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3 years ago

NEed help on this Question

Mathematics

1 answer:

Vladimir79 [104]3 years ago

6 0

Answer: 27

Step-by-step explanation:

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How do you solve 8a squared plus 2 = 634

Inga [223]

Answer:

a ≈ 8.9

Step-by-step explanation:

Set up the equation as so:

8a^2 + 2 = 634

First, subtract two from both sides:

8a^2 = 632

Then, divide by 8 to further isolate the variable.

a^2 = 79

To get rid of the squared, you have to take the square root of both sides. The square root of 79 is roughly 8.9. Ergo, a ≈ 8.9

8 0

3 years ago

Find the domain of the function algebraically:<br><br> <img src="https://tex.z-dn.net/?f=R%28x%29%3D%5Cfrac%7Bx%7D%7Bx%5E%7B2%7D

BigorU [14]

The domain of the function is all real numbers except 2 and -1

Step-by-step explanation:

Domain is the set of inputs of a function on which the function is defined.

Given function is:

$R(x) = \frac{x}{x^2-x-2}$

In case of a function involving fraction, the function is undefined if the denominator is zero so in order to find the domain of the function algebraically , we have to find the values on which the function will be undefined

$x^2-x-2 = 0\\x^2-2x+x-2 = 0\\x(x-2)+1(x-2) = 0\\(x+1)(x-2) = 0\\x+1 = 0 => x=-1\\x-2=0 = > x=2$

The function will be undefined on x=-1 and x=2

So,

The domain of the function is all real numbers except 2 and -1

Keywords: Domain, functions

Learn more about domain and functions at:

#LearnwithBrainly

7 0

4 years ago

Emma has 18 yellow flowers and 30 white flowers she wants to split them into vases in equal groups what is the largest number of

Julli [10]

6, it’s because 6x5=30 6x3=18.

3 0

3 years ago

Substitution system of equations <br><br> How do I solve this?

Fantom [35]

Answer:

x=-6

Y=4

Step-by-step explanation:

7 0

3 years ago

What is the slope of the line that contains the points (-2,7) and (2,3)

Ludmilka [50]

The formula for slope is

$\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

In this case...

$y_{2} =3\\y_{1} =7\\x_{2} =2\\x_{1} =-2$

^^^Plug these numbers into the formula for slope...

$\frac{3-7}{2 - (-2)}$

$\frac{-4}{4}$ -------------------> Simplifies to -1

^^^This is your slope

Hope this helped!

~Just a girl in love with Shawn Mendes

4 0

3 years ago

Read 2 more answers