For f(x) = 2 – 2x2, evaluate f(-4).

Answers

Answer 1

Answer:

x = 1 ± [tex]\sqrt2[/tex]

Step-by-step explanation:

Hope this helped! Have a nice day!
Please give Brainliest when you can.

- King Jaron


Related Questions

An employer pays you penny the first day you work and doubles your wages each day after that: Find your total earnings after working 7 days a week for (a) One week (b) Two weeks (c) Three weeks (d) Four weeks

Answers

If first day ONE penny then = 2nd: 2, 3rd: 4, 4th: 8, 5th: 16, 6th: 32, 7th: 64 so just keep doubling that
a) answer is 64 pennies
b) answer is 8 192 pennies
c) answer is 1 048 576 pennies
d) answer is 134 217 728 pennies

What is the circumference in centimeters, of the circle?
Use 3.14 for TT

Answers

Step-by-step explanation:

the full question please

A drug prescription of 45 pills costs $427. 95. If each pill contains 3 mg of medication, what is the cost per milligrams?

Answers

Total milligrams

45(3)135mg

COST PER MG:-

TOTAL COST/total Mg427.95/1353.17$/pills

Answer:

$3.17

Step-by-step explanation:

1 pill = 3 mg

⇒ 45 pills = 45 × 3 = 135 mg

45 pills = $427.95

⇒ 135 mg = $427.95

⇒ 1 mg = $427.95 ÷ 135 = $3.17

The function f(x)=(2)(1.0)+x(0.5)2+x models the concentration of pineapple when 2 gallons of pineapple juice are added to x gallons of another juice. Find the concentration of pineapple when 2 gallons of pineapple juice are added to 3 gallons of the other juice. Give the answer as a percent but do not include the percent sign (%).

Answers

The concentration of pineapple when 2 gallons of pineapple juice are added to 3 gallons of the other juice is 5.75

Functions and values

Given the functions that model the concentration of pineapple when 2 gallons of pineapple juice are added to x gallons of another juice as:

f(x)=(2)(1.0)+x(0.5)²+x

If the concentration of pineapple when 2 gallons of pineapple juice are added to 3 gallons of the other juice, then;

f(3) = (2)(1.0)+3(0.5)²+3

f(3) = 2.0 + 3.75
f(3) = 5.75

Hence the concentration of pineapple when 2 gallons of pineapple juice are added to 3 gallons of the other juice is 5.75

Learn more on functions here: https://brainly.com/question/2833285

2x+2=4 solve for x please help me solve this problem

Answers

Answer:

x = 1

Step-by-step explanation:

First subtract 2 on both sides.

2x + 2 -2  = 4 - 2

2x = 2

Divide by 2 on both sides

2x/2 = 2/2

x = 1

Answer:

x=1

Step-by-step explanation:

cause it do 2 multiplied by 1 is 2 plus 2 is 4

Find the missing coordinate (?, -1) for 3x -4y=11

Answers

Answer:

[tex]\frac{7}{3}[/tex]

Step-by-step explanation:

Substitute -1 in place of y in the equation:

[tex]3x -4(-1)=11\\3x=7\\x=\frac{7}{3}[/tex]

Answer:

(7/3, -1)

Step-by-step explanation:

3x -4y=11

Let y = -1

3x -4(-1) = 11

3x +4 =11

Subtract 4 from each side

3x+4-4 = 11-4

3x = 7

Divide each side by 3

3x/3 = 7/3

x = 7/3

How do I find the mean of these numbers?

Answers

Answer:

how  to find the mean: add all your values together then divide them by how many numbers u added

example:

5,7,9,9,10

add= 40

divide by 5, we have 5 values = 8

if i make 8.50 an hr and i work 30 hours a week 5 days a week how much would i make in a month?

Answers

i made about 17.49 in a mouth

Find the mean, median, and mode of the data set. Round to the hundredths, if necessary. 29,300 24,350 32,400 15,100 14,200 21,950 27,450 29,400 15,200 35,050 16,050 11,500 13,050 11,500 11,600 11,100 21,450

Answers

The mean of the data is 20038.24, the median is 16050 while the number with the highest frequency is 11500

Mean, median, and mode of a dataset

Mean are known as averages, median is the middle value after rearrangement while the mode is the value with the highest frequency

Calculate the mean

Mean = sum of data/sample size

Given the data

29300, 24350, 32400, 15100, 14200, 21950, 27450, 29400, 15200, 35050, 16050, 11500, 13050, 11500, 11600, 11100, 21450

The mean of the data is 20038.24

For the median being the value at the middle, the median is 16050 while the number with the highest frequency is 11500

Learn more on mean, median and mode here: https://brainly.com/question/14532771

Find a polynomial f(x) of degree 5 that has the following zeros -1,4,2,0,3

Answers

Answer:

Given that f(x) contains the discrete points of{(0, 3), (1, 4), (2, 0), (3, 1), (4, 2)}, the value of (f of)(0) is5.

Is this adjacent, vertical, linear, or complimentary?

Answers

Answer: Adjacent

Adjacent angles share a common side. Think of two neighboring adjacent apartments that share a common wall.

adjacent the person above me is right

A battery for an underwater drone is in the shape of a square prism is designed to draw in
searates that is then used to produce energy. The base of the battery has soe lengths of 15 centimeters and the heght of the
bertery is 10 centimeters. Find the volume of the battery.

Answers

Answer:

2250 cm^3

Step-by-step explanation:

Volume of sq prism - Base x Base x Height

15 x 15 x 10 = 2250

A mother decides to teach her son about a letter each day of the week. She will choose a letter from the name of the day. For example, on Saturday she
might teach about the letter S or the letter U, but not the letter M.
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
What letters are CANT BE TAUGHT using this method? (There are 11.)
ОА
OB
Ос
OD
ОЕ
OF
OH
01

Answers

Answer:

01 she can teach alphabet using seven days name but not numbers.

The slope of a line is -1/3. Find the slope of a line that is perpendicular to this line.

Answers

Answer:  3

Step-by-step explanation:

Perpendicular lines have slopes that are negative reciprocals of each other.

Answer:

Slope = 3

Step-by-step explanation:

The question is asking us to find the slope of the line that is perpendicular to the line whose slope is -1/3.

Main idea: Perpendicular lines have slopes that are opposite reciprocals.

So our task boils down to finding the opposite reciprocal of -1/3.

First, we change the sign from negative to positive. We get 1/3.

Then, we turn the number over. We get 3.

Therefore, the slope is 3.


Mr. Torres has a class of 17 students. He can spend $24 on each student to buy math supplies for the year. He first buys all of his students calculators, which
costs a total of $77.35. After buying the calculators, how much does he have left to spend on each student?

Answers

Answer:

She has a class of 17 kids. At $24 each, she can spend 17*$24 = $408. Since she spent $125.36, she has $408 - $125.36 = $282.64 left to spend.

Step-by-step explanation:

Total money to spend= 24*17=408
408-77.35= 330.65
330.65/17=19.45
After buying the calculators, Mr. Torres has $19.45 timo spend on each student.

A video has 25 thumbs up. What integer represents its score in points?

Answers

Answer:

25 points

Hope this helps!

Nancy bought a new rectangular rug for her kitchen. The rug measures 2 feet by 2 feet. What is the area of the rug?
A. 4 3/4
B. 5 1/2
C. 5 3/4
D. 9 1/2​

Answers

Answer: 5.5 or 5 1/2.

Step-by-step explanation:

Solve all this

1) 2x-8=11x-10
2)6x-6=3x+1
3)1/2x+4=1/3x+1
4)-2/5x+1/3=1/2x+1/4
5)5/3x2=1/2x-2/3

Answers

Answer: hii :)

1.  2x-8=11x-10 = 2/9

2. 6x-6=3x+1 = 7/3

3. 1/2x+4=1/3x+1 = -18

4. -2/5x+1/3=1/2x+1/4 = 5/54

5. I dont know the answer to <3

Step-by-step explanation:

Hopefully this helps you,

Sorry for being late on the question.

- Matthew

Please I really need help

Answers

Answer:

NM = 17, LY = 5, m<NLY = 53.13 degrees, m<NMY = 28.07 degrees

Step-by-step explanation:

To solve for NM, you just use the Pythagorean theorem,

[tex]8^{2} + 15^{2} = x^{2}[/tex]

64 + 225 = [tex]x^{2}[/tex]

289 = [tex]x^{2}[/tex]

[tex]17 = x[/tex]

To solve for LY, you can use geometric mean,

[tex]\frac{10}{y} = \frac{15+y}{10}\\\\100 = 15y + y^{2} \\y^{2} +15y - 100 = 0\\(y+20)(y-5) = 0\\y= 5[/tex]

To solve for the other angles, use the inverse.

Sin-1, = 8/10

= 53.13

Other angle =

Tan-1 = 8/15

= 28.07

Hope this helps, I put a lot of time into this :)

PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPPPPP


Consider this dilation.



(a) Is the image of the dilation a reduction or an enlargement of the original figure? Explain.
(b) What is the scale factor? Explain and show your work.

ANSWER BOTH PARTS YOU MAY GET EXTRA POINTS!

Answers

Answer:

reductionscale factor 1/2

Step-by-step explanation:

The usual English meanings of the words "reduction" and "enlargement" apply to geometrical figures.

(a)

Figure A'B'C'D' is smaller than figure ABCD, so represents a reduction.

__

(b)

Every coordinate of every image point is half as far from the origin in A'B'C'D' as in the original figure ABCD. For example, the x-coordinate of C' is 2, and the x-coordinae of C is 4. The dilation factor is the ratio of these values:

  k = Cx'/Cx = 2/4 = 1/2

The scale factor is 1/2.

What is the mode of the data represented in this line plot? Enter your answer in the box. A dot plot on a number line. The number line ranges from 5 to 11. The number 5 has 2 marks above it. The number 6 has 4 marks above it. The number 7 has 3 marks above it. The number 8 has 6 marks above it. The number 9 has 2 marks above it. The number 10 has 4 marks above it. The number 11 has 2 marks above it.

Answers

The mode of the data in the line plot is the data with the highest number of marks

The mode of the data is 8

How to determine the mode?

From the line plot, we have the following frequency table:

Number        Frequency

5                       2 marks

6                       4 marks.

7                        3 marks

8                        6 marks

9                         2 marks

10                         4 marks

11                         2 marks

The number with the highest mark is 9

Hence, the mode of the data is 8

Read more about mode at:

https://brainly.com/question/14532771

Answer: The mode is 8

Step-by-step explanation: Mode means the number that shows up must in the graph and since 8 is the highest that goes the mode is 8. Also I did the k12 quiz.

How do you solve this? I don't understand

Answers

Answer:

x=4 (Vertical angles have to be equal to each other! If one side is 46 then the side vertical to it is 46!) **Plug number in for x to verify once again!**

Step-by-step explanation:

You need to understand vertical angles!!

Vertical Angles must be congruent and equal to each other!

You need to do:

10x+6=46

Subtract 6 from both sides

10x=40

Do 40 divided by 10

x=4

To verify: plug 4 for x which should be 40 added to 6 is 46!

Because these two are vertical angles meaning if they are across from each other they are equal!! So therefore you can equal them to each other!!!Hope this helped!!!

Melanie is designing a new board game, and is trying to figure out all the possible outcomes. How many different possible outcomes are there if she rolls a fair die in the shape of a pyramid that has four sides labeled 1 to 4 and spins a spinner with 5 equal-sized sections labeled Monday, Tuesday, Wednesday, Thursday, Friday?

Answers

Answer:

20 possible outcomes

Step-by-step explanation:

5 equal-sized sections x 4 sides of the die = 20

Help picture below problem 8

Answers

Answer:

C. never

Step-by-step explanation:

A trapezoid has exactly one pair of opposite sides parallel.

A parallelogram has exactly two pairs of opposite sides parallel.

A trapezoid is never a parallelogram.

Please solve the whole page

Answers

Answer:

1. 3/20    

2. 76/4

3. 16

4. 1/8

5. 11/1

6. 2.5/1

7. 13/1

8. 255/1

9. 20, 140, 240

10. 3.5, 17.5, 31.5

11. 12

12. 2      

if a number is added by 2 the answer is10 find the number

Answers

8

Explanation:
Just do the reverse of addition. 10-2=8

A local restaurant uses a computer to randomly select an appetizer and accompanying sauce. The table below shows all the
possible outcomes when ordering





What is the probability of receiving chicken or ribs and getting a red sauce?

Answers

Answer:

B 1/5

Step-by-step explanation:

there is 20 combinations

4 of the twenty are ribs or chicken with a red sauce

4/20 = 1/5

-
The expression (3 - 7i)^2 equivalent to

Answers

Answer:

-40-42i

Step-by-step explanation:

9-42i+49i^2=9-42i-49=-40-42i

Select all possible values for x in the equation

Answers

Answer:

x = ∛375

Step-by-step explanation:

This expression can be written in multiple ways:

x³ = 375

x = ∛375

x = 5∛15

Seems like x = ∛375  is the only correct answer choice.

Hope this helps!

8 less than the product of 3 and j

Answers

Answer:

3j - 8

Step-by-step explanation:

8 less than the product of 3 and j

3×j - 8

3j - 8

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High school students across the nation compete in a financial capability challenge each year by taking a National Financial Capability Challenge Exam Students who score in the top 26 percent are recognized publicly for their achievement by the Department of the Treasury. Assuming a normal distribution, how many standard deviations above the mean does a student have to score to be publiclyrecognized? Precalculus with trigonometry: concepts and applications answers Select the correct solution for the expression.25+38 A. 25+38=513 B. 1640+1540=3140 C. 1040+2440=3440 D. 25+38=640if youre a connexus student and you know the answers to add and subtract fractions please tell me The equation below represents a chemical reaction. Zn (s) + 2HCl (aq) ZnCl2 (aq) + H2 (g) A 5.00-g sample of zinc is added to hydrochloric acid. The amount of hydrochloric acid is sufficient to allow the zinc to react completely. What mass of hydrogen gas does this reaction produce? A. 0.0308 g B. 0.0771 g C. 0.121 g D. 0.154 g Ryan holds a ball still at position A and then releases it. His friend stops the ball at position F. The image shows the path of the ball from position A to position F. Identify the kind of energy the ball has at each position. PEKEPE and KE 6. A rectangular pyramid fits exactly on top of a rectangular prism. The prism has a length of 16 cm, a width of 6 cm, and a height of 8 cm. The pyramid has a height of 14 cm. Find the volume of the composite space figure. why did businessmen consider roosevelt to be communist 12. In a poll taken in March of 2007, Gallup asked 1006 national adults whether they werebaseball fans. 36% said they were. A year previously 37% of a smaller sample hadreported being baseball fans.a. Find and interpret a 90% confidence interval for the 2007 poll.b. Would the margin of error be larger or smaller for a 99% confidence interval?C. Find and interpret a 98% confidence interval. Please help will give brainliest what is the purpose of truth? Find the area of the figure.8 ft10 ftO aOb80.0.42105.1.1250.3.1225.3.128 .d According to Erickson, personality develops throughout life in response to Lesson 7: Stress Personal Fitness Unit 3: Nutrition help A 10-page play is $0.70 per page to edit. How much will I have to pay you to net this amount on Up Work? Please include the UpWork fee in your calculation. (Also, please use digits only, plus decimal and S-sign where necessary. No need for words.) Flora is a healthy and active 70-year-old with no signs of cognitive impairment. If Flora received the same five sessions of training that the Seattle Longitudinal Study participants had, we would expect that her ability in that skill area would be: Why were many citizens concerned about the lack of a bill of rights in the original Constitution?A. They wanted to get rid of all restrictions on the rights of the people.B. If you list some rights, then those rights become more important than others.C. They feared a governmental abuse of power that might restrict their freedoms.D. They were afraid that the new national government would abolish enslavement. A spinner has 12 equal-sized sections. Nine of the sections are red. a. What is the probability that the spinner will land on red? b. Use words to describe the probability. a. out of 12, or /4 or _% . If the coordinates for C' are (4.5, 4.5), which rule best represents the dilation that was applied to rectangle ABCD to create rectangle A'B'C'D'? A robot can complete 7 tasks in 2/3 hour. What is the unit rate for hours per task A capillary wall is considered:A. NarrowB. Only one cell thickC. ElasticD. Wide