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3 years ago

What is an angle that is formed by two non coplanar half planes and their line of intersection?

1 answer:

8 0

The answer is dihedral angle. It is the angle between two planes that intersected. It can be used in chemistry also in which it is the angles between two bonds and also in aerodynamics in which it is the upward angle that the wings are contacting with.

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Two cars leave the same place at the same time, but drive in opposite directions along a straight road. one car averages 35 mi/h

Goshia [24]

As we do not know the other cars avg speed we can not tell the answer. Please repeat the question.

6 0

3 years ago

Divide using synthetic division. ( x^4-12x^2-9)/(x+3)

Firdavs [7]

Answer:

x^3 - 3x^2 - 3x + 9 + (-36/(x+3))

x^3 - 3x^2 - 3x + 9 - (36/(x+3))

Step-by-step explanation:

First set the divisor equal to 0:

x + 3 = 0

Subtract 3 from both sides

x = -3

This is what you'll divide the dividend by in synthetic division.

Take the coefficents of each term in the dividend. Do not forget the 0 placeholders:

x^4 + 0x^3 - 12x^2 + 0x -9

Coefficents: 1. 0. -12. 0 -9.

Please see the image for the next steps.

The remainder is -36. Put the remainder over the divisor and add it to the polynomial (shown in image)

-36/(x+3)

6 0

2 years ago

Suppose that y varies directly as the square of x, and that y=567 when x=9. What is y when x=4

Gwar [14]

Answer:

y = 112

Step-by-step explanation:

If y varies directly as the square of x

mathematically;

y ∝ x²

y = kx² where 'k' is the constant of proportionality

let u know the value of k for this equation by making k the subject of the formular from y = kx²

divide both sides by x²

k = y / x²

given that y = 567 x = 9

k = 567/(9)²

k = 567/81

k = 7

now to get the value of y when x = 4

from the equation conneting x, y,

y = kx²

y = 7 × (4)²

y = 7 × 16

y = 112

6 0

2 years ago

Which of the following (-1,8) and (5,-2) are the distance of the line segment

olganol [36]

The formula of a distance between two points:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

We have the points (-1, 8) and (5, -2). Substitute:

$d=\sqrt{(5-(-1))^2+(-2-8)^2}=\sqrt{6^2+(-10)^2}=\sqrt{36+100}=\sqrt{136}\\\\=\sqrt{4\cdot34}=\sqrt4\cdot\sqrt{34}=\boxed{2\sqrt{34}}$

8 0

3 years ago

What’s the hundreds in a the number 44,813?

Aliun [14]

8 because it goes from 1s 10s 100s so 8 is the answer

5 0

2 years ago