f(x)=-x^2+8x-14 using quadratic formula

Answers

Answer 1

Answer:

Were you looking for the x and y intercepts? The question is very misleading.

If you were the x intercepts are (4-√2,0), (4+√2,0)

And the y intercept is (0,−14)

If you did not mean this in your question please specify what you meant.

Answer 2

Answer:

[tex]x=4-\sqrt{2}[/tex] or [tex]x=4+\sqrt{2}[/tex]

Step-by-step explanation:

Plug in given values of a, b, and c into the quadratic formula and solve for x:

[tex]x=\frac{-b±\sqrt{b^{2}-4ac } }{2a}[/tex]

[tex]x=\frac{-8±\sqrt{8^{2}-4(-1)(-14) } }{2(-1)}[/tex]

[tex]x=\frac{-8±\sqrt{64-56 } }{-2}[/tex]

[tex]x=\frac{-8±\sqrt{8} }{-2}[/tex]

[tex]x=\frac{-8±2\sqrt{2} }{-2}[/tex]

[tex]x=4±-\sqrt{2}[/tex]

Therefore, the roots are [tex]x=4-\sqrt{2}[/tex] or [tex]x=4+\sqrt{2}[/tex]


Related Questions

If angle 3 is 4x+1 and angle 4 is 7X+3. what are the measures of angle 3 and 4? ​

Answers

Answer:
3=13
4=31
Your welcome☺️
And don’t click on the links just report them bc it’s nothing but a hack

Help I’ll mark Brainly est

Answers

Answer:

c

Step-by-step explanation:

it's c I think hmm maybe


Avery is solving the following equation.
-2[m - 2] = -6
Which equation is equivalent to Avery's equation?
A. – 2m + 4 = -6
B. Im - 2] = -3
C. 2m + 4 = 6
D. Im - 2) = 3

Answers

Answer:

A. – 2m + 4 = -6

Step-by-step explanation:

I should know. I did the question.

Mary McDonald makes mugs in Miami. She makes two sizes of mugs: a small mug that she sells for
$2.50 and a large mug that she sells for $5.75. Yesterday Mary made $56. Before she opened her shop in the morning, she had 200 mugs in her inventory. At the end of the day she has 188. How many mugs of
each price did she sell?

Answers

Answer:

4 small

8 large

Step-by-step explanation:

s - small mug

l - large mug

Yesterday she had 200 at start of day

at end of day 188 left, so she sold 12 mugs

(1)   s + l = 12

(2)  2.50s + 5.75l = 56.00

Solve for l in (1)

l = 12 - s

substitute in l = 12 - s into (2)

2.50s + 5.75(12-s) = 56.00

2.50s + 69.00 - 5.75s = 56.00

-3.25s + 69.00 = 56.00

-3.25s = -13.00

s = 4

to find l substitute s = 4 into (1)

4 + l = 12

l = 8

Given an = 3n-5, what is the common difference?

Answers

Answer:

3

Step-by-step explanation:

A common difference is found in arithmetic sequences. The simplified formula for arithmetic sequences, which is what is used here, is [tex]a_{n}=dn-a_{0}[/tex]. Where d is the common difference and [tex]a_{0}[/tex] is the zeroth term. So, in the given equation 3 must be the common difference.

For number five what is the Mean, Median, Mode, and Range

Answers

Answer:

Median- 31

Mean- 39

Mode- 20

Range-71

Step-by-step explanation:

Median-13, 20, 20, 20, 31, 35, 61, 67, 84

31 one is in the middle, also you have to sort it for least to greatest.

Mean- Add all the number then divide by the numbers there are.

Mode-It has occored the most

Range- sort least to greatest, then subtract the highest number to the lowest

i need help getting how do i do this??

Answers

Answer:

5 units

Step-by-step explanation:

By distance formula:

[tex]r = \sqrt{(4 - 1) ^{2} + {(7 - 3)}^{2} } \\ \\ r = \sqrt{ {3}^{2} + {4}^{2} } \\ \\ r = \sqrt{9 + 16} \\ \\ r = \sqrt{25} \\ \\ r = 5[/tex]

Answer:

radius = 5 units

Step-by-step explanation:

The radius is the distance from the centre to a point on the circle.

Calculate r using the distance formula

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

with (x₁, y₁ ) = (1, 3) and (x₂, y₂ ) = (4, 7)

r = [tex]\sqrt{(4-1)^2+(7-3)^2}[/tex]

  = [tex]\sqrt{3^2+4^2}[/tex]

   = [tex]\sqrt{9+16}[/tex]

   = [tex]\sqrt{25}[/tex]

   = 5

Which of the following numbers is a perfect square?
A. 10
B. 25
C. 3
D. 2​

Answers

Answer:

B) 25

Step-by-step explanation:

√25=±5

Isabelle rides her bike to school. The graph shows her speed at different times during her ride.



Select the word that describes Isabelle’s speed during the indicated interval.

Time Interval Speed
0 to 2 minutes
3 to 4 minutes
6 to 8 minutes
9 to 11 minutes

Answers

Answer:

0 to 2 minutes - Accelerating

3 to 4 minutes - Constant

6 to 8 minutes - Decelerating

9 to 11 minutes Accelerating

hope i have helped u

Step-by-step explanation:

GAAHHHHHHHHHHHHHH THis Homework hard THOSE 3 Over is bugging me

Answers

Answer:

8. X=33º

9. X=120º

10. X= 161º

Step-by-step explanation:

For all of the 3 questions, the sum of the interior angles is equal to the exterior angle.

Hope this helps! Have a great day!

plz plz plz plz plz HELP

Answers

Answer:

About $19.06

Step-by-step explanation:

25% of 23.98 is 5.995

23.98-5.995=17.985

6% of 17.985 is 1.0791

17.985+1.0791 is 19.0641,

which is $19.06

Brainliest?

A farmer is going to plant more than 50 acres in corn this year.

If a represents the number of acres planted in corn, write an inequality to describe all possible values of a.


a>50A is greater than 50

a<50a<50

a≥50A is greater than or equal to 50

a≤50

Answers

Answer:

+ 1) is an even number.

Take any n ∈ N, then n is either even or odd.

• Suppose n is even ⇒ n = 2m for some m ⇒ n(n + 1) = 2m(n + 1) ⇒ n(n + 1) is even.

• Suppose n is odd ⇒ n+ 1 is even ⇒ n+ 1 = 2m for some m ⇒ n(n+ 1) = 2nm ⇒ n(n+ 1)

is even. QED

2. The sum of the first n natural num

Step-by-step explanation:

a>50A is greater than 50

a<50a<50

a≥50A is greater than or equal to 50

a≤50

Answer:

A. a > 50

Step-by-step explanation:

If a is the number of acres, and the farmer is going to plant more than 50 acres, then the correct inequality is:

a > 50

How many lines of symmetry does the figure have?
a. Lines of symmetry: 0
b. Lines of symmetry: 1
C. Lines of symmetry: 2
d. Lines of symmetry: 3

Answers

Answer:C-2 lines of symmetry

Answer:

1

Step-by-step explanation:

?????????????????????????

Answers

Answer:

192

Step-by-step explanation:

8 is half and a another half also 8 so 16*12 is 192

Pie r square - the area of square
22/7 * 8(2)
22/7 * 64
201.14 - 144 = 57.14

Please help.
Is algebra.
PLEASE HELP NO LINKS OR FILES

Answers

Answer:

Hello, the answer for your question is c (the expression has a variable in the denominator of a fraction)

Step-by-step explanation:

philip buys a pizza for $5.99 and is given $14.01 as change.

which equation represents the situation if is the amount

philip had before he bought the pizza?

Answers

Answer:

$14.01 + $5.99 = $20

Step-by-step explanation:

Phillip had 20 dollars before he bought the pizza.

PLEASE HELP ASAP THIS IS A TIMED TEST. WILL GIVE POINTS AND BRAINLIEST.

Which angles are adjacent to each other? Select all that apply.

1. Angles 3 and 4
And/ Or

2. Angles 2 and 3
And/or

3. Angles 4 and 2
And/or

4. Angles 1 and 3

Answers

Answer:

I think 1 and 2 because they are near each other

mind helping a girl out? pls and thank you lol

Answers

Answer:

First box: 2

Second box: 54

Step-by-step explanation:

The ratio is 1:6.

In other words, the second column is the first column times 6.

2 x 6 = 12

3 x 6 = 12

5 x 6 = 30

9 x 6 = 54

Therefore, the first box would be 2.

The second box would be 54.

Step-by-step explanation:

ginger ale 2because everything is multiplied by 6

so 9 *6

The bank requires a minimum of $50 in the savings account.

it does not matter how much money is kept in the checking account

x represents the amount of money in the checking account and y represents the amount of money in the savings account.

what solution to the inequality?

Answers

Answer:

y50

(y is greater than or equal to 50 dollars)

Step-by-step explanation:

We don't need X as the amount in the checking account doesn't matter, so and Y must be equal to or greater than 50, so the answer is y≥50

Find the sum of 6x2 – 1 and x + 9.

Answers

Please find the attached photograph for your answer.

Elijah is going to invest in an account paying an interest rate of 5.5% compounded
continuously. How much would Elijah need to invest, to the nearest hundred dollars,
for the value of the account to reach $1,400 in 16 years?

Answers

Answer

she will need to invest 77 dllors

Step-by-step explanation:

hiii please help i’ll give brainliest:)

Answers

Answer:

Row ships

Step-by-step explanation:

They helped because a lot of travel took place on the Mediterranean Sea which was a massive body of water that led to the coasts of trading locations.

the answer to that would be the row ships

plz mark brainliest!

g/cm
6 cm
6 cm
What is the volume of a square pyramid that
is 9 cm tall and has a base length of 6 cm?
cubic centimeters
Volume of a pyramid: V = {Bh (Where "B" is the area of the pyramid's base.)

Answers

Answer:

the answer should be 6 cm

Step-by-step explanation:

I believe that is it

The midsegment of aABC is IM. What is the length of AB If IB is 14 inches
long?
B
А
M
A
С
A. 56 inches
B. 7 inches
C. 28 inches
D. 14 inches


Answers

The answer is 28 inches

find the arc length of the bolder arc
A) 283.5 mi
C) 733.0 mi
B) 10.2 mi
D) 73.3 mi

Answers

Answer:

d its d :)

Step-by-step explanation:

i already did that

If you look at someone contemptuously, what do you think of them?

You want to talk to them.
You don’t like them.
You don’t know them.
You feel bad for them.

Answers

Answer:

You don't like them

Step-by-step explanation:

definition: contemptuously  

ADVERB

contemptuously (adverb)

in a scornful way that shows disdain.

"he contemptuously dismisses his son's work"

Help
Please help me

Answers

Answer:

Step-by-step explanation

The answer is D I did this before in 8th grade Im in Oxford

What are the domain and range of h(x) = 3|x|? A. domain: all real numbers; range: y ≤ 0 B. domain: x ≥ 0; range: all real numbers C. domain: x ≤ 0; range: all real numbers D. domain: all real numbers; range: y ≥ 0

Help! plss

Answers

Answer:

D

Step-by-step explanation:

What is the value of -124/?

Answers

Answer:

I think the value of -124 is just 124

Just remove the negative!!

Step-by-step explanation:

Hope this helped!!!

A store that sells skis buys them from a manufacturer ata a whole price of $57 the store make up rate it 50% what percent of the original price is the final price

Answers

Answer: 27

Step-by-step explanation:

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