Answer:
0.04
Step-by-step explanation:
becausse thats the tenth power
The slope is 2
and the intercept is -7/2
12miles
Step-by-step explanation:
this is because 28 divide by 7 is 4 so 4 a day is 12 for 3 days
Answer:
2.4
Step-by-step explanation:
We would first calculate the mean, because we would need it to calculate our varance.
Mean= sum of the number of given data set/ total number
Mean = (9 +8 +9 +5 +9 )/5
= 40/5= 8
variance (σ2):= [(9-8)^2 + (8-8)^2 + (9-8)^2 +(5-8)^2 +(9-8)^2]/5
=( 1+ 0 + 1 +9 +1)/5
= 12/5
variance (σ2)= 12/5
=2.4
Step-by-step explanation:
what is to be done ? just that addition ?
first, let's all bring to pure fractions.
7 2/3 = (7×3 + 2)/3 = 23/3
2 1/5 = (2×5 + 1)/5 = 11/5
then let's bring all to a common denominator (bottom part of the fraction).
for this, we need to find the first (or any) common multiple of the 2 denominators (here 3 and 5).
if you have no other idea, just multiply them with each other (in our case here this is also the smallest common multiple) : 3×5 = 15.
so, we bring both fractions into the form of .../15. then it is easy to add them.
23/3 = x/15
x = 23/3 × 15 = 23×15/3 = 23×5 = 115
=>
23/3 = 115/15
11/5 = x/15
x = 11/5 × 15 = 11×15/5 = 11×3 = 33
=>
11/5 = 33/15
now the addition :
115/15 + 33/15 = 148/15 or 9 13/15
this is the result, as it cannot be further simplified.
