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Anastasy [175]
3 years ago
6

678,985,488 in expanded notation

Mathematics
1 answer:
____ [38]3 years ago
3 0
Six hundred seventy-eight million nine hundred eighty-five thousand four hundred eighty-eight. (I think)
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Which combination of interest rates and fees are the better deal assuming you have an account with an average balance of $500? (
horrorfan [7]

9514 1404 393

Answer:

  An account with 2% annual interest rate and no fees

Step-by-step explanation:

The lowest fee is also associated with the lowest interest rate, so that is the account that is the best deal:

  An account with 2% annual interest rate and no fees   (2nd choice)

3 0
4 years ago
Find the lateral area of a right circular cone whose radius is 6 feet and height is 8 feet.
Dmitry_Shevchenko [17]

Answer:

we know that

[the lateral area of a right circular cone]=pi*r*l

where

r--------------> the radius of the circle part of the cone

l--------------> the side (slant height) of the cone

r=6 ft

h=8 ft

Step 1

find the slant height of the cone

which is determined by using Pythagoras, since the cross section is a right triangle.

l² = h²+ r²------------> l²=8²+6²-------> l²=64+36---------> l=10 ft

Step 2

find the lateral area

[the lateral area of a right circular cone]=pi*r*l--------> pi*6*10----> 188.4 ft²

the answer is 188.4 ft²

7 0
3 years ago
Mischa and Ben's combined SAT score was 2290. Ben and Ashley's
alexdok [17]

Answer:

Ashley=1450

Ben= 1080

Mischa= 1210

Step-by-step explanation:

M= Mischa

B= Ben

A= Ashley

M+B=2290

A+B=2530

M+A=2660

M-A= -240

so 2M = 2420, and M= 1210

Then

1210 + B = 2290

B= 1080

Then

1210 + A= 2660

A= 1450

5 0
3 years ago
How much is 3/5 of 31/8 ?
Otrada [13]

Answer:

2.325

Step-by-step explanation:

i used a calculator ,i think i did it right lol

5 0
3 years ago
Megan baby-sat this weekend. She earned $12 an hour plus an additional $32. If she made a total of $140, how long did she work?
Hunter-Best [27]

Answer:

9 hours

Step-by-step explanation:

12x+32=140

so

140-32=108

108/12= 9

x=9

6 0
3 years ago
Read 2 more answers
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