Need ASAP 11. The amount of money that Sara earns in a week is a random variable with a mean of $920 and a standard deviation of $25. The amount of money that Natalie earns in a week is a random variable with a mean of $8-
with a standard deviation of $10. If the difference between Sarah's weekly income and Natalie's weekly income
can be described as a Normal model, what is the probability that Sarah's weekly income is at least $160.39
more than Natalie's weekly income? (In other words, what is the probability that the difference S-N is at least
$160.392) Assume that Sarah's earning are independent of Natalie's earnings. SHOW ALL WORK!

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.