1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vladimir [108]
3 years ago
15

Please help me with this one I don’t understand. I need help with #20 thank you!

Mathematics
1 answer:
dimaraw [331]3 years ago
8 0

part A)

we know that for every 1000 ft the temperature drops by 1.3.

so after 1000ft up it went down by 1.3(1)

2000ft up it went down by 1.3(2) or 2.6

3000ft up it went down by 1.3(3) or 3.9

after 10000 up it went down by 1.3(10) or 13.

part B)

well, the current temperature on the ground where the plane is sitting is -2.8°F, after 10000ft it dropped by 13°, so the temperature will just be -2.8 - 13 = -15.8°F.

You might be interested in
Does anyone know how to solve this? Thanks!
belka [17]
Solve what? Answer that
6 0
3 years ago
PLEASE HELP MEEEEEEEEE
wariber [46]

Answer:

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
5. Rounded to three decimal places, what is the value of r for this data set?
IrinaVladis [17]

The value of correlation coefficient (r) for the dataset is 0.981

<h3>What is correlation coefficient (r)?</h3>

The correlation coefficient (r) is used to determine the closeness and association of a scatter plot points.

The dataset is given as:

  • x: 8  15  3  7  2  14
  • y: 15  21  6  12  3  20

Using a graphing calculator, we have the following parameters:

<h3>X Values </h3>
  • ∑x = 49
  • Mean = 8.167
  • ∑(X - Mx)2 = SSx = 146.833

<h3>Y Values </h3>
  • ∑y = 77
  • Mean = 12.833
  • ∑(Y - My)2 = SSy = 266.833

<h3>X and Y Combined </h3>
  • N = 6
  • ∑(X - Mx)(Y - My) = 194.167

The correlation coefficient (r) is then calculated as:

r = \frac{\sum{((x - My)(Y - Mx)) }}{ \sqrt{((SSx)(SSy))}}

This gives

r = \frac{194.167 }{ \sqrt{((146.833)(266.833))}}\\

r = 0.9809

Approximate

r = 0.981

Hence, the value of correlation coefficient (r) for the dataset is 0.981

Read more about correlation coefficient at:

brainly.com/question/4219149

3 0
2 years ago
What is the equation of this line in point-slope form AND slope intercept form <br><br> please help
Sphinxa [80]
Point slope form: y-3=-3/5(x+2)
Slope intercept form: y=-3/5x+9/5
6 0
2 years ago
This are 3 different questions please help me
Marysya12 [62]
1. diginity
2.require
3.tuition
5 0
2 years ago
Other questions:
  • How to use synthetic division to show how to methodically obtain the factors from the polynomial 2x^5+6x^4-42x^3-86x^2+192x+360
    13·1 answer
  • Alexa ordered a set of beads. She received 7,000 beads in all. 2,800 of the beads were orange. What percentage of the beads were
    12·1 answer
  • Deandra is doing her math homework. Out of 24 problems total, she completed the first 12 problems in 1 hour and the last 12 prob
    7·2 answers
  • Jamie jogged a total distance of 6 and 1 over 2 miles during the months of March and April. If Jamie only jogged 1 over 6 mile e
    10·2 answers
  • The producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste. A random sample of 60 pe
    5·1 answer
  • PLEASE HELP .!!! ILL GIVE BRAINLIEST.. *EXRTA POINTS* .. DONT SKIP :(( ! <br> ILL GIVE 40 POINTS .
    6·2 answers
  • Yesterday the temperature at noon was 12.2°F. By midnight, it had dropped by 20.9°F. What was the temperature at midnight?
    8·1 answer
  • Fide f (-7) evaluate the function
    8·1 answer
  • Which point represents the unit rate​
    7·2 answers
  • Select all pairs of complementary angles in the diagram.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!