The number of runs scored by the home team at a base ball game is represented by (x + 7). The number of runs scored by the visiting team is represented by (3x - 7).

Given :

Runs scored by home team is (x + 7).

Runs scored by visiting team is (3x - 7).

To Find :

An expression to find how many more runs the home team scored than the visiting team. Then evaluate the expression if the value of x is 6.

Solution :

Let, number of more runs the home team scored than the visiting team is R.

R = (x + 7) - (3x - 7)

R = 14 - 2x

Now, putting value of x = 6 in above equation, we get :

R = 14 - 2( 6 )

R = 2

Hence, this is the required solution.

(-5,-28)

i graphed to on desmos.

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: