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
svet-max [94.6K]
3 years ago
10

Please help......

Mathematics
1 answer:
rosijanka [135]3 years ago
5 0
1. using 2 dots that are on the blue line (0,72) and (6,69)
find the slope:

slope = change in Y over change in x = 69 - 72 / 6-0 = -3 / 6 = -1/2
 equation would be y = -1/2x + 72

2. y = -1/2x+72 = -1/2(30) +72 = -15 +72 = 57 beats per minute

3. replaced x in the equation with 30 to find the beats per minute for exercising 30 minutes

You might be interested in
Write the equation of a linear function f, such that f(1)=4 and f(4)=1 Then find f(-2)
trapecia [35]

If <em>f(x)</em> is a linear function, then

<em>f(x)</em> = <em>ax</em> + <em>b</em>

for some constants <em>a</em> and <em>b</em>.

Given that <em>f</em> (1) = 4 and <em>f</em> (4) = 1, these constants are such that

<em>f</em> (1) = <em>a</em> + <em>b</em> = 4

<em>f</em> (4) = 4<em>a</em> + <em>b</em> = 1

Solve for <em>a</em> and <em>b</em> : eliminate <em>b</em> by subtracting the two equations,

(<em>a</em> + <em>b</em>) - (4<em>a</em> + <em>b</em>) = 4 - 1

-3<em>a</em> = 3

<em>a</em> = -1

Then

-1 + <em>b</em> = 4

<em>b</em> = 5

So we have

<em>f(x)</em> = -<em>x</em> + 5

7 0
3 years ago
HELP! I WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!
Viefleur [7K]

Answer:

Step-by-step explanation:

The answer is A

6 0
3 years ago
What is the area of a triangle measuring 2.2 width and 9.9 length
Feliz [49]
I will assume that by 'width' you mean the base of the triangle. Then, the area would be 10.89cm^2
4 0
3 years ago
I did my work I just didn’t show it. But is the answer 2 5/6? This is not improper fraction it is subtracting Fractions (with re
Advocard [28]

yes you are correct

8 0
3 years ago
Which line is parallel to the line 8x + 2y = 127​
fomenos
Solve for y, add 8x to the other side then when y is isolated divide both sides of the question by two and that should give you your final equation and you should have the slope and yint
5 0
3 years ago
Read 2 more answers
Other questions:
  • Gcf help help plz i need help
    11·2 answers
  • Find the square root of 248 by long division method
    11·1 answer
  • On a distant planet, a ball is thrown upwards from ground level , reaching a maximum height of 12m and hitting the ground again
    5·1 answer
  • Write the ratio of the area of the circle to the area of the square in simplest form? ​
    15·1 answer
  • Elena and Jada are 12 miles apart on a path when they start moving towards each other Elena runs at a constant speed of 5 miles
    12·2 answers
  • Keith bought a video game for $660. Amy only spent 1/3 of the cost on hers. How much did Amy spend on her video game system?
    15·1 answer
  • A rectangle has a length of (x+10) centimeters and a width of x centimeters. If the perimeter is 32 centimeters, what is the len
    15·1 answer
  • Smartphones have chips in them that can contain 3.3 billion transistors. If each transistor weighs 5.1 × 10−23 grams, find the t
    11·1 answer
  • Which equation represents a line which is perpendicular to the line x-5y=-40
    15·1 answer
  • Please explain step by step! urgent!!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!