Answer:
<h2>
a₁₈ = - 31</h2>
Step-by-step explanation:
Answer:
2x + 3y - 7
Step-by-step explanation:
3x − 2y − 7 + 5y − x =
2x - 2y - 7 + 5y =
2x + 3y - 7
Answer:
-3.786 × 10^7
Step-by-step explanation:
Put an decimal behind a number 1-10
but keep the negative sign
so you should get
-3.7860000
Then you count how many numbers are to the right of the decimal which is 7.
That number will become the exponent and then you take away the zeros
You should then have
-3.786 × 10^7 as your answer.
Answer:
No
Mean diameter = 44, which is in the 40 - 44 cm group
Step-by-step explanation:
Given the data:
Diameter (cm) - mid point(X) - frequency(F) - - FX
35-39 - - - - 37 - - - - 8 - - 296
40-44 - - - 42 - - - 10 - - - 420
45-49 - - - 47 - - - 13 - - - 611
50-54 - - - 52 - - - 3 - - - 156
55-59 - - - 57 - - - 1 - - - 57
Mean of grouped data:
Sum of (F × X) / sum of F
1540 / 35 = 44
Answer: 52,416,000 km
Step-by-step explanation:
If a comet travels 273,000 km/hr
1) Multiply 273,000 km by 24 hours to find how far the comet travels in one day
2) multiply the answer from 1 by 8 to determine how far it travels in 8 days
1) 
*
= 
(hours cancel out)
2)*8 day= 52,416,000 km in 8 days
The comet approximately travelled 52,416,000km from when it began to travel to when it reached Earth. Hope this helped :)
