Mathematics High School

use the scatter plot and the trend line to show answer a-c. Write an equation for the trend line. predict the value of y when x =21 Predict the value of x when y = 150

Answers

Answer 1

Answer:

See Explanation

Step-by-step explanation:

This question is incomplete, as the required scatter plot is not included in the question. I will answer your question with the attached plot.

Solving (a): The equation

Pick any [tex]two[/tex]  [tex]points[/tex]on the [tex]trend[/tex] line

[tex](x_1,y_1) = (30,40)[/tex]

[tex](x_2,y_2) = (80,70)[/tex]

[tex]y = 0.6x + 22[/tex]

Calculate the slope (m)

[tex]m = \frac{y_2 - y_1}{x_2 -x_1}[/tex]

[tex]m = \frac{70 - 40}{80-30}[/tex]

[tex]m = \frac{30}{50}[/tex]

[tex]m = 0.6[/tex]

The equation is then calculated as:

[tex]y = m(x - x_1) + y_1[/tex]

This gives:

[tex]y = 0.6(x - 30) + 40[/tex]

[tex]y = 0.6x - 18 + 40[/tex]

[tex]y = 0.6x + 22[/tex]

Solving (b): y, when [tex]x = 21[/tex]

[tex]y = 0.6x + 22[/tex]

Substitute [tex]x = 21[/tex]

[tex]y = 0.6 * 21 + 22[/tex]

[tex]y = 12.6 + 22[/tex]

[tex]y = 34.6[/tex]

Solving (c): x when [tex]y=150[/tex]

[tex]y = 0.6x + 22[/tex]

Substitute [tex]y=150[/tex]

[tex]150 = 0.6x + 22[/tex]

Collect like terms

[tex]0.6x = 150 -22[/tex]

[tex]0.6x = 128[/tex]

Solve for x

[tex]x = \frac{128}{0.6}[/tex]

[tex]x = 213.3[/tex]

Use The Scatter Plot And The Trend Line To Show Answer A-c. Write An Equation For The Trend Line. Predict

Related Questions

Use the properties of logarithms to expand log (3^2xy) as much as possible.

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Answer:

I have no idea

Step-by-step explanation:

The diameter of a circle is 16 in. Find its circumference in terms of \piπ.

Answers

Answer:

50.24

Step-by-step explanation:

The formula for solving circumference is 2 x pi x r

first the radius is 8 (divide 16 by 2 and get radius)

( pi can be 22/7 or 3.14. but I’m taking 3.14 )

second, we have all values, now we just have to substitute them!

Pi = 3.14

R = 8

so when we do 2x 3.14 x 8 = 50.24

I hope this helped!

Answer: The area of the circle is 64π cm

Step-by-step explanation:

d=16→r=8

A= π⋅8 ^2

A= π⋅64

A=64π

work out the areas of these compound shapes ? Pls step by step

Answers

The area of the compound shape is 55

Answer:

55cm^2

Step-by-step explanation:

Split into 2 parts, the rectangle on the left, and triangle on the right.

Rectangle:

8 cm x 5 cm = 40 cm^2

Triangle

14 cm - 8 cm = 6cm (Height)

(5cm(base) x 6cm)/2 = 15cm ^2

15cm^2 + 40cm^2 = 55cm^2

During a sale, a store offered a 50% discount on a Playstation that was originally priced at $600. After the sale, the discounted price of the Playstation was increased by 35%. What was the price of the Playstation after this increase? *

Answers

Answer 85%




Because it was 50% at first and they increasing it by 35% more, which is add so it became 85% HOPE THIS HELP

Simplify. Consider all the cases. |7-(12-x)|

Answers

Answer: |x-5|

Step-by-step explanation:

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Is 4/10 less than 4/6?

Answers

Answer:

No. 4/10 >4/6

Step-by-step explanation:

I hope this helps you :)

Well I know 4/6 is not less then 4/10 so I’d say the answer is yes hope this helped

guys please help i’m blanking!!!
Select all the functions whose graphs include the point (16,4)

Answers

D and E —> substitute the x or y of the point given into the functions to test if it is correct

Order of operation help help help I have 10 min on the timer left!!! NO LINKS!!!!!!

Answers

Answer:

-11

Step-by-step explanation:

Answer:

I believe it's 39.

(9 - 2)^2 - |3 - 17| + 4

(7)^2 - |-14| + 4

49 - 14 + 4

35 + 4

39

Will give brainliest if right

O D. The points seem to be clustered around a line.

Answers

Answer:

D. The points seem to be clustered around a line.

Step-by-step explanation:

The scatterplot points are spread out and forming a line, not around a point.

There are two outliers.

please help you don't have to show work

Answers

Answer:

1. a

2. 422

3. 156.06

Step-by-step explanation:

A rope that is 6 meters long will be cut into 24 pieces that are all of the same
length. What will be the length of each piece, in centimeters?

Answers

Answer: I would say 4 centimeters

Step-by-step explanation: Well if 24 divided by 6 equals 4 then I would say 4

Based on the length of the rope and the number of pieces it is to be cut into, the length of each piece will be 25 cm long.

First covert the length of the rope to centimeters:

= 6 x 100

= 600 cm

The length of each piece will be:

= Length of rope / Number of pieces

= 600 / 24

= 25 cm

In conclusion, each piece will be 25 cm long.

Find out more at https://brainly.com/question/17563021.

Question 13
Find the area of the (gray) shaded region. (2 tangent circles inscribed in a rectangle):
20

Answers

Answer:

42.92 square

Step-by-step explanation:

The radius of the circles is 5m

So, area of 1 circle is π(5×5)=78.54 square

Two areas will  (78.54+78.54)=157.08 square

Rectangles height is ( 5+5)=10m

Rectangles area is (10×20)=200 square

Shaded region=(200-157.08) square =42.92 square

Using the Pythagorean Theorem PLEEEEEEEEEEEEEAAAAAASE!



A car traveled 48 miles west and then 14 miles south. How far is the
car from its starting point?

Answers

Answer:

50 miles.

Step-by-step explanation:

You can visualize this as a triangle. the west route is one leg and the south route is the other. The distance from the starting point is the hypotenuse. 48^2+14^2=c^2, c=50.

Answer:

50

Step-by-step explanation:

[tex]48^{2} + 12^{2} = x^{2} \\X= 50[/tex]

Please help! Due today! :(

Answers

The answer is 1.57! I hope this helps you!

I don’t understand the entire question ?

Vitamin C comes in pills with a strength of 500 mg. How many pills would you need to take if you want a dosage of two grams?

Answers

Answer:

4 pills

1

Step-by-step explanation:

Find the area of this parallelogram. Be sure to include the correct unit in your answer.

Answers

Answer:

The area of this parallelogram is 140 square feet.

Step-by-step explanation:

A = bh

A = 14 * 10

A = 140

Hope this helps; have a wonderful day!

Please Answer.\
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Answers

Answer:

1:B

2:B

3:C

Step-by-step explanation:

HOPE IT'LL HELP :)

what is the area for #2 and #4
evidence is would be greatly appreciated!

Answers

Answer:

2.)70

4.)451,17

Step-by-step explanation:

2.)

a1 = 8*5 = 40

a2 = ((20-8)*5)/2 = 30

aTotal = 40+30 = 70

4.)

a1 = 18*18 = 324

a2 = (πr²)/2 = 127,17

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what 9/2-11/4 plz help i only have 10 mins till due

Answers

Answer:

7/4

Step-by-step explanation:

9/2 - 11/4

Get a common denominator of 4

9/2 *2/2  - 11/4

18/4 - 11/4

7/4

Answer:

The answer is 7/4

Step-by-step explanation:

9/2 - 11/4

Here, we will Cross Multiply

9/2 - 11/4

9 × 4 - 11 × 2 ÷ 4 × 2

36 - 22 ÷ 8

14 ÷ 8 = 7/4

Thus, The answer is 7/4

-TheUnknownScientist

$115. Today, the price rose to $161. Find the percentage increase.
$
?

Answers

Answer:

40%

Step-by-step explanation:

what can 16 and 4 both be divided by​

Answers

Answer: They can both be divided by 4, 2, and 1

Answer:

1, 2 and 4

explanation:

16/1, 16/2, 16/4

4/1, 4/2, 4/4

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Answers

Answer:

has a maximum value

Step-by-step explanation:

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

Answer:

maximum value

Step-by-step explanation:

simplify 3a - 2(8 +4a)

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Answer:

-5a - 16

Step-by-step explanation:

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Answer:

D

Step-by-step explanation:

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Answer:

c

Step-by-step explanation:

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Answers

un millon cincuenta y tres mil quinientos siete

one million, fifty three thousand and five hundred and seven

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Answers

Answer:

[tex]\pi \times r = 3.14 \times 5 = 15.7[/tex]

A ladder that is 14 feet long is placed against a building. The bottom of the ladder is 6 feet from the base of the building.

A right triangle with side length 6 feet, hypotenuse 14 feet, and side h.

In feet, how high up the side of the building is the top of the ladder? Round to the nearest tenth of a foot.


12.65

Answers

Answer:

12.6 ft

Step-by-step explanation:

Using Pythagoras' identity in the right triangle

let h be height up the side of the building , then

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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y₁ (tilda sign) = mx₁ + b

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