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3 years ago

Can i please get help with this

Mathematics

2 answers:

KonstantinChe [14]3 years ago

4 0

Answer:

Step-by-step explanation:

I did this question in school

photoshop1234 [79]3 years ago

3 0

Answer:

geometric, explict

i think.

Step-by-step explanation:

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Given two functions f(x)=2x+4 and g(x)=−1/5x−3 , what is the function rule for (f+g)(x) ?

Angelina_Jolie [31]

The definition is pretty simple:

$(f+g)(x) = f(x)+g(x)$

So, we only have to sum the expressions:

$f(x)+g(x) = 2x+4 - \dfrac{1}{5}x-3 = \dfrac{9}{5}x+1$

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3 years ago

Given that ∠2 ≅ ∠6.

insens350 [35]

Answer:

Converse of the alternate exterior angle theorem

Step-by-step explanation:

just took the test ;)

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3 years ago

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Use 3.14 for r. Round your answers to

galben [10]

Answer:

I think its A........ I don't really know.

Step-by-step explanation:

5 x 2 = 10

3.14 x 10 = 31.4

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3 years ago

-34 + 91 = -3 (4x + 1) + 6x

ra1l [238]

$-34 + 91 = -3(4x+1) + 6x\\57 = -12x - 3 + 6x\\6x = -60\\x= -10\\$

Thus x = -10.

Hope that helps!

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3 years ago

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Question 8 Find the unit vector in the direction of (2,-3). Write your answer in component form. Do not approximate any numbers

slamgirl [31]

Answer:

The unit vector in component form is $\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$ or $\hat{u} = \frac{2}{\sqrt{13}}\,i-\frac{3}{13}\,j$ .

Step-by-step explanation:

Let be $\vec u = (2,-3)$ , its unit vector is determined by following expression:

$\hat {u} = \frac{\vec u}{\|\vec u \|}$

Where $\|\vec u \|$ is the norm of $\vec u$ , which is found by Pythagorean Theorem:

$\|\vec u\|=\sqrt{2^{2}+(-3)^{2}}$

$\|\vec u\| = \sqrt{13}$

Then, the unit vector is:

$\hat{u} = \frac{1}{\sqrt{13}} \cdot (2,-3)$

$\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$

The unit vector in component form is $\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$ or $\hat{u} = \frac{2}{\sqrt{13}}\,i-\frac{3}{13}\,j$ .

6 0

3 years ago