1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
arlik [135]
3 years ago
14

Solve the following equation by completing the square. x2-18x+78=0

Mathematics
1 answer:
densk [106]3 years ago
7 0
The answer is 10.73 btw hope this helps
You might be interested in
Emily wants to know the volume of a beach ball. She deduces that the beach ball has diameter of 12 inches, and then uses the fol
Over [174]

Answer:

D. She used the beach's ball's diameter when she should have used the radius

Step-by-step explanation:

To find the volume of the beach ball, using the volume of a sphere is the right formula to use, which is ⁴/3πr³.

The formula she used is correct.

Since the diameter of the ball is assumed to be 12 inches, what is needed to find the volume is the radius.

Radius (r) = ½(diameter) = ½(12) = 6 in.

This is where Emily made a mistake.

She used the diameter of the beach ball instead of its radius (r) which is needed in the equation.

She should have gotten,

V = ⁴/3(3.14)(6)² = 904.32 cubic inches

7 0
3 years ago
Write a exspession for 8 divided by d
BlackZzzverrR [31]

Answer:

8/D

hope this helps

4 0
3 years ago
What is x2+5x=0? Please show all work!
Alexxandr [17]
X2+5x=0
7x+0
divide both sides by 7
7 divided by 0 is 0
x=0
0=0
7 0
4 years ago
Read 2 more answers
Function and Reasoning:
Akimi4 [234]

The number of calories per ounce of soda is 10

<h3>Part A: Represent the relationship between the number of calories and the number of ounces</h3>

The given parameters are:

Calories = 50

Ounces = 5

Let the number of calories be y and the ounces be x.

So, we have:

y = kx

Substitute y = 50 and x = 5

50 = 5k

Divide by 5

k = 10

Substitute k = 10 in y = kx

y = 10x

See attachment for the graph of the relationship between the number of calories and the number of ounces

<h3>Part B: What is the number of calories per ounce of soda?</h3>

In (a), we have:

k = 10

This means that the number of calories per ounce of soda is 10

<h3>Part C: How does the unit rate relate to the slope of the line in the graph above? </h3>

The unit rate and the slope represent the same and they have the same value

Read more about linear graphs at:

brainly.com/question/4025726

#SPJ1

4 0
2 years ago
Mrs. Wilkinson can buy a 20-ounce box of cereal for $3.60 or a 28-ounce box of cereal for $4.20. Which is the better buy?
Vsevolod [243]
3.60 / 20 = 0.18

4.20 / 28 = 0.15


The 28-ounce box has better value, as cost-per-ounce is lower.
4 0
4 years ago
Other questions:
  • Can someone please actually help me with this?<br> Images Below
    15·1 answer
  • 2) Arrange the numbers in increasing order. 8.08 8.081 8.09 8.008​
    15·1 answer
  • 338+35<br> Hehejdhdbdhchdsjjxxjdjdjdjdjjxdjdjjdjdjdjdjdhdjdjdhd
    8·1 answer
  • Simplify the expression to a polynomial in standard form: (4x+5) (x^2-3x-2) PLEASE HLEP
    6·1 answer
  • 8(5g+5−2) = plz help with my homework
    15·1 answer
  • I just want to make sure or is it b?
    7·1 answer
  • Need help on this please
    13·2 answers
  • Tyler has a 5-gallon jug (which holds 80 cups) to use for his lemonade stand and 16 cups of lemonade mix. Which lemonade recipe
    6·1 answer
  • Please answer immediately
    13·1 answer
  • In which of the following do you expect the correlation coefficient to be negative?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!