PLease help! Thanks!

Answer:

3(x -1) / (x + 1)(x + 2).

Step-by-step explanation:

(x-1)/(x^2-2x-3)].[(3x-9)/(x+2)

Factoring the denominator  and 3x - 9:

= (x - 1) / (x + 1)(x - 3)  *  3(x - 3) / (x + 2)

The (x - 3)'s  cancel out, so we have:

(x - 1)/(x + 1) * 3 / (x + 2)

= 3(x -1) / (x + 1)(x + 2).

Answer:

this one hard

Step-by-step explanation:

Answer:

the answer is a bc the 1 in this makes sense

Step-by-step explanation:

thats is the best answer i think

The approximate value of the correlation coefficient for the given graph is 5.

To calculate the correlation coefficient, we first need to determine the equation of the line that passes through the points (0, 35) and (6, 5).

The formula for the equation of a straight line is y = mx + b, where "m" is the slope and "b" is the y-intercept.

Given two points (x₁, y₁) = (0, 35) and (x₂, y₂) = (6, 5), we can find the slope "m" as follows:

m = (y₂ - y₁) / (x₂ - x₁)

m = (5 - 35) / (6 - 0)

m = -30 / 6

m = -5

Now that we have the slope "m" as -5, we can find the y-intercept "b" by using one of the given points, say (0, 35):

y = mx + b

35 = -5(0) + b

35 = b

So, the equation of the line is y = -5x + 35.

Now, we can use this line to calculate the correlation coefficient "r" for the given graph.

The correlation coefficient "r" is given by the formula:

r = ∑((xᵢ - x')(yᵢ - y')) / √(∑(xᵢ - x')² ∑(yᵢ - y')²)

where (xᵢ, yᵢ) are the data points, x' is the mean of the x-values, ȳ is the mean of the y-values, and ∑ represents the sum.

Without actual data points, we can still deduce the correlation coefficient from the slope "m" of the line. The correlation coefficient for a linear relationship is equal to the square root of the coefficient of determination (R-squared), which is the square of the slope "m" in this case.

So, the correlation coefficient (R) is:

R = √((-5)²) = √25 ≈ 5

Therefore, the approximate value of the correlation coefficient for the given graph is 5.

The correct option is: B. 5

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Complete Question:

What is the approximate value of the correlation coefficient for the given graph?

A. 1

B. 5

C. 3

D. -1

Answer:

34.6

Step-by-step explanation:

In this triangle we have an angle which is 38° and the side opposite to it which is 27 and we have to find the adjacent side

There is only one formula which have these two sides

tan

tan∅ = opposite ÷ adjacent

tan 38° = 27 ÷ x

x = 27 ÷ (tan 38°)

x = 34.56

x≈ 34.6

Answer:

35

Step-by-step explanation:

put 3 1/2 as a decimal = 3.5, now move the dot one place to the right to times by ten = 35.

Explanation:

If the sample is biased, then it does not represent the population. A biased sample favors one or more groups over others.

For example, if the sample consisted of only men, then the sample is biased toward men and leaves out women from the group. Hence, this sample does not represent everyone.

Answer:

0.01462069 cost per tablespoon

Step-by-step explanation:

a bag of sugar costs $2.12

145 tablespoons of sugar

145:2.12 is the ratio

1:x where x represents per tablespoon cost

2.12 / 145 = 0.01462069 which rounds up to 0.02

Check if it correct:

145 x 0.01462069 = 2.12

Answer:

I think it might be 156 square milimeters. I could be totally wrong though.

Step-by-step explanation:

Answer:

The segment bisector is MN

Step-by-step explanation:

MN divides XY into two equal lengths

Answer:

Step-by-step explanation:

Answer: 6889.

( 9 × 10^ − 7 )^ 2

standard form 6889.

Using proportions, it is found that Bob will be 90 feet from the surface of the water after 2 minutes.

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

In this problem, every half-minute, he ascends 15 feet. Hence in 2 minutes = 4 half-minutes, he will have ascended 15 x 4 = 60 feet.

He is 150 feet below the surface of the water, hence after 2 minutes he will be 150 - 60 = 90 feet from the surface of the water.

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Answer:

3√10/5

Step-by-step explanation:

[tex]\frac{3\sqrt{6} }{\sqrt{15} }[/tex]

Rationalize √15

[tex]\hookrightarrow \frac{3\sqrt{6} }{\sqrt{15}}\times\frac{\sqrt{15} }{\sqrt{15} } \\\\\hookrightarrow \frac{3\sqrt{6} \times\sqrt{15} }{15} \\\\\hookrightarrow \frac{3\sqrt{90}}{15} \\\\\hookrightarrow \frac{3\sqrt{10} }{5} \\\\[/tex]

Answer:

Here is the solution...hope it helps:)

Answer:

The value of x in 15x=3, is 1/5 or 0.2

If a constant is added to a variable then the graph gets shifted toward left and vice-versa. Then the graphs are shown below.

It's the locus of a moving point that keeps the same distance between a stationary point and a specified line. The focus is a non-movable point, while the directrix is a non-movable line.

The parabola is given below.

f(x) = x²

Then the parabolas with respect to the position of their vertices from left to right will be

1: y = f(x) = x²

2: y = f(x - 4) = (x - 4)²

3: y = f(x + 3) = (x + 3)²

4: y = f(x - 7) = (x - 7)²

5: y = f(x + 2) = (x + 2)²

6: y = f(x - 1/2) = (x - 1/2)²

The graph of the parabola is given below.

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Answer:

A. 10.4

Step-by-step explanation:

180-128=52÷5=10.4

Answer:

46

Step-by-step explanation:

“the product of 6 and 9 decreased by 8"

“the product of 6 and 9" = 6 * 9

"decreased by 8" = - 8 (subtract 8 from whatever, in this case 6 * 9)

“the product of 6 and 9 decreased by 8" = 6 * 9 - 8 = 46

The speed of the tractor's tire by means of the information given is; 547.06.

According to the task content;

On this note, the speed of the tractor is;

Speed = (πr²) ÷ 4.5

Speed = (3.14×28²)/4.5

Speed = 547.06

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Answer:

Sue

Step-by-step explanation:

34/2= 17 which is the highest out of them all.

Answer:

D.9 cu.m

Step-by-step explanation:

measurements varies,so it is a cuboid

volume of cuboid= length×breadth×height

=3×1.5×2

=9 cu.m

Answer:

   4. 132°

   5. 41°

Step-by-step explanation:

Q4

Q5

mRP

The angle will be twice the m<Q

So

it's

#2

m<ABC

The measure of the angle θ in the graph as described in the task content is; 135⁰.

From the task content, it follows that we are required to determine the measure of angle θ in the graph as described.

Since, angle θ transverses the first quarter in the counterclockwise direction, it follows that the measure of angle θ by convention is; 90+45 = 135⁰.

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Answer:

  -4 < x ≤ -3

Step-by-step explanation:

The compound inequality needs to be separated into its two parts in order to obtain a solution.

__

We can do a little preliminary work to make the solutions easier.

  2x +6 ≤ x +3 < 3x +11 . . . . . given

  x +3 ≤ 0 < 2x +8 . . . . . . . . subtract x+3

  x +3 ≤ 0

  x ≤ -3 . . . . . . . subtract 3

  0 < 2x +8

  0 < x +4 . . . . divide by 2

  -4 < x . . . . . . subtract 4

Now, we can rearrange these back into a compound inequality.

  -4 < x ≤ -3

_____

The graphing calculator shows the same solution.

Answer:

x = 2 and x = 3

Step by step explanation:

[tex]~~~~~~x = 2 +\sqrt{x-2}\\\\\implies x -2 =\sqrt{x-2}\\\\\implies (x-2)^2 = x-2 ~~~~~~~~~~~~~~~;[\text{Square both sides}]\\\\\implies x^2 -4x+4-x +2 = 0\\\\\implies x^2-5x+6 = 0\\\\\implies x^2-3x-2x+6=0\\\\\implies x(x-3)-2(x-3) = 0\\\\\implies (x-2)(x-3) = 0\\\\\implies x =2,~~x = 3\\\\\textbf{Verifying solutions:}\\\\\text{For x =2,}\\\\2= 2+\sqrt{2-2} \implies 2 = 2~ \\\\ \text{So, x = 2 is a solution.}\\\\\text{For x =3,}\\\\3 = 2+\sqrt{3-2}\implies 3=2+1 \implies 3=3\\ \\[/tex]

[tex]\text{So, x = 3 is a solution.}[/tex]

Answer:

1.021769

Step-by-step explanation:

(2 x 2^18 )/(329 + 512789)

=(2 x 262.144)/(513118)

=(524.288)/(513118)

=1.021769

Answer:

$15

Step-by-step explanation:

Range = Highest number- Lowest number

Range=20-5

=$15

Answer:

5

Step-by-step explanation:

Answer:

57°

Step-by-step explanation:

Given line is straight line

then whole angle is 180°

then 180 - 123 = a = 57

Answer:

Step-by-step explanation:

What we know is:

We don't know:

So, we add both angles up to 180°:

Lets solve 180 - 123: