For kaley to be accepted into her favorite college, she will have to earn an entrance exam score at least 2 standard deviations above the mean. assume entrance exam scores are normally distributed, with a mean of 750 and a standard deviation of 40. what exam score does kaley need to be accepted at her favorite college?

Step-by-step explanation:

I believe the answer is going to be 830 or higher. Kaleys score needs to be 2 standard deviations above the mean and one standard deviation is 40 so 40*2=80. The mean is 750 + 80 = 830 is what she would need to get in.

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40

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: