of the sphere whose hypotenuse is 12 inches (radius of the sphere), one leg is the 9 inches (radius of the section), and another leg is the distance of the plane from the sphere's center. Thus, the distance can be calculated using the Pythagorean theorem, d = sqrt(12^2 - 9^2) = sqrt(144 - 81) = sqrt(63) = 3*sqrt(7).

I hope my answer has come to your help. Thank you for posting your question here in Brainly.

6 0

3 years ago

What is the discriminant of the polynomial below 4x^2-20x +25

svetlana [45]

Answer:

The discriminant D=0

Step-by-step explanation:

For the duadratic polynomial $ax^2+bx+c$ the discriminant is