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2 years ago

SOMEONE PLEASE ANSWER WITH WORK I WILL GOVE BRAINLIEST

Mathematics

1 answer:

Ira Lisetskai [31]2 years ago

5 0

Answer: what grade are you in

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Step-by-step explanation:

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How many square feet are in 14 square yards?

Finger [1]

There are 3 feet in a yard, this means we must mutlpie 14 by 3.

14 by 3 is 42.

There are 42 feet in 14 yards.

The other person's answer is incorrect.

I Hope This Helps !! And Good Luck On Your Assignment

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1 year ago

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2 years ago

Read 2 more answers

Precal help if you could could you answer both. Me finishing this helps me graduate.

oee [108]

Exercise 1:

The easiest way to compute powers of complex numbers is to write them in the form

$z = \rho e^{i\theta} = \rho(\cos(\theta)+i\sin(\theta))$

In this form, you have

$z^n = \rho^n e^{in\theta} = \rho^n(\cos(n\theta)+i\sin(n\theta))$

The magnitude of the number is given by

$z=a+bi \implies \rho = \sqrt{a^2+b^2}$

So, we have

$z=-1+\sqrt{3}i \implies \rho = \sqrt{1+3}=2$

As for the angle, we have

$z=a+bi \implies \theta = \text{atan2}\dfrac{b}{a}$

So, we have

$z=-1+\sqrt{3}i \implies \theta = \text{atan2}\left(\dfrac{-\sqrt{3}}{-1}\right) = -\dfrac{2\pi}{3}$

Finally,

$z=-1-\sqrt{3}i = 2\left(\cos\left( -\dfrac{2\pi}{3}\right) + i\sin\left( -\dfrac{2\pi}{3}\right)\right) \implies z^6 = 2^6\left(\cos\left( -4\pi\right) + i\sin\left(-4\pi\right)\right) = 64$

Exercise 2:

You simply have to compute the trigonometric function:

$\cos\left(-\dfrac{\pi}{4}\right) = \dfrac{\sqrt{2}}{2},\quad \sin\left(-\dfrac{\pi}{4}\right) = -\dfrac{\sqrt{2}}{2}$

So, we have

$z = \sqrt{2}\left(\dfrac{\sqrt{2}}{2} - i\dfrac{\sqrt{2}}{2}\right) = 1-i$

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2 years ago

Find the truth value of (p ^ q) v r. (Make a truth table.)

alexgriva [62]

Answer:

p: (-4)2 > 0

q: An isosceles triangle has two congruent sides.

r: Two angles, whose measure have a sum of 90, are supplements.

Step-by-step explanation:

p: (-4)2 > 0

q: An isosceles triangle has two congruent sides.

r: Two angles, whose measure have a sum of 90, are supplements.

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3 years ago

The bat population in a certain Midwestern county was 270,000 in 2012, and the observed doubling time for the population is 34 y

Lena [83]

What’s the question?

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2 years ago