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3 years ago

Someone help please hurry !!! ASAP

Mathematics

2 answers:

geniusboy [140]3 years ago

7 0

Answer:

it's -4

Step-by-step explanation:

hope it helped!!!!!!

astra-53 [7]3 years ago

3 0

Answer:

-4

Step-by-step explanation:

The answer will be the same as a positive square root, just add a negative.

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What is an equation in slope-intercept form for the line that passes through the points (1, -3) and (3,1)

DedPeter [7]

The last one y=2x-5 if you plug the points into the x and y values you can see this equation works for both points.

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2 years ago

Got them.... I think the war is finally over..

lisabon 2012 [21]

Answer:

LOL THAT CAT POOR CAT

Step-by-step explanation:

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3 years ago

I need help asap pls

Tema [17]

If Michael is bike riding at a speed of 4 miles an hour you would multiply 4 miles by the hour

So it would be x times y
0x4=0
1x4=4
2x4=8
3x4=12
4x4=16
5x4=20
9x4=36
1/2x4=2

5 0

3 years ago

Read 2 more answers

Convert,the complex number into polar form: 4+4i

kow [346]

Z = a + bi
z = 4 + 4i

r² = a² + b²
r² = (4)² + (4)²
r² = 16 + 16
r² = 32
r = 4√(2)
r = 4(1.414)
r = 5.656

$cos\theta = \frac{a}{r}$
$cos\theta = \frac{4}{4\sqrt{2}}$
$cos\theta = \frac{4}{4\sqrt{2}} * \frac{\sqrt{2}}{\sqrt{2}}$
$cos\theta = \frac{4\sqrt{2}}{4\sqrt{4}}$
$cos\theta = \frac{4\sqrt{2}}{4(2)}$
$cos\theta = \frac{4\sqrt{2}}{8}$
$cos\theta = \frac{\sqrt{2}}{2}$
$2(cos\theta) = 2(\frac{\sqrt{2}}{2})$
$2cos\theta = \sqrt{2}$
$2cos\theta = 1.414$

$sin\theta = \frac{b}{r}$
$sin\theta = \frac{4}{4\sqrt{2}}$
$sin\theta = \frac{4}{4\sqrt{2}} * \frac{\sqrt{2}}{\sqrt{2}}$
$sin\theta = \frac{4\sqrt{2}}{4\sqrt{4}}$
$sin\theta = \frac{4\sqrt{2}}{4(2)}$
$sin\theta = \frac{4\sqrt{2}}{8}$
$sin\theta = \frac{\sqrt{2}}{2}$
$2(sin\theta) = 2(\frac{\sqrt{2}}{2})$
$2sin\theta = \sqrt{2}$
$2sin\theta = 1.414$

z = a + bi
z = rcosθ + (rsinθ)i
z = r(cosθ + i sinθ)

z = 4 + 4i
z = 5.656cosθ + (5.656sinθ)i
z = 5.656(cosθ + i sinθ)
z = 5.656(cos45 + i sin45)

$\theta = tan^{-1}\frac{b}{a}$
$\theta = tan^{-1}\frac{4}{4}$
$\theta = tan^{-1}(1)$
$\theta = 45$

The polar form of 4 + 4i is approximately equal to 5.656(cos45 + i sin45).

5 0

3 years ago

11/25x-7/25= what is the answer

natka813 [3]

Answer:

−7

Step-by-step explanation:

8 0

3 years ago