3x^2+8x-6=0 solve with quadratic formula

Answers

Answer 1

Answer:

The answer is x = -4 ± √34 /3

Step-by-step explanation:

Solve the equation for  x  by finding  a ,  b , and  c  of the quadratic then applying the quadratic formula.

Hoped this helped!


Related Questions

Lucky you it's sale time at Best Buy! This TV was originally $229 it's now on sale for 25% off. How much is the TV now?

Answers

Answer:

0.000725 i think :)

Step-by-step explanation:

   Divide the number by 100 (move the decimal place two places to the left).

   Multiply this new number by the percentage you want to take off.

Answer- 171.75
You multiply your original cost (229) by the percent it’s on sale for (.25) then you get $57.25. That is how much is being taken off of the original price so you would subtract 229 by 57.25 to get your answer of $171.75.

need help im dum (not really but i dont get it)


i will give brainliest

Answers

Answer:

20

Step-by-step explanation:

to do % you have to multiply your number (50) by the % which is 40%

but you have to turn your number into a decimal (.40) then multiply

you'll get 20 and there is your answer!

hope this helps!

Lin runs 12 laps around a track in 15 minutes.

A. How many minutes per lap is that?

B. How many laps per minute is that?

C. If Lin runs 20 laps at the same rate, how long does it take her

Answers

Answer:

it will take 25.2 minutes for Lin to run 21 laps

Step-by-step explanation: give crown plsplsplsplsplsplsplsplsplspls, also have a good day!

Find the area of this composite figure.

Answers

Answer: 171 cm

Step-by-step explanation: im not sure if this is right but

9x12=108

9x7=63

108+63=171

Area of triangle = ½bh
Area of rectangle = bh

Total area = Area of triangle + Area of rectangle

Area of rectangle = (12 cm)(9 cm)
Area of rectangle = 108 cm²

Area of triangle = ½(9 cm)(7 cm)
Area of triangle = ½(9 cm)(7 cm)
Area of triangle = 31.5 cm²

Total area = 31.5 cm² + 108 cm²
Total area = 139.5 cm²

Answer: 139.5 cm²



Sarah changed the quadratic function x^2 - 8x+10 from
standard form to vertex form using the method
of completing the square. What number did Sarah add to
both sides of the equation during the process?
a. -8
b. 16
C. 10
d.-4

Answers

Answer:

is d because the vertex is not helping the square

Step-by-step explanation:

Please help if you can, thanks

Answers

Answer:

what does the picture say

Matthew went to the store to buy some of the ingredients for Indian pudding for his mother. He bought cornmeal ($1.74), cinnamon ($2.10), milk ($2.95), and eggs ($1.52). How much did Matthew spend? How much change would Matthew receive if he gives the cashier a $20 bill?

Answers

Answer:

8.04 and he would have 11.96 left over

Step-by-step explanation:

What is the approximate volume of the cylinder?

Answers

Answer:

V ≈ 509 m3 ← This is an approximate answer, rounded to the nearest whole. To calculate the volume of a cylinder, multiply the area of the base (Πr2) times the height (h). This gives the formula V = Πr2h.

Please help will give Brain!

Answers

Answer:

its 4 :)

Step-by-step explanation:

heyyy please give me brain i really am thankfull if you do and

also have a nice day hope this help and thank you very much.

The school that Rob goes to is selling tickets to a spring musical. On the first day of ticket sales the school sold 7 adult tickets and 4 child tickets for a total of $89. The school took in $119 on the second day by selling 7 adult tickets and 14 child tickets. Find the price of an adult ticket and the price of a child ticket.

Answers

Hint: create an equation. Ex. 7a + 4c = 89. If you need more help, let me know!

Is 3 a factor of 14t-20?

Yes

No

Answers

Answer:

No

Step-by-step explanation:

I dont really know

No, 3 is not a factor of 14t-20

Which is the same as 10/3?

Answers

Answer:

3.33 repeating or 3 and 1/3

Step-by-step explanation:

If you divide 10 by 3 you get a repeating decimal of 3.3333...

or if you make the fraction into a mixed number, it would be 3 and 1/3

What is the value of 3x^2– 7x + 9 when x = 4?

Answers

Answer:

29

Step-by-step explanation:

just substitute x with 4 in the equation :)

Which numbers go in the red and blue box to make the same sum(ADDING INTEGERS)!!

Answers

Answer:

positive 3 and 7 in the red box and negative 6 and 4 in the blue box hope that helps

Help please ASAP rn

Answers

Answer, population: 359 million

Answer:

Step-by-step explanation:

It went up 98 ten-tousandth, from 1950 to 1990 divide 2030, by 1990 and then multiply that answer by 98 ten-tousandth

if you know what’s going on pls help thanksss

Answers

basically u are representing the graphs below in symbols and words if that makes any sence

Answer:

1. > less than

2. =< (I can't find the symbol for this but a line should be under the < and thats it) Greater than or equal to

3. < greater than

4. >= less than or equal to

Simply 8t + 6r - 3t + 2r

Answers

Answer: 8r+5t

Step-by-step explanation:

8t + 6r - 3t + 2r

8t-3t= 5t

6r+2r=8r

= 8r+5t

Answer:

The answer would be 8r + 5t

Kyle found that
31/97 = 0.3196. Without doing any computation, explain how we know

that Kyle is wrong.

I need the answer really quickly!!!

Answers

Answer:

The answer actually rounds to 0.3196, but the computation is so long, we just count it as 0.3196. The real answer would be 0.31958762886.

Step-by-step explanation:

Find the perimeter of this parallelogram:
8.2 cm
6.5 cm
Find the perimeter of this triangle:
7.3cm
6.1cm
9.6cm

Answers

Answer:

parallelogram 's perimeter =2(8.2+6.5)

""" =2×14.7

... = 29.4

perimeter of triangle=7.2+6.1+9.6

""""" =22.9

The area of a square is given by x2, where x is the length of one side. Mary's original garden was in the shape of a square. She has decided to double the area of her garden.

Answers

x4 you square areas.

Is 4 a solution of 7 < 5x – 16

Answers

Answer:

no

Step-by-step explanation:

7 < 5*4 - 16

7 < 20-16

7 <4

Answer:

[tex] x > \frac{23}{5} [/tex]

Step-by-step explanation:

[tex]7 < 5x - 16 \\ - 5x < - 16 - 7 \\ - 5x < - 23 \\ [/tex]

[tex] \boxed{Answer:{\boxed{\green{= x > \frac{23}{5}}}}} [/tex]

Does any one know how to do 2r+4<8 it’s aggravating me

Answers

Answer:

Step-by-step explanation:

2r+4<8

subtract 4 from both sides

2r<4

divide by two

no need to reverse the sign since you are not dividing by a negative number

r<2

PLSSSSSS HELPPPPPPP FAST WILL GIVE BRAINLIEST ITS IREADY!!!!!!!!!!! PLSSSSS HELPPPPPPPPPPPPPP

Answers

2 yellow paint, 6 blue paint

Answer:

put the blue paint to 6 and the yellow to 2

On the first day of ticket sales the school sold 8 senior citizen tickets and 1 child ticket for a total of $97. The school took in $102 on the second day by selling 6 senior citizen tickets and 4 child tickets. Find the price of a senior citizen ticket and the price of a child ticket.

Answers

Answer:

A senior citizen ticket costs $11, and a child ticket costs $9.

Step-by-step explanation:

Let s = price of 1 senior citizen ticket, and let c = price of 1 child ticket.

First day:

8s + c = 97

Second day:

6s + 4c = 102

We have a system of 2 equations in 2 unknowns.

8s + c = 97

6s + 4c = 102

We will use the addition method to solve the system.

Multiply both sides of the first equation by -4. Write the second equation below it and add the equations.

     -32s - 4c = -388

(+)     6s + 4c = 102

----------------------------

      -26s       = -286

Divide both sides by -26.

s = 11

Now substitute s with 11 in the first original equation and solve for c.

8s + c = 97

8(11) + c = 97

88 + c = 97

Subtract 88 from both sides.

c = 9

Answer: A senior citizen ticket costs $11, and a child ticket costs $9.

What is the answer to this question

Answers

Answer:

C

Step-by-step explanation:

Quite simple. If x=4, the x+8, or 4+8= 12. 3x or 3*4 also happens to equal 12. Yw.

Answer:

c

Step-by-step explanation:

x + 8= 3x

if the answer is 4 then it would be 4 + 8 = 12 which makes sense. if you have a problem like this just put in what your trying to find and when the problem makes sense that's the solution.

There is a bag with 50 popsicles inside. 5
are red, 15 are orange, 12 are blue, 8 are
yellow and 10 are purple. If you were to
grab one popsicle from the bag, what is
the probability that it is purple?

Answers

Answer:

25%

Step-by-step explanation:

We know that there are ten purple popsicles. Together without the purple popsicles, there are 40 popsicles in total. Therefore there is a 10/40 chance to get purple. We need to turn this into a percentage so we do (10 / 40) x 100. This would equal to 25%, therefore, there is a 25% probability to get a purple popsicle.

Josiah invested $7,800 in an account paying an interest rate of 8 7/8% compounded
continuously. Faith invested $7,800 in an account paying an interest rate of 8 3/4%
compounded quarterly. After 9 years, how much more money would Josiah have in
his account than Faith, to the nearest dollar?

Answers

Answer:

$339

Step-by-step explanation:

Answer:

$339

Step-by-step explanation:

The Game Stop is having a sale on an originally $66.64 game. It is on sale for $29.99.
What is the percent change?

Answers

Answer:

54.997 decrease

Step-by-step explanation:

None  

If only GameStop wasn't that money hungry

29.99/66.64=.45
45% change

Keon biked 78 kilometers in 3 hours. How many kilometers did he bike per hour

Answers

Answer:

26km/hr

Step-by-step explanation:

78 divided by 3 hours is equal to 26km/hr

help please, the image is attached.

Answers

Answer:

A

Step-by-step explanation:

A

17 sheniabduajxhsgdhshs
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