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2 years ago

The equation of a line is -2x+5t=-20 what is the x-intercept of the line?

Mathematics

1 answer:

vampirchik [111]2 years ago

8 0

The x intercept of the line is at x = 10.

The x intercept is always the value of x when all other values are equal to 0. So in this case, we put 0 in for t and then solve.

-2x + 5t = -20

-2x + 5(0) = -20

-2x = -20

x = 10

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Approximate the distance between (-1, -3) and (1, 3) to the nearest tenth

jasenka [17]

Answer: The distance or d = 6.324555

For:

(X1, Y1) = (-1, -3)

(X2, Y2) = (1, 3)

Step-by-step explanation:

Distance Equation Solution: This picture of the work out problem will show you how you would work it out.

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2 years ago

The radius of a circle is 13miles. what is the area of a sector bounded by a 20 degree arc

Stolb23 [73]

Answer:

Area of the sector = 29.48 square miles.

Step-by-step explanation:

Given:

Radius of a circle = 13 miles

Angle bounded by the arc = 20 deg

To find

Area of the sector bounded by 20 degrees.

Note: Area of a sector = $\frac{(\theta)}{360}\times \pi\times r^2$

Plugging the values in the equation.

⇒ $\frac{(\theta)}{360}\times \pi\times r^2$

⇒ $(\frac{20}{360})\times 3.14\times 13^2$

⇒ $29.48$ square-miles

So the area of the sector bounded by 20 degree arc is 29.48 square miles.

5 0

3 years ago

X^2 + y^2 = 25 <br> x^2 + y^2 = 19

olga55 [171]

What do you need help on.

7 0

3 years ago

A pencil is 7 1/2 inches long. How long is the pencil in centimeters?

svetoff [14.1K]

The pencil is 19.05 centimeters.

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1 year ago

Identify all solutions for a triangle with A = 38 degrees b = 10, and a= 8. Round to the nearest tenth.

rjkz [21]

Answer:

A = 38°

B = 50.32°

C = 91.68°

a = 8

b = 10

c = 12.77

Step-by-step explanation:

The first thing is to find the angle B, like this:

sin B = b * sin A / a = 10 * sin (38 °) / 8

sin B = 0.77

B = arc sin (0.77)

B = 50.32 °

For angle C, it would be:

C = 180 - 38 - 50.32

C = 91.68 °

Side c, we calculate it like this:

c = a * sin C / sin A = 8 * sin (91.68 °) / sin (38 °)

c = 12.77

5 0

3 years ago