Ask question

Ask question

All categories

1 year ago

5

A researcher studied the relationship between the number of times a certain speciesof cricket will chirp in one minute and the t

emperature outside. Her data is expressedin the scatter plot and line of best fit below. What does the point (116, 57.1) represent?A.Actual temperature of 116°F when the cricket has chirped 57.1 timesB. An expected temperature of 57.1°F when the cricket has chirped 116 timesC. Actual temperature of 57.1°F when the cricket has chirped 116 timesD. An expected temperature of 116°F when the cricket has chirped 57.1 times

1 answer:

cricket20 [7]1 year ago

4 0

Answer:

C. Actual temperature of 57.1°F when the cricket has chirped 116 times

Explanation:

The x-axis represents the number of chirps per minute.

The values on the y-axis represent the temperature (in °F).

Given the point (116, 57.1)

• The number of chirps per minute = 116

,

• Temperature = 57.1°F

Thus, the point (116, 57.1) represent an actual temperature of 57.1°F when the cricket has chirped 116 times.

You might be interested in

What is the equation of a line, in point- slope form, that passes through (5, −3)(5, −3) and has a slope of 2323 ? y+5=23(x−3)y+

Marta_Voda [28]

Youyou havehave aa seriousserious doubledouble pastepaste problemproblem

the equation of the line that passes through the point (x1,y1) and has a slope of m is
y-y1=m(x-x1)
given

the point is (5,-3) and the slope is 23 (or it could be 2/3)
x1=5
y1=-3
y-(-3)=23(x-5)
y+3=23(x-5) is answer

7 0

3 years ago

Read 2 more answers

A motorboat travels 220 kilometers in 4 hours going upstream. It travels 260 kilometers going downstream in the same amount of t

aliya0001 [1]

Answer: The rate of boat is 60 kmh.

The rate of current is 5 kmh.

Step-by-step explanation:

Alright, lets get started.

Suppose the rate of boat in still water is : b kmh

Suppose the rate of current is : c kmh

When the boat is going upstream, the relative speed will be : $(b-c)$

When the boat is going downstream, the relative speed will be: $(b+c)$

Boat travels 220 kilometers in 4 hours going upstream.

$speed=\frac{distance}{time}$

$(b-c)=\frac{220}{4}$ .................. equation (1)

It travels 260 kilometers going downstream in the same amount of time.

$(b+c)=\frac{260}{4}$ ................... equation (2)

Adding equation 1 and 2

$b-c+b+c=\frac{220}{4}+\frac{260}{4}$

$2b=\frac{480}{4}$

$2b=120$

$b=60$

Plugging the value of b as 60 in equation 2

$60+c=\frac{260}{4}$

$60+c=65$

$c=5$

Hence the rate of boat is 60 kmh.

Hence the rate of current is 5 kmh.

Hope it will help :)

6 0

3 years ago

If a sprinkler waters 1 over 8 of a lawn in 1 over 4 hour, how much time will it take to water the entire lawn? (1 point)

gayaneshka [121]

It would take 2 hours. To complete the whole lawn you would need:
$\frac{8}{8}$
To make a whole, so to get that we multiply:
$8 \times \frac{1}{8} = \frac{8}{8}$
So we use the same number required for the whole lawn, and multiply it times the hours
$\frac{1}{4} \times 8 = 2$

7 0

4 years ago

Read 2 more answers

D=h+9 The variable H represents the number of hours worked, and the variable d represents the amount of dough prepared how many

Marta_Voda [28]

Answer:

12 hours

Step-by-step explanation:

If we assume that the units of D are kg, then we can put the given number into the equation and solve.

21 = h +9

12 = h . . . . . subtract 9

Eli worked 12 hours to prepare 21 kg of dough.

8 0

4 years ago

Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature is 80 degrees at midnig

Vladimir [108]

Answer:

The equation is given by:

$D(t) = 80 + 9\sin{0.2618t}$

Step-by-step explanation:

Sine function:

Has the following format:

$y = A\sin{bx}$

In which A is the amplitude and $\frac{2\pi}{b}$ is the period.

Suppose you know the temperature is 80 degrees at midnight and the high and low temperature during the day are 89 and 71 degrees

This means that the amplitude of the sinusoidal variation function is 89 - 80 = 80 - 71 = 9. This means that $A = 9$

During a 24-hour day, which means that the period is 24. So

$\frac{2\pi}{b} = 24$

$24b = 2\pi$

$b = \frac{2\pi}{24}$

$b = 0.2618$

So the variation is:

$V(t) = 9\sin{0.2618t}$

Assuming t is the number of hours since midnight, find an equation for the temperature, D, in terms of t.

Initial temperature of 80, so:

$D(t) = 80 + V(t) = 80 + 9\sin{0.2618t}$

8 0

3 years ago