17 trillion in scientific notation
X³=125
1.7 x 10^13
The cube root of 125 is 5. Hence, x = 5.
(5×)°
It's not possible to give an exact answer to "(5×)°" because there is no value or variable to which the exponent would be applied.
In general, an expression with the degree notation (°) means that the entire expression should be raised to the exponent given.
For example, if we had (5x)³°, this would mean to raise the entire expression of 5x to the 3rd power, which would be (5x)³ = 125x³.
However, in the case of just (5×)°, we can't determine what it means without additional information.
Mr t. can travel a certain distance in 3hours 30 minutes at an avarage speed of 90km At what avarage speed he travel to complete the trip in 3hours
Let's say the distance he needs to travel is "d" km.
From the given information, we know that he can travel "d" km in 3 hours and 30 minutes (or 3.5 hours) at an average speed of 90 km/h. We can use the formula:
Speed = Distance ÷ Time
To find the distance, we can rearrange the formula:
Distance = Speed × Time
So the distance "d" that Mr. T can travel in 3.5 hours at 90 km/h is:
d = 90 km/h × 3.5 h
d = 315 km
Now we need to find at what average speed Mr. T needs to travel to complete the trip in 3 hours. We know the distance is "d" km and the time is 3 hours, so we can use the formula again to solve for the speed:
Speed = Distance ÷ Time
Speed = d ÷ 3
Speed = 315 km ÷ 3 hours
Speed = 105 km/h
Therefore, to complete the trip in 3 hours, Mr. T needs to travel at an average speed of 105 km/h.
Calculate the simple interest on R4 400 at 4% per annum for 7 years
The formula to calculate the simple interest is:
Simple Interest = (Principal × Rate × Time) ÷ 100
where:
- Principal is the initial amount invested or borrowed.
- Rate is the annual interest rate, as a percentage.
- Time is the number of years for which the interest is calculated.
In this case, the principal is R4 400, the rate is 4%, and the time is 7 years. We can plug in these values in the formula and calculate the simple interest:
Simple Interest = (4400 × 4 × 7) ÷ 100
Simple Interest = (123200) ÷ 100
Simple Interest = 1232
Therefore, the simple interest on R4 400 at 4% per annum for 7 years is R1 232.