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2 years ago

Tell whether the ordered pair is a solution of the linear system (-24,-10)

Mathematics

1 answer:

Dovator [93]2 years ago

8 0

Answer:

IT is not

Step-by-step explanation:

Let's replace. If it's a solution, it means that BOTH equations has to be true.

$\left \{ {{-10=-5(-24)+22} \atop {-2(-24) +6(-10)=-12} \right.$

Now, the second equations seems good - $48-60 =-12$ indeed.

First alas isn't. RHS is 142, which is totally not the same as -10.

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Debora [2.8K]

The first incorrect is the second step so choice B. ,bc. the exponents need assuming not multiply

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8 0

3 years ago

Need to find the direction angle for each vector. #10 and #12 please!

crimeas [40]

Answer:

10) - 45 degrees

12) 0 degrees

Step-by-step explanation:

10)

Find the x and y components that define the vector that joins C with D:

x-component: -4 - (-8) = - 4 + 8 = 4

y-component: 4 - 8 = -4

use the tangent function to find the angle $\theta$ :

$tan(\theta)=\frac{y-comp}{x-comp}=\frac{-4}{4} = -1\\\theta = -45^o$

12)

Find the x and y components that define the vector that joins A with B:

x-component: 7 - 4 = 3

y-component: - 1 - (-1) = -1 + 1 = 0

use the tangent function to find the angle $\theta$ :

$tan(\theta)=\frac{y-comp}{x-comp}=\frac{0}{3} = 0\\\theta = 0^o$

5 0

3 years ago

...

ICE Princess25 [194]

Answer:-5

Step-by-step explanation:

i could be wrong i used my calculator

4 0

3 years ago

Solve for X <br> PLEASE HELP ITS URGENT

almond37 [142]

With pythagorean theorem and working backwards, you do 8100-1225 to get 6875, you then get the square root of that to get x=82.91 or rounded to 82.92

6 0

3 years ago

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Check my short answer please?

sertanlavr [38]

Yes this seems about correct

3 0

3 years ago

Read 2 more answers