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2 years ago

Which equations have no solution? Check all that apply.

Mathematics

1 answer:

masya89 [10]2 years ago

4 0

Answer:

|x| = –15

– |–x| = 9

– |x| = 12

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What is the axis of symmetry of the function f(x)=-(x+9)(x-21)

Firlakuza [10]

Carry out the mult.: f(x) = -[x^2 - 21x + 9x - 189]

Combine like terms: f(x) = -[x^2 - 12x - 189]
Eliminate the brackets [ ]: f(x) = -x^2 + 12x + 189
Identify coefficients a, b and c: a= -1, b=12, c=189

The equation of the axis of symmetry is x = -b/(2a), which here equals

x = -(12)/[2(-1)], or x = 6

This is also the x-coordinate of the vertex. Plug x=6 into the original equation to calculate the y-coordinate.

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3 years ago

EASY PLZ HELP! Solve for x. (Show your work) 2x + 3 > 5

m_a_m_a [10]

Hi there!

Answer:

X>1

*The answer must have a positive sign and greater than symbol.*

Step-by-step explanation:

First, you subtract by 3 from both sides of an equation.

$2x+3-3>5-3$

Then, you subtract by the numbers from left to right.

$5-3=2$

$2x>2$

You can also divide by 2 from both sides of an equation.

$\frac{2x}{2}>\frac{2}{2}$

Finally, you divide by the numbers from left to right.

$2/2=1$

Final answer is x>1

I hope this helps you!

Have a nice day! :)

-Charlie

Thank you so much! :)

8 0

3 years ago

Read 2 more answers

Whats the gcf for 10y5+30y3-15y

Nataly [62]

Answer:

1, see the picture below, I used a calculator!

I hope this helps!!

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3 years ago

What is the measure of an angle that is it’s own complement ?

ValentinkaMS [17]

A complement is angle that can be added to another to equal 90 degrees.

So two times the same number would equal 90.

90 / 2 = 45

The angle that is its own complement is 45 degrees.

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3 years ago

PLEASE ANSWER!!

ohaa [14]

Answer: 5 games

Step-by-step explanation: They need to win half their games for a .500 record and half or 30 is 15. They already won 10 so they need to win 15- 10 = 5 more games to have a .500 record.

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2 years ago