The flower beds occupy:
100% - 20% = 80%
We then have the following rule of three:
25 feet ^ 2 ------> 100%
x -----------------> 80%
We clear the value of x:
x = (80/100) * (25)
x = 20 feet ^ 2
Answer:
the flower beds occupy 25 square feet
The scientific notation of 832,000 is <span>8.32 × (10)to the fifth power.
Have a great day!
</span>
Answer: this is wrong. The final answer should be x - 4y = 8
Step-by-step explanation:
y = 1/4x + 2
We'll first isolate the constant
-1/4x + y = 2
We remove the fraction by multiply through both sides of the equation
-4
x - 4y = 8
The confidence interval formula is computed by:
Xbar ± Z s/ sqrt (n)
Where:
Xbar is the mean
Z is the z value
S is the standard deviation
N is the number of samples
So our given are:
90% confidence interval with a z value of 1.645
Sample size 40, 45
Mean 180, 179
Standard deviation 2, 4
So plugging that information in the data will give us a
confidence interval:
For 1:
Xbar ± Z s/ sqrt (n)
= 180 ± 1.645 (2 / sqrt (40))
= 180 ± 1.645 (0.316227766)
= 180 ± 0.520194675
= 179.48, 180.52
For 2:
Xbar ± Z s/ sqrt (n)
= 179 ± 1.645 (4 / sqrt (45))
<span>= 179 ± 1.645 (0.596284794)</span>
therefore, the answer is letter b
