The length of each interval would be 3.75 rounding to whole number is 4.
Step-by-step explanation:
- Stack in excel from lowest to highest points.
- Total number of data points are 14.
- Frequency distribution to be created.
- You can use countif function for frequency distribution.
- Since we have already got the number of intervals.
- It will be easier to calculate the number if intervals.
- normally there should be 5-15 intervals to get a better histogram.
- Basic formula is Highest data point - Lowest data point/ classes/intervals.
- So (29-14)/4 = 3.75 rounding to 4.
Answer: -2, 0, 4
Set the equation equal to zero.
x³ - 2x² - 8x = 0
Factor out x in the equation, since all the terms (x³, -2x², and -8x) are divisible by x. You can check your accuracy using the Distributive Property.
x(x² - 2x - 8) = 0
Factor out the polynomial. To do this, find two numbers that multiply to get the last term, -8, and add together to get the middle term, -2. In this case, those two numbers are -4 and 2 (-4 × 2 = -8 and -4 + 2 = -2). Don't forget about the x that was factored out before!
x(x - 4)(x + 2) = 0
Set each factor equal to zero and solve for x. The factors in the equation are x, (x - 4), and (x + 2).
x = 4
x = -2
The zeros of the polynomial function are -2, 0, and 4.
Answer:
a) 90 cubic foot
b) 90 cubic foot = 667.62 gallons
c) $3.3381
Step-by-step explanation:
a)
volume of rectangular hot tub
= 6*5*3
= 90 cubic foot
b)
1 cubic foot = 7.418 gallons
90 * 1 cubic foot = 90 * 7.418 gallons
90 cubic foot = 667.62 gallons
c)
$5 = 1000 gallons
($5 / 1000) = (1000 / 1000) gallons
.005 * 667.62 = 1 * 667.62 gallons
$3.3381 = 667.62 gallons
Answer:
V=a3=33=27
Step-by-step explanation:
sorry if its wrong
Solve using quadratic formula!
Answers:
5 + √39
5 - √39
