A^2 + B^2 = C^2
6^2 + B^2 = 7^2
36 + B^2 = 49
B^2 = 13
B = 3.61
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Answer:
Angle of A = 90 degree-62 degree = 28 degree.
Step-by-step explanation:
tan (62) = opposite / adjacent = 10 / a ---> a = 10/tan (62) = 10/ 1.88 = 5.319
cos (62) = a/c --->c = a/cos (62) = 5.319 / 0.47 = 5.3 / 0.47 = 11.3
or another way.
sin (62) = 10 /c ---> c = 10/ sin (62) = 10 / 0.88 = 11.3
So Angle of A = 28 degree.
a = 5. 3
c = 11.3.
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The answer and explanation in the pic below
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Angle C, it sounds obvious but they correspond to the angle in the same order as them, as both E and C are in the middle it has to be C.
Remember that to find the zeroes of a quadratic expression of the form

we could either factor it or use the quadratic formula. When

, like in our case, is often way easier and faster factor the expression than using the quadratic formula. The only thing we need to do to factor the expression is find tow number whose product is 48 and its sum is 14; those numbers are 6 and 8.

and

. Now we can factor our quadratic like follows:

Since we are trying to find the zeroes of the function, we are going to set each one of our factored binomial equal to zero and solve for x:


and


We can conclude that the zeroes of the function

are

and

.