According to the records of an electric company serving the Boston area, the mean electricityconsumption during winter for all households is 1650 kilowatt-hours per month. Assume that the monthlyelectric consumptions during winter by all households in this area have a normal distribution with a meanof 1650 kilowatt-hours and a standard deviation of 320 kilowatt-hours. The company sent a notice toBill Johnson informing him that about 90 % of the households use less electricity per month than hedoes. What is Bill Johnson’s monthly electricity consumption?

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

his first public project he is asked to create a small scale drawing. the garden is a right triangle with base 25m and height 30m. are you trying to solve for the last side/hypotenuse? the irrational form of the answer would be 5\sqrt{61}

d.) 48 units

step-by-step explanation: