Mathematics College

HELP
find the a,b,c of this table
​

HELP Find The A,b,c Of This Table

Answers

Answer 1

Answer:

a = b = 1 , c = - 8

Step-by-step explanation:

ax² + bx + c = y

( - 5 )² a - 5b + c = 12

c = - 8

3² a + 3b + c = 4

25a - 5b - 8 = 12 ⇔ 25a - 5b = 20 ⇔ 5a - b = 4 ........ (1)

9a + 3b - 8 = 4 ⇔ 9a + 3b = 12 ⇔ 3a + b = 4 .......... (2)

(1) + (2)

8a = 8 ; a = 1

b = 1

y = x² + x - 8

Related Questions

Solve.
Sophia wants to buy a pair of shoes online. Shop X has a price of 35.90 CAD. The price at
Shop Y is 21 British pounds (GBP). Compare the prices using Canadian dollars. If 1 CAD =
0.75 GBP, which shop offers a better deal? Explain.

Answers

Answer:

Shop Y

Step-by-step explanation:

In order to compare, we need to make both the same units first. Since they give us the conversion factor 1 CAD=0.75 GBP, we can plug this in to the shoes from shop X. We get 35.90*0.75=26.93 GBP.

Now we can compare. Since 21 GBP < 26.93 GBP, we can see that shop Y's shoes are cheaper, and therefore the better deal.

Sammy's rabbit can eat 70 pounds of food in 80 days. Part A: At that same rate, how much food will Sammy need to feed his rabbit in 24 days? Part B: How long will it take his rabbit to eat 87.5 pounds of food? Part C: Suppose Sammy buys his rabbit a companion. Together, the rabbits need can eat 95 pounds of food in 65 days. Approximately how much food will Sammy need to buy in order to feed both rabbits inl year ( 365 daya)? Round to the nearest tenth.​

Answers

Part A

The rabbit can eat 70 pounds of food in 80 days. The unit rate is 70/80 = 0.875 pounds of food per day. Multiply this with the 24 days to get the total amount eaten over that timespan.

24*0.875 = 21

Answer:  21 pounds of food

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

Part B

x = number of days

The rabbit eats at a unit rate of 0.875 pounds per day. After x number of days pass by, the rabbit has eaten a total of 0.875x pounds of food. Set this equal to 87.5 and solve for x.

0.875x = 87.5

x = (87.5)/(0.875)

x = 100

Answer: 100 days

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

Part C

This is is similar to part A, just with different numbers. We could follow those steps to get the answer, but I'll go another route.

Instead, I'll use a proportion to solve.

(95 pounds)/(65 days) = (x pounds)/(365 days)

95/65 = x/365

95*365 = 65*x

34675 = 65x

65x = 34675

x = 34675/65

x = 533.461538

x = 533.5

Answer: 533.5 pounds of food

Help me, please? I dont understand these

Answers

Do you not know what slope is? Just use the slope formula which is y2-y1/x2-x1
Choose 2 coordinates and pick one of the y values to subtract by the other and the same x value correlated with ur first y value u subtracted minus the other x value


Which of the following numbers is proportional to 84/108?
1. 86/110
2.98/126
3.64/72
4.91/104

Answers

Proportional numbers are numbers with the same equivalent ratio

98/126 is proportional to 84/108

The number is given as:

[tex]Number = \frac{84}{108}[/tex]

Reduce fraction to the lowest term

[tex]Number = \frac{7}{9}[/tex]

Reduce 86/110 to the lowest term

[tex]Number = \frac{86}{110}[/tex]

Divide by 2/2

[tex]Number = \frac{43}{55}[/tex]

43/55 is not equivalent to 7/9

Reduce 98/126 to the lowest term

[tex]Number = \frac{98}{126}[/tex]

Divide by 14/14

[tex]Number = \frac{7}{9}[/tex]

7/9 is equivalent to 7/9.

Hence, 98/126 is proportional to 84/108

Read more about proportional numbers at:

https://brainly.com/question/1781657

he .......... be eating pizza.​

Answers

The answer is A will...........

He will be eating pizza

S + will + be + V_ing

The absolute value of | – 71 – 19 – 18% is -16.
TRUE
FALSE

Answers

Answer: False i think

Step-by-step explanation:

11/2-2/3 help me plz

Answers

4.83

answer above answer above answer above

Hope this helped, bye:)

12 - 33/4 equal in fraction form?

Answers

The answer is 3 3/4
Happy Holidays!

Answer:

The answer is 3  3/4 I think

Step-by-step explanation:

7. at + b = ar – c
Solve for a

Answers

okkkkkkkkkkkkkkkkkkkkkkkkkkk

How long it would it take to spread a rumor in a town of 90,000 people if each person who heard the rumor told it to 3 new people every 15 minutes?

Answers

Answer:

it would take 30k minutes, equivalent to 500 hours/almost 21 days/almost 3 weeks

Step-by-step explanation:

- Draw A' the symmetric of A with respect to point O

- Draw A' the symmetric of A with respect to (d) ​

Answers

Answer:

how am i supposed to answer this? draw a line lol

Step-by-step explanation:

Pardon me I don't mean to pry I saw the tears falling from your eyes and I thought you're too pretty to not wear a smile hope you don't mind if I sit down for while
NAME THE SONG AND THE SINGER 50 POINTS!!!!!!!!!!

Answers

Answer: Jon Pardi - Tequila Little Time

Step-by-step explanation:

I don't even know what this song is, but I searched it up.

Part C
What is the elevation of the deck where Winston ate dinner?

Answers

Answer: 10 feet

Step-by-step explanation:


Please help!!!!
check for understanding:

Answers

Answer:i thinks is 115.9 maybe im not sure because its in my HW

Step-by-step explanation:

Answer:

x=7.245

Step-by-step explanation:

pythagoras theorem says:

c=√a^2+b^2

so:

c=a2+b2=3.22+6.52≈7.245

square pyramid has _______ spaces​

Answers

Answer:

A square pyramid has five faces: four triangle faces and one square face.

Step-by-step explanation:

Squareee pyramidd has 5 faces

HELP!!!! If you help me with this you’ll be my favorite person ever

Answers

Y= -1/4x+6 thereee youuu go !!

Compute the area of a circle with a diameter of 18 inches.

Answers

Answer:

254.34

Step-by-step explanation:

Diameter: 2×radius

Radius:Diameter÷2

Area: pi×radius²

18/2=9

Radius=9

pi=3.14

3.14×9²=254.34

The area is 254.34

8. There are 18 trumpets in a music room. These trumpets will be placed in 3 equal rows. Which number sentence can be used to find the number of trumpets in each row?​

Answers

Answer:

18÷3=6

Step-by-step explanation:

18 trumpets have to be DIVIDED into 3 rows so you would divide 18 by three to get 6 trumpets in each row.

Aaron ran 2 1/4 miles in 20 minutes. Based on this , how fast is he running one mile ?

Answers

Answer: Aaron is running 8 minutes and 53 seconds per mile.

How many solutions does this system have?

y = -6x - 5

-2y +7 = 12x


A.
One Solution

B.
Two Solutions

C.
No Solutions ***** (what i think)

D.
Infinitely Many Solutions

Answers

A system of equation may have one, zero or infinitely many solutions

The system of equation has no solutions

The systems of equation are given as:

[tex]y = -6x - 5[/tex]

[tex]-2y +7 = 12x[/tex]

Substitute -6x - 5 for y in [tex]-2y +7 = 12x[/tex]

[tex]-2(-6x - 5) +7 = 12x[/tex]

Open brackets

[tex]12x + 10 +7 = 12x[/tex]

[tex]12x + 17 = 12x[/tex]

Subtract 12x from both sides of the equation

[tex]17 = 0[/tex]

The above equation is not true i.e.[tex]17 \ne 0[/tex]

Hence, the system of equation has no solutions

Read more about solutions of equations at:

https://brainly.com/question/9338739

can someone please help me i'm almost done with my work

Answers

Answer:

you are correct with the following question

The answer is D, you have the right one chosen

Sasha's SUV has a 17-gallon gas tank. The SUV gets an estimated 24 miles per gallon.

Approximately how many miles can the SUV run on half a tank of gas?

Answers

Answer:

The SUV can run 204 miles with half a gas of tank.

Step-by-step explanation:

Divide 17 by 2=8.5 gallons

Then do the formula for distance which is:

miles per gallon times gallon

24 times 8.5 would be 204

204 is your answer :3

7x+27x+2 from -5x^2-2x
ADDING AND SUBTRACTING POLYNOMIALS

Answers

Answer:

7x+27x=34x

34x+2-(-5×^2)-2x

34x+2+5x^2-2x

34x+2x=36x

36x+2+5x^2

Name the triangle as described

Answers

Answer:

scalene triangle

Step-by-step explanation:

did I click the right one ?

Answers

Answer:

no its b

Step-by-step explanation:

Answer:

yup

Step-by-step explanation:

Describe the location from the origin of each point in problem 5

Answers

Elaborate, where’s the picture of the problem?

Which expression has a value of −8?

Answers

Answer:

-4+-3+2-3

Step-by-step explanation:

HELPPPPOPPPOPPÑPPÑÑÑ

Answers

A.

So for 1 hour you pay 10 dolars then for 3 you pay 30 then for 11 you pay 110 then for 20 you pay 200.

For B and C I dont Know sorry.

convert 24580 m into km with process ​

Answers

Answer:

24.58 km

Step-by-step explanation:

1 km = 1000 m

1 m = 1 / 1000 km

24580 m

= 24580 / 1000

= 24.58 km

heeelllppp meeee please

Answers

A= 100; b= 0,9
f(x)= 100.(0,9)^x
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