<h2>
Answer:</h2>
The the number of students who sign up for all three clubs = 6
<h2>
Step-by-step explanation:</h2>
The total number of students in the class is given by:
Total number of students= Number of students in poetry club+Number of students in history club+Number of students in writing club-Number of students in exactly 2 clubs-2×Number of students in all the three clubs.
Based on the information we have:
Total number of students= 59
Number of students in poetry club= 22
Number of students in history club= 27
Number of students in writing club= 28
and number of students in exactly two clubs=6
Let the number of students in the three club= x
Hence, we have:
59=22+27+28-6-2x
i.e.
59=71-2x
i.e.
2x=71-59
i.e.
2x=12
i.e.
x=6
Hence, the answer is: 6
Answer: 
Step-by-step explanation:
Since the general quadratic equation is,
Here the given table is,
x 1 2 3 4 5 6 7
y 5.9 8.9 13.4 20.1 30.1 45.1 67.7
By the graphing calculator,
a = 1.87024 ≈ 1.87
b= -5.15833 ≈ -5.15
c = 10.5429 ≈ 10.54
By putting the values of a, b and c,
The required quadratic equation is,
⇒ First Option is correct.
Expression: 37 + x
explanation:
~ 3x2 + 4x + 5
~ So, x + 37 km
The equation would be T=20+15m, although it doesn’t matter which variables you use. The T stands for the total amount of money and the m stands for how many minutes there are.
Answer: where is the question
Step-by-step explanation:
