Evaluate -3x^3 - 4x for x=-1.

Answers

Answer 1

Answer:

-x.(3x^2+4)

Step-by-step explanation:

Brain-list?

Answer 2

Answer:

-3(-1)^3-4(-1)= 27+4=31

Step-by-step explanation:-3 and -1 when you multiply both minus will change into plus. same for -4 and -1 when you multiply will change the signs. so you will get 27+4=31


Related Questions

math question ???? help​

Answers

Answer:

a=54

Step-by-step explanation:

EASY

look triangles are 180 degrees

means all 3 sides add to 180

look at 2a and the missing angle they add up to 180

180-(a+10)-44

missing angle is

−a+126

exteriro plus interior angles add up to 180

-a+126+2a=180

solve and simplify

a=54

Plsss Help me but QUICK ASAP

Answers

Answer:

Step-by-step explanation:

THe second one

I think it’s the second one

1. Which one of the following is polynomial function ?
(2x+1)x²
A. f(x) =
2x+1
-20 +4x²+8
C. f(x) =
2
2x +4x²+x
D. f(x) =
+ 2x
2x
B. f(x) = 4x2 +2V x2 + 3​

Answers

Answer:

Answer is Option B f(x)=2V x2+3

Plz answer will mark brainliest

Answers

Answer:

3cm

It would be 3.35, but rounded it is 3cm

Step-by-step explanation:

268/80 = 3.35

List the sides in ^ EFG in order from smallest to largest.

Answers

Answer: Choice A) EF, EG, FG

================================================

Explanation:

We'll use these two rules

The smallest side is always opposite the smallest angleThe largest side is always opposite the largest angle

This only applies to triangles.

EF is the smallest side because the angle G is the smallest angle.

FG is the longest side because it is opposite the largest angle E

That places EG in the middle.

The order of the sides from smallest to largest is EF, EG, FG

What is the value of y

Answers

Answer:

y= 1/15.735. y is o.o64 character so one half is your answer

Answer:  27

Step-by-step explanation:

180-153= 27

y=27

Sophie went to the lake with her family. First, they spent 1 1/4 hours of fishing. Then, they spent twice as much time swimming. How much time did they spend fishing and swimming in all?

Answers

Overall, they spent 3 3/4 hours fishing and swimming.

solve the inequality -24<-4m​

Answers

Answer:

m > 6

Step-by-step explanation:

[tex] - 4m > - 24[/tex]

[tex] = > \frac{ - 4m}{ - 4} > \frac{ - 24}{ - 4} [/tex]

[tex] = > m > 6[/tex]

m > 6. Bc you can hello hi is her father

A car dealership is comparing the sales of two employees. The equation that represents Kevin’s sales is S = 60n-5, where n represents the number of years of employment. Dylan’s sales are displayed in the table below:

Years of Employment (n):
2
6
10
Number of Cars Sold (S)
104
324
544

(n) (S)
2 104
6 324
10 544

Compare the statement below to compare the employees’ rate of change.

greater than, 55, 60, -5, -116, 220, less than, 104, equal to

Kevin’s rate of change is _______. Dylan’s because Kevin sells_______ cars per year employed and Dylan sells ________ cars per year employed.

Answers

Answer:

I been trying to look for that answer for so long but can we help each other at least

Answer:

Step-by-step explanation:

We have  Kevin's sales equation is

[tex]S=60n-5[/tex]

Step 1

Find out Dylan's sales equation

Find the slope

We need two points

We take

[tex](2,104)[/tex] And [tex](6,324)[/tex]

[tex]m=(324-104)/(6-2)[/tex]

[tex]m=\frac{220}{4} \\m=55[/tex]

Find the equation in slope intercept form

[tex]s=mn+b[/tex]

We have

[tex]m=55[/tex]

point [tex](2,104)[/tex]

Substitute and solve for b

[tex]104=55(2)+b\\[/tex]

[tex]b=104-110\\b=-6\\[/tex]

So

[tex]S=55n-6\\[/tex]

Therefore

Kevin's rate of change is 60

Dylan's rate of change is 55

Compare

Kevin's rate of change is greater than Dylan's rate of change because Kevin's sell 60 cars per year and Dylan's sells 55 cars per year.

PLEASE MARK ME AS BRAINLIEST

what’s the slope?
a line has the given equation y=-3x-10

Answers

Answer: -3

Step by Step Explanation: This type of equation is called slope-intercept form, y=mx+b; the slope is m, so the slope is -3

Answer: slope= -6.0/2.0= -3.0

Step-by-step explanation:

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is -10.000 and for x=2.000, the value of y is -16.000. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of -16.000 - (-10.000) = -6.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

x-intercept = -10/3 = -3.33333

 y-intercept = -10/1 = -10.00000

what is the solution to 0.2 (4x-8)=0.4(12-2x)​

Answers

The answer is x=4!

Explanation:

Start with:
0.2(4x-8)=0.4(12-2x)
simply:
0.8x-1.6=4.8-0.8x
add 0.8 to both sides to cancel each other out:
1.6x-1.6=4.8
Add 1.6 to each side:
1.6x=6.4
Divide by 1.6:
X=4

Hope this helps!

A restaurant chef made 1 4/5 pints of mushroom soup. Each bowl holds 3/10 of a pint. How may bowls of soup will the chef be able to make?

Answers

Answer:

Step-by-step explanation:

Take:

1 bowl requires 3/10 pint

X bowls require 9/5

Upon cross multiplication you get:

(3/10)x=9/5

;15x/15 = 90/15

x = 6 bowls

If you know how to do this please help me then will give brainliest

Answers

Answer:

The required equation is:

[tex]y=\mathbf{-0.271}x+\mathbf{13.876}[/tex]

Step-by-step explanation:

We have x = Distance of goal posts

y = field Goals made

The data given is:

x       y

20     9

25      6

30       7

35       4

40       1

45        2

50        1

We need to find the regression equation y = bx + a

Where [tex]b=\frac{SP}{SS_x} \:and\: a=M_y-bM_x[/tex]

Sum of all values of x = 245

Sum of all values of y = 30

Now, calculating mean using formula: [tex]Mean=\frac{Sum\:of\:all|\:values}{Number\:of\:values}[/tex]

Mean of x (Mₓ) = 35

Mean of y ([tex]M_y[/tex]) = 4.28

Sum of squares (SSₓ) = 700

Sum of products (SP) = -190

Now, finding b:

[tex]b=\frac{SP}{SS_x} \\b=\frac{-190}{700}\\b=-0.271[/tex]

Now, finding a:

[tex]a=M_y-bM_x\\a=4.28-(-0.271*35)\\a=13.786[/tex]

So, the required equation is:

[tex]y=\mathbf{-0.271}x+\mathbf{13.876}[/tex]

A 15% tip on a $20.05 lunch bill is about ...

A. $0.15
B. $1.50
C. $3.00
D. $2.05

I will give brainliest to whomever gives the answer and an explanation!! Please help!

Answers

The answer is c. Just try it

Find the slope of the line containing the points below.

(3,3) and (12,15)

Answers

Hope this might help u

Answer:

[tex]m=\frac{4}{3}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Point (3, 3)

Point (12, 15)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute [SF]:                    [tex]m=\frac{15-3}{12-3}[/tex]Subtract:                              [tex]m=\frac{12}{9}[/tex]Simplify:                               [tex]m=\frac{4}{3}[/tex]

(c) Mr. Young suggested contacting a travel agent to see whether they could get a lower price. The agent found a price that was 35% lower than $1879. What was the price the travel agent found? Show your work.

Answers

Answer: The travel services sector is made up of a complex web of relationships between a variety of suppliers, tourism products, destination marketing organizations, tour operators, and travel agents, among many others. Under the North American Industry Classification System (NAICS), travel services comprises businesses and functions that assist with planning and reserving components of the visitor experience (Government of Canada, 2014).

A 7% – 8% commission level is somewhat standard with host agencies working with self sufficient agencies. Independent travel agents earning 90% – 100% of the commission are usually high volume seasoned agents that require little to no support from the host agency.

(sorry if im wrong)

:(

whats the answer to the question fast!!!

Answers

Answer:

The first one and the last one

Step-by-step explanation:

Simplify

7(-3/4x-3)

-21/4x-21

-5 1/4x-21

You will get the same answer if you just simply the last one.

Find the midpoint of the segment with the following endpoints.
(2, -4) and (6. – 10)

Answers

Answer:

midpoint (4,-7)

Step-by-step explanation:

please see work attached where you utilize the midpoint formula.

please give thanks :)

Answer:

[tex](4,-7)[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Midpoint Formula: [tex](\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]

Step-by-step explanation:

Step 1: Define

Endpoint (2, -4)

Endpoint (6, -10)

Step 2: Find Midpoint

Simply plug in your coordinates into the midpoint formula to find midpoint

Substitute [MF]:                    [tex](\frac{2+6}{2},\frac{-4-10}{2})[/tex]Add/Subtract:                       [tex](\frac{8}{2},\frac{-14}{2})[/tex]Divide:                                  [tex](4,-7)[/tex]

Cooper opened a savings account with $800 that pays no interest. He deposits an
additional $100 each week thereafter. How much money would Cooper have in the
account 26 weeks after opening the account?

Hi! Please answer this! I will give the first comment brainliest! Thank you so much, this is the last question on my test so please answer❤️

This is an arithmetic sequence question

Answers

Answer:

$3400

Step-by-step explanation:

800+(26x100)

Probability. A professor rides his bike to work some days and drives his car on the other days. On any day there is an 80% chance the professor will ride his bike and a 20% chance he will take his car. If the professor rides his bike, there is a 10% chance he will be late. If he takes his car, theres a 5% chance he will be late. 18. What is the probability the professor is late

Answers

Answer:

0.09

Step-by-step explanation:

Given :

P(bike) = 0.8

P(car) = 0.2

P(Late given car) = P(Late | car) = 0.05

P(Late given bike) = p(Late | bike) = 0.1

Probability that professor is late :

P(late) = [P(Late | car) * p(car)] + [p(Late | bike) * p(bike)]

P(late) = [0.05 * 0.2] + [0.1 * 0.8]

P(late) = 0.01 + 0.08

P(late) = 0.09

write one hundred eight million four hundred four thousand in standard form

Answers

Answer:

108,404,000

Step-by-step explanation:

Answer:184,400,000

Step-by-step explanation:

good

Lisa bought 6 rainbow and balloon stickers for her little sister. The rainbow stickers cost 9 cents apiece and the balloon stickers cost 1 cent apiece. If Lisa spent exactly 46 cents, how many of each type of sticker did she buy?

Please help me fast!!

Answers

L

Answer: Liza bought five rainbow stickers and one balloon sticker.
Explanation: nine times five is 45. 45+1=46.

Please help me slove this problem
3x - 3 = 12

Answers

Answer:

x=5

Step-by-step explanation:

We kind of have to work backward.

First, we take 12+3 because when we move it over the equal sign, we make it the opposite.

12+3=15

Our new equation is now, 3x=15

We now take:

3x__=15

The blank represents x, which is 5.

Hope this helps!

-AxekickNebulite

Which of the following functions is non-linear?
A.y = 2x +1
B.2x- 2y=14
C.(x+2)² = 6
D.y=7

Answers

The one that is non-linear is D
The answer is D. That is the non linear function!

10) A survey of business students who had taken the Graduate Management Admission Test (GMAT) indicated that students who have spent at least five hours studying GMAT review guides have a probability of 0.85 of scoring above 400. Students who do not spend at least five hours reviewing have a probability of 0.65 of scoring above 400. It has been determined that 70% of the business students spent at least five hours reviewing for the test. a. Find the probability of scoring above 400. b. Find the probability that given a student scored above 400, he/she spent at least five hours reviewing for the test.

Answers

Answer:

0.79 ; 0.753

Step-by-step explanation:

Given that:

Students who have spent at least five hours studying GMAT review guides have a probability of 0.85 of scoring above 400 :

≥ 5 hours review = 0.85

Students who do not spend at least five hours reviewing have a probability of 0.65 of scoring above 400

< 5 hours = 0.65

70% (0.7) of business students spend atleast 5 hours review time

A.) probability of scoring above 400

(Proportion who spend atleast 5 hours review time * 0.85) + (Proportion who do not spend atleast 5 hours * 0.65)

Proportion who do not spend atleast 5 hours = (1 - proportion who spend atleast 5 hours) = 1 - 0.7 = 0.3

Hence,

P(scoring above 400) = (0.7 * 0.85) + (0.3 * 0.65) = 0.595 + 0.195

= 0.79

B.) probability that given a student scored above 400, he/she spent at least five hours reviewing for the test.

P(spent ≥5 hours review | score above 400) :

P(spent ≥5 hours review) / P(score > 400)

(0.7 * 0.85) / 0.79

0.595 / 0.79

= 0.753

Find the equation of the line whose slope of 1 over 3 and goes through the point (3, 1)

Answers

Answer: y=3x−12

Step-by-step explanation:

answer:

Y=3x -12


step by step:


-550/100 ÷ 14/7
Please and thank you ​

Answers

Answer:

-2.75

Step-by-step explanation:

Can someone help me.

Answers

Answer:

Its green

Step-by-step explanation:

In here wehn they don't say or it means that the line is going to be attached

At fast food restaurant, 90% of the customers’ order hamburger. If 72% of the customer’s order hamburger and French fries, what is the probability that a customer who orders hamburger will also order French fries?

Answers

Answer:

0.8

Step-by-step explanation:

A = hamburger

B = french fries

P(B|A)

P(AB)/P(A)

= 0.72/0.9

= 0.8

16. If y varies directly as x, and x = 9 when y = 15, find y when x = 33?​

Answers

Answer:

y=55 when x is 33

Step-by-step explanation:

Use the direct variation formula:

[tex]\frac{y}{x} =k[/tex]  or [tex]\frac{y}{x} =\frac{y}{x}[/tex]

Insert the given values:

[tex]\frac{15}{9}=\frac{y}{33}[/tex]

To simplify the equation, cross multiply:

[tex]15(33)=9(y)\\\\495=9y[/tex]

Isolate the variable. Divide both sides by 9:

[tex]\frac{495}{9} =\frac{9y}{9} \\\\55=y[/tex]

Therefore, when x is 33, y is 55.

:Done

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