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
Keith_Richards [23]
3 years ago
7

For a random sample of 20 professional athletes, there is a strong, linear relationship between the number of hours they exercis

e per week and their resting heart rate. For the athletes in the sample, those who exercise more hours per week tend to have lower resting heart rates than those who exercise less. Which of the following is a reasonable value for the correlation between the number of hours athletes exercise per week and their resting heart rate?
Mathematics
1 answer:
QveST [7]3 years ago
6 0

Answer:

D) -0.87

Step-by-step explanation:

I took this test don't quote me on the answer but this is what my peers put.

You might be interested in
What is 9/8 in simplest from
Alchen [17]
9/8 is in the simplest form
3 0
4 years ago
Which statement best describes the graph of this polynomial function f(x)=x^4+x^3-2x^2
jenyasd209 [6]

Answer:

See below description.

Step-by-step explanation:

The function f(x) = x^4+x^3-2x^2 has the following characteristics:

  • Factors: x^2(x+2)(x-1)
  • Zeros/roots: x=0, x=-2, amd x=1
  • Positive leading coefficient
  • Graph starts up, curves down through -2 on the x-axis and back up to 0 where it touches and curves down and back up again again. It comes down back through 1 and crosses.
  • Its graph s the shape of a W.
  • It has minimum values at -2.83 and -0.397
3 0
3 years ago
Diego has two jobs. He works 3 hours at the library each day, making $8 per hour. In addition, he works at a coffee shop, making
Zepler [3.9K]

Answer:

  • D.  l = 3  ||  4 < c < y   ||  8l + 7.5c ≥ 70

Step-by-step explanation:

<h3>Work at library</h3>
  • Time  = 3 hours ⇒ l = 3
  • Payment = $8 per hour
  • Total payment = 8l
<h3>Work at coffee shop</h3>
  • Time = between 4 and 7 hours ⇒ 4 < c < 7
  • Payment = $7.5 per hour
  • Total payment = 7.5c

Target income = at least $70 daily  

<u>So the system as per above parameters:</u>

  • l = 3
  • 4 < c < y
  • 8l + 7.5c ≥ 70

Correct option is D

3 0
3 years ago
A four-sided polygon has sides that measure 1 cm, 5cm, and 7 cm. (Forth side not given). What is the perimeter?
yaroslaw [1]

Answer:

(13+x)cm

Step-by-step explanation:

Given data

Length of sides

1cm, 5cm, 7cm

Since the shape is four-sided and the fourth side is not given, let the fourth side be x

so

The perimeter of the polygon is

P= 1+5+7+x

P= 13+x

Hence the perimeter of the polygon is

P= (13+x)cm

3 0
3 years ago
Any help will be really appreciated
RSB [31]

Answer: B

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • 3.2 is what percent of 159.2
    5·1 answer
  • A hotel chain charges $75 each night for the first two nights and $50 for each additional night’s stay. the total cost t is a fu
    14·2 answers
  • Checking Your Understanding
    6·1 answer
  • Can someone give me the answer for this one
    14·1 answer
  • Identify the constant term in the function. y=-x^2+3x-4
    10·1 answer
  • Plz help me with these plz if u could
    14·2 answers
  • Solve for the value of x and y
    7·1 answer
  • 3)
    14·2 answers
  • A regular hexagon is inscribed in a circle with a diameter of 8 inches.
    13·1 answer
  • 90+(x+5)+(2x-2)=180<br> Will you please help me solve this
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!