3 years ago

The equation of a line is x+y=14. What is the y-intercept of the line?

Mathematics

1 answer:

bogdanovich [222]3 years ago

6 0

The answer is 14 because when it is plugged in it (0,14)

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Robert works in a toll booth. About 18 to 23 cars pass through Robert's booth every 23 minutes. Which is a reasonable estimate f

BARSIC [14]

A reasonable number between 18 and 23 is 20. 69 minutes is 3 times 23 minutes, so we multiply the 20 by 3, getting an estimate of 60 cars.

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3 years ago

Find [5(cos 330 degrees + I sin 330 degrees)]^3

earnstyle [38]

Given a complex number in the form:
$z= \rho [\cos \theta + i \sin \theta]$
The nth-power of this number, $z^n$ , can be calculated as follows:

- the modulus of $z^n$ is equal to the nth-power of the modulus of z, while the angle of $z^n$ is equal to n multiplied the angle of z, so:
$z^n = \rho^n [\cos n\theta + i \sin n\theta ]$
In our case, n=3, so $z^3$ is equal to
$z^3 = \rho^3 [\cos 3 \theta + i \sin 3 \theta ] = (5^3) [\cos (3 \cdot 330^{\circ}) + i \sin (3 \cdot 330^{\circ}) ]$ (1)
And since
$3 \cdot 330^{\circ} = 990^{\circ} = 2\pi +270^{\circ}$
and both sine and cosine are periodic in $2 \pi$ , (1) becomes
$z^3 = 125 [\cos 270^{\circ} + i \sin 270^{\circ} ]$

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3 years ago

Help me pls i dont have long i have 10 mins this is 1 of 2 questions can you pls answer both ill give brainly when 2 answers are

astraxan [27]

I’ll help you with your math I am very good at it

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3 years ago

Read 2 more answers

Sam is keeping track of the distances at a long jump competition. The jumper from East side High jumped 7.85 meters. The jumper

nataly862011 [7]

The answer is A)Eastside High

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