Answer:
D. Brandon is not correct because he should have added 6 negative unit tiles to isolate the variable in step 2
Step-by-step explanation:
Key goal is to have x on one side while the other value to the right. By subtracting 14x on both sides, you would get x+6=5. You would finally subtract 6 on both sides, not 5, to get the x by itself, thus x=-1.
Answer:
<h3>78.5</h3>
Step-by-step explanation:
<h2>I guessed and it was right...</h2>
Answer: Choice C
7 divided by cosec 50 degrees
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Explanation:
Abbreviations:
sec = secant
cot = cotangent
cosec = cosecant (csc is also a widely used abbreviation)
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Let the horizontal leg be x
This leg is opposite the angle 50 degrees. The hypotenuse is 7
Opposite = x
Hypotenuse = 7
We'll either use the sine rule or the cosecant (csc) rule
sine = opposite/hypotenuse
cosecant = hypotenuse/opposite
Since "sine" is nowhere to be found in the answer choices, we'll use the cosecant rule
-----------
cosecant = hypotenuse/opposite
csc(angle) = hypotenuse/opposite
csc(50) = 7/x
x*csc(50) = 7
x = 7/csc(50)
This is why the answer is choice C
By eliminating exponents, the <em>logarithmic</em> expression 
is equivalent to the <em>logarithmic</em> expression 
.
<h3>How to simplify logarithmic functions</h3>
In this problem we are supposed to eliminate all exponents of a <em>logarithmic</em> function by applying any of the following properties:
- ㏒ x · y = ㏒ x + ㏒ y
- ㏒ x/y = ㏒ x - ㏒ y
- ㏒ yˣ = x · ㏒ y
Now, we proceed to simplify the function:
By eliminating exponents, the <em>logarithmic</em> expression is equivalent to the <em>logarithmic</em> expression .
To learn more on logarithms: brainly.com/question/24211708
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