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3 years ago

HELPPPPP plssssssssss

Mathematics

2 answers:

Anna007 [38]3 years ago

4 0

do you even put attention in class or the teacher not showing shi but alright the answer is x=0

RoseWind [281]3 years ago

3 0

The answer is x=0 this was really easy but I understand it’s kinda hard at the same time! hope the answer is right

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Which is equivalent to 8−+3

Natalija [7]

Answer: -5 + 0

Step-by-step explanation:

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4 years ago

Help Me! I suck with vectors.<br> Look at the attached pictures for the problem.

Westkost [7]

Multiplying a vector $x$ by a constant $k$ gives you a new vector whose components are the same as $x$ , but scaled by $k$ :

$x=\langle x_1,x_2\rangle\implies x=\langle kx_1,kx_2\rangle$

So we have

$u=\langle5,-7\rangle\implies-6u=\langle-30,42\rangle$

$v=\langle-11,3\rangle\implies2v=\langle-22,6\rangle$

Vector addition is just a matter of adding the corresponding components together:

$x=\langle x_1,x_2\rangle,y=\langle y_1,y_2\rangle\implies x+y=\langle x_1+y_1,x_2+y_2\rangle$

Then

$2v-6u=\langle-22,6\rangle+\langle-30,42\rangle=\langle-22-30,6+42\rangle$

$\implies\boxed{2v-6u=\langle-52,48\rangle}$

$\|x\|$ denotes the norm/magnitude of the vector $x$ :

$x=\langle x_1,x_2\rangle\implies\|x\|=\sqrt{{x_1}^2+{x_2}^2}$

We have

$\|2v-6u\|=\sqrt{(-52)^2+48^2}=4\sqrt{313}$

$\implies\boxed{\|2v-6u\|\approx70.77}$

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4 years ago

What is -4 2/3 as a decimal with work

Luba_88 [7]

The decimal equivalent is -4.666....

In order to find this, we need to start by just taking the whole number for itself.

-4.

Now we have to handle the fraction version. In order to do that, we need to do the division and turn into a decimal.

2/3 = .666...

Now we simply put them together and get our answer.

-4.666...

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4 years ago

Which component of a stable ecosystem can not be recycled?

Bas_tet [7]

C) energy is the answer

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3 years ago

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soldier1979 [14.2K]

Answer:

Step-by-step explanation:

sin (330)

-4 cot

(-45)

csc (60)

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3 years ago

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