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3 years ago

Y=x^2+8x+10 what does X=

1 answer:

6 0

For this problem you will need to use the quadratic formula. $x=\frac{-b+-\sqrt{b^2-4ac} }{2a}$ (the + and - are together. basically the plus is on top and the minus is on bottom. you should have seen it in your notes hopefully). a = 1, b = 8, and c = 10. from there you just plug everything in and solve.

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2x + y = −3 −2y = 6 + 4x Write each equation in slope-intercept form.

Zanzabum

slope intercept form is y=mx+b

so solve for y

2x+y=-3

minus 2x both sides

y=-2x-3

-2y=6+4x

divide both sides by -2

y=-3-2x

y=-2x-3

6 0

3 years ago

092:15 PMEach month, henry weeds gardens for 15 hours and mows lawns for x hours.For each job, he is paid $9 per hour. He wants

ankoles [38]

We know that he weeds gardens for 15 hours, and mows lawns for x hours.

If he wants to earn $252 per month, we can express the following

$9\cdot15+9x\ge252$

Now, we solve for x

$\begin{gathered} 135+9x\ge252 \\ 9x\ge252-135 \\ 9x\ge117 \\ x\ge\frac{117}{9} \\ x\ge13 \end{gathered}$ <h2>Hence, he has to mow lawns for 13 hours to earn at least $252.</h2>

6 0

2 years ago

Which of the following is the solution set of -21xl <-8

Norma-Jean [14]

Answer:

$x\:>\:4$ or $x\:$

Step-by-step explanation:

The given absolute value inequality is $-2|x|\:$

Divide both sides of the inequality by -2 and reverse the inequality sign:

$|x|\:>\:4$

By the definition of the absolute value function;

Either $x\:>\:4$ or $-x\:>\:4$

Divide through the rightmost inequality by -1 and reverse the sign.

This implies that:

$x\:>\:4$ or $x\:$

3 0

3 years ago

What is three million, seven hundred twenty four in number form

iris [78.8K]

The answer would be 3,000,724.

5 0

3 years ago

Read 2 more answers

Don’t understand this can someone help

pentagon [3]

1...
you need to find unknown measures in 1.ques. by using corresponding parts of similar triangle property..
THAT IS...
XY/PQ = YZ/QR =ZX/PR....
PUT VALUES IN THIS N SOLVE....

2....
use the property that ratio of corresponding sides of similar figures are equal....

HOPE IT HELPS YOU '_'

8 0

4 years ago

Read 2 more answers