75 - 12x^2 = 3(25 - 4x^2)
1. -x-1
2. -10x+9
3. -3x+1
4. -4.8x-0.8
5. -1.25x-0.7
6. -6x-20
7. 10x+10
8. -x+16
You’re welcome
Answer:
7 is the card that must be removed.
Step-by-step explanation:
2 + 5 + 8 + 9 = 24 and dividing it by four (which is something you have to do when finding the average or mean) will get you 6 as an answer. So by getting rid of 7 you have a final mean as 6.
What is that $13,455.78? Something? I did this and got $13,122.76. Here's how I did it:
Use this formula

where A is the ending amount, P is the starting amount, n is the number of times it compounds a year, and t is the number of years. We have all we need to set it up:

First divide and add inside the parenthesis:

then multiply the exponents:

raise the value inside the parenthesis to the power of 260:

and finally multiply to get A = $13,122.76
Answer:
A
D is 13 km
Step-by-step explanation:
30min:60h=0.5h *14km/h=7km
7-4=3km(AB)
4km(BC)
2*3=6km(CD)
3+4+6=13km