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
solong [7]
4 years ago
11

5x (x+8)= - 7 quadratic or not? explain, ​

Mathematics
1 answer:
mote1985 [20]4 years ago
6 0

Answer:

Step-by-step explanation:

Yes it is a quadratic equation

5x^2 + 40x = -7

5x^2 + 40x + 7 = 0

a = 5

b = 40

c = 7

-40/10 <u>+</u> (sqrt(1600 - 4(5)(7)))/10

-4 <u>+</u> (sqrt(1600-160))/10

-4 <u>+</u> (sqrt(1440))/10

-4 <u>+</u> 12(sqrt(10))/10

-4 <u>+</u> 6/5(sqrt(10))

You might be interested in
These two trapezoids are similar. What is the correct way to complete the similarity statement?
bogdanovich [222]
It is ABCD ~ GFHE because you have to list corresponding points when stating similarity
3 0
3 years ago
Factor tree of short division 999​
Vlada [557]
I think it is 1! I did it like this. 9•9• 9=1

I put period but it is the division sign
4 0
3 years ago
X =<br><br> 9<br> 7<br> 4<br> LOOK AT IMAGE
frutty [35]
Thy answer is 4
need character limit
3 0
3 years ago
A washing machine manufacturer says that 85% of its washers last five years before repairs are necessary. A random sample of 100
Tresset [83]

Step-by-step explanation:

Download docx
7 0
3 years ago
Ummm so yea.........
Maksim231197 [3]

Answer:

21.75 for 5  $21.75÷ 5= $4.35

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • A pack of cinnamon scented pencils sells for $9.00. What is the sales tax rate of the total cost of the pencils is $9.72
    6·2 answers
  • What is BC? <br> enter your answer in the box<br> units
    5·2 answers
  • A rational number is a number that can be written as a _of two integers
    5·1 answer
  • If someone's weight is five times as great as the weight of someone else and the total of weight of both people is 132 how much
    11·1 answer
  • Lawrence found a shirt he liked in the clearance aisle for 15% off the original price. If the original price of the shirt was $3
    9·1 answer
  • How many panels can she make from 1 piece of fabric
    10·1 answer
  • Wirte an inequality to comepare the ratios 2/4 and 5/6​
    14·1 answer
  • $5 box of cereal: 40% discount
    14·1 answer
  • PPPPPPPPPPPPPPPPPPPPPPPPPPPPplwlwlwlwlwlwlwlEEEEEEEEEEEEEEEEASE
    7·2 answers
  • -8u + 3 = 2u - 17<br> Solve for u
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!