Answer:273.90
Step-by-step explanation:
1. Add up 347.90 and 129.00 to get 476.90
2. Subtracted 75 from the total which was 825.80 so that it would equal 750.80
3. Subtracted 750.80 and 476.90 to get our answer of 273.90
Answer:
0.448 seconds
Step-by-step explanation:
d = -16t² -4t + 412
find t when d = 407
substituting d = 407 into the equation:
407 = -16t² -4t + 412 (subtract 407 from both sides)
-16t² -4t + 412 - 407 = 0
-16t² -4t + 5 = 0 (multiply both sides by -1)
16t² + 4t - 5 = 0
solving using your method of choice (i.e completing the square or using the quadratic equation), you will end up with
t = (-1/8) (1 + √21)= -0.70 seconds (not possible because time cannot be negative)
or
t = (-1/8) (1 -√21) = 0.448 seconds (answer)
The age for when babies learn to crawl is different for Januar,May, and September.. so I guess yes?
5.
the diagonal squared = base squared + altitude squared.
