Since <span><span>−y</span></span> does not contain the variable to solve for, move it to the right side of the equation by adding <span>y</span> to both sides.<span>x=<span>y+<span>30</span></span></span>
Answer:
7.5 units squared
Step-by-step explanation:
Equation for solving the area is A = 1/2h(b1 + b2).
The bases here have a length of 4 and 1, so we add them together. The height is 3, so our equation is 1/2 * 3(5) = 7.5
Answer:
Step-by-step explanation:b
Answer:
a = 4
Step-by-step explanation:
Since the triangle is right use the tangent ratio to find a, that is
tan30° = 
= 
Multiply both sides by 12
12 × tan30° = a
12 × 
= a
Rationalise the denominator on the left side by multiplying the numerator/ denominator by
12 × 
= a ( cancel the 12 and 3 )
a = 4
