9. Scott is solving the equation x2 – 14x + 7 = 18 by completing the square. His friend Joey said that he made a mistake. Help Scott find the mistake and describe to him how
he could fix the mistake. Afterwards, fix the mistake. (4 points)
x² -
70
- 14x + 7 = 18
x² - 14 = 11
x² -
- 14x + 49 = 114
(x - 7² = 11 €
*-7 = +V11
* = 7 + V11

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.

b.-4 units

all you   do is count how many times you move

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: