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3 years ago

If tan 0 = -2.5, then cot 0 = = ?

Mathematics

1 answer:

trapecia [35]3 years ago

4 0

The answer shld be 0.99

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Slick Slack is a downloadable app that can be used to automatically generate excuses for being late to work based on the weather

Greeley [361]

Answer:

$(x_1,y_1) = (1,5840)$

$(x_2,y_2) = (2,13090)$

$y = 1812.5x + 4027.5$

$y_0 = 4027.5$ --- y intercept

Step-by-step explanation:

Given:

x = weeks; y = copies

The right parameters are:

After 1 week, 5840 copies were downloaded

After 5 weeks, 13090 copies were downloaded

So, the (x,y) forms are:

$(x_1,y_1) = (1,5840)$

$(x_2,y_2) = (5,13090)$

Next, we calculate the slope (m) using:

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$m = \frac{13090 - 5840}{5 - 1}$

$m = \frac{7250}{4}$

$m = 1812.5$

The equation is then calculated using:

$y = m(x - x_1) + y_1$

$y = 1812.5(x - 1) + 5840$

$y = 1812.5x - 1812.5 + 5840$

$y = 1812.5x + 4027.5$

To calculate the y intercept, substitute 0 for x

$y_0 = 1812.5*0 + 4027.5$

$y_0 = 0 + 4027.5$

$y_0 = 4027.5$

7 0

2 years ago

Two trains leave stations 360 miles apart at the same time and travel toward each other. One train travels at 70 miles per hour

cricket20 [7]

S=d/t   ⇒d=s*t
s=speed
d=distance
t=time

The first train :
d=x

x=70 miles/h*t   ⇒ x=70t (1)

The second train
d=360 miles - x

360 miles - x=80 miles/h*t ⇒360-x=80t   ⇒ x=360-80t (2)

therefore, with the equations (1) and (2) we have a systeme of equations:

x=70t
x=360-80t

we can solve this system of equations by equalization method.

70t=360-80t
70t+80t=360
150t=360
t=360/150=2.4 (≈2 hour 24 minutes)

Answer: the first train meet with the second train in 2 hour 24 minutes.

3 0

3 years ago

Read 2 more answers

I need help on dignostic

Aleksandr-060686 [28]

Answer:

1 1/2

Step-by-step explanation:

7 0

2 years ago

Find the mean, median, and mode of the data set. Round to the nearest tenth. test scores on a math exam:

irinina [24]