Answer: d. 4, 4.53%
Step-by-step explanation:
Given table :
Number of Children Frequency
0 325
1 212
2 660
3 151
4 68 ← Least frequency
5 or more 84
Total = 1500
or Sample size of couples = 1500
The number of children occurred the least frequently = 4 [Minimum frequency is 68 at number of children=4]
Percentage =
Hence, the correct answer is d. 4, 4.53%
The number of liver cells it would take to form an end to end chain 10 in long is 12,700 liver cells
<h3>Calculating quantity</h3>
From the question, we are to determine how many liver cells it would take to form an end to end chain 10 in long
First, we will convert 10 in to meters
1 inch = 0.0254
∴ 10 inches = 0.254 m
From the giving information,
A liver cell is about 20 μm in diameter
∴ The number of liver cells it would take to form an end to end chain 10 in long = 0.254 m / 20 μm
= 0.254 m / (20 ×10⁻⁶) m (NOTE: 1μm = 10⁻⁶m)
= 12700
Hence, the number of liver cells it would take to form an end to end chain 10 in long is 12,700 liver cells
Learn more on Calculating quantity here: brainly.com/question/2021001
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Answer:
14.86%
Step-by-step explanation:
The principal = $5800
Time = 5 years
Amount = $ 11600
From;
A= P(1 + r)^n
Substituting values;
11600=5800(1 + r)^5
Rate= (11600/5800)^1/5 - 1
Rate= 0.1486
Therefore
Rate= 14.86%
Subtitution is the simplest method to find the solution
First, change x to the value of y from the second equation
x - y = 6
x = y + 6
Second, subtitute x with the value of y in the first equation, to find the exact value of y.
x² + y² = 26
(y + 6)² + y² = 26
y² + 12y + 36 + y² = 26
2y² + 12y + 36 - 26 = 0
2y² + 12y + 10 = 0
y² + 6y + 5 = 0
(y + 5)(y + 1) = 0
y = -5 or y = -1
Third, we have 2 values for y. We should find the value of x for each y-value
For y = -5
x = y + 6
x = -5 + 6
x =1
For y = -1
x = y + 6
x = -1 + 6
x = 5
The solution are (1,-5) and (5,-1). The answer is option d