2 years ago

Select all trips that would take 3 hours,

Mathematics

1 answer:

Leno4ka [110]2 years ago

7 0

Answer:

A and D

Step-by-step explanation:

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Find the x-values that are solutions of the equation 5cot^2x-15=0

julia-pushkina [17]

First solve for the trig function 'cot'
$cot^2 x = \frac{15}{5} = 3$

Next take the sqrt of both sides (include plus/minus)
$cot x = \pm \sqrt{3}$

Now take reciprocal of both sides, this will change trig function to 'tan'
(cot = 1/tan)

$tan x = \pm \frac{1}{\sqrt{3}} = \pm \frac{\sqrt{3}}{3}$

Finally use the unit circle or inverse tan on your calculator to find x.
There will be 4 solutions, one for each quadrant.

$x = \frac{\pi}{6}, \frac{5\pi}{6}, \frac{7\pi}{6}, \frac{11\pi}{6}$

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2 years ago

Three integers between -4 and 0

balu736 [363]

Integers between -4 and 0 are : -3, -2, and -1

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3 years ago

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Using d= rt, find r if d= 350 miles and t= 5 hours

lubasha [3.4K]

Answer:

70 miles /hour = r

Step-by-step explanation:

d=rt

Substitute d=350 miles and t = 5 hours

350 miles = r* 5 hours

Divide each side by 5 hours

350 miles = 5 hours = r

70 miles /hour = r

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2 years ago

What is the equation, in slope-intercept form, of the line that is parallel to the given line and passes through the point (0,

Mamont248 [21]

Answer:

y=-5x+12

Step-by-step explanation:

just use a graphing calculator and basic knowledge of slope intercept form

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2 years ago

the perimeter of a rectangular field is is 84m.If the width of the rectangle is 6m less than the length,then find the dimensions

Blizzard [7]

Answer:

**Solving Steps**

2 x (2 x X - 6) = 84

4x-12=84

84+12=96

96/4 = 24

Hope it helps.

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2 years ago