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A science teacher gave her class two tests. 25% of the class passed both tests and 42%
of the class passed the first test. What percent of those who passed the first test also
passed the second?
59.5%
10.5%
Not enough
information
ME
*
RPM
s/2010

answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.

the diameter is 16 cm. are you a teacher?

step-by-step explanation:

7.9m and 4.3°

step-by-step explanation:

let east be +x and north be +y, x = distance * cos θ, y = distance * sin θ  

for 3.5 south, y = -3.5  

for 8.2, x = 8.2 * cos 30 and y = 8.2 * sin 30  

for 15 west, x = -15  

total x = 8.2 * cos 30 – 15 ≈ -7.9  

total y = -3.5 + 8.2 * sin 30 = 0.6  

magnitude = [(8.2 * cos 30 – 15)^2 + 0.6^2)]^0.5  

the magnitude is approximately 7.9 m  

tan θ = y/x = 0.6/-7.9  

the angle is approximately 4.3˚ north of west