All categories

3 years ago

What are the x-intercepts of the function y = x2 – x – 120?

Mathematics

2 answers:

k0ka [10]3 years ago

7 0

Answer:

(1+√481/2,0),(1−√481/2,0)

Step-by-step explanation:

marishachu [46]3 years ago

4 0

Answer:

(1+√481/2,0),(1−√481/2,0)

Step-by-step explanation:

You find this by substituting 0 for y and then solving.

You might be interested in

(7x+5)(2x3-4x2+9x-3)

Zanzabum

I believe the answer is 3x(3x + 2)

Step-by-step explanation:

4 0

3 years ago

Find the values of the variables.

Jlenok [28]

Answer:

The fourth option - t = 3, y = 5

Step-by-step explanation:

-8 + t becomes -5, thus t is 3 since -8 + 3 = -5.

-12 becomes -2y - 2, so we can set these equal to each other as -2y - 2 = -12 and solve from there. Add 2 to both sides, -2y = -10, then divide by -2 on both sides, y = 5.

6 0

3 years ago

Read 2 more answers

What are the solutions of the quadratic equation? 4x^2+9x-9=0

vagabundo [1.1K]

Answer:

$x=3/4$

$x=-3$

Step-by-step explanation:

we have

$4x^2+9x-9=0$

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$4x^2+9x-9=0$

$a=4\\b=9\\c=-9$

substitute in the formula

$x=\frac{-9(+/-)\sqrt{9^{2}-4(4)(-9)}} {2(4)}$

$x=\frac{-9(+/-)\sqrt{225}} {8}$

$x=\frac{-9(+/-)15} {8}$

$x=\frac{-9+15} {8}=3/4$

$x=\frac{-9-15} {8}=-3$

5 0

2 years ago

Read 2 more answers

Help me.A towns population went from 25,800 people to 48,200 people in ten years. What is the percent

solong [7]

The percent increase in population is: 87%

Further explanation:

The percent change is given by:

$Percent\ increase=\frac{Increase}{Original\ number}*100$

Given

Population before 10 years = 25800 people

Population after 10 years= 48200 people

$Increase=48200-25800=22400\ people$

Putting the values in the formula:

$Percent\ Increase=\frac{22400}{25800}*100\\=0.8682*100\\=86.82\%\\Rounding\ off\ to\ nearest\ percent\\87\%$

The percent increase in population is: 87%

Keywords: Percentage, Population

Learn more about percentage at:

#LearnwithBrainly

3 0

2 years ago

A gallon of paint covers 400 square feet how many square feet will 2 3 8th gallons of paint cover

lisabon 2012 [21]

$2 \frac{3}{8} /1=2 \frac{3}{8} 
$
400*2 $\frac{3}{8}$ =950 square feet

6 0

3 years ago