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AURORKA [14]
3 years ago
10

What is the slope? The coordinate plane line has one point on (-4,4) and the other line on (0,-1)

Mathematics
1 answer:
Misha Larkins [42]3 years ago
8 0
The answer is M = -4/5
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Biologists have found that the number of chirps some crickets make per minute is related to temperature. the relationship is ver
aalyn [17]

Answer:

It is 74.24 degrees Fahrenheit when the crickets are chirping 150 times a minute.

Variables x = Chirps and  y = Degrees

y-intercept = 38.24

slope = 0.24

Step-by-step explanation:

As the chirps are 124 times per minute for 68 degrees Fahrenheit we will consider it in (x_1,y_1) = (124,68).

Now when the chirps are 172 times and temperature is 80 degrees we consider it (x_2,y_2) = (172,80).

To find the slope we can use point-slope formula.

Where m is the slope and m=\frac{y_2-y_1}{x_2-x_1} =\frac{80-68}{172-124}= 0.24

To find y-intercept we will plug out the value of slope in y=m(x)+b choosing point (x_1,y_1) = (124,68).

So b=y-m(x) =68-124(0.24) =68-29.76=38.24

And the equation is y=0.24(x)+b

To calculate temperature for 150 chirpings we have to plug x=150 and b=38.24 in our above equation which is in form of y=m(x)+b

y=0.24(x)+b

y=0.24(150)+38.24=74.24\approx 75 degrees Fahrenheit.

Finally we have :

Temperature 74.24 degrees Fahrenheit.

With variables x = Chirps and  y = Degrees

y-intercept = 38.24 and

slope = 0.24

6 0
3 years ago
2a + 9 = 4 then a = _______
Juliette [100K]

Answer:

a=\frac{-5}{2}

Step-by-step explanation:

2a+9=4

2a=4-9

2a=-5

a=\frac{-5}{2}

7 0
3 years ago
A public parking garage charges $5, plus an additional $2 per hour.
Ilya [14]

Answer:

y=2x+5

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is the solution to l + (-3) = 9?
Kazeer [188]

Answer:

well im sorry but i really couldn't understand ur question but...

1+(-3)=9 the sides are not equal so the sum is false (fake)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Please help me with this.............
Paha777 [63]

Answer:

36.5

Step-by-step explanation:

4x+3y-x-3y>=24-15

3x>=9

x>=3

4x+3y>=24

3x+x+3y>=24

x+y>=8-x/[email protected]

x+3y>=15

2x+6y>[email protected]

@[email protected]

3x+7y>=38-x/2=38-1.5=36.5

4 0
3 years ago
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