Solve by factoring

x^2 - 8x - 84 = 0

Show all work

Answer:

( -2 , -1 ) , ( -2 , 3 ) , ( 1 , 0 )

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The residual plot will be the one showing the difference between the students that were expected to enroll and the real number of students who enroll.

A residual plot is one plot that shows the error or the residual.

In this case, the residual plot will show the difference between the students that were expected to enroll based on the equation given and the real number of students who enroll.

Note: This question is incomplete because the options are not given; due to this, the answer is based on general knowledge.

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Answer:

Question 1: Option B

Question 2: Option A

Step-by-step explanation:

Question #1:

Options are:

10¹¹ = 100000000000

10¹⁴ = 100000000000000

10¹⁵ = 1000000000000000

10¹² = 1000000000000

The power that exceeds the given quantity would be:

10¹⁴ ⇒ There are more digits.

Question #2:

We have the following expression:

981 44/51 = 61*981+44/61 = 981.72

We have to 10³ = 1000
So, the correct option is 10³

Answer:

6j-2j-2j+8+9+6e+5

= 6j - 4j + 6e + 24

= 2j + 6e + 24

Answer:

A

Step-by-step explanation:

In this example, Emily is adding 9 to both sides of the equation. Doing so keeps the equation equal since the operation was done to both sides, so this must be the addition property of equality.

Answer:

c

Step-by-step explanation:

Answer:

Whats remind?

Step-by-step explanation:

Answer:

90 degrees :)

Step-by-step explanation:

x and 90 are supplementary.

x + 90 = 180

x = 90

Answer:

Decile

Step-by-step explanation:

Quartile only divides group into 4 => 25%, 50%, 75%, 100%

Decile divides group into 10 => 10%, 20%,..., 80%, 90%, 100%

Answer:

(y+2) / y

Step-by-step explanation:

Just do what is says     f(x ) = (y+2) / y

Answer:

8 pigs are there according to the questions because in question there is told that there are pigs as well as ducks

Answer:

Whenever finding a rule, figure out what x+1 relates to in terms of y (aka the slope). Also, figure out the y-intercept (0,y)

Example:

x+1 = y+2.

Slope: 2 ÷ 1 = 2.

The y-intercept is (0,9)

This would make the rule y=2x+9

Answer:

1. y=x 2. y=x-2 3. y=2x+10 4. y=5x 5. y= x+21

Step-by-step explanation:

Answer:

X=26

Combine multiplied terms into a single fraction to make the question more simple.

EX: 3(2x-16)/4

Answer:

x=26

Step-by-step explanation:

3/4(2x-16)=27

3/4×2(x-8)=27

3/2(x-8)=27

x-8=27×2/3

x-8=9×2

x-8=18

x=18+8

x=26

Answer:

which question

Step-by-step explanation:

give us clarity please

Check the picture below.

Answer:

jews

Step-by-step explanation:

Answer:

Christians.

Step-by-step explanation:

Answer:

24x-18+6

Step-by-step explanation:

24x-18+6, 6+-18=-12, 24x-12=24x-2

Answer:

x=13

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    (2*x+14)-((3*x+1))=0

1.1      Solve  :    -x+13 = 0

Subtract  13  from both sides of the equation :

                     -x = -13

Multiply both sides of the equation by (-1) :  x = 13

Answer:

Sample proportion (phat) = 180/400 = 0.45z-critical value for 95% confidence interval is z-score for probability = 0.975 = 1.96CI = phat +/- z-critical value * sqrt((phat)(1-phat)/sample size)      = 0.45 +/- 1.96 * sqrt(0.45 * 0.55/400)    = 0.45 +/- 0.049     = 0.401, 0.499

Agree

-(-7) would be positive 7 which is what is plotted.

Also the other two numbers are also plotted

Answer:

Agree with all three

Step-by-step explanation:

The points displayed on the numberline are -2, 1, and 7. The points given to you are -(-7), 1, and -2. Because -(-7) = 7, and 1 = 1, and -2 = -2. All three numbers given are ineed plotted on the numberline below.

Answer:

The answer is a angle indicated to this answer

if is right mark me the brainliest if not don't worry please

The Answer would be: V≈ 376.99

The required trigonometric identity is 1/2[sin(x + y) - sin(x - y)] = cosxsiny

To answer the question, we need to know what trigonometric identities are

Trigonometric identities are relationships between the trigonometic ratios.

Since we require cosxsiny

Given that

So, subtracting both expressions, we have

sin(x + y) - sin(x - y) = sinxcosy + cosxsiny - (sinxcosy - cosxsiny)

= sinxcosy + cosxsiny - sinxcosy + cosxsiny

= sinxcosy - sinxcosy + cosxsiny  + cosxsiny

= 0 + 2cosxsiny

= 2cosxsiny

sin(x + y) - sin(x - y) = 2cosxsiny

Dividing through by 2, we have

1/2[sin(x + y) - sin(x - y)] = cosxsiny

So, the required trigonometric identity is 1/2[sin(x + y) - sin(x - y)] = cosxsiny

Learn more about trigonometric identities here:

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[tex]~~~~0.3x +0.2 = 5\\\\\implies 3x+2 = 50~~~~~~;[\text{Multiply both sides by 10}]\\\\\implies 3x = 50 -2\\\\\implies 3x = 48\\\\\implies x = \dfrac{48}3\\\\\implies x = 16[/tex]

Answer:

D - 56

Step-by-step explanation:

Multiply the height, 4 inches, the length, 7 inches, and the width, 2 inches, to get 56.

Given:

radius(R) = 12 units

arc = 134°

Find: area of sector

Plan: if you think about it, a sector area is a fractional part of the full area of the circle. It’s a pie piece.

A(circle) = π R^2

134° is 134°/360° = 67/180 That is 67/180 th of the full circle

area (S) = 67/180 (π R^2)

S = 67/180 (π )(12^2) = 67/180(144 π) = 54 π units^2 or

≈ 54(3.1416) ≈ 168.389 units^2

Double Check: ✅ ✅

Answer: 18 π units^2 or 168.39 units^2 approximately

Answer:

$400

Step-by-step explanation:

Hope the picture will help you........

Answer:

vertex = (0, -4)

equation of the parabola:  [tex]y=3x^2-4[/tex]

Step-by-step explanation:

Given:

Vertex form of a parabola:  [tex]y=a(x-h)^2+k[/tex]

(where (h, k) is the vertex and [tex]a[/tex] is some constant)

Substitute point (0, -4) into the equation:

[tex]\begin{aligned}\textsf{At}\:(0,-4) \implies a(0-h)^2+k &=-4\\ah^2+k &=-4\end{aligned}[/tex]

Substitute point (-2, 8) and [tex]ah^2+k=-4[/tex] into the equation:

[tex]\begin{aligned}\textsf{At}\:(-2,8) \implies a(-2-h)^2+k &=8\\a(4+4h+h^2)+k &=8\\4a+4ah+ah^2+k &=8\\\implies 4a+4ah-4&=8\\4a(1+h)&=12\\a(1+h)&=3\end{aligned}[/tex]

Substitute point (1, -1) and [tex]ah^2+k=-4[/tex] into the equation:

[tex]\begin{aligned}\textsf{At}\:(1.-1) \implies a(1-h)^2+k &=-1\\a(1-2h+h^2)+k &=-1\\a-2ah+ah^2+k &=-1\\\implies a-2ah-4&=-1\\a(1-2h)&=3\end{aligned}[/tex]

Equate to find h:

[tex]\begin{aligned}\implies a(1+h) &=a(1-2h)\\1+h &=1-2h\\3h &=0\\h &=0\end{aligned}[/tex]

Substitute found value of h into one of the equations to find a:

[tex]\begin{aligned}\implies a(1+0) &=3\\a &=3\end{aligned}[/tex]

Substitute found values of h and a to find k:

[tex]\begin{aligned}\implies ah^2+k&=-4\\(3)(0)^2+k &=-4\\k &=-4\end{aligned}[/tex]

Therefore, the equation of the parabola in vertex form is:

[tex]\implies y=3(x-0)^2-4=3x^2-4[/tex]

So the vertex of the parabola is (0, -4)

It can be solved through some shortcut tricks of parabola

It passes through (-2,8) and (1,-1)

The minimum equation of the parabola (as it's quadratic) for vertex at (0,0)

whatever our required parabola be it's translated from the above one

So

Let a be 0

So it has vertex as well as y inetrcept at (0,0)

For x=-2

For x=1

It wasn't negative but in translation it's negative so something is subtracted

Take a =2 and subtract (-2)² i.e 4 as it's minimal value of y=x² where x≠y

For

(-2,8)

No try a=3

Yes satisfied

Take (1,-1)

Verified

The required equation is