Answer:
153.86 yd²
Step-by-step explanation:
Area of circle = 
Area = 3.14 × 7 ×7
Area = 153.86 yd²
Answer:
(x-10)²+(y+9)²= 324.
Step-by-step explanation:
For this question, you will need to substitute these values into the equation of a circle:
(x-h)²+(y-k)²= r²
'h and k' represent the center points, and 'r' represents the radius.
This will result in:
(x-10)²+(y+9)²=324.
Answer:
6x
Step-by-step explanation:
Product means to multiply
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
After 6,345 is multiplied by 1,000 it becomes 6,345,000. The digit 4 then has a value of 40,000.
