Answer:
-7
Step-by-step explanation:
Answer:
Step-by-step explanation:
sorry i wish i know how but i don't know how to do this but if there's other stuff you don't understand i can help you
Axis of symmetry is the x value of the vertex
the x value of the vertex, in form
y=ax^2+bx+c is -b/(2a)
so
y=-5x^2-10x-15
a=-5
b=-10
x value of vertex is -(-10)/(2*-5)=10/-10=-1
x=-1 is axis of symmetry
Answer:
Tan is the ratio of "opposite" side to "adjacent side
Cos is the ratio of "adjacent" to "hypotenuse"
Sin is the ratio of "opposite" to "hypotenuse"
We will write the trig ratios with respect to the angle "x"
Opposite Side is "c"
Adjacent Side is "b"
Hypotenuse is the side opposite of 90 degree angle, "a"
Now, let's write the ratios:
Step-by-step explanation:
15 cookies burned. 3/4 Is equal to 75% so you want to take 75% of 20. OF always mean multiply, but first we divide by 100 to get it into a decimal so 0.75 X 20 equals 15 (if you punch into calculator) so only 5 cookies are not burned. but the 3/4 that for burnt were the other 15
