simplify
(8*10^7)(7*10^4)
i think it's 5.6*10^10
simplify
(3*10^6)(8*10^-4)
i think it's 2.4*10^3
Astronomers measure large distances in light-years. One light-year 5.88*10^12 mi
Star is 9.8*10^1 light years from Earth
in scientific notation how many miles
I think it's 5.88*10^12 miles
Radio signals travel 3x10^8 mi/sec
How long would it take to travel from satellite to Earth surface if orbiting at height of 4.2*10^7 mi
I think it's 1.26*10^15 seconds
simplify
(4/7y^5)^2
I think it's 8/14y^10
(t^4/10y^4)^-4
I think it's -40t^16/4y^16
Does the rule -3(4^x) represent an exponential function?
I think yes.
3,300.00 principal 4% interest compounded annually after 3 years what's the balance
i think it's $3,712.05
3,500.00 principal 3% interest compounded semiannually. After 20 years what's the balance.
i think it's $6,349.06
A car costs $25,750.00 and decreases value 20% per year
How much worth after 5 years?
I think it's $8,240.00
An investment account earns 4% per year compounded annually. If the initial investment was 4,000.00, how much is in the account after 3 years? Round your answer to the nearest dollar.
I think it's somewhere around $4,520
simplify
(8*10^7)(7*10^4)
i think it's 5.6*10^10 < --- incorrect
simplify
(3*10^6)(8*10^-4)
i think it's 2.4*10^3 < --- correct
Astronomers measure large distances in light-years. One light-year 5.88*10^12 mi
Star is 9.8*10^1 light years from Earth
in scientific notation how many miles
I think it's 5.88*10^12 miles < --- incorrect
Radio signals travel 3x10^8 mi/sec
How long would it take to travel from satellite to Earth surface if orbiting at height of 4.2*10^7 mi
I think it's 1.26*10^15 seconds < --- incorrect
< --- ridiculous question, no orbit is that far away, the sun is only 150 million miles away
simplify
(4/7y^5)^2
I think it's 8/14y^10 < --- incorrect
(t^4/10y^4)^-4
I think it's -40t^16/4y^16 < --- incorrect
Does the rule -3(4^x) represent an exponential function?
I think yes. < --- correct
3,300.00 principal 4% interest compounded annually after 3 years what's the balance
i think it's $3,712.05 < --- correct
3,500.00 principal 3% interest compounded semiannually. After 20 years what's the balance.
i think it's $6,349.06 < --- correct
A car costs $25,750.00 and decreases value 20% per year
How much worth after 5 years?
I think it's $8,240.00 < --- incorrect
An investment account earns 4% per year compounded annually. If the initial investment was 4,000.00, how much is in the account after 3 years? Round your answer to the nearest dollar.
I think it's somewhere around $4,520< --- incorrect