Expand the following expression
(x + 2)(x² – 3x - 1)

Answers

Answer 1

Answer:

[tex]x^{3} - x^{2} - 7x -2[/tex]

Step-by-step explanation:

Give me brainllest

Answer 2

Answer:

[tex] {x}^{3} - {x}^{2} - 7x - 2[/tex]

Step-by-step explanation:

[tex](x + 2)( {x}^{2} - 3x - 1)[/tex]

Multiply the first term.

[tex]x \times {x}^{2} = {x}^{3} [/tex]

Multiply x by everything on the right, dont do x squared we already done that.

[tex]x \times - 3x = - 3 {x}^{2} [/tex]

[tex]x \times - 1 = - x[/tex]

Multiply 2 by everything on the left expect -1. ( that our next step).

[tex]2 \times {x}^{2} = 2 {x}^{2} [/tex]

[tex]2 \times - 3x = - 6x[/tex]

Multiply the last term, 2 and -1.

[tex]2 \times - 1 = - 2[/tex]

Add like with like.

[tex] {x}^{3} - {x}^{2} - 7x - 2[/tex]


Related Questions


Here are four fractions. Write them small to large
2/3
3/5
5/8
7/11

Answers

Answer:

1. 3/5 2. 5/8 3. 7/11 4. 2/3

Step-by-step explanation:

Answer:

Step-by-step explanation:

Here are four fractions. Write them small to large 2/3 3/5 5/8 7/11

11+11 = 22

A candle shop owner collected data on customers’ favorite scents, as shown in the table.
Lavender 0.31
Vanilla 0.18
Cinnamon 0.23
Floral ?
Coconut ?

A customer is randomly selected. If the probabilities of a customer choosing floral and coconut as their favorite scents are the same, what is the value of the missing probabilities?

0.10
0.14
0.20
0.28

Answers

Answer:

Step-by-step explanation:

It's 14

The missing probabilities for Floral and Coconut are both 0.14.

To find the missing probabilities for Floral and Coconut, we need to consider that the sum of all probabilities must equal 1.

Let's calculate the missing probabilities:

The sum of the given probabilities is:

0.31 + 0.18 + 0.23 = 0.72

Since the sum of all probabilities must equal 1, we subtract the sum of the given probabilities from 1 to find the remaining probability:

1 - 0.72 = 0.28

Since the probability of Floral and Coconut is the same, we divide the remaining probability equally between the two scents:

0.28 / 2 = 0.14

Therefore, the missing probabilities for Floral and Coconut are both 0.14.

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Anybody know the answers?

Answers

Answer:

1 adult = 16 students

a = 16x

Step-by-step explanation:

Divide £104 in the ratio 3:5

Answers

Answer:

39:65

Step-by-step explanation:

104/(3+5) = 104/8 = 13    13(3):13(5) =  39:65

Select THREE equivalent expressions that show how you could factor 16x-48

2(8x-24)

4(4x-12)

2(8x-48)

16(X-3)

X(16+3)​

Answers

2(8x-24)

4(4x-12)

16(x-3)

Write and solve a proportion to find the missing value. Then find the measure of \overline{LT}
LT
.

Answers

35

Step-by-step explanation:

Which of the following represents a geometric sequence?
I 1/4,1/4,1/4,1/4
II 1/4,1/5,1/6,1/7
III 1/4,1,-4,16
IV 1/4,-4,1/4,-4

OOOO

A. I
B. II
C. III
D. IV
Next
Save and Exit

Answers

The answer is IV because I took the test

Answer:

A. I

Step-by-step explanation:

The other person is wrong and I took the test

Estimate 719 – 274. Round each number first.

Answers

☁️Answer☁️

719 rounded up equals 720
274 rounded down equals 270

720-270= 450

What is on the HANNA ORLEANS ALGEBRA 1 (7th for 8th) PLACEMENT TEST GUIDE?

Answers

Answer:

17

Step-by-step explanation:

ifhrFj,iyjgztizzkyraykeLyrgodyyixynj

Find the perimeter of an isosceles triangle with a base of 48 in and a height of 14 in.
will mark brainlist dont give me that link

Answers

Answer:

I think the answer is 103.6

Step-by-step explanation:

divide the base by 2, which will give you 24 and find the hypoteneuse with Pythagorean theorem

(14)^2 + (24)^2 = /742 = 27.8

27.8x2 + 48 = 103.6

hope that answers your question

WILL GIVE BRAINLIEST TO THE RIGHT ANSWER
Tabitha and Paco are in a video game room that consists of 10 games. How many different ways can they play all 10 games if they play each game once?

A.362,880

B.20

C.3,628,800

D.55

Answers

Answer:

Its C

Step-by-step explanation:

Select all that are equal to 3. log28 log416 log327 log101,000

Answers

Answers on edg. are:

log2 8

log3 27

log10 1,000

Step-by-step explanation:

Yo just trust me ight

This equation calculates the value, P, of an account with an initial deposit of P0 and an interest rate of r compounded n times per year after t years.
P = P0 (1+r/n)nt
Vanessa deposits $700 in a savings account with an interest rate of 2% compounded monthly. Assuming she neither adds to nor withdraws from the account, what will be the approximate value of the account in 7 years?
А. $889.57
B. $887.77
C. $714.13
D $805.10​

Answers

Answer:D

Step-by-step explanation:

Plug in 700 for P0, .02 for r, 12 for n and n, and 7 for 5.

Approx value of the account in 7 years will be 805.10$.

What is compound interest?

Simple interest and compound interest are the two methods for calculating interest. Simple interest is computed on a loan's principal, or initial loan amount. Compound interest is sometimes referred to as "interest on interest" since it is computed using both the principal and the accrued interest from prior periods.

Given that equation calculates the value, P, of an account with an initial deposit of P0 and an interest rate of r compounded n times per year after t years.

P = P0 (1+r/n)nt

Vanessa deposits $700 in a savings account with an interest rate of 2% compounded monthly. Assuming she neither adds to nor withdraws from the account.

Hence, initial deposit:$700.00

Interest rate:2% yearly

Time:7 years

Compounding: Monthly so n = 12

put these values in the given equation. we will get P = 805.10

Therefore the value of the account in 7 years will be 805.10$.

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What is the answer to Wednesday's Warm-up??????

Answers

Answer:

16

Step-by-step explanation:

Answer:

h = 16

Step-by-step explanation:

Ratios:

[tex]\frac{h}{24} =\frac{4}{6} \\\\6h=96\\h=16[/tex]

Which expression says," 11 less than twice n?"
(1) 11 - 2n
(2) 11 + 2n
(3) 2n - 11
(4) 2n + 11​

Answers

Answer:(1) 11-2n is the correct answer

Step-by-step explanation:

hope it helps you

6. Find the 20 ^ (th) term of the arithmetic sequence. 42,28,14,0,-14,...

Answers

Step-by-step explanation:

[tex]U _{ {20}^{th} } = a + (n - 1)d \\ = 42 + (20 - 1) \times 14 \\ = −252[/tex]

According to a 2018 survey by Bankrate, 20% of adults in the United States save nothing for retirement (CNBC website). Suppose that sixteen adults in the United States are selected randomly. What is the probability that three or less of the selected adults have saved nothing for retirement

Answers

Answer:

0.5981 = 59.81% probability that three or less of the selected adults have saved nothing for retirement

Step-by-step explanation:

For each adult, there are only two possible outcomes. Either they save nothing for retirement, or they save something. The probability of an adult saving nothing for retirement is independent of any other adult. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

20% of adults in the United States save nothing for retirement (CNBC website).

This means that [tex]p = 0.2[/tex]

Suppose that sixteen adults in the United States are selected randomly.

This means that [tex]n = 16[/tex]

What is the probability that three or less of the selected adults have saved nothing for retirement?

This is:

[tex]P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)[/tex]

In which

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 0) = C_{16,0}.(0.2)^{0}.(0.8)^{16} = 0.0281[/tex]

[tex]P(X = 1) = C_{16,1}.(0.2)^{1}.(0.8)^{15} = 0.1126[/tex]

[tex]P(X = 2) = C_{16,2}.(0.2)^{2}.(0.8)^{14} = 0.2111[/tex]

[tex]P(X = 3) = C_{16,3}.(0.2)^{3}.(0.8)^{13} = 0.2463[/tex]

[tex]P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.0281 + 0.1126 + 0.2111 + 0.2463 = 0.5981[/tex]

0.5981 = 59.81% probability that three or less of the selected adults have saved nothing for retirement

Help!
△LMN is the result of a reflection of ​ △XYZ ​ across the y-axis.

Which angle in the image corresponds to ∠X in the pre-image?

∠L
∠M
∠N

Answers

Answer:

∠X in the pre-image will be equal to ∠L in the main image

Step-by-step explanation:

△LMN is the result of a reflection of ​ △XYZ which means △LMN is the mirror image​ △XYZ

hence, the left of △XYZ will be equivalent to the right of △LMN and the right of △XYZ will be equivalent to the left of △LMN

Hence, ∠X in the pre-image will be equal to ∠L in the main image


Select the line that is equivalent to 5x +2y=6.

Answers

Answer: It will be C, 5x + 2y = 6 is equivalent to y = -5/2x + 3

The equivalent equation for the given is y=-5/2x+3. Therefore, option A is the correct answer.

What is the equation of a line?

The general equation of a straight line is y=mx+c, where m is the gradient, and y = c is the value where the line cuts the y-axis. This number c is called the intercept on the y-axis.

The given equation is 5x +2y=6.

The equivalent equation is 2y=-5x+6

y=-5/2x+6/2

y=-5/2x+3

Therefore, option A is the correct answer.

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Select the line that is equivalent to 5x +2y=6.

A) y=-5/2x+3

B) y=5/2x-3

C) y=-2/5x+6/5

D) y=2/5x-6/5

One day, a group of people had a driving test.

40 of this group were men and the rest were women.

5/3 of the men and

3/2 of the women passed the driving test.

The number of men and women that passed the driving test was the same.

Work out the number of women that took the driving test that day.

Please some help would be greatly appreciated with this question as it is imperative to me that i solve it
thanks

Answers

Answer:

every other night another $1 getting made

Step-by-step explanation:

Answer:

eeeeeeeeeeee nose

Step-by-step explanation:

4−(3−5)=.

does anyone know what this is ??

Answers

You have to do whatever is in the parentheses first which gets you:

4-(-2)

Two negatives equal one positive so it would be:

4+2


And 4 plus 2 is of course 6.

Kaitlin walks 2.5km every day. How far does she walk in 5 days?

Answers

Answer:

12.5km

hope this helps

have a good day :)

Step-by-step explanation:

Answer:12.5Km

Step-by-step explanation:

You do 2.5 x 5

Translate into PROP, using the conventions.

a. Pia is guilty only if Raquel is.
b. Pia is guilty if Raquel is.
c. If Quinn or Raquel is guilty, then Pia is too.
d. If neither Pia nor Quinn is guilty, then neither Raquel nor Stan is guilty.
e. If Pia is guilty, then if Raquel is guilty then Quinn is guilty.

Answers

Answer:

The associated PROPS are as follows:

a:[tex]P\rightarrow R[/tex]

b: [tex]R\rightarrow P[/tex]

c:[tex](Q \vee R)\rightarrow P[/tex]

d:[tex]\sim(P \lor Q)\rightarrow \sim(R \lor S)[/tex]

e:[tex]P\rightarrow (R\rightarrow Q)[/tex]

where

P is Pia is guilty

R is Raquel is guilty

Q is Quinn is guilty

S is Stan is guilty

Step-by-step explanation:

When only if is used the conditional antecedent and consequent are interchanged thus the first one is written as such.

In addition to this, the different symbols are used such that their logical meanings are clear.

Find the area of the figure.
PLS I NEED HELP FAST I BEG YOU!

Answers

585 is correct!

LxWxH is for area

Mark with crown!

7 1/8 - 3 5/8 plz help me on this math

Answers

Answer:

7/2 or 3 1/2

Step-by-step explanation:

numbers greater than 10 from 1 to 15​

Answers

bro just count?????? 11, 12, 13, 14, 15??????

Answer:

11,12,13,14,15

Step-by-step explanation:

The number scale goes like this 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 so look at the numbers in between 10 and 15 except dont count in ten because they have to be greater the 10. so therefor 11,12,13,14,15 :)

Ron has 17 coins with a total value of $2.75. The coins are dimes (10 cents) and quarters (25 cents). How many of each coin does he have?

Ron has ___dimes and ___ quarters.

Answers

Answer:Ron has 5 dimes and 9 quarters

Step-by-step explanation:

Lets try 9 quarters,

9x25= 225

275-225=50

50/10(Dime value)

5, Ron has 5 dimes and 9 quarters

somebody please help me i’ve been stuck on this for an hour...it’s a maze work sheet so it’s one of the fractions.

Answers

Answer:

The probability is 2/11 or 7/95. I don't know if this is the correct answer but  I  am guessing it is.

Step-by-step explanation:

Hope this helps you :)

Answer:

Probability for first letter to be a vowel is 5/11. When you take it out you’re left with 10 overall letters and 4 more vowels so the probability that the second letter is a vowel is 4/10 if you already took a vowel in the first take.

Probability for your occurence is (5/11)*(4/10)=20/110=2/11

Find the value of y. It’s geometry hw! plz only answer if you know how to do this. thank you

Answers

Answer:

48

Step-by-step explanation:

Imagine that all of the other angles within the circle are gone except for the angle "y".

Now kindly look at the image.

We would be left with angle y as the inscribed angle and 96° for the measure of the intercepted arc.

The relationship between intercepted arcs and inscribed angles is that the inscribed angle is equal to half the measure of the intercepted arc.

So y is equal to half of the measure of its intercepted arc. ( Which in this case has a measure of 96° )

so y = [tex]\frac{96}{2}[/tex]

96/2=48

Hence the value of y is 48

what choices are solutions for equation x^2-3x = -5/4

Answers

Here's the solution,

=》

[tex] {x}^{2} - 3x = - \dfrac{5}{4} [/tex]

=》

[tex] {x}^{2} - 3x + \dfrac{5}{4} = 0[/tex]

now, let's multiply the whole equation with 4

=》

[tex]4 {x}^{2} - 12x + 5 = 0[/tex]

=》

[tex]4 {x}^{2} - 10x - 2x + 5= 0[/tex]

=》

[tex]2x(2x - 5) - 1(2x - 5) = 0[/tex]

=》

[tex](2x - 1)(2x - 5) = 0[/tex]

so,

Case 1. where, 2x - 5 = 0

=》

[tex]x = \dfrac{5}{2} [/tex]

case 2. where, 2x - 1 = 0

=》

[tex]x = \dfrac{1}{2} [/tex]

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