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
luda_lava [24]
3 years ago
9

Write a quadratic equation in the form ax^2+bx+c=0 with roots of -4 and 5

Mathematics
1 answer:
Stolb23 [73]3 years ago
7 0

Step-by-step explanation:

- 4 & 5 are roots

Therefore, (x + 4) & (x - 5) are factors.

Required quadratic equation is given as:

(x + 4) (x - 5)  \\  = x(x - 5) + 4(x - 5) \\  =  {x }^{2}  - 5x + 4x - 20 \\  =  {x}^{2}  - x - 20 \\

You might be interested in
How many 1/4 cup servings are in 4 cups of oatmeal ?
Wewaii [24]
4 1/4 cup servings
hope this helps
5 0
3 years ago
Read 2 more answers
Listed below are time intervals​ (min) between eruptions of a geyser. Assume that the​ "recent" times are within the past few​ y
Shalnov [3]

Answer:

p value = 0.039

t = - 2.169

Step-by-step explanation:

Applying the null and alternate hypothesis

H_{0} : U1 = U2

H_{\alpha } : U1 \neq U2

using excel worksheet to calculate for ( t and p )

t = -2.169

p = 0.039

from the results obtained

The conclusion is affected by the significance level because : 0.1 < p > 0.01

so when the significance level  is = 0.1 the Null hypothesis is rejected and we can say the mean time interval will change  while

if the significance level = 0.01 the Null hypothesis is accepted and we can not say the mean time interval has changed because the p -value is greater than 0.01

attached is the excel solution

7 0
3 years ago
F(x) = -22 – 4x<br> Find f(-1)
LUCKY_DIMON [66]
= -22-4(-1)
= -22+4
= -18
3 0
3 years ago
Read 2 more answers
What is the area of a rectangle that is 1 1 4 1 4 1 ​ 1, start fraction, 1, divided by, 4, end fraction meters long and 3 4 4 3
hjlf

Answer:

4 11/16 m²

Step-by-step explanation:

The formula for the area of a rectangle = Length × Width

From the question:

Length = 1 1/4 m

Width = 3 3/4m

Area of the rectangle =

1 1/4 m × 3 3/4 m

= 5/4 m × 15/4 m

= 75/16 m²

= 4 11/16 m²

Area of the rectangle = 4 11/16 m²

7 0
3 years ago
How would adding a score of 0 to this data affect the mean and median game scores? 100,120,130,150
ivanzaharov [21]

Answer:

Step-by-step explanation:

It would add a 0

8 0
3 years ago
Other questions:
  • What are our “cheat words” for finding slope?
    9·2 answers
  • What is the value of x?
    9·1 answer
  • In the chart below shade each day that Ned will swim,circle each day Ned will bicycle
    15·1 answer
  • Can anybody help me please
    11·2 answers
  • What is the definition of a unit rate?
    15·1 answer
  • How do i cross multiply rational equations? EX: 6/x = 4/3
    15·2 answers
  • If it is known that x+y/y =3, find the value of the following expression:
    11·1 answer
  • Need help with left side
    11·1 answer
  • The three lengths of four triangles are given. Which triangle is a right triangle?
    7·1 answer
  • Interpret two-step equation word problems (7th grade math)
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!