Find f(-2) for the function f (x) = 3x^2-2x+7

Answers

Answer 1

Answer:

23

Step-by-step explanation:

plug -2 in for x then solve


Related Questions

Please help :( I’ve been on this fit awhile

Answers

Okay think the answer b

A train arrives at the station with 150 passengers on board. 2/5 of the passengers get off the train in seattle , and then 35 passengers board the train . How many passengers are on the train when it leaves the station?

Answers

Answer:

95 passengers :) brainliest pls!

Step-by-step explanation:

2/5 = 0.4,

0.4*150 = 60,

60+35 = 95.

0.9x+2.3x = -6.4 Find x on both sides of the problem, a little confused... Would we combine the like terms on the left side?

Answers

Answer:

-2

Step-by-step explanation:

0.9x+2.3x = -6.4

Add the two values of the left side of the equation together

3.2x = -6.4

Divide both sides of the equation by 3.2

x = -6.4 / 3.2

x = -2

Please help I’ll mark brainliest if correct please explain also

Answers

Answer:

2/5

Step-by-step explanation:

5x+6y=11

as we have to find x coordinate

while y coordinate 3/2 is already given in question

so only put value of y coordinate in given equation to get x coordinate value

5x+6y=11

5x+6*(3/2)=11

5x+3*3=11

5x+9=11

5x=11-9

5x=2

x=2/5

Hey can you help me fast!!!

Answers

Answer:

32 squared ft

Step-by-step explanation:

Help please!
Which expression has a value that is less than the base of the expression?
A. 5/63 (3 is squared)
B. 32 (2 is squared)
C. 23 (3 is squared)
D. 44 (2nd 4 is squared)

Answers

The answer might be A

carpenter has a board that is 8 feet long. e cuts off two pieces. One piece is 32 feet ug and the other is 2 feet long. How ch of the board is left?​

Answers

Answer:

2 1/6 feet

Step-by-step explanation:

A carpenter has a board that is 8 feet long. He cuts off two pieces. One piece is 3 1/2 feet long and the other is 2 1/3 feet long. How much of the board is left?

Total length of the board = 8 feet

Piece A = 3 1/2 feet

Piece B = 2 1/3 feet

Piece A + piece B

= 3 1/2 feet + 2 1/3 feet

= 7/2 + 7/3

= (21+14) / 6

= 35/6

= 5 5/6 feet

Length of the board remaining = Total length of the board - length of the two pieces

= 8 feet - 35/6 feet

= (48-35) / 6

= 13/6 feet

= 2 1/6 feet

Length of the board remaining = 2 1/6 feet

Um motor elétrico recebe 2.800 kJ de energia elétrica. Transforma 900 kJ em energia térmica, 150.000 J em energia sonora e o restante em energia cinética. Podemos afirmar que seu rendimento é de: *
a) 62,5 %
b) 68,7 %
c) 70,4 %
d) 72,7 %
e) 92,3 %

Answers

Uno se pierde, el otro se recicla.

Explicación:

El movimiento de nutrientes difiere del flujo de energía en un ecosistema porque los nutrientes se pueden reciclar mientras que, por otro lado, la energía se pierde en el ecosistema. Tanto los nutrientes como la energía fluyen en la misma dirección y toda la energía del ecosistema proviene del sol, que es la principal fuente de energía. Entonces podemos decir que la energía perdida y los nutrientes se reciclan en el ecosistema.

Pls help :( (will get reported if link)

Answers

Answer:

Step-by-step explanation:

A population of 45 foxes in a wildlife preserve doubles in size every 10 years. The function y = 45 * 2 ^ x where x is the number of 10-year periods, models the population growth . How many foxes will there be after 20 years After 20 years there will be Foxes(Type a whole number.)

Answers

Answer: 180

Step-by-step explanation:

Given

The population of 45 foxes doubles in 10 year period

Population follows [tex]y=45\cdot 2^x[/tex]

After 20 years i.e. x=2  Population is given by

[tex]y=45\cdot 2^2=45\times 4\\y=180[/tex]

Thus, there will be 180 foxes after 20 years

Which shows the measures in ascending order for the data below?

14, 18, 11, 11, 15, 18, 11, 12, 15

range, mode, mean, median
range, mean, median, mode
range, median, mode, mean
range, mode, median, mean

Answers

Step-by-step explanation:

range, mode, median, mean

Answer:

range, mode, mean, median

Step-by-step explanation:

I just did it on odyssey

-15a divided by 3 =?

Answers

Answer:

Step-by-step explanation:

hi

the answer is 15a

good luck!

can you choose me as brainliest?

The answer is -5a

-15/3= -5

I hope this helps you!

Lorane saw a sweater she wanted to buy
on sale for 25% off. The store charges a
4.8% sales tax. If the sweater normally
costs $65.00, how much money did Lorane
pay for the sweater, including tax?

Answers

51.09 just take 65.00 -25% then add the 4.8 %

PLEASE HELP THIS IS URGENT>>>>NO LINKS!!

Answers

Answer:

i believe that the answer is c

The price of an item has dropped to $98 today Yesterday it was $140. Find the percentage decrease

Answers

Answer:

30%

Step-by-step explanation:

30% of 140 is 98

Help please n thank u

Answers

Answer:

97.4

Step-by-step explanation:


PLEASE HELP I GIVE BRAINLIEST

Answers

Yes, the correct answer is D
the correct answer d

Which equation could be used to solve the question below?

Scott collected p pins at the parade. He collected 16 pins at the fair and 13 pins at camp. Now, he has 62 pins. How many pins did Scott collect at the parade?
A.
p - 16 + 13 = 62
B.
p + 16 + 13 = 62
C.
p - 16 - 13 = 62
D.
p + 16 - 13 = 62

Answers

Answer:

B

Step-by-step explanation:

62 pins in total = 16 pins at the fair + 13 pins at camp + x pins collected in the parade

5k + 7 + 3k help me
Fast

Answers

Answer:

8k+7

Step-by-step explanation:

Like terms!

5k+3k=8k

6k + 7 i’m pretty sure

Venell put together a model train with 25 train cars. Each train car is 80 millimeters long. How many meters long is Venell's model train if there are no gaps between cars?

Answers

Answer:

2 meters

Step-by-step explanation:

its not hard

Help me with this!!!!

Answers

Answer:

5 units

Step-by-step explanation:

Calculate the distance d using the distance formula

d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1 )^2 }[/tex]

with (x₁, y₁ ) = (6, 4) and (x₂, y₂ ) = (3, 8)

d = [tex]\sqrt{(3-6)^2+(8-4)^2}[/tex]

   = [tex]\sqrt{(-3)^2+4^2}[/tex]

   = [tex]\sqrt{9+16}[/tex]

    = [tex]\sqrt{25}[/tex]

    = 5

Answer:

5

Step-by-step explanation:

I Will give brainliest if I can!
Please keep it simple no big maths stuff please!
Thanks in advance!

Answers

5,12 is for A because that’s the numbers that is on the line for the graph which means it’s only even numbers and for 13 practices I would say 20

51 time 37 divided by 1 equals to what really need help failing

Answers

Answer:

(51*31)/1 = 1581

Step-by-step explanation:

What is the product of 4/5 * 7/8 * 2/3 in its simplest form?​

Answers

Answer:

7/15

Step-by-step explanation:

If the length of the longer leg in a 30°-60°-90° triangle is 5V3, what is the length of the shorter leg?

A. 3
B. 5
C. 5v2
D. 10​

Answers

Answer:

B.   5

Step-by-step explanation:

Let x = length of shorter leg

longer leg = [tex]\sqrt{3}[/tex] times the shorter leg

5[tex]\sqrt{3}[/tex] = x[tex]\sqrt{3}[/tex]

x = 5

(-9)5 ∙ (-9)7
what's the answer

Answers

Answer:

2835

Step-by-step explanation:

-9×5= -45

-9×7= -63

-45×(-63)=2835

a regular window is 48in long and 24 in wide mary would like to buy a screen for the window the screen is based on the number of square feet the screen is use the facts to find the area of the window in square feet

Answers

Answer:

8 square feet

Step-by-step explanation:

48/12=4

24/12=2

2x4=8

If it is 78°F in Memphis and -14°F
in Junaeu, what is the temperature
difference between the two cities?

Answers

Answer:

There is a 92°F difference between the two cities.

Step-by-step explanation:

Since you are finding the difference of temperatures between the two cities, you need to subtract -14 from 78. It looks like 78-(-14). Since you are subtracting a negative number, the equation becomes 78+14. 78+14 is 92.

"Determine which three lengths cannot be the measure of the sides of a triangle. 2 m, 5 m, 6 m 8 m, 10 m, 17 m 5 m, 20 m, 22 m 4 m,15 m, 20 m"

Answers

Answer:

None.

All the four given measurements can form a triangle.

Step-by-step explanation:

Given;

first measurement, = 2m , 5m, 6m

second measurement, = 8m, 10m, 17m

third measurement, = 5m, 20m, 22m

fourth measurement, = 4m, 15m, 20m

For any of the three lengths to form a triangle, the sum of any two sides must be greater than the third side.

First measurement: 2m + 5m = 7m and 7m > 6m (can form a triangle)

Second measurement: 8m + 10m = 18m and 18m > 17m (can form a triangle)

Third measurement: 5m + 20m = 25m and 25m > 22m (can form a triangle)

Fourth measurement: 4m + 15m = 19m and 19m < 20m  BUT

                                  20 m + 15m = 35 m and 35 m > 4m (can form a triangle)

Therefore, all the four given measurements can form a triangle.

Ashley plans to run a total of 24 miles this week. If Ashley has already run 25% of the total distance, how many more miles does she plan to run this week?
A. 6 miles

B. 20 miles

C. 4 miles

D. 18 miles

Answers

Answer:

D.18 millas

Step-by-step explanation:

dividimos  el 24 en cuatro partes que terminaria en 6 restamos 6-24 = 18 millas que seria el 75%

Other Questions
Please help, This is due at 5 pmQuestion 1(Multiple Choice Worth 4 points)(07.01)Which of the values in the set {2, 3, 4, 5} is a solution to the equation 2x + 4 = 10? 2 3 4 5Question 2(Multiple Choice Worth 4 points)(07.01)Geoffrey is trying to earn $50 to buy a video game. He has saved $14.25. He earns $3.75 per hour cleaning windows with his uncle and he earns $6.50 per hour working at the grocery store. Can Fred buy the video game if he works with his uncle for 3 hours and at the grocery store for 4 hours? Use the inequality 3.75y + 6.50z + 14.25 50. Yes, because the total will be $51.50. Yes, because the total will be $60.25. No, because the total will be $24.50. No, because the total will be $37.25.Question 3 (True/False Worth 4 points)(07.01)True or False?k = 3 over 4 is a solution to the inequality 12k + 2 < 12. True FalseQuestion 4(Multiple Choice Worth 4 points)(07.01)Which of the values for x and y make the equation 3x + 4y + 6 = 26 true? x = 4, y = 2 x = 5, y = 6 x = 4, y = 3 x = 3, y = 5Question 5(Multiple Choice Worth 4 points)(07.01)Which of the following sets shows all the numbers from the set {1, 2.5, 3, 4.5, 5} that make the inequality 3a + 4 13 true? {2.5, 3, 4.5} {1, 2.5} {3, 4.5, 5} {4.5, 5} How did the construction of canals and railroads affect the national economy during the 19th century? .What are two reasons hypoxic tumors areare resistant to chemotherapy? what can i use as a natural mascara other then vaseline? Thandi received 15% discount on a dress that costs R1500. How much did shepay? A researcher recorded the number of e-mails received in a month and the number of online purchases made during that month for 50 people with an online presence. The resulting data were used to conduct a hypothesis test to investigate whether the slope of the population regression line relating number of e-mails received to number of online purchases is positive. What are the correct hypotheses for the test?a. H0:1=0Ha:10b. H0:1=0Ha:1>0c. H0:1=0Ha:10Ha:1=0e. H0:b1=0Ha:b10 Please help with this one Bessie is making an apple pie. The top of the pie pan isshown below. Approximately how much pie crust willBessie need to cover the top of the pie? Use 3.14 for nr.9.5 in.A 25 in?B 30 inC 50 in?D 71 in? A 1.3 kg book has 11.7 joules of potential energy relative to the floor when it's sitting on top ofBrenda's dresser. Calculate how tall Brenda's dresser is? The introduction of the 8-bit computer expanded the number of bytes available for encoding. This led to the development of Multitasking systems _____.are easier to develop than single programming systemsexecute each job fasterexecute more jobs at the same timeare used only in large mainframe computers : A small block with mass 0.130 kg is attached to a string passing through a hole in a frictionless, horizontal surface. The block is originally revolving in a circle with a radius of 0.800 m about the hole with a tangential speed of 4.00 m/s. The string is then pulled slowly from below, shortening the radius of the circle in which the block revolves. The breaking strength of the string is 30.0 N. What is the radius of the circle when the string breaks please help me im bad at math and i math you as brainlest if you help me What types of government existed in the city-states? PLS HELP ILL GIVE BRAINLIEST XD 65/p 3 when p = 5 What is the area of triangle BCD to the nearest tenth of a square centimeter? Use special right triangles tohelp find the height. Show your work. Jaspar has a lemonade stand. One glass of lemonade has 4950 milligrams of sugar. One weekend, he sells 87 glasses of lemonade. How many grams of sugar does Jasper use that weekend? Write 3 equivalent ratios for each ratio given.6.25 to 1.25 Read the sentence.I watched carefully as the artist mixed the vibrant green hue with the pale yellow and white on her paint palette.What is the meaning of the word hue in the sentence?sizebrushcanvasshade