Answer:
the midpoint would be:(0,5)
Step-by-step explanation:
Area of triangle is 36cm^2
Area of parallelogram is 45cm^2
The figure = 81cm^2
The range would be [8, 3]
In order to find the range, simply plug each end of the domain into the equation.
f(x) = -x + 5
f(-3) = -(-3) + 5
f(-3) = 3 + 5
f(-3) = 8
Then the other side
f(x) = -x + 5
f(2) = -2 + 5
f(2) = 3
Answer:
17.2°
Explanations
To find angle A, use the cosine rule.
a^2 = b^2 + c^2 - 2 × a × c cos A
4^2 = 7^2 + 10^2 - 2 × 7 × 10 cos A
16 = 49+ 100 - 140 × cosA
16 = 149 - 140cosA
16- 149 = - 140cosA
-133 = - 140cosA
cosA = 133/140
cosA = 0.95
A = 17.2°
