Multiply and simplify out theese brackets(X+1)(x+3)

1 answer:

6 0

The method in which you do this problem would be to FOIL. First Outer Inner Last. You take the first terms and multiply them. x*x = x^2 (x to the second power). Then you do it with the rest of foil.
x*x = x^2
x*1 = x
x*3 = 3x
1*3 = 3
x^2 + x + 3x + 3 = X^2 + 4x + 3

You might be interested in

What are the zeros of the function f(x)= x^2+7x−18? Enter your answers in the boxes.

olga55 [171]

The zeros of the function are x=2,-9

5 0

3 years ago

What is halfway between 400,000 and 500,000?

goldenfox [79]

Answer:

450,000

This is because 400,000 and 500,000 have no other numbers that could be the middle, so it has to be directly in-between both numbers.

__________________________________________________________

Questions related to this topic? Please ask me in the comments box.

4 0

2 years ago

Read 2 more answers

The average score on a standardized test is 750 points with a standard deviation of 50 points. What is the probability that a st

nalin [4]

The probability that student scored more than 850 we shall proceed as follows:
z=(x-μ)/σ
where:
x=850
μ=750
σ=50
thus
z=(850-750)/50
z=2
thus
P(x>850)=1-P(x<850)=1-P(z<2)=1-0.9772=0.0228

Answer: P(x>850)=0.0228

4 0

3 years ago

Read 2 more answers

A __________ is a graphical summary of data previously summarized in a frequency distribution. a. box plot b. histogram c. scatt

OLga [1]

Answer: b. histogram

Step-by-step explanation:

A histogram is a graphical summary of data previously summarized in a frequency distribution. It is an accurate representation of the distribution of numerical data, the height of each bar shows how many fall into each range(the frequency of each range). Data from a frequency distribution table can be easily summarised graphically on a histogram.

An example of histogram is shown in the attachment

8 0

3 years ago

Find the perimeter of a square watermelon farm whose side is 14 miles.

Harlamova29_29 [7]

Perimeter is adding all the sides.
since it is square it is 14 +14 +14 +14 = 56 miles

8 0

3 years ago

Read 2 more answers