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
kvasek [131]
4 years ago
9

In functions, what does (x+2)(x-4) equate to? ​

Mathematics
1 answer:
dimaraw [331]4 years ago
6 0

Answer:

f(x) = x^2 -2x -8

Step-by-step explanation:

(x+2)(x-4)

FOIL

first: x*x = x^2

outer: -4x

inner: 2x

last: 2*-4x = -8

Add together

x^2 +2x-4x-8

x^2 -2x -8

This is a parabola

You might be interested in
I will mark that person brainliest if they answer correctly and must be well explained
Zolol [24]

it is 180

hope this helps

6 0
3 years ago
Read 2 more answers
Seeds are often treated with fungicides to protect them in poor-draining, wet environments. A small-scale trial, involving six t
alukav5142 [94]

Answer:

0.0076 = 0.76% probability that all five plants emerged from treated seeds

Step-by-step explanation:

The plants were chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

6 + 6 = 12 seeds, which means that N = 12

6 treated, which means that k = 6

Five sprouted, which means that n = 5

What is the probability that all five plants emerged from treated seeds?

This is P(X = 5). So

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

P(X = 5) = h(5,12,5,6) = \frac{C_{6,5}*C_{6,0}}{C_{12,5}} = 0.0076

0.0076 = 0.76% probability that all five plants emerged from treated seeds

3 0
3 years ago
Which property justifies the following statement<br> If 13x=104,then x=8
Elena-2011 [213]
This is a a reflective property because it is an if then statement.
8 0
3 years ago
How do you find the scale factor of a prism?
LenKa [72]

Answer:

To find a scale factor between two similar figures, find two corresponding sides and write the ratio of the two sides. If you begin with the smaller figure, your scale factor will be less than one. If you begin with the larger figure, your scale factor will be greater than one

7 0
3 years ago
Read 2 more answers
Solve for the missing side in the special right triangle.
nevsk [136]

Answer:

3

Step-by-step explanation:

If I remember how to solve these questions correctly, if there is a triangle that is 45 degrees, the hypotenuse will be times the square root of 2 of the other two sides (which are equal to eachother). Hope this helped!

6 0
3 years ago
Read 2 more answers
Other questions:
  • Writs a doubles plus one fact for the sum of 7
    9·1 answer
  • What is the rate of change between the interval of x = 3 pi over 2 and x = 2π?
    15·2 answers
  • A student inscribes a triangle within a semicircle. What is the measure of ∠XYZ?
    7·2 answers
  • 18/-3 please solve this
    12·1 answer
  • Consider randomly selecting a single individual and having that person test drive different vehicles. Define events , , and by S
    11·1 answer
  • What’s the meaning of pi and how to find the cylinder of a cylinder. ( JUST DO NUMBER 1)
    11·1 answer
  • Simplify 3^6 divided by (1/3)^-8
    11·2 answers
  • Divide.
    12·1 answer
  • Which situation represents a proportional relationship?
    10·1 answer
  • A train can travel 402 miles on 201 gallons of gas. how far can the train go on 10 gallons?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!