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
Andrew [12]
3 years ago
9

What is the factored from of x^2-4x-5?

Mathematics
2 answers:
Aloiza [94]3 years ago
7 0

its d, I just solved it...

Alexeev081 [22]3 years ago
4 0

Answer:

(x - 5) (x + 1)

Step-by-step explanation:

Given

x² - 4x - 5

= x² - ( 5 - 1)x - 5

= x² - 5x + x - 5

= x( x - 5) + 1 ( x - 5)

= ( x - 5) ( x + 1)

Hope it will help you :)

You might be interested in
Please help me solve this !:) <br> Explain your answer <br><br> I will give braisnlt . Oh
ser-zykov [4K]

Answer:

D

Step-by-step explanation:

A is incorrect because if 1 x value corresponds to multiple y values, it is not a function

B is incorrect for the same reason as a

C is incorrect because it is linear

D is correct because 1.) all of the others are wrong, and 2.) it is nonlinear.

8 0
3 years ago
Can someone help me with E please I don’t know what operation to use
gtnhenbr [62]
The first question asks who sold more rolls. So start with figuring out how many Christie sold.
5 total - 1 2/3 left = 3 1/3 sold
you can convert the numbers to improper fractions with the same denominator. Like this:
5 x (3/3) - (3+2)/3
15/3 - 5/3 = 10/3
10/3 = 3 1/3

So now we know Christie sold more because 3 1/3 dozen is more than 2 1/2 dozen.

The part asks how many more.. Subtract the amounts the two girls sold.

3 1/3 - 2 1/2
10/3 x (2/2) - 5/2 x (3/3)
20/6 - 15/6 = 5/6

Christie sold 5/6 dozen more rolls. A dozen is 12 rolls so if you wanted to go further you just multiply 12 x 5/6 = 10 rolls
4 0
3 years ago
What is the measure of A using the triangle abc
djyliett [7]
Do sin(90)*13/15 which gives you 0.87 then do inverse of sin-1(0.87) which angle A = 60.45 degrees
5 0
3 years ago
Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i
mash [69]

Complete Question

A biologist reports a confidence interval of (3.5,4.9) when estimating the mean height (in centimeters) of a sample of seedlings. What is the estimated margin of error and the sample mean?

Answer:

The  margin of error is  E = 0.7

The  sample mean is  \=  x  =  4.2

Step-by-step explanation:

from the question we are told that

   The  upper limit is  k  =  4.9

    The  lower limit is  r = 3.5

Generally the margin of error is mathematically represented as

      E =  \frac{k - r}{ 2}

      E = \frac{ 4.9  -  3.5 }{2}

     E = 0.7

Generally the sample mean is mathematically evaluated as

        \=  x = k  -  E

=>    \= x  =  4.9 - 0.7

=>    \=  x  =  4.2

4 0
3 years ago
PLEASE HELP NO ONE IS ANSWERING ANY QUESTION I ASK!!!!
Xelga [282]

Answer:

sorry in dont know the ans

5 0
3 years ago
Other questions:
  • What is S7 for 6 – 24 + 96 – 384 + ... ?
    11·2 answers
  • What is the GCF of 84 and 56
    9·2 answers
  • Simplify (3x – 5) + (5x + 1)
    7·1 answer
  • Write the line equation for the line passing through the points (8, 3) and (12, -1).
    7·1 answer
  • What is the y-intercept of function f?<br> A. 1<br><br> B. -1<br><br> C. -2<br><br> D. 5
    5·1 answer
  • Talia bought a home for her pet turtle the rectangular tank is 3 feet long. 1 foot wide and 2 feet high. What is the volume?
    11·2 answers
  • Use the graph at the right. If the
    11·1 answer
  • (2n-9)-(-2.4n+4)Find the difference.
    15·1 answer
  • The circle below has center H. Suppose that =m∠FHG64°. Find the following.
    11·1 answer
  • _______ 2. Find the length of PQ
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!