we know that
In the right triangle DEF
the tangent of the angle F is equal to
substitute the values
therefore
the answer is the option
Answer:
Step-by-step explanation:
We know that for any angle x in a triangle ,
Now, for the given triangle DEF, the value of tan(F) is given by :-
Hence, the value of tan(F) =
b. 80 minutes
c. 200 minutes
d. 240 minutes HELP?!
Answer:
If they work together, they take 48 minutes to line the football field.
Step-by-step explanation:
Given: Reggie can line a football field in 120 minutes. Rosalinda can line a football field in 80 minutes.
To find : If they work together, how many minutes does it take them to line a football field?
Solution :
If they work together,
Let the number of minutes(x) they take to line the foot ball field.
According to question,
Cross multiply,
Therefore, If they work together, they take 48 minutes to line the football field.
Answer: If they work together, they can line a football field in 48 minutes.
Step-by-step explanation: Given that Reggie can line a football field in 120 minutes and Rosalinda can line a football field in 80 minutes.
We are to find the number of minutes does it take them to line a football field if they work together.
We have
Time taken by Reggie to line a football field = 120 minutes.
So, in 1 minute, Reggie can line part of the field.
Time taken by Rosalinda to line a football field = 80 minutes.
So, in 1 minute, Rosalinda can line part of the field.
Therefore, if they work together, the portion of the football field that they can lie in 1 minute is given by
Thus, if they work together, they can line a football field in 48 minutes.
Answer:
This infinite geometric series is divergent and thus we cannot find the sum. The sum is infinity.
Step-by-step explanation:
There are two types of geometric series: convergent and divergent.
The sum of an infinite geometric sequence is given by the formula:
Sum =
Where,
r is the common ratio and
If absolute value of r is NOT less than 1, then the series is divergent and sum cannot be found.
For our given problem, , clearly , which is NOT less than 1, so the series is divergent and sum cannot be found.
First, we are going to find the conjugate of our complex number. Remember that to find the conjugate of a complex number we just need to keep the real part and change the sing of the imaginary part.
We can infer from our problem that the real part of our complex number is 3 and its imaginary part is . We are going to keep the real part 3 and change the imaginary part from positive to negative, so our conjugate is .
Next, we are gong to multiply both the complex number and its conjugate using the distributive property:
Remember that , so:
We can conclude that the product of the multiplication of the complex number 3+3i and its conjugate, 3-3i, is 18.
Product of complex number and its conjugate will be 18 .
Complex number : x ± iy
Given , 3 + 3i
Conjugate pair of complex number = x ± iy
So, the complex conjugate pair are :
3 + 3i and 3 - 3i
Product of complex conjugate pair,
(3 + 3i) (3 - 3i)
Open the brackets,
= 9 - 9i + 9i - 9i²
Here, i = √-1 ; i² = -1
Substitute the value of iota(i),
= 9 -9i + 9i +9
= 18
Thus the product value is 18.
Know more about complex numbers,
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