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
Savatey [412]
3 years ago
11

A teacher is assessing the correlation between the number of hours spent studying and the average score on a science test. The t

able shows the data:
Number of hours spent studying
()
0
0.5 1 1.5 2 2.5 3 3.5 4
Seore on science test
V)
57 62 67 72 77 82 87 99 97
Part A: Is there any correlation between the number of hours students spent studying and the score on the science test? Justify your answer
Mathematics
1 answer:
Maru [420]3 years ago
7 0

yes there is a a correlation

f(x) = 4x + 60

slope = 4

y-intercept = 60

You might be interested in
A cylinder has a diameter of 40 feet and a height of 32 feet. What is the surface area of the cylinder? Express the answer in
mafiozo [28]

Answer:

6524.51 ft^2

Step-by-step explanation:

The surface area of a cylinder is given as;

SA = 2\pi rh + 2\pi r^2

where r = radius

h = height

The cylinder has a height of 32 feet and a diameter of 40 feet. This means that the radius is:

40 / 2 = 20 feet

The surface area is therefore:

SA = (2*\pi* 20 * 32) + (2*\pi *20^2)\\\\SA = 4021.24 + 2513.27\\\\SA = 6524.51 ft^2

The surface area of the cylinder is 6524.51 ft^2.

5 0
3 years ago
the price of an item originally priced at $24 was increased by 15%. what percentage decrease will restore it to its original pri
konstantin123 [22]

Answer:

$20.40

Step-by-step explanation:

First of all we find the value of 10%, so we do 24 ÷ 10 which equals to 2.4, then we find the halved value of 2.4, so we do 2.4 ÷ 2 which equals to 1.2. Then we add 2.4 and 1.2 together, which then gives us 3.6 as the number. We then subtract 3.6 from 24 which gives us 20.4, but we need in money terms so we change it to $20.40. Hope this helps.

7 0
2 years ago
I need you to help me solve this
Svet_ta [14]
For the expression to be factor-able the Discriminant  , has to be greater or equal to zero
ax^2 + cx + b = 0


c^2 - 4 ab >= 0 

(-3)^2 - 4 * 1 * b >= 0

9 - 4b >= 0

9 >= 4b

b <= 9/4  (2.25)

Pick any value in that range for ex:

0 , 2,  -3, -6

7 0
3 years ago
Sort the ratios listed at the right into bins so that equivalent ratios are grouped together:
sesenic [268]
What are the ratios and what are the different bins
5 0
3 years ago
Read 2 more answers
Why do graphs sometime not have a line through them?
kondaur [170]
If they do not have a line of best fit this may be because there is no correlation
4 0
3 years ago
Other questions:
  • Rewrite 140 1/8 in radical form
    7·2 answers
  • What the perimeter of this
    12·1 answer
  • Dvied 3/4 ( 2) 1/2<br> pls help
    11·1 answer
  • The time to complete the construction of a soapbox derby car is normally distributed with a mean of three hours and a standard d
    11·1 answer
  • Leroy found a job listed in the classified ads that pays a yearly salary of $42,000. What is his monthly salary?
    14·1 answer
  • Simplify.<br> <img src="https://tex.z-dn.net/?f=m%5Csqrt%7Bp%7D%20%2B%20n%5Csqrt%7Bp%7D%20-%20%5Csqrt%7Bp%7D" id="TexFormula1" t
    9·1 answer
  • Write down these numbers in expanded form . 3.425<br><br><br><br>​
    11·1 answer
  • Which expression is equivalent to the following expression? -4 (5x - 6)
    10·1 answer
  • I WILL MARK BRAINLEIST AND 20 EASY POINTS
    13·1 answer
  • 3 Find mLABC.<br> A<br> (50-x)<br> ✓<br> B<br> 80°<br> (2x + 40)°<br> D
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!