In this triangle, which of the following is true?
2 answers:
Answer:
Option C. x = 55° and a = 11.47 is the correct option.
Step-by-step explanation:
As we know sum of all angles of a triangle = 180°
Therefore in the triangle given
35° + 90° + x = 180°
125° + x = 180°
x = 180° - 125° °°
x = 55°
Now we we find the sine of 35°
sin35° =
sin35°=
0.5736 =
a = 20×0.5736
a = 11.47 units
Therefore, option C. x = 55° and a = 11.47 is the correct option.
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So, this problem is asking us to find the value of our variable u.
How can you do this? By isolating the variable, or having only it on one side of the equals sign.
Here's the step by step approach. It's just simple algebra and reverse order of operation (which is what you should do whenever you are solving for a variable).
Multiply both sides by 11 to get rid of the 11 denominator.
Then, subtract both sides by 88 to get u by itself.
Therefore, u is equal to 99.
How can you do this? By isolating the variable, or having only it on one side of the equals sign.
Here's the step by step approach. It's just simple algebra and reverse order of operation (which is what you should do whenever you are solving for a variable).
Multiply both sides by 11 to get rid of the 11 denominator.
Then, subtract both sides by 88 to get u by itself.
Therefore, u is equal to 99.
Answer:
The quotient is : x+9
The remainder is : 13
Step-by-step explanation:
The question requires you to perform the long division method;
This will be;
start with the x term in x-2 and the first term in the function, x², to get x then multiply the x with x-2 to get x²-2x and perform the operation below;
x-2√x²+7x-5 -----------to first get x and then multiply x*[x-2]⇒x²-2x
- x²-2x+0 ------------perform subtraction of like terms
---------------------
9x-5 ----now divide this answer by x-2 ,starting with x and 9x
----------------------This will give , 9 then multiply 9 by x-2 to get 9x-18 and perform the subtraction operation as;
9x-5
- 9x-18
------------------------
13
So the answer will be; x+9 remainder 13