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3 years ago

This is for today can someone help me!!!

Mathematics

2 answers:

liubo4ka [24]3 years ago

5 0

Answer:

14.

let me know if you want the steps

Elodia [21]3 years ago

3 0

14 shshsjdhdhdhdhdhxhxhxhxuysysgd

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Eli and molly are creating patterns Eli uses add 2 and starts at 1

Dmitry_Shevchenko [17]

Answer:

Thz qnszer is; "

Step-by-step explanation:

The zqy I got to this is; é+& = ":

4 0

3 years ago

Complex numbers & DeMoivre's theory If z=-1-√3 i and z^6=a+bi, a=_____ and b=_____

Mice21 [21]

Convert $z$ to exponential/polar/trigonometric form:

$r=|z|=\sqrt{(-1)^2+(-\sqrt 3)^2}=2$

$\tan\theta=\dfrac{-\sqrt3}{-1}\implies\theta=\dfrac{4\pi}3$

$\implies z=-1-\sqrt3\,i=2e^{4\pi/3\,i}=2\left(\cos\dfrac{4\pi}3+i\sin\dfrac{4\pi}3\right)$

By DeMoivre's theorem,

$z^6=\left(2e^{4\pi/3\,i}\right)^6=2^6e^{24\pi/3\,i}=64e^{8\pi\,i}$

$z^6=64\left(\cos8\pi+i\sin8\pi)=64$

so that $a=64$ and $b=0$ .

8 0

4 years ago

Which expression is equivalent to 5! 5^4*3^2 5-4-3-2-1 5.4.3-2.1 5+4+3+2+1 5.1

baherus [9]

The first one is like 5x5x5x5 which is 625 multiplied by 3x3 which is 9 and together the product will be 5,625.

The second one is 5-4 which is 1-3 which is -2 - 2 = -4 - 1 which is -5 so it’s not it because it’s the opposite of the number we need to find.

The third one is kind of messed up because there’s no such thing as 5.4.3 so sorry I can’t do that one.

The fourth one is 15 because you basically add the numbers up.

And the fifth is not 5. It’s 5.1 so that’s not it either.

So I’m sorry I can’t find the answer but at least I have you some background :/

6 0

3 years ago

I'll give more points here is what I need.

Serga [27]

Answer:

The answer to your question is x = 3; y = 3

Step-by-step explanation:

Data

angle = 45°

Opposite side = x

Adjacent side = y

hypotenuse = 3√2

To solve this problem, use trigonometric functions.

1) To find x, use the trigonometric function sine.

sin Ф = Opposite side / hypotenuse

-Solve for Opposite side (x)

Opposite side = hypotenuse x sin Ф

-Substitution

Opposite side = 3√2 sin 45

-Simplification

Opposite side = 3√2 (1 / √2)

Opposite side = 3(1)

-Result

x = 3

2) To find y use the trigonometric function cosine

cos Ф = Adjacent side / hypotenuse

-Solve for Adjacent side

Adjacent side = hypotenuse x cos Ф

-Substitution

Adjacent side = 3√2 x cos 45

-Simplification

Adjacent side = 3√2 x (1/√2)

Adjacent side = 3(1)

-Result

y = 3

5 0

3 years ago

The volume of a pyramid is 37cm3. Its base area is 6cm2. What is its height? Round your answer to the nearest tenth of a unit.

STALIN [3.7K]

Answer 3.1

Here's the formula:

V= $\frac{lwh}{3}$

H=3 $\frac{V}{lw}$

3 · $\frac{37}{6x6}$ ≈ 3.08333

rounded to : 3.1

(P.S. I also Used a calculator)

7 0

3 years ago