Your answer is
Here's how:
Step 1: Add 1 to both sides. 10x + 2y = 15 + 1
Step 2: Simplify 15 + 1 to 16. 10x + 2y = 16
Step 3: Factor are the common term 2. 2(5x + y) = 16
Step 4: Divide both sides by 2. 5x + y = 16/2
Step 5: Simplify 16/2 to 8. 5x + y = 8
Step 6: Subtract y from both sides. 5x = 8 - y
Step 7: Divide both sides by y. x = (8-y) / 5
This answer is if you want to solve for x! If you want to solve for y, let me know and I'll change my answer! Have a nice night!
Answer:
The answer to your question is x = 66.42° and x = 293.6°
Step-by-step explanation:
Data
cos x = 2/5
x = ?
Process
1.- Look at the sign of 2/5.
2/5 is positive so the angle we are looking for is in the first or the fourth quadrant.
2.- Remember the side that the trigonometric function relates
cos x = Adjacent side / hypotenuse
then, adjacent side = 2
hypotenuse = 5
3.- Get cos⁻¹ x
cos⁻¹x = x = 66.42°
4.- If the angle is in the first quadrant x = 66.42°
5.- If the angle is in the fourth quadrant x = 293.6°
Answer:
Step-by-step explanation:
we know that
In the triangle abc
if
then
Because, the sum of the interior angles in a triangle must be equal to 180 degrees
therefore
Triangle abc is a right triangle
see the attached figure to better understand the problem
The sine of angle a is equal to divide the opposite side to angle a by the hypotenuse
so
The cosine of angle b is equal to divide the adjacent side to angle b by the hypotenuse
so
therefore
When two angles are complementary, the sine of one angle is equal to the cosine of the other angle and the cosine of one angle is equal to the sine of the other angle
so
With these values x = 14.
In order to find this, we must note that LM will be half of KM (since L is the midpoint). Because we know this, we also know that we can multiply LM by 2 and set equal to KM.
2LM = KM
2(2x + 4) = 5x - 6
4x + 8 = 5x - 6
8 = x - 6
14 = x
Answer:
Step-by-step explanation:
Given
Required
Find x if
The above implies that:
Collect like terms
Using quadratic formula, we have;
Where
Split
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