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zlopas [31]
3 years ago
7

Solve the given right triangle for its missing angle and side measures.

Mathematics
1 answer:
siniylev [52]3 years ago
5 0

Answer:

m∠D = 55°, DE ≈ 8.40 units, DF ≈ 14.65 units

Step-by-step explanation:

got it right on the test

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Is 13.3808315197 a rational number? Need an answer fast!
LenKa [72]
Yes, because it terminates.
3 0
4 years ago
4(6)^x 864 for x answer for x
DanielleElmas [232]

Answer:

  x = 3

Step-by-step explanation:

Maybe you want the value of x such that ...

  4(6^x) = 864

<h3>Solution</h3>

Dividing by 4 gives ...

  6^x = 216

You may know that 216 = 6^3. Using that, we can equate exponents:

  6^x = 6^3

  x = 3

Alternatively, we can use logarithms to find x. Taking logs gives ...

  x·log(6) = log(216)

  x = log(216)/log(6) = 3

5 0
2 years ago
What is the mean absolute deviation of attendance at the 4 middle school dances?
Mice21 [21]

Answer:

Hope this helps you to understand, to do the problem and for future problems!

Step-by-step explanation:

All you have to do is take the numbers, add them, then divide them by how much there are. Once you did that if its a negative you just turn it positive bc its absolute.

4 0
4 years ago
Estimate the error if t6 (trapeziod rule with n=6) was used to calculate ∫30cos(2x)dx.
Hunter-Best [27]
The error bound for a trapezoid rule is given with this formula:
|E_t|\leq\frac{K(b-a)^3}{12n^2}
Where n is the number of points we used in the approximation, a and b are starting and ending point of an integral, and K is the number such that:
|f''(x)|\leq K
In order to find K we must find the second derivative of our function:
f(x)=30\cos(2x)\\ f'(x)=-60\sin(2x)\\ f''(x)=-120\cos(2x)
From this, we can see that our K is 120. This is the amplitude of this periodic function.
Now we can calculate the error bound:
E_t|\leq\frac{120(b-a)^3}{12\cdot6^2}=\frac{120}{432}(a-b)^3
Since you did not specify the interval of integration I cannot compute the final error bound. You can simply plug in the numbers to get the answer.
7 0
3 years ago
PLSSSS HELPP ASSPPPP!!!!
Ne4ueva [31]
The rate of change is 1.5
8 0
4 years ago
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