Using the empirical rule, the probability that a randomly selected student's math score is between 300 and 700 (both 2 standard deviations below the mean) is 95%. Or in decimal form, .95.
Answer:
Answer: 37/100 (B)
Step-by-step explanation:
3/10 + 7/100 = 30/100 + 7/100 = 37/100
First convert 3/10 to 30/100 (Multiply both numerator and denominator by 10). Then add.
Answer: 37/100 (B)
Answer: none of the above
Explanation:
There is no angle corresponding to angle A
Answer: C is the correct answer.
Step-by-step explanation: First of all, you have to eliminate the answer choice in which the angles are different for the cosine term and for the sine term. Therefore, you can eliminate choice D.
The way that complex numbers are written are the following:
z=a+bi
r (which is considered the magnitude/number outside the parentheses)=sqrt (a^2+b^2)
tan(angle)=b/a.
Now using the information given here,
a=-6, b=6.
r=sqrt ((-6)^2+6^2)=sqrt(72)=6sqrt2
tan(angle)=6/-6=>-1
angle is equal to arctan(-1)=3pi/4.
Therefore the correct answer is C. Hope that helped!
Answer:
Maria can drive 400 miles.
Step-by-step explanation:
30 + 0.15x = 90
0.15x = 60
x = 60/0.15
x = 400
