Please help! <br>Factor f(x)=x^4-x^3-7x^2+13x-6 completely. Then sketch the graph

ANSWER CORRECTLY AND IF YOU DONT KNOW IT JUST DONT SAY ANYTHING

arlik [135]

9514 1404 393

Answer:

A. 40, dollars added per day to the bank account

B. y -600 = 40(x -0); y = 40x +600; 40x -y = -600

C. f(x) = 40x +600

D. $880

Step-by-step explanation:

A. The slope is given by the formula ...

m = (y2 -y1)/(x2 -x1)

m = (720 -600)/(3 -0) = 120/3

m = 40

The bank account is increasing at the rate of $40 per day.

__

B. Point-slope form is ...

y -k = m(x -h) . . . . . line with slope m through point (h, k)

Using the first point, we have (h, k) = (0, 600) and m = 40.

y -600 = 40(x -0)

Slope-intercept form is ...

y = mx +b . . . . . . line with slope m and y-intercept b

The first point tells us the y-intercept is b=600, so the equation is ...

y = 40x +600

Standard form is ...

ax + by = c . . . . . . . a > 0, and a, b, c mutually prime

This form can be obtained by subtracting y from the point-slope form.

40x -y = -600

__

C. Replacing y with f(x) in the slope-intercept form gets the desired equation.

f(x) = 40x +600

__

D. The table shows the balance after 6 days. The balance increases $40 each day, so the balance after 7 days is ...

$840 +40 = $880 . . . . balance after 7 days

5 0

3 years ago

Which expression is equivalent to -36 – 8? Choose 1 answer: А -36 + (-8) B -8 + 36 8 - 36 D 36 + 8

Leviafan [203]

Answer:

b is the answer

Step-by-step explanation:

5 0

3 years ago

Question 2(Multiple Choice Worth 5 points) (02.01 LC) Simplify negative 8 over 3 divided by negative 2 over 6.. −8 −4 4 8

Nana76 [90]

Answer:

8

Step-by-step explanation:

we have

$\frac{(-8/3)}{(-2/6)}$

we know that

To divide fractions take the reciprocal (invert the fraction) of the divisor and multiply the dividend

so

$(-\frac{8}{3})(-\frac{6}{2})$

Multiply the numerators and denominators

$(\frac{8*6}{3*2})$

$(\frac{48}{6})=8$

8 0

3 years ago

18. A science teacher has a supply of 20% saline solution and a supply of 50% saline solution. How much of each solution should

IrinaK [193]

Answer: Option 'B' is correct.

Step-by-step explanation:

Since we have given that

There is a supply of 20% saline solution and a supply of 50% saline solution.

If a teacher wants to mix together to get 60 ml of 28% saline solution for an experiment.

We will use "Mixture Allegation" to find the quantity of each solution:

Ist type of solution II nd type of solution

20% 50%

28%

--------------------------------------------------------------------------------------

50%-28% : 28%-20%

22% : 8%

11 : 4

Since there is total quantity of 60 ml of solution.

So, Quantity of 20% solution in the mixture is given by

$\frac{11}{15}\times 60=11\times 4=44\ ml$

Quantity of 50% solution in the mixture is given by

$\frac{4}{15}\times 60=4\times 4=16\ ml$

Hence, there is 44 ml of the 20% solution and 16 ml of the 50% solution.

Therefore, Option 'B' is correct.

8 0

3 years ago

Marty has a fenced yard in the shape of a rectangle. It's area is 635.4 square feet. The width of the yard is 18 feet. What is t

Diano4ka-milaya [45]

636.4 divided by 18 equals 35.35 repeating

3 0

3 years ago

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Please help! Factor f(x)=x^4-x^3-7x^2+13x-6 completely. Then sketch the graph