Answer:
A. 46.71
Step-by-step explanation:
I'm going to guess this is a "free-point" question, but here we go.
46.7 can be represented as 46.70, so, understandibly, adding 1 to the hundreths place gives you.
46.71
Hope this helps!
Assume the following:
Brad has been in the soccer team for b years.
Scot has been in the soccer team for s years.
"The number of years that brad has been on the soccer team is 2 less than 5 times the number of years that Scott has"
means: b=5s-2
"in total,the boys have been on the soccer team for 10 years."
means: b+s=10
so we have the equations:
i) b=5s-2
ii) b+s=10
substitute b in ii) with 5s-2, as they are equal, from i
(5s-2)+s=10
5s-2+s=10
6s=12
s=2,
then , from b+s=10, b=8
Answer: Brad has been in the team for 8 years.
Answer:
Step-by-step explanation:
Since the noise level of a lawn tractor is approximately
normally distributed, we would apply the formula for normal distribution which is expressed as
z = (x - u)/s
Where
x = the noise level
u = mean noise level
s = standard deviation
From the information given,
u = 100 decibels
s = 3 decibels.
We want to find the probability that a randomly selected lawn tractor will generate a noise level of
more than 105 decibels. It is expressed as
P(x > 105) = 1 - P(x ≤ 105)
For x = 105,
z = (105 - 100)/3 = 1.67
Looking at the normal distribution table, the probability corresponding to the z score is 0.9525
P(x > 105) = 1 - 0.9525 = 0.0475
Answer:
2 units
Step-by-step explanation:
Since EFG and XYZ are congruent, we can write it like this:
E = X
F = Y
G = Z
Due to E and F being two units apart on the coordinate plane, we can conclude X and Y are also at a measurement of 2 units! Hope this helps!
Answer:
C. 85°
Step-by-step explanation:
The angle is half the measure of the subtended arc. That arc (DF) is ...
360° -70° -120° = 170°
Half that measure is ...
∠FGD = 170°/2 = 85° . . . . . matches choice C
