2
If f(x) = -2x2- x, what is f(2) and f(3)?

Answers

Answer 1

If f(x) = -2x^2 - x, what is f(2) and f(3)?

f(2) = -2x^2 - x
= -2(2)^2 - 2
= -4^2 - 2
= 16 - 2
f(2) = 14

f(3) = -2x^2 - 2
= -2(3)^2 - 2
= -6^2 - 2
= 36 - 2
f(3) = 34

Related Questions

​100 centimeters = ​
meter


How much meter's do it equals?

Answers

Answer:

100 centimeters=1.0 meters

Step-by-step explanation:

hope this helps

Answer:

100

Step-by-step explanation:

One centimeter is equivalent to [tex]\frac{1}{100}[/tex] of a meter. This means that 100 centimeters are in a meter.

A circle has a diameter of 4 meters.

What is its perimeter (to the nearest hundredth)?

What is its area (to the nearest hundredth)?
m^2

Answers

Answer:

Step-by-step explanation:

r = d/2

r = 4/2

r = 2

pi = 3.14

Circumference = 2 * pi * r

Circumference = 2 * 3.14 * 2

Circumference = 12.56

Area = pi r^2

Area = 3.14 * 2^2

Area = 4 * 3.14

Area = 12.56

A car's odometer read 78,354 miles after 2 hours. It read 78,468 miles after 4 hours. What was the car's average speed in miles per hour?

Answers

Answer:

.

Step-by-step explanation:

What is the value of the square root of 2 to the third decimal place?

Answers

Answer:

1.414

Step-by-step explanation:

Please show all of your work for this!

Answers

Answer:

17 units

Step-by-step explanation:

BE is midsegment of ACDF

BE = 1/2(CD + FA)2(3x + 3) = 6x - 16 + 4x - 106x + 6 = 10x - 2610x - 6x = 6 + 264x = 32x = 8

Similarly, FA is midsegment of BEZW

FA = 1/2(BE + WZ)WZ = 2FA - BEWZ = 2(4x - 10) - (3x + 3)WZ = 8x - 20 - 3x - 3WZ = 5x - 23

Substitute x with 8:

WZ = 5*8 - 23 = 40 - 23 = 17

What is an equation of the line that passes through the points (-7, -7)and (-7, 4)?

Answers

Answer:

It is 7 because it both has the same answer

Answer:

Hi! The correct answer is x= -7

Step-by-step explanation:

Use the slope formula and slope-intercept form y = mx + b to find the equation.

Leo traveled to the store at a constant speed, and when he returned, he graphed his motion to show the distance he traveled compared to the time he traveled. Which graph could Leo use to show his trip to the store

Answers

Answer:

A

Step-by-step explanation:

Took the test

which values are solutions to the inequality below? check all that apply √x > 4

A.) 17
B.) 8
C.) 15
D.) 13
E.) 19
F.) 4

Answers

Answer: F 4
Explanation: I hope this helps you with your stuff I really do think that this is it
F.) 4 ❤️❤️❤️I’m sorry if I’m wrong


Write an equation to solve for the number of days it would take to reach 1,000 cases.

How many days will it take to reach 1000 cases? SHOW WORK BELOW

Answers

Answer:

5.2x31 = 161.2

161.2+225=386.2

386.2+540=926.2

1000-926.2=73.8

73.8÷5.2=14.2

So, 14th August

Find the slope of the line that passes through the points (2,8) and (6,8).

Answers

Answer:

8-8/6-2

0/4

answer is 0

y=0x+c

8=0(2)+c

8=0+c

8=c

y=0x+8 i thinkkk

Step-by-step explanation:

Answer:

8-8/6-2

0/4

answer is 0

y=0x+c

8=0(2)+c

8=0+c

8=c

y=0x+8

Step-by-step explanation:

Please help! I will give brainliest.!!

Answers

Answer:

1

Step-by-step explanation:

They are all being multiplied by 3.

1x3=3

5x3=15

6x3=18

9x3=27

Answer:

y=1

Step-by-step explanation:

5x3=15

5,10,15

3,6,9,12,15

6x3=18

6,12,18

3,6,9,12,15,18

9x3=27

9,18,27

3,6,9,12,15,18,21,24,27

| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10   |

|2 | 4 | 6 | 8 |10| 12|14| 16| 18|20  |

|3 | 6 | 9 |12| 15| 18|21|24|27|30  |

|4 | 8 |12 |16|20|24|28|32|36|40 |

|5 |10|15 |20|25|30|35|40|45|50 |

|6 |12|18 |24|30|36|42|48|54|60  |

|7 |14|21 |28|35|42|49|56|63|70   |

|8 |16|24|32|40|48|56|64|72|80   |

|9 |18|27 |36|45|54|63|72|81|90   |

|10|20|30|40|50|60|70|80|90|100|

Hope the chart and everything helps!

Brainiest if right so pls solve down below!

Answers

9514 1404 393

Answer:

  D)  54

Step-by-step explanation:

Put the numbers where the variables are and do the arithmetic.

  2[(x -1) +2xy]

  = 2[(4 -1) +2(4)(3)]

  = 2[3 +24]

  = 2(27) = 54 . . . . matches choice D

Answer:

54

Step-by-step explanation:

We know that:

Given expression: 2[(x - 1) + 2xy]x = 4y = 3

Solution:

2[(x - 1) + 2xy]=> 2[(4 - 1) + 2(4)(3)]=> 2[3 + 2(4)(3)]=> 2[3 + 24]=> 2[27]=> 54

Hence, Option D is correct.

A factory produced 252 television in 9 hours. How many television did the factory produce each hour?

Answers

Answer:

Here,

A factory produced 252 televisions in 9 hour

In 1 hour it produces 252/9 televisions

= 28

so the answer is it produces 28 televisions per hour or each hour.

To the nearest hundredth, what is the length of the diagonal of the prism

Answers

Answer:

theres nothing there

Step-by-step explanation:

kahn academy graph
y= -4/3x+8

Answers

Answer:

First point should be on the y axis, 8. Then you would have to go down 4 and to the right 3.

Step-by-step explanation:

R the midpoint of overline OP and overline QR perpendicular to OP In the diagram below. 20 in. 26 in. Q Find the length of QR .

Answers

Answer:

24

Step-by-step explanation:

Please help! Algebra hw! Hrw

Answers

Answer:

x^9 -20x^7 -6x^3 3x^2 13

Step-by-step explanation:

Standard form for polynomials is to order the degrees of the number from highest to lowest, left to right. So, knowing this, we can infer that it goes x^9 - 20x^7 - 6x^3 + 3x^2 + 13. The degree is 9 (highest exponent), and the leading coefficent (number in front of/multiplying highest degree var) is 1.

Answer: (x^9)+(-20x^7)+(-6x^3)+(3x^2)+13

Step-by-step explanation:

Standard form would just be to organize the polynomial in descending order of the degree (..._^3+_^2+_^1+constant)

liters = 5,000 milliliters

Answers

Answer:

5 liters

Step-by-step explanation:

1,000 milliliters= 1 liter.

5,000/1,000 is 5 liters

Answer:

5 liters

Step-by-step explanation:

but not sure about answer

Mia went to the art store and bought 2 poster boards and 3 markers. She spent A total of $6.50. The total tax was $1.25. How much did each marker cost? *

Answers

The answer is $1.05 but this is only right if the posters cost the same amount as the markers.

FreshFoods has 12 carrots for $4. How would you find the cost of 1 carrot?

Answers

4 divided by 12. 4/12 = .33 cents per carrot

0.62 as a percent
(STEP BY STEP)

Answers

Answer:

0.62 = 0.62 × 100/100 = (0.62 × 100)/100 = 62/100 = 62%;

In other words:

1) Multiply that number by 100.

2) Add the percent sign % to it.

Answer:

62%

Step-by-step explanation:

You would take the decimal and move it to the right two spaces then add the percent sign in replace of the decimal.

.62 → 6.2 → 62. → 62%

Hope this helps!

Sales tax is 7% What will be the sales tax on a purchase of 28.95

Answers

Answer:

7%=$2.03

$28.95+$2.03=$30.98

I am not 100% sure but it is better than nothing.

The answer is $2.0265

25 x (10+3) in word form

Answers

Answer:

Twenty five times the sum of ten and three.

Jamie needs 1/5 meter of ribbon to decorate the border of a photo frame. Enter the number of photo frames that can be decorated using 4/5 meter of ribbon?

Answers

It’s 4 pieces of ribbon :)

The number of 4 of photo frames that can be decorated using 4/5 meter of ribbon.

What is division?

The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into the same number of parts.

Given:

Jamie needs 1/5 meter of ribbon to decorate the border of a photo frame.

And Jamie has  4/5 meter of ribbon.

To find the number of photo frames that can be decorated using 4/5 meter of ribbon:

So, using division operation,

the number of photo frames,

= 4/5 ÷ 1/5

= 4 x 5/5

= 4

Therefore, Jamie can make 4 photo frames from the given ribbon.

To learn more about the division;

https://brainly.com/question/13263114

#SPJ2

(a) What is wrong with the following equation? x2 + x − 42 x − 6 = x + 7 (x − 6)(x + 7) ≠ x2 + x − 42 The left-hand side is not defined for x = 0, but the right-hand side is. The left-hand side is not defined for x = 6, but the right-hand side is. None of these — the equation is correct. (b) In view of part (a), explain why the equation lim x → 6 x2 + x − 42 x − 6 = lim x → 6 (x + 7) is correct. Since x2 + x − 42 x − 6 and x + 7 are both continuous, the equation follows. Since the equation holds for all x ≠ 6, it follows that both sides of the equation approach the same limit as x → 6. This equation follows from the fact that the equation in part (a) is correct. None of these — the equation is not correct.

Answers

Answer:

Attached please find answer

Step-by-step explanation:

= (x² + x - 42) / (x - 6)

= [x² + (7x - 6x) - 42] / (x - 6)

= [x² + 7x - 6x - 42] / (x - 6)

= [(x² + 7x) - (6x + 42)] / (x - 6)

= [x(x + 7) - 6(x + 7)] / (x - 6)

= [(x + 7)(x - 6)] / (x - 6)

= x + 7 → when x approches 6

= 6 + 7

= 13

Other method:

Lim   (x² + x - 42) / (x - 6)

x→ 6

When x → 6, there is an indeterminate expression because: 6 - 6 = 0

Do you know the l'Hôpital's rule, when x → a:

Lim [ f(x) / g(x) ] = Lim [ f'(x) / g'(x) ]

f(x) = x² + x - 42

f'(x) = 2x + 1

g(x) = x - 6

g'(x) = 1

= f'(x) / g'(x)

= (2x + 1)/1

= 2x + 1 → when x approches 6

= 12 + 1

= 13

Write 34% as a fraction or mixed number in simplest form

Answers

17/50 = 34% Hope this helped

Solve the triangle. A = 32°, a = 19, b = 14 (1 point) B = 23°, C = 125°, c ≈17.6 Cannot be solved B = 23°, C = 125°, c ≈29.4 B = 23°, C = 145°, c ≈23.5

Answers

Answer:

The answer is below

Step-by-step explanation:

Given the triangle with: A = 32°, a = 19, b = 14

The sine rule states that for a triangle with lengths of a, b and c and the corresponding angles which are opposite the sides as A, B and C, then the following rule holds:

[tex]\frac{a}{sinA}=\frac{b}{sinB}=\frac{c}{sinC}[/tex]

Given, that for triangle ABC; A = 32°, a = 19, b = 14. therefore:

[tex]\frac{a}{sinA}=\frac{b}{sinB}\\\\\frac{19}{sin(32)}=\frac{14}{sin(B)}\\\\sin(B)=\frac{14*sin(32)}{19} \\\\sin(B)=0.39\\\\B=sin^{-1}(0.39)\\\\B=23^o[/tex]

A + B + C = 180° (sum of angles in a triangle)

32 + 23 + C = 180

55 + C = 180

C = 180 - 55

C = 125°

[tex]\frac{a}{sin(A)}=\frac{c}{sin(C)}\\\\\frac{19}{sin(32)}=\frac{c}{sin(125)} \\\\c=\frac{19*sin(125)}{sin(32)} \\\\c=29.4[/tex]

Answer:

B = 23°, C = 125°, c ≈29.4

Step-by-step explanation:

In the proportion x/5= 15/3 which number is equal to x in the proportion? ​

Answers

Answer:
x = 25
Step-by-step explanation:
We are given a word phrase:
In the proportion x over 5 equals 15 over 3 , which number is equal to x in the proportion?
So we will translate it to make it easier to solve.
Proportion x over 5 --->
equals ---> =
15 over 3 --->
Combining them, we get:

Solving this for x using cross multiplication:

I really need help with this so plz give a good answer

Answers

Yup this answer is 5

This question has 2 parts. Please explain everything you did in order to answer the second question!

Answers

Answer:

41.8 units

Step-by-step explanation:

Property of the kite: diagonals are perpendicular

PQ = PS = √10²+6² = √136 = 11.7 roundedRS = RQ = √6²+7²= √85 = 9.2 rounded

Perimeter is the sum of the side lengths:

P = 2*(11.7 + 9.2) = 41.8

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