MATHEMATICS HIGH SCHOOL

For which function is the ordered pair (4, 12) not a solution?y = 3x
y = x + 8
y = 16 - x
y = 8 - x

Answers

Answer 1

Answer: It's D since 8 - 4 = 4, not 12.

Answer 2

Answer:

Answer:

Y=8-x

So the answer is in fact D.

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a college graduate expects to earn a salary of 50000 during the first year after graduation and recieive a 3% raise every year for 10 years

Answers

50,000(1.03)^10=Y is the equation you would use to solve this, and this is how to solve it:

50,000(1.03)^10
50,000(1.34)
67,000

so his salary after 10 years will be $67,000.00

9/x=32/56
Solve for z

Answers

Answer:

x = 15.75

Step-by-step explanation:

I'm going to assume you mean solve for x so:

$(9)/(x) =(32)/(56) \n\n32x=504\nx=15.75$

2 Sqrt5 + 3 sqrt8 equals ?

Answers

2 * Sqrt 5 = 4.4
Sqrt 5 = 2.2
3* Sqrt 8 = 8.4
Sqrt 8 = 2.8
8.4 + 4.4 = 12.8

Bethany is paid $617.09 biweekly. What is her average monthly net income?$873.26
$1,337.03
$617.09
$1,500.00

Answers

Answer:

Option B $1337.03

Step-by-step explanation:

Bethany is paid biweekly. Her biweekly pay = $617.09

Biweekly pay meaning every two week or semi-monthly.

Bethany receives 26 paychecks in a year, because there are 52 weeks in a year and 52/2 = 26

So her yearly income = 617.09 × 26 = $16,044.34

Her average monthly net income = 16,044.34 ÷ 12 = 1,337.028 ≈ 1,337.03

Bethany's average monthly net income is 1,337.03

$1,337.03 is your answer

What is the slope of the equation for y=9-1.5x

Answers

$The\ slope-intercept\ formula:y=mx+b\n\nm\to the\ slope\nb\to\ y-intercept\n------------------\n\ny=9-1.5x\ny=-1.5x+9\n\n\boxed{The\ slope\ m=-1.5}$

This is called slope-intercept form. It is when a linear equation is written y=mx+b.
The m is the slope (rise over run or rate of change) and the b is the y-intercept (where this line crosses the y-axis).
So Think of rewriting this equation as:
y=-1.5x+9
Looks like y=mx+b doesn't it.
This means -1.5=m and thus the slope is -1.5.

What is the discriminant of 9x2 + 2 = 10x?
a. -356
b.–172
c.28
d. 72

Answers

Discriminant is 28 (c) First get the equation into the form: Ax^2 + Bx + C = 0 (the quadratic equation).. By subtracting 10x both sides (to get it on the other side).. 9x^2 + 2 = 10x 9x^2 - 10x + 2 = 10x - 10x 9x^2 - 10x + 2 = 0 Now the discriminant is: b^2 - 4ac The quadratic equation is Ax^2 + Bx + C = 0 Here, A = 9, B = -10 and C = 2 (-10)^2 - 4 (9)(2) = 100 - 4 (18) = 100 - 72 = 28

Answer:

What is the discriminant of 9x2 + 2 = 10x?

–356

–172

answer is 28 c

Step-by-step explanation:

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Answer and maybe an explanation.Thanks in advance.