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
USPshnik [31]
2 years ago
15

Find the zeros of the polynomial function.

Mathematics
1 answer:
Ahat [919]2 years ago
8 0
◆ QUADRATIC EQUATIONS ◆

given \: equation \: is \: , \\  \\  {x}^{2}  - 12x + 20 = 0 \\  \\  using \: quadratic \: formula \: , \\  \\ x =  \frac{ - b +  \sqrt{ {b}^{2} - 4ac } }{2a}  \:  \:  \:  \:  =   \frac{ - ( - 12) +  \sqrt{ { (- 12)}^{2} - 4(1)(20) } }{2(1)} \\  \\ x =  \frac{ - b +  \sqrt{ {b}^{2} - 4ac } }{2a}  \:  \:  \:  \:  =   \frac{ - ( - 12)  -   \sqrt{ { (- 12)}^{2} - 4(1)(20) } }{2(1)} \\  \\ x =  \frac{12 + 8}{2}  \:  \:  \:  \:  \: or \:  \:  \:  \: x =  \frac{12 - 8}{2}  \\  \\ x = 10 \:  \:  \:  \:  \: or \:  \:  \:  \:  \: x = 2 \:  \:  \: ans.
You might be interested in
a quantity of ethanol is cooled from 47.9° C to 12.3°C and releases 3.12 KJ of heat. what is the mass of the ethanol sample?​
victus00 [196]

Answer:

35.9 grams

Step-by-step explanation:

We use the formula:

q=m*C_p*\Delta T

Where

q is heat released

m is mass

C_p is the constant 2.44

ΔT is change in temperature

We put the info in the formula and solve for m (mass):

q=m*C_p*\Delta T\\-3.12 =  m*2.44(12.3-47.9)\\-3.12*10^3=m*(-86.864)\\m=35.9

The mass of ethanol is 35.9 grams

8 0
3 years ago
Look at this graph:
Sergio [31]

Answer:

3/2

Step-by-step explanation:

slope=rise/run=30/20=3/2

7 0
2 years ago
Find a measure of the ark
lakkis [162]
Just add that’s by 6 then times it by 5 the add 3 to it
8 0
2 years ago
Read 2 more answers
Mean and standard deviation of sample proportions
asambeis [7]

Answer: D

Suppose that 35\%35%35, percent of students in a school can sing their national anthem correctly. The music teacher takes an SRS of 303030 students from the population of 750750750 students at the school and finds that 40\%40%40, percent of students sampled can sing their national anthem correctly. The teacher plans to take more samples like this.

Step-by-step explanation: Khan Academy Explanation

8 0
3 years ago
What is the answer ???<br><br> X+2+12=22-3
kifflom [539]

Answer:

x = 5

Step-by-step explanation:

x + 14 = 19

x + 14 - 14 = 19 - 14

x = 5

7 0
2 years ago
Read 2 more answers
Other questions:
  • Anthony has a sink that is shaped like a half-sphere
    15·1 answer
  • If the measure of angle BCD=51 degrees, solve for x.
    8·1 answer
  • Write a linear function whose slope is -4 and y-intercept is -5. Explain what these values mean in the equation
    15·1 answer
  • There are 20 bicycles and 10 cars parked in the parking lot. Each bicycle had two wheels and each car had four wheels. How many
    7·2 answers
  • Kyra observed that 85% of the students at a library liked reading mystery stories. If 30 students at the library did not like re
    11·1 answer
  • On a class trip to the aquarium, there is 1 adult for every 7 students. If 44 students go on the field trip, how many adults are
    5·2 answers
  • A number written in proper scientific notation, a x 10", a is greater than 1 and less than 10. True or false
    15·1 answer
  • NEED HELP ASAP !! NEED ANSWERS
    7·1 answer
  • How many times larger is 1,000 than 1?
    7·1 answer
  • How do you find 2/3 of a number?.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!