One winter’s day the temperatures were recorded in five different cities in New York State. The table below shows the results of this recording. City Temperature (
°
°F)
Rochester
−
11
°
−11°
Buffalo
−
18
°
−18°
Albany
12
°
12°
Syracuse
−
8
°
−8°
New York
21
°
21°
What is the mean or average temperature of the five cities?
A
−1.8°−1.8
°

B
−0.8°−0.8°
C
0.8°0.8
°

D
12°12
°

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

35-60 students are taking math.

what? that isnt a question

step-by-step explanation:

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is: