Answer:
f(-3)
f(a) = -2a² - 5a + 4
Substitute a with its value, -3
f(-3) = -2(-3²) - 5(-3) + 4
f(-3) = -2(9) + 15 + 4
f(-3) = -18 + 19
f(-3) = 1
the value of f(-3) is 1.
Answer:
B.
Step-by-step explanation:

Answer:
side length is
feet
Step-by-step explanation:
An equilateral triangle has a height of 10 feet. the height of the triangle is the perpendicular bisector to the base
so it forms a two right angle triangle
the triangle formed is a 30-60-90 degree triangle
the diagram is attached below
Let x be the side if the equilateral triangle
sin(theta)=opposite by hypotenuse


cross multiply


Answer:
It’s a domain
Step-by-step explanation:So they value is 5