The answer is 1. f(a) = –2a^2 – 5a + 4. If a = -3, then to find f(-3) we
have to substitute a in the general formula. f(a) = –2a^2 – 5a + 4 = -2
* a^2 – 5 * a + 4. Substitute a with -3. f(-3) = –2 * (-3)^2 – 5 * (-3)
+ 4 = -2 * 9 - (-15) + 4 = -18 + 15 + 4 = 1
Explanation which begins with '<span>A cylinder is like a stack of circles.'
Formula of volume of cylinder is: <u>V=</u></span><u>π*R²*h</u>, where π≈3.1415, R - radius of the circle, h - height of the cylinder.
I think it’s c sorry if it’s wrong
Answer:
Orange per kg = 62.5 rupees
Mango per kg = 39.0625 rupees
Step-by-step explanation:
Given that:
Cost of 2kg orange = 3.2 times the cost of 1kg mango
If 4 kg oranges = 250 ruppess
The cost per kg of mangoes and oranges is :
Cost of orange per kg:
Cost of 4kg / number of kg
250 / 4 = 62.5 ruppess
Cost of 2kg orange = 3.2 times the cost of 1kg mango
Let cost of 1 kg mango = x
2 * 62.5 = 3.2 * x
125 = 3.2x
x = 125 / 3.2
x = 39.0625
its C
Step-by-step explanation:
- 2\sqrt5
this is the tan©
but you have to multiply by sqrt 5
so its become -2sqrt5/5