Answer:
- 494
Step-by-step explanation:
Breaking down the summation into it;s component parts
= 4k - 
k(k + 1) ← substitute k = 19
= (4 × 19 ) - 1.5 × (19 × 20)
= 76 - (1.5 × 380)
= 76 - 570
= 494
Answer:
where's the question???
Step-by-step explanation:
18??
two times as old.
36 divided but 2 is 18
Answer:
No, it is not in scientific notation. The first factor is not greater than or equal to 1.
Step-by-step explanation:
Scientific notation is a method of writing numbers as the product of two factors where the first factor is a number whose absolute value is greater than or equal to 1 but less than 10.
Answer:
96.52 centimeters
Step-by-step explanation:
1 inch is equal to 2.54 centimeters
38 inches = 38*2.54 cm
38 * 2.54 = 96.52
The answer is 96.52 centimeters
Hope this helps :)
Have a great day
