Mathematics High School

if f(x) = x^3+2x^2-5, then what is f(-3)

Answers

Answer 1

Answer:

f(- 3) = - 14

Step-by-step explanation:

To evaluate f(- 3) substitute x = - 3 into f(x), that is

f(- 3) = (- 3)³ + 2(- 3)² - 5 = - 27 + 2(9) - 5 = 27 + 18 - 5 = - 14

Related Questions

The book store manager keeps a chart of the number of books sold each week. How

many books were sold all together in weeks 2 and 4?

Book Store Sales

Week

Number of Books

1

2

3

4

1.412

1,531

2,050

1,785

Answers

Answer:

3315

Step-by-step explanation:

Given the data:

WEEK ________1 _____2______3______4

no of books __1412___1531 ___2050 ___1785

Number of books sold in weeks 2 and week 4

Books sold in week 2 = 1531

Books sold on week 4 = 1785

(1531 + 1784) = 3315

a What fractions can you find that are equivalent to 2/3?

Answers

Answer:

4/6

Step-by-step explanation:

The fraction 4/6 is equal to 2/3 when reduced to lowest terms. To find equivalent fractions, just multiply the numerator and denominator of that reduced fraction (2/3) by any integer number, i.e., multiply by 2, 3, 10, 30... 4/6 is equivalent to 2/3 because 2 x 2 = 4 and 3 x 2 = 6 6/9 is equivalent to 2/3 because 2 x 3 = 6 and 3 x 3 = 9

Enter the values of h and k so that y = x2 + 6x + 10 is in vertex form.

y = (x +
)2 +

Answers

Answer:

y = (x + 3)^2 + 1

Step-by-step explanation:

100% on edge

Have a nice day :]

The equation in vertex form is [tex]y = (x + 3)^2 + 1[/tex], and the values of h & k are -3 and 1

What is the vertex form?

The vertex form of an equation is a quadratic equation, written in the form of a parabola

The equation is given as:

[tex]y = x^2 + 6x + 10[/tex]

Write out the constant

[tex]y = (x^2 + 6x) + 10[/tex]

Take the coefficient of x

[tex]k = 6[/tex]

Divide by 2

[tex]k/2 = 3[/tex]

Square the expression

[tex](k/2)^2 = 9[/tex]

So, we have:

[tex]y = (x^2 + 6x + 9 - 9) + 10[/tex]

Rewrite as:

[tex]y = (x^2 + 6x + 9) -9+ 10[/tex]

[tex]y = (x^2 + 6x + 9) + 1[/tex]

Express as a perfect square

[tex]y = (x + 3)^2 + 1[/tex]

Hence, the equation in vertex form is [tex]y = (x + 3)^2 + 1[/tex], and the values of h & k are -3 and 1

Answers

Answer

11 inches

Step-by-step explanation:

No explanation.

How much combined 87.8 and 17.3

Answers

Answer:

105.1

Step-by-step explanation:

87.8+17.3=105.1

A ribbon 9 feet long is cut into two pieces. One piece is 1 foot longer than the other.
What are the lengths of the two pieces?

Answers

5 feet and the other side is 4 feet!!

Fine the perimeter AND area of the composite shape.

Answers

The perimeter is 36 and the area is 46

Find its notation:
(x +6, y + 3)

Answers

Answer: i know the answer but i cant write it all on here

Step-by-step explanation:

a european made car has a 40 litter gas tank. gas costs $3.499 per gallon. How much does it cost to fill this car's gas tank?\
Search instead for a eurapean made car has a 40 litter gas tank. gas costs $3.499 per gallon. How much does it cost to fill this car's gas tank?\

Answers

Answer:

$36.9735831

rounded: $36.97

What vocabulary words can you use to describe 36 and 27?

Answers

Answer:

Divisible by 3 and 9

Step-by-step explanation:

Answer

multiples of 3 and 9

Step-by-step explanation:

3*12=36

9*3=27

9*4=36

Please answer the top half ASAP I need it in 2h please

Answers

Answer:

4/76/1112/1719/3010/177/1511/288/217/323/493/71/24/75/223/73/41/31/103/81/23/84/765/1688/2140/634/31/29/79/521/44

Increases in snow levels are recorded with positive numbers. Decreases in snow levels are recorded with negative numbers. After a winter storm, the depth of the snow on Cherry Street was 10 \text{ cm}10 cm10, start text, space, c, m, end text. But then, the snow started melting at a rate of \dfrac{1}{3} \text{ cm} 3 1 cmstart fraction, 1, divided by, 3, end fraction, start text, space, c, m, end text per hour.

Answers

This question is Incomplete

Increases in snow levels are recorded with positive numbers. Decreases in snow levels are recorded with negative numbers. After a winter storm, the depth of the snow on Cherry Street was 10 cm. But then, the snow started melting at a rate of 1/3 per hour. What was the depth of the snow on Cherry Street after 3 hours?

Answer:

9 cm

Step-by-step explanation:

The depth of snow = 10cm

Rate of melting = 1/3 cm per hour

1 hour = 1/3 cm

3 hours = x cm

Cross Multiply

= 3 hours × 1/3cm = 1 hour × x cm

x cm = 3 hours × 1/3cm/1 hour

x cm = 1 cm

Hence in 3 hours, 1 cm of snow would have melted.

Therefore, the depth of the snow on Cherry Street after 3 hours is

10cm - 1 cm

= 9 cm

Kaelyn has 14 coins I have a value of $1.20. She only has dimes and nickels. How many nickels does Kaelyn have?

Answers

Answer:

10 dimes would be $1.00 and 4 nickels is $.20. That equals $1.20 and 14 coins.

Kaelyn has 4 nickels

Do these 3 side lengths form a right triangle? (Yes or no question): 39 ft, 32.5 ft, 48.5 ft

Answers

Answer: the answer is no

Step-by-step explanation:

no, it is not a right triangle

Step-by-step explanation:

39 square+32.5 square=48.5 square

1,521+1056.3=2, 352.3

2577.3=2352.3

it's not the same so the result it no

ILL GIVE BRAINLIST IF RIGHT ASAP

Answers

Answer:

Because the side lengths of the triangles are proportional.

Step-by-step explanation:

I took geometry.

5(2x-3-4z) Use the distributive property to rewrite the expression above

Answers

Answer:

= 10x-15-20z

Step-by-step explanation:

5 x 2=10 add the x to the end

5 x 3=15

5 x 4= 20 add the z to the end

Hope this helps (:

Answer= 10x-15-20z

Step by Step Explanation:

5(2x-3-4z) or 5•(2x-3-4z) which means the whole equation inside of the parentheses times 5; answer=10x-15-20z.

5. Simplify the expression
-4(2x - 3)
ASAP NEED HELP PLS

Answers

Answer:

-8x + 12

Step-by-step explanation:

It is asking us to simplify. Therefore, we multiply the terms. -4(2x - 3) =

- 8x + 12

Answer:

-8× + 12

Step-by-step explanation:

-4x (2x - 3) simplify

Apply the distributive property

-4 (2x) - 4 × -3

multiply 2 by -4

-8x -4 × -3

multiply -4 by -3

= -8x + 12

I really need help asappp

Answers

Answer:

Step-by-step explanation:

Answer:I say D the other wont work so D

Step-by-step explanation:

Giselle pays $240 in advance on her account at the athletic club. Each time she u
the account. Model the situation with a linear function and a graph.
1. b= 225-15x
2. B=240-15x
3. B=225+15x
4. B=240+15x
Help plz god bless you

Answers

Answer:

2. B=240-15x

Step-by-step explanation:

Answer:

The answer is B = 240 - 15x

Step-by-step explanation:

Solve the inequality. Q No. 1

-2(x - 5) < -x + 3

Answers

Answer:

x>7

Step-by-step explanation:

-2(x - 5) < -x + 3

-2x + 10 < -x + 3

-2x + x < 3 - 10

-x < -7

-x / -1 < -7 / -1

x > 7

Answer:

X < 7

Step-by-step explanation:

i will give 100 points for a simple question but the first person who answered will get what is the capital city of afghanistan

Answers

Answer:

kabul is yhe capital city

kabul is the capital city of Afghanistan.

write the equation x+y=6y into standard form

Answers

Answer:

x - 5y = 0

Step-by-step explanation:

The equation of a line in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

Given

x + y = 6y ( subtract 6y from both sides )

x - 5y = 0 ← in standard form

Answer: x-5y=0

Step-by-step explanation:

x+y=6y

6y-y

X=5y

X-5y=0

If and represent rational expressions and b0 and y0, what is true of their product? Select three options.

The product is equivalent to .
The product is a rational expression.
The product is equivalent to .
The product is the ratio of ax and by.
The product is equivalent to .

Answers

The product with be rational expression

Answer:

B,C,D

Step-by-step explanation:

i took the test

The Wells family drinks 8.5 gallons of milk per week. The McDonald family drinks 1.1 gallons of milk each day. What is the difference, in liters, between the amounts of milk the families will drink in one week? (1 gallon is approximately 3.8 liters)

Answers

Answer:

3.1 liters

Step-by-step explanation:

Wells family- 8.5 gallons per week

McDonald family- 7.7 gallons per week

8.5 gallons= 32.3 liters approx.

7.7 gallons= 29.2 liters approx.

32.3-29.2=3.1 liters difference

Someone please help me

Answers

To hit the bulls eye the table would read
x=3.5 y=2

HELP WILL MARK AS BRAINLIEST! 11 POINTS

Answers

Answer:

u=50/11

Step-by-step explanation:

cross multiply and divide on both sides

Answer:

u = [tex]\frac{50}{11}[/tex]

Step-by-step explanation:

Given

[tex]\frac{u}{10}[/tex] = [tex]\frac{5}{11}[/tex] ( cross- multiply )

11u = 50 ( divide both sides by 11 )

u = [tex]\frac{50}{11}[/tex]

select the story problem that this this division problem represents 3/4 divided by 1/3

Answers

Answer:

3/4 divided by 1/3 would equal 2 1/4 or 2.25.

gabrielle has $0.55 in dimes and nickels. She has 6 coins altogether. how many coins of each kind does she have?

Answers

the answer is 5 dimes and 1 nickel.

hope this helps <3

Answer:

4 = dimes and 2 = five cents

Step-by-step explanation:

Of the 1200 responded to a survey, 456 claimed to be worried about money. What is the likelihood that a person selected at random will not be worried about money?

Answers

There is a 62% chance that the person will not be worried about money.

The ratio of berries to oranges is 10:1. If there are 25 oranges, how many berries are there?

Answers

Answer:

250 berries

Step-by-step explanation:

Berries : Oranges = 10 : 1

Let the number of berries = x

10 : 1 = x : 25

Product of means = 1*x = x

Product of extremes = 10 * 25 = 250

Product of means = product of extremes

x = 250

250 berries

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