Answer:
jonathan
Step-by-step explanation:
if for example jonathan spends 5 hours of homework or reading he'll get 3 hours of gaming. if lucas spends the same amount of time on homework or reading he'll only get 2 and a half hours playing.
Answer:
75
Step-by-step explanation:
first, there are three 5's on the spinner, with a total of 12 sections. 3/12 = 0.25, so you multiply 0.25 times 300 (the total spins) and get 75
Answer:
330cm³
Step-by-step explanation:
calculate the from surfacr and then multiple it with 6cm
the rectangle in the from is 3cm*10cm= 30cm²
the triangle got a base of 10cm and a height of 5cm. we can know that because of the 45° angle. imagine two smaller triangles here (see my wacky drawing attempt)
anyways, that gives us 25cm² for the big triangle.
making the front 55cm² in total
multiplied with 6cm it's 330cm³
Answer:
A. 5
Step-by-step explanation:
It says that the sample is normally distributed, which means it follows the bell curve in terms of spreading. That means that 68% of the numbers are within two standard deviations, centered on the mean, one standard deviation below, one up.
That's confirmed by the fact that 1,360 numbers (exactly 68% of 2,000) are between 40 and 50. Since the mean is 45, that gives a spread of ± 1 standard deviation for 68% of the numbers.
One standard deviation goes from 40 to 45, another from 45 to 50.
So, the standard deviation of this sample is 5.
The answer is 1/2 because it is really just the constant movement of x over y
