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3 years ago

Find the total travel time: Depart 5:30 pm MST Arrive 9:20 pm CST

Mathematics

1 answer:

Len [333]3 years ago

8 0

Answer:

2 hours 50 minutes

Step-by-step explanation:

Mountain Standard Time is 1 hour earlier than Central Standard Time, so the departure time is equivalent to 6:30 pm in CST.

The time between 6:30 pm and 9:20 pm is 2 hours 50 minutes.

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If 1 +2 is 21 and 2 + 3 is 36 what is 4 + 5

lara31 [8.8K]

4+5 would be 9 because you add 4 and 5

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3 years ago

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What is the slope of the line that passes through the points (1,7) and (-4,-8)?

Aleksandr [31]

Answer:

D. 3

Step-by-step explanation:

To find the slope of a line, we can use the equation y2-y1/x2-x1=m or slope.

All we can do now is insert the values of the points into the equation.

-8-7/-4-1=m

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Thus, the slope is 3.

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2 years ago

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The moon is a sphere with radius of 959 km. Determine an equation for the ellipse if the distance of the satellite from the surf

Sergeeva-Olga [200]

Answer:

$\frac{x^2}{1316^2}+\frac{y^2}{1669^2}=1$

Step-by-step explanation:

An ellipse is the locus of a point such that its distances from two fixed points, called foci, have a sum that is equal to a positive constant.

The equation of an ellipse with a center at the origin and the x axis as the minor axis is given by:

$\frac{x^2}{b^2}+\frac{y^2}{a^2} =1 \\\\where\ a>b$

Since the distance of the satellite from the surface of the moon varies from 357 km to 710 km, hence:

b = 357 km + 959 km = 1316 km

a = 710 km + 959 km = 1669 km

Therefore the equation of the ellipse is:

$\frac{x^2}{1316^2}+\frac{y^2}{1669^2}=1$

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3 years ago

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Murrr4er [49]

Answer:

$x = 4x - 8 - 3x + 8 = 0 \\ x = 4x - 3x - 8 + 8 = 0 \\ x = 0$

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Answer:

Step-by-step explanation:

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