Need help with math questions. :) Please help me answer them... I will give brainless

Answer:

(3x-2)(x²-3)

Step-by-step explanation:

3x³-2x²-9x+6

=(3x³-2x²)+(-9x+6)

=x²(3x-2)-3(3x-2)

first answer must include the GCF and the second answer consists of the remaining numbers.

Answer:

The coefficient of  correlation=0.5

Step-by-step explanation:

We are given that

Covariance between the variable  x and y=18

Variance of x=16

Variance of y=81

We have to find the coefficient of correlation

We know that

Coefficient of correlation

[tex]r=\frac{covariance(x,y)}{\sqrt{variance(x)}\times \sqrt{variance(y)}}[/tex]

Using the formula

[tex]r=\frac{18}{\sqrt{16}\times \sqrt{81}}[/tex]

[tex]r=\frac{18}{4\times 9}[/tex]

[tex]r=0.5[/tex]

Hence, the coefficient of  correlation=0.5

Answer:

No solution

Step-by-step explanation:

2y - 3 - 2y = -6

2y - 2y - 3 = -6

-3 = -6

No solution

Answer:

90/100

Step-by-step explanation:

both equal 0.9

Answer:

[tex]\frac{90}{100\\}[/tex]

Step-by-step explanation:

[tex]\frac{9}{10}[/tex] equals [tex]\frac{90}{100\\}[/tex]

By multiplying the numerator and denominator of [tex]\frac{9}{10}[/tex] by 10, we get [tex]\frac{90}{100\\}[/tex] .

9 x 10 = 90

10 x 10 = 100

Answer:

The slope is m = 7/8 or 0.975

Step-by-step explanation:

Answer:

7/8

Step-by-step explanation:

Answer:

Range = 32 ; IQR = 13 ; Variance = 92.75 ; Standard deviation = 9.63

Step-by-step explanation:

Given the data:

28, 42, 58, 48, 45, 55, 60, 49, 50

Reorderd data: 28, 42, 45, 48, 49, 50, 55, 58, 60

The range: maximum - minimum

Range = 60 - 28 = 32

Interquartile range (IQR) : Q3 - Q1

Q3 = 3/4(n+1) th term. ; n = sample size

Q1 = 1/4(n+1)th term.

Using calculator :

Q3 = 56.5 ; Q1 = 43.5

IQR = 56.5 - 43.5 = 13

The variance :

Σ(X - m)^2 / n-1

m = Σx / n

Mean, m = 435 / 9 = 48.33

Variance :

[(28-48.33)^2 + (42-48.33)^2 + (45-48.33)^2 + (48-48.33)^2 + (49-48.33)^2 + (50-48.33)^2 + (55-48.33)^2 + (58-48.33)^2 + (60-48.33)^2] / 8

= 742.0001 / 8

= 92.75

Standard deviation = sqrt(Variance):

Sqrt(92.75) = 9.63

C.)

Sample mean are very close with a slightly greater Variability in the air quality of Anaheim over Pomona

Answer:

8

Step-by-step explanation:

Answer:

Your gross bi-weekly incomeis of $824.

Step-by-step explanation:

An year has 52 weeks.

In this problem:

Bi-weekly payments, that is, 52*2 = 104 payments during the year, combining $85,700.

Your bi-weekly income will be of:

$85700/104 = $824

Your gross bi-weekly incomeis of $824.

Answer:

1) 7/12

2) 35/132

Step-by-step explanation:

1) 7/12

2) 7/12x5/11=35/132

Answer:

5 is a co efficient and b is a variable together is a term, 3.79 is a constant/term the whole equation is an expression.

The total cost of buying 5 bagels and a container of cream cheese is $28.79 and in the expression 5 is constant, b is variable, and 3.79 is constant representing the cost of the container.

An expression is a combination of some mathematical symbol such that an arithmetic operator and variable such that all are constrained and create an equation.

For example 3x +5y

Given the expression for the total cost,

C = 5b + 3.79 where b is the number of bagels.

Cost of 5 bangles →

C = 5(5) + 3.79 =$ 28.79

Cost of container = $3.79

Thus b is the only variable and 5b represents the cost of bagels while by the sum of container cost 3.79 total costs are created.

Hence "The total cost is $28.39 and container cost is $3.79 while b is variable".

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Answer:

-3

Step-by-step explanation:

15 = -3(x -2)

-5=x-2

-3=x

Answer:

x = -3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define

15 = -3(x - 2)

Step 2: Solve for x

Answer:

X=.5

Step-by-step explanation:

First, I rewrite the equation:

[tex]\frac{19x}{x+9}[/tex]= [tex]\frac{x+9}{x}[/tex]

Next, Cross Multiply:

19x times x is 19x^2

x+9 times x+9 equals (x+9)^2

Write the Formula Again, Revised:

19x^2=(x+9)^2

Square Root Both Sides:

19x=x+9

Subtract x from both sides:

18x=9

Divide Both Sides by 18:

X=.5

.5 is the answer

i hope this helps!

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Answer:

im not sure im sorry

Step-by-step explanation:

not sure

I'm not sure of what your trying to find... but the slope is (10/3). The equation in  slope form is y=(10/3)x-10. The Standard form is 10x-3y=30.

Does this help?

Answer: The equation of that line is [tex]Y = 3 \frac{1}{3}x -10[/tex]

Step-by-step explanation:

Answer:

120mm

Step-by-step explanation:

Thank u....

............

Answer:

vertically Angle is correct answer

Answer:

A

Step-by-step explanation:

Answer:

umm lettders dont go in math pst this in englash

Step-by-step explanation

yeet

The commission (in dollars) did he earn last month is 540$.

We have given

A salesman earns 6% commission on all the merchandise that he sells.

Last month he sold $9000 worth of merchandise.

Salesman earns 6% =6/100=0 .06

Earning a commission means that a portion of your salary is based on the amount of sales revenue you generate or another similar performance-based goal.

So we have to determine 6% of 9000

We can be written as

=0.06 x 9000,

= 540$

The commission (in dollars) did he earn last month is 540$.

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Answer:

12)f(x)=2x-6

=》f(3)=2(3)-6

=》6-6=0

f(×)=2x-6

f(0)=-6

=》f(-2)=2(-2)-6

=》-4-6

=-10

13)h(3)=6(3)+2

=》18+2

=20

h(0)=0+2

=2

h(-2)=6(-2)+2

=》-12+2

=-10

Answer:

(x+y+z)(a+3)

Step-by-step explanation:

ax+ay+az+3x+3y+3z

=(ax+ay+az)+(3x+3y+3z)

=a(x+y+z)+3(x+y+z)

=(x+y+z)(a+3)

Answer:

-8 is one point and the arrow goes to 10

Step-by-step explanation:

The solution of the inequality is x≥ -8.

Mathematical expressions with inequalities are those in which the two sides are not equal. Contrary to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.

Given:

1/4 x ≥ - 2

Now, the solving the inequality for x we get

x ≥ -2 (4)

x≥ -8

So, the value of x should be the region where values of x should be equal to -8 and greater than -8.

That means x ≠ -7, -6, -5, ....0,1, 2, 3....

The inequality graph is attached below.

Learn more about inequality here:

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Answer:

20 is a composite number.

Ways that can be arranged:

5 x 4

10 x 2

20 x 1

Answer:

Once upon a time, there was a flock of doves that flew in search of food led by their king. One day, they had flown a long distance and were very tired. The dove king encouraged them to fly a little further. The smallest dove picked up speed and found some rice scattered beneath a banyan tree. So all the doves landed and began to eat.

Suddenly a net fell over them and they were all trapped. They saw a hunter approaching carrying a huge club. The doves desperately fluttered their wings trying to get out, but to no avail. The king had an idea. He advised all the doves to fly up together carrying the net with them. He said that there was strength in unity.

Each dove picked up a portion of the net and together they flew off carrying the net with them. The hunter looked up in astonishment. He tried to follow them, but they were flying high over hills and valleys. They flew to a hill near a city of temples where there lived a mouse who could help them. He was a faithful friend of the dove king.

Answer:

B.

Step-by-step explanation:

It is the right answer, I promise.

Answer:

It is B. Length = 22 Feet, Width = 20 Feet

Step-by-step explanation:

I got it right once

Answer:

[tex] Area \: of \: rhombus =96\: cm^2 [/tex]

Step-by-step explanation:

[tex] d_1= 2\times 8 = 16\: cm[/tex]

[tex] d_2= 2\times 6 = 12\: cm[/tex]

[tex] Area \: of \: rhombus =\frac{1}{2} d_1d_2[/tex]

[tex] Area \: of \: rhombus =\frac{1}{2}\times 16 \times 12[/tex]

[tex] Area \: of \: rhombus =8 \times 12[/tex]

[tex] Area \: of \: rhombus =96\: cm^2 [/tex]