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3 years ago

Consider the function f(x)=x^2 - 6x-7 find its vertex, largest x intercept, and its y intercept

Mathematics

1 answer:

EastWind [94]3 years ago

7 0

Vertex is (3-16) which is a minimum

X-intercepts are (-1,0) and (7,0) but (7,0) is the largest ones

Y-intercept is (0,-7)

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Graph x^3-x^2-2x=0 what are the solutions of the equation

Aleks [24]

X^3 - x^2 - 2x = 0
x ( x^2 - x - 2 ) = 0
x (x-2) (x+1) = 0
x = 0
x-2 = 0 --> x = 2
x+1 = 0 --> x = -1

x = 0, x = 2, x = -1

7 0

2 years ago

James wants to promote his band on the internet. Site A offers website hosting for $4.95 per month with a $49.95 startup fee. Si

cupoosta [38]

Answer:

Part 1) see the procedure

Part 2) $4.95x+49.95 < 9.95 x$

Part 3) $x > 9.99\ months$

Part 4) The minimum number of months, that he needs to keep the website for site A to be less expensive than site B is 10 months

Step-by-step explanation:

Part 1) Define a variable for the situation.

Let

x ------> the number of months

y ----> the total cost monthly for website hosting

Part 2) Write an inequality that represents the situation.

we know that

Site A

$y=4.95x+49.95$

Site B

$y=9.95x$

The inequality that represent this situation is

$4.95x+49.95 < 9.95 x$

Part 3) Solve the inequality to find out how many months he needs to keep the website for Site A to be less expensive than Site B

$4.95x+49.95 < 9.95 x$

Subtract 4.95x both sides

$4.95x+49.95-4.95x < 9.95 x-4.95x$

$49.95 < 5x$

Divide by 5 both sides

$49.95/5 < 5x/5$

$9.99 < x$

Rewrite

$x > 9.99\ months$

Part 4) describe how many months he needs to keep the website for Site A to be less expensive than Site B.

The minimum number of months, that he needs to keep the website for site A to be less expensive than site B is 10 months

4 0

3 years ago

What is the surface area of the right cone with the a raidus of 3 and a slant hieght of 15

Novosadov [1.4K]

The surface area of the cone will be : 169.65 so it would be answer A as 54 x pi = 169.646003

6 0

2 years ago

Plz I will give brainliest

Andrews [41]

Answer:

3 1/3

Step-by-step explanation:

sorry if this is wrong I did a quickly in my head

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2 years ago

Heather is planning a dessert display. She needs 4 ounces of strawberries for each dessert. Part A: Heather is not sure how many

Phoenix [80]

Part A: 4d
d=number of desserts she'll make

Part B: 4d=24
4d/4=24/4
d=6

Hope this helps :)

7 0

2 years ago