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
Vlad [161]
2 years ago
13

If -2 is the root of the quadratic equation x^2-5x+c=0 find the value of c​

Mathematics
1 answer:
GaryK [48]2 years ago
7 0

Answer:

c=-x^2+5x

Step-by-step explanation:

You might be interested in
What's 6 c ^ 2 + 2.5 D - D + 2C ^ 2 - 3D what is that simplified
adell [148]

I'm assuming that the lower case c and the upper case C are the same variables.

6C^2 + 2.5D - D + 2C^2 - 3D = 8C^2 - 1.5D

4 0
3 years ago
Find the interest rate needed for the sinking fund to reach the required amount. Assume that the compounding period is the same
Maslowich

Answer:

so rate is 4.72 %

Step-by-step explanation:

Given data

time (t) = 5 year  = 5×4 = 20 quarterly

amount = $27456

principal = $1225

to find out

interest rate (r)

solution

we use here amount formula that is

amount = principal ((1+r)^{t} -1 ) / r      .....................1

put all value principal , amount and time in equation 1 and we get rate

rate is r/4 because it is quarterly payment

amount = principal ((1+r/4)^{t} -1 ) / r/4

27456 = 1225 ((1+r/4)^{20} -1 ) / r/4

((1+r/4)^{20} -1 ) / r/4  = 27456/ 1225

((1+r)^{20} -1 ) / r  = 27456/ (1225 × 4)

((1+r)^{20} -1 ) = r 27456/ (1225 × 4)

now by the tvm solver and amount  $27456

graph value

we get r = 0.0472

so rate is 4.72 %

5 0
3 years ago
Read 2 more answers
Remember that to multiply means: add any given number or quantity to itself a certain number of times. Look at the expression 3
brilliants [131]

(3+3+3+3=12) (3x4=12)

(-3) +(-3)+ (-3)+ (-3)= (-12) (-3x4=-12)

3 0
3 years ago
Amelie needs 2| 3/8 cups flour for one recipe and 1| 1/3 cups of flour for another recipe.
ryzh [129]

Answer:

3 and 17/24 cups of flour

Step-by-step explanation:

You need to make the denominator the same so find what number the 8 and 3 can both be turned into to make the same number. They can both be made into a 24. 8x3=24 so you multiply the 3 by 3 making 9. Do the same to the 1/3, multiplying both by 8 making 8/24.

2 9/24 and 1 8/24 which can be made into 3 17/24

5 0
3 years ago
Read 2 more answers
Which expression gives the volume of a sphere with radius 5?
lys-0071 [83]

Answer:

it is d

Step-by-step explanation:

formula of sphere=4/3* pi*r cubed

5 0
3 years ago
Read 2 more answers
Other questions:
  • Help me I’m dumb and stupid :)
    10·1 answer
  • Students were asked to use the distributive property to write an equivalent expression for the expression (x-5)(x-2).
    13·2 answers
  • What is the area of the parallelogram? A parallelogram with a base of 14 centimeters and a height of 5 centimeters.
    12·1 answer
  • Identity each part of speech noun or verb
    6·1 answer
  • -80 = y; to solve for y what has to be done? ​
    13·2 answers
  • What is the volume (in cubic units) of a cylinder with a radius of 3 units and a height of 12 units?
    7·1 answer
  • I know it’s not 5 please help.
    6·1 answer
  • A cow is tethered with a rope 20 m long. What is the maximum area the cow can graze? with a decimal
    13·1 answer
  • Anyone able to help<br> Just question 6 please
    11·1 answer
  • Find the equation of the line.<br> Use exact numbers
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!