Data collected on the depth of the Mississippi River and the water discharge are given in the table:
Depth Discharge (ft3)
1.59 63
2.90 97
3.10 123
3.31 254
3.31 398
4.27 550
4.55 583
6.67 603
6.79 655
6.82 726

Find r2, and interpret the results. (4 points)
0.81; The least-squares regression line, given by ŷ = −126.08 + 122.67x, is not a good fit for the data.
0.90; The least-squares regression line, given by ŷ = −126.08 + 122.67x, is a good fit for the data.
0.81; The least-squares regression line, given by ŷ = −126.08 + 122.67x, is a good fit to the data.
0.81; The least-squares regression line, given by ŷ = 122.67 − 126.08x, is a good fit to the data.
0.90; The least-squares regression line, given by ŷ = 122.67 − 126.08x, is not a good fit to the data.

Answers

Answer 1

Answer:

C. 0.81; The least-squares regression line, given by ŷ = −126.08 + 122.67x, is a good fit to the data.


Related Questions

7(1 - x) = -3(x - 2)

Answers

Answer:

the answer is x= 1/4 :D .....

Answer: bro its x=1 over 4

Step-by-step explanation:

Can someone help me with geometry??

Answers

Answer:

B

Step-by-step explanation:

A local grocery store sells frozen fish sticks in packages of 18. If the cost for a package of 18 frozen fish sticks is $1.95, what is the approximate cost per frozen fish stick?

Answers

Answer:

$0.11 per frozen fish stick

Step-by-step explanation:

If a package of 18 fish sticks cost $1.95, to find the cost per frozen fish stick you need to divide $1.95 by 18

$1.95 / 18 frozen fish stick = $0.108 or $0.11 per frozen fish stick

what is the equation for the line in slope intercept form plz help ASAP

Answers

Answer:

y = - 4x + 5

Step-by-step explanation:

y = mx + b

(0, b) y-intercept

m = [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]

~~~~~~~~~~

( - 2, 13)

(0, 5) <----- y-intercept

(3, - 7)

(4, - 11)

m = [tex]\frac{-11+7}{4-3}[/tex] = - 4

y = - 4x + 5

Which is the graph of the function f(x) = 1/2x2+2x-6?

Answers

Answer:

This is how the graph would look like

Step-by-step explanation:

The graph of the function [tex]f(x) = 0.5x^{2} + 2x - 6[/tex] is attached below.

What is plotting of graph of a function?

The graph of the function [tex]f(x) = 0.5x^{2} + 2x - 6[/tex] can be created by plotting a few coordinates that lie on the function.

When x = 0, y = -6

Coordinate = (0, -6)

When y = 0,   [tex]0.5x^{2} + 2x - 6 = 0[/tex]

[tex]x^{2} + 4x - 12 = 0\\\\x^{2} + 6x - 2x - 12 = 0\\\\x(x+6) - 2(x+6) = 0\\\\(x-2)(x+6) = 0\\\\x = 2, -6\\[/tex]

Coordinates = (2,0), (-6,0)

Abscissa of vertex of graph = -b/2a = -2

Ordinate of vertex of graph = 0.5 *4 -4 - 6 = -8

coordinate = (-2, -8)

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If (p, q) is the solution to the system of equations, what is the value of q?

−16p − 2q = 100
p − 4q = 200

A) 0
B) −10
C) −25
D) −50

Answers

Answer:

1

Step-by-step explanation:

Maricella solves for x in the equation 4 x minus 2 (3 x minus 4) + 4 = negative x + 3 (x + 1) + 1. She begins by adding –4 + 4 on the left side of the equation and 1 + 1 on the right side of the equation. Which best explains why Maricella’s strategy is incorrect?

Answers

Answer:

It is wrong because she should simplify both sides of the equation,distribute, combine like terms,subtract and divide to get the final answer.

4x−2(3x−4)+4=−x+3(x+1)+1

Step 1: Simplify both sides of the equation.

4x−2(3x−4)+4=−x+3(x+1)+1

4x+(−2)(3x)+(−2)(−4)+4=−x+(3)(x)+(3)(1)+1(Distribute)

4x+−6x+8+4=−x+3x+3+1

(4x+−6x)+(8+4)=(−x+3x)+(3+1)(Combine Like Terms)

−2x+12=2x+4

−2x+12=2x+4

Step 2: Subtract 2x from both sides.

−2x+12−2x=2x+4−2x

−4x+12=4

Step 3: Subtract 12 from both sides.

−4x+12−12=4−12

−4x=−8

Step 4: Divide both sides by -4.

−4x−4=−8−4

x=2

Answer:

x=2

Answer:

it is in order to combine like terms on one side of the equation, the inverse operations must be used

Step-by-step explanation:

trust me I took it on edge

3125x=−62 value of x.

Answers

Answer:

x= -0.01984

Step-by-step explanation:

You divide both sides by 3125 to get x alone.

You get x=-0.01984

Hope this helps!

m = ab + 3c Solve for a

Answers

Answer:

[tex]\frac{M-3c}{b}=a[/tex]

Step-by-step explanation:

[tex]M=ab+3c\\M-3c=ab\\\frac{M-3c}{b}=a[/tex]

Answer:

[tex]\frac{m - 3c}{b} = a[/tex]

Step-by-step explanation:

m = ab + 3c

-3c        - 3c

m - 3c = ab

[tex]\frac{m - 3c}{b} = \frac{ab}{b}[/tex]

[tex]\frac{m - 3c}{b} = a[/tex]

A moving company drove one of its trucks 100,042 miles one year. A second truck was
driven 98,117 miles, and a third truck was driven 120,890 miles. How many miles
were driven by all three trucks?








HELP ME PLEASE IVE BEEN STUCK FOR HOURS ON THIS!!!!!!

Answers

319049

as 100,042 + 98,117 + 120,890 = 319,049

Simplify the expression
(-a)^-18

Answers

Answer: it is the first option in the photo so A

Which of the following can be used to find the measure of angle C, angle D, and ankle E?

A-Pythagorean Theorem

B-Triangle Sum Theorem

C-Isosceles Triangle Theorem

D-AAA Postulate Theorem

Answers

The correct answer is B

Martina took a math test and answered 17 out of 20 questions correctly. What percent of the questions did Martina answer correctly?

Answers

Answer:

85%

Step-by-step explanation:

The town of Simpsonville has two tow truck companies. Company A charges an initial fee of $30 plus $2 per mile. Company B charges an initial fee of $20 plus $4 per mile. Use the graph to determine when it's cheaper to use Company B instead of Company A. Question 11 options: A) Towing 5 miles

Answers

Answer:

What are the other options? Any option with a number of miles less than 5 is right

Step-by-step explanation:

Answer:underlined and bold is answer!!

A)

Towing 5 miles

B)

Towing more than 5 miles

C)

Towing more than 5 miles but less than 15 miles

D)

TOWING  FEWER THAN 5 MILES

Step-by-step explanation:

evaluate the expression for the give value of the variable.
3d — 4
d = 1.2

Answers

Use substitution
3(1.2) - 4
3.6 - 4 = -0.4

Identify the slope and y-intercept of the line for each equation.
7. y = -5x-3/4
8. y = 1/4x+5​

Answers

Answer:

7. Slope = -5

Y-intercept = -3/4

8. Slope = 1/4

Y-intercept = 5

Step-by-step explanation:

y = mx + b

Slope = m

Y-intercept = b

Can somebody help me with this please?

Answers

its an eqilateral triangle. they are always “positioned” at 180 degrees.

help please will mark brainliest

Answers

Answer:

1.) 20z^5

2.) 8m^5 · 6p^7 · 3mp^0

Step-by-step explanation:

4z^3 · z^2 · 5z

first, multiply 4z · 1z = 4z and add the exponents 3 + 2 = 5

4z^5 · 5z

multiply 4z · 5z and keep the exponents

20z^5

2m^3p^4 · 4m^2p^3 · 3mp^0

find just the "m" variables: 2m^3 · 4m^2 and same as before multiply then add the exponents = 8m^5

now do the same for the "p" variables: 3p^4 · 2p^3 = 6p^7

and for the "mp" variable: 3mp^0

put it all together and this is the simplest form because we don;t know the values of the variables:

8m^5 · 6p^7 · 3mp^0

Hope this helps! If you have any additional questions please don't hesitate to ask me or your teacher to be sure you master the subject. :) Stay safe and please mark brainliest!

HELP ME ASAP PLEASSSSE?!?!
What is the measure of A?

Answers

Answer:

D. 50

Step-by-step explanation:

Answer:

50°

Step-by-step explanation:

180-130=50

67,132 divided by 7= ?
Round your answer to the nearest tenth.

Answers

Answer:

DONE!

Step-by-step explanation:

67132/7 = 9590.28571429

Rounded to the nearest tenth: 9590.3

Answer:

9590.3

Step-by-step explanation:

finally got to answer lol

can someone please help me .. will mark brainliest !

Answers

Answer:

a

Step-by-step explanation:

i don't really know just Draco told me i should answer this

Help tell me which one is supposed to go with which. Answer as quick as possible

Answers

Answer:

(-7,5)

Step-by-step explanation:

Have a Great Dayy

Peter rolls 2 fair dice and adds the results from each.
Work out the probability of getting a total of 11.

Hi please answer urgently

Answers

Answer:

5+6=11

So,the probability to get 11 is 5+6

Step-by-step explanation:

Answer:

5 + 6 = 11

Step-by-step explanation:

a dice contains 6 numbers

1, 2, 3, 4, 5 and 6

Peter rolls 2 fair dice and adds the results from each.

So, 5 + 6 = 11

in fraction = 2/11

-TheUnknownScientist

Si el ∡P y el ∡Q son ángulos alternos internos, y la medida de un ángulo suplementario a uno de ellos mide 135° ,¿cuánto miden el ∡P y el ∡Q respectivamente?

Answers

Answer:

so sorry

Step-by-step explanation:

wish I could help but I don't know how to do it

Kylie is preparing for the science fair that will take place in six weeks. She has three plants that she has grown from seeds, which she considers to have height 0 centimeters, and she is measuring their heights as she applies different treatments to each. The second plant is receiving Plant Food B. After 3 weeks, it is 10 centimeters tall. If it continues growing at this rate, how tall will it be after 6 weeks?

Answers

Might be 20 cm going based off the information after 6 weeks

The height of plant B growing at a rate of 3.33 centimeters per week should have a height of 19.98 cms.

What are lines and their slopes?

We know lines have various types of equations, the general type is

Ax + By + c = 0, and equation of a line in slope-intercept form is y = mx + b.

Where slope = m and b = y-intercept.

the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.

First we need two points (x, y) to obtain the slope.

Assuming height to be 'y' and weeks to be 'x'.

Therefore, (0, 0) and (3, 10) are the two points.

Slope(m) = (10 0)/(3 - 0).

Slope(m) = 10/3.

Slope(m) = 3.33

Now, To obtain the y-intercept.

10 = 3(3.33) + b

b = 0.01 Or neglegible.

Therefore y = 3.3x.

Now, In the 6th week, the height of plant B will be,

y = 3.33(6).

y = 19.98 or 20 cm.

learn more about lines and slopes here :

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what is the area of a rectangular prism


MATHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH

Answers

Answer:

A=2

Step-by-step explanation:

Answer:

A=2(wl+hl+hw)

This is the formula but what is the prism you want the area for.

If correct will mark brainliest!!!!!

Answers

Answer:

Step-by-step explanation:

1 - right triangle

2 - Acute triangle

3 - Acute triangle

4 - Obtuse triangle

5 - Acute triangle

Answer:

1. right

2. obtuse

3. acute

4. obtuse

5. acute

Step-by-step explanation:

What is the ordered pair after this point is reflected across the y-axis? 4,2

Answers

Answer:

-4,2

Step-by-step explanation:

a reflection across the y axis means the y values stay the same and the x values change sign

need help. pls help. i suck at math. math is a no no for me. help me pls.​

Answers

Answer:

A5#A

Step-by-step explanation:

Three friends grow groups of sunflowers.
Some think that Anna’s flowers are the tallest because the mean height of her flowers is the greatest.
Others think Anna’s flowers are the shortest because the median height of her flowers is the least.

The plots show the heights for each friend’s flowers.

Which is the most likely plot for Anna’s flowers?

Answers

Step-by-step explanation:

es la numero     3

Answer:

Option 3 is the most common plot for Anna’s flowers

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