Answer:
One Solution
Step-by-step explanation:
x + 3y = 3
x - y = -3
4y = 6 Subtract to solve by elimination.
y = Divide by 4.
x - = -3 Substitute
for y in the original equation.
x = - Add
.
A round race track has a radius of 75 yards. What is the circumference of the race track?
2 answers:
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The expression in radical form is
In order to express the given indices expression in radical form, we need to ensure there is a square root present in the resulting expression.
According to the law of indices,
Given the indices
Comparing with the general formula, we will see that:
m = 3
n = 7
a =
Applying the law of indices:
Hence the expression in radical form is
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Answer:
Step-by-step explanation:
Given,
Time taken in one rotation of earth = 23 hours, 56 minutes and 4 seconds.
Since, 1 minute = 60 seconds and 1 hour = 3600 seconds,
⇒ Time taken in one rotation of earth = (23 × 3600 + 56 × 60 + 4) seconds
= 86164 seconds,
Now, the number of radians in one rotation = 2π,
That is, 86164 seconds = 2π radians
Hence, the number of radians in one second is