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2 years ago

PLEASE HELP ME there’s a photo:

Mathematics

2 answers:

Lilit [14]2 years ago

8 0

It's the first one, an algebraic expression contains variables

Nezavi [6.7K]2 years ago

6 0

I think the only statement that IS NOT true is the last one. See if this helps

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1) What is the difference between a number and its positive square root is 12. Find the number

hjlf

Answer:

algebra

Step-by-step explanation:

using algebra form an equation than solve for the variable keep in mind u have to square it

3 0

2 years ago

What is the domain of the relation?<br><br> Express your answer using inequalities.

son4ous [18]

Answer:

-6<x<0

- -

Step-by-step explanation:

make them less than or equal to signs, I don't know how to do that on a computer, I hope I am correct

point one on the left is -6, point 2 on the right is 0 (in terms of the x-axis, that's what domain is )

when there is arrows in the graph, the x/y is always in the middle.

Good luck! Hope I'm not late!

8 0

2 years ago

Read 2 more answers

Find the equation of a line perpendicular to y - 12 = 2x – 8 that passes through the point (2, 3). (answer in slope-intercept fo

Alla [95]

Answer:

$\displaystyle y=-\frac{1}{2}x+4$

Step-by-step explanation:

<u>Equation of a Line</u>

We can find the equation of a line by using two sets of data. It can be a pair of ordered pairs, or the slope and a point, or the slope and the y-intercept, or many other combinations of appropriate data.

We are given a line

$y - 12 = 2x -8$

And are required to find a line perpendicular to that line. Let's find the slope of the given line. Solving for y

$y = 2x +4$

The coefficient of the x is the slope

$m=2$

The slope of the perpendicular line is the negative reciprocal of m, thus

$\displaystyle m'=-\frac{1}{2}$

We know the second line passes through (2,3). That is enough information to find the second equation:

$y-y_o=m'(x-x_o)$

$\displaystyle y-3=-\frac{1}{2}(x-2)$

Operating

$\displaystyle y=-\frac{1}{2}(x-2)+3$

Simplifying

$\displaystyle y=-\frac{1}{2}x+4$

That is the equation in slope-intercept form. Intercept: y=4

8 0

2 years ago

Luke has a calculator that will only display number less than or equal to 999,999,999. Which of the following products will his

liq [111]

Answer:

≥ 999,999,999

Step-by-step explanation:

that is the less than or equal to sign

hope this helps

8 0

2 years ago

Tanji spends $8 on ride tickets ($1 each) and gives an equal number of tickets to 8 friends. How many tickets does each friend g

pshichka [43]

Because each ticket costs 1 and she spends 8 she would be buying 8 tickets

She has 8 friends so each one would get 1 ticket

The answer is 1

8 0

2 years ago

Read 2 more answers