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3 years ago

Find the product (x-1)(x-8)

Mathematics

2 answers:

zubka84 [21]3 years ago

8 0

<span>(x-1)(x-8)

There is a multiplying method called FOIL (First, Outside, Inside, Last). </span>This refers to the order in which you multiply the parts in the parenthesis before adding the parts together.

First: (x)(x)= x^2
Outside: (x)(-8)= -8x
Inside: (-1)(x)= -1x
Last: (-1)(-8)= 8

Then add it up...

x^2 + (-8x) + (-1x) + 8

x^2 - 9x + 8

yuradex [85]3 years ago

4 0

This is the answer look at the steps

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Philip and Kevin are hoping to earn enough money to buy concert tickets for a show that costs $225 her concert tickets. Philip a

liubo4ka [24]

Answer:

Kevin will earn the money before than Philip

Philip needs at least 4 weeks

Kevin needs at least 3 weeks

Step-by-step explanation:

Let's call x to the number of weeks

Philip works 6 hours each weekend, which means 6 hours per week, earning $8.75 per hour, which is equivalent to 6*8.75 = $52.5 per week

Philip has already saved $45. Then he needs the next number of weeks:

52.5*x + 45 = 225

x = (225 - 45)/52.5

x = 3.4

Philip needs at least 4 weeks

Kevin works 3 hours per day for 3 days a week, which means 9 hours per week, earning $7.5 per hour, which is equivalent to 9*7.5 = $67.5 per week

Kevin has already saved $30. Then he needs the next number of weeks:

67.5*x + 30 = 225

x = (225 - 30)/67.5

x = 2.9

Kevin needs at least 3 weeks

8 0

2 years ago

Which of the following best describes the relationship between (x + 2) and

Troyanec [42]

Answer:

B. (x+2) is a factor

Step-by-step explanation:

3x^2 -x-14

3x^2+6x-7x-14

3x(x+2)-7(x+2)

(3x-7)(x+2)

so, x+2 is a factor of 3x^2-x-14

8 0

3 years ago

Gina ate 3/4 of an apple pie. greg ate 1/8 of the same pie. how much of the Apple pie was left?

miskamm [114]

There would be 1/8 of the pie left,
you have to add 3/4 and 1/8 to find the total eaten and then subtract it by 8/8 (the total) which would give you your answer.

Hope it helps

5 0

3 years ago

The _____ of a line is y=mx+b. The variable m in the equation stands for the _____. The variable b in the equation stands for th

baherus [9]

Answer:

The answers in order are:

slope-intercept form

slope of a line

y-intercept

Step-by-step explanation:

These are the definitions of the terms.

y=mx+b is called slope-intercept form because it contains the slope (m) and y-intercept (b)

slope of a line is change in y over change in x (steepness) which is m

y-intercept is point line intercepts y-axis and is b

6 0

2 years ago

HELPPP PLEASE !!!!

PolarNik [594]

Answer:

P(B)= 17/20

Step-by-step explanation:

The audience of the magic show is conformed by a total of 120 people, 52 of which are female and 68 are men.

Within the audience there is a school class of 37, of these students, 17 are female and 20 are male.

If a random member of the audience is selected as a volunteer:

Let "A" represent the event that "the selected volunteer is a student of the class"

And "B" the event that "the selected student is female"

You have to calculate the probability of the selected volunteer being female, given that it is a member of the school class.

Symbolically:

P(B|A)

Using the formula of conditional probabilities you can calculate it as:

P(A∩B)= =

As you can see the probability of the event "The volunteer is female given that it was a student of the school class" means that you already know the selected volunteer was a student and only needed to calculate the probability of that student being female.

P(B)= 17/20

I hope this helps

7 0

2 years ago