Answer:
the answer is D ) 2,-3
Step-by-step explanation:
you just move it left 4 times and 2 up and R will land on 2,-3
15 / 21 = 75 / x.....15 shots to 21 grams = 75 shots to x grams
cross multiply
(15)(x) = (75)(21)
15x = 1575
x = 1575 / 15
x = 105 grams <===
X = 3/2 or 1 1/2
Both of the equations equal -10, therefor the equations are equal.
D. both climbers rested on the wall for 2 minutes
Answer:
Step-by-step explanation:
Given that the time to complete a standardized exam is approximately normal with a mean of 70 minutes and a standard deviation of 10 minutes.
P(completing exam before 1 hour)
= P(less than an hour) = P(X<60)
=P(Z<
)
=0.5-0.34=0.16
i.e. 16% of students completed the standardized exam.