Answer:
Option C) -cosu is correct
Therefore the simplified expression is
Step-by-step explanation:
Given expression is
To find the value of the given expression :
By using the formula
Substitute A=u and in the above formula we get
( here and )
Therefore option C) -cosu is correct
Therefore the simplified expression is
Answer:
3x + 2y = 38, 3a + 2b = 38
Step-by-step explanation:
An equation may be defined as a statement that shows two mathematical expressions to be equal. It is to equate one thing to another thing.
In the context, two different equations for the situations are :
i). Let the shirt be represented by x
And the socks be represented by y
Therefore, according to the question,
3x + 2y = 38
ii). Let the shirt be represented by a
And the socks be represented by b
Therefore, according to the question,
3a + 2b = 38
<h2>Firstly, we let for the number to be any number or letter.</h2>
Step-by-step explanation:
The above pictures shows working.
Answer:
x = 20
Step-by-step explanation:
The congruence statement tells you that angle A is congruent to angle D. (Both are listed first in the triangle names.) This means ...
∠A = ∠D
3x -10 = 2x +10
x = 20 . . . . . . . . . . add 10-2x to both sides