pls help
Use quadratic regression to find
the equation of the parabola
going through these 3 points.
(-1,-23), (-3,-67), (2,13)
y = [ ? ]x2 + [ ]x + [ ]

Answer:

Step-by-step explanation:

slope= (y1-y2)/(x1-x2) = (-4--1)/(-3-0) = -3/-3 = 1

y-intercept = y1 = -4

y=mx+b = y=1x-4

hope this helps!

Answer:

38hours59minutes

Step-by-step explanation:

Answer:

38 hours and 59 minutes

Hope this helps! Good luck! :)

(5x - 2)²

Step-by-step explanation:

25x² - 20 + 4

(5x - 2)(5x - 2)

(5x - 2)²

Answer: (5x-2)^2

Step-by-step explanation: I just thought of the answer

Answer:

x = 6

Step-by-step explanation:

To solve the value of x

3(x-2)=12

First solve the brackets

3x -6 = 12

Now Transpose

3x = 12 + 6

3x = 18

x = 18 ÷ 3

x = 6

The value of x will be 6

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Blank 1 [tex]\rightarrow[/tex] 4200

Blank 2 [tex]\rightarrow[/tex] -600

Blank 3 [tex]\rightarrow[/tex]

Answer:

341

Step-by-step explanation:

multiply 31 by 11

Answer: If ray KM is the bisector of ∠AKB, then K is the endpoint of the ray and the vertex of the angle. We know that ∠AKM and ∠BKM are congruent.

Step-by-step explanation:

The underlined words are the words missing in the blanks.

Answer:

Step-by-step explanation:

We have to do an expression doing A - B

So we have to subtract A-B, let us see what we can do.

Distance between AB

= A - B

B = 0.5

A = -2.5

 = 0.5 - (-2.5)

= 0.5 + 2.5

= 3

The additional inverse of the number a is the number that, when added to a , yields zero.

negation of each other

Answer:

The domain is -3 ≤ x ≤ 2. The range is -4 ≤ y ≤ -1

Step-by-step explanation:

The domain of a function is the set of possible x-values and the range is the resulting set of y-values

Answer:

This weekend I played basketball

Step-by-step explanation:

I practiced my jumpshot

layups

etc

Answer:

[tex]x(x - 1) - {x}^{2} + 2x = 5 \\ {x}^{2} - x - {x}^{2} + 2x = 5 \\ \therefore \: x \: = 5[/tex]

Answer:

x=5

Step-by-step explanation:

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

expand by using distributive property

[tex]x^2-x-x^2+2x=5[/tex]

simplify

x=5

check work by substituting 5 into the original equation and simplify

use PEMDAS

[tex]5(5-1)-5^2+2(5)=5[/tex]

[tex]5(4)-25+10=5[/tex]

add and subtract  (left to right)

20-25+10=5

5=5

The equation is true, thus x=5

Step-by-step explanation:

(0.05)²

CHANGE 0.05 INTO SCIENTIFIC NOTATION

= (5 × 10^-2)²

SQUARE IT OFF EACH NUMBER

= 5² × (10^-2)²

=25 × 10^-4

=0.025

Answer:

.05×.05=.0025 because it is squared

Answer:

Steps and solution in the attached picture.

Step-by-step explanation:

Steps and solution in the attached picture.

Answer:

ewan hahahahahahhhahaahahahah

________

[tex] \: [/tex]

c² = a² + b²

c² = 1² + (√3)²

c² = 1 + 3

c² = 4

c = √4

c = 2

[tex] = \: \: x \times ( {x}^{2} + 4)[/tex]

Step-by-step explanation:

[tex] {x}^{3} + 4x \\ \\ factor \: \: the \: \: expressions \: \: \\ \\ factor \: xfrom \: th e \: expression \\ \\ there \: for \: \: the \: factor \: is \\ x \times \: ( {x}^{2} + 4)[/tex]

hope it helps

for 2 answers are -6/5, -3 and 3

Step-by-step explanation:

i don't know answer for 1 and 3 but i can help u with 2

5x^3 + 6x^2 - 45x - 54

x^2( 5x + 6) -9(5x-6)

(5x+6)(x^2 - 9)

5x+6=0 x^2-9=0

5x= -6 x^2= 9

x= -6/5 x= -3 or 3

Answer:

755 gram lighter

Step-by-step explanation:

Convert 1.1kg into gram by multiplying it with 1000

1.1 x 1000= 1100 and we take this amount and subtract it with 345g

1100-345= 755g

Answer:

(0,-6)

Step-by-step explanation:

3x-4y=24

To find the y intercept, let x =0 and solve for y

3(0) -4y =24

-4y =24

Divide by -4

-4y/-4 = 24/-4

y = -6

The y intercept is

(0,-6)

Answer:

Answer: Option D

Answer: Option DStep-by-step explanation:

• In distributive property, we multiply the factor to each term in the bracket. So that the reverse is true.

Take an example;

[tex] \dashrightarrow \: { \rm{x(y + z)}}[/tex]

• To apply distributive property, mulyiply both y and z by x following the addition operation.

summary:

[tex] \dashrightarrow \: { \rm{xy + xz}}[/tex]

→ The expression above is the expansion using distributive property.

• Back to the question, we are given a factorised expression;

[tex]{ \rm{6(8 - \frac{1}{3} )}} \\ [/tex]

• To apply the distributive property, multiply 8 and ⅓ by 6:

[tex] \dashrightarrow \: { \boxed{ \boxed{ \rm{ \: (6 \: • \: 8 - 6 \: • \: \frac{1}{3}) }}}} \\ [/tex]

A percentage is out of 100%.

19 (questions right) / 28 (total) = 0.67857142857

Round to the tenth, 67.9.

Answer:

Kanisha's test score is approximately 67.8571 percent.

Step-by-step explanation:

19/28 is about 67.8571, just under the 68 percent passing score. However, if her test score is rounded up, it will exactly meet the lowest passing score.

Answer:

option 3

Step-by-step explanation:

Answer:

one solution i believe

Step-by-step explanation:

x = 3

Answer:

Step-by-step explanation:

HOPE IT HELPS

Answer:

2nd option

Step-by-step explanation:

tan x = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{MO}{MN}[/tex] = [tex]\frac{8}{15}[/tex]

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Using Trigonometry,

Total students = 16

1. Total 9th graders = 3

Probability of being 9th grader = 3/16

2. Total that like comedy = 6

Probability = 6/16 = 3/8

3. 3 like action so 16-3 = 13 do not.

Probability = 13/16

4. 1 10th grader likes comedy out of 5 10th graders

Probability = 1/5

5. 0 out of 3 12th graders like comedy.

Probability = 0

6. 0 like action out of 3

Probability = 3/3 = 1

7. Yes the probabilities are different.

Answer:

1. P) 3/16

2. P)  6/16  or 3/8

3. P)  13/16   as  1- 3/16 = 13/16

4. P)  2/3

5. P) 1/5  

6. P) 3/3 = 1

7. Yes as such grades do not represent the no of people shown on the table

Answer:

tortilla chips, sails on boats, and slices of pizza

Step-by-step explanation:

Answer:

Nacho chips

Sails (As in sails on a sailing boat)

Sanwiches

Rooves