By "y = −9x2 − 2x" I assume you meant <span>y = −9x^2 − 2x (the "^" symbol represents exponentiation).
Let's find the first derivative of y with respect to x: dy/dx = -18x - 2. This is equivalent to the slope of the tangent line to the (parabolic) curve. Now let this derivative (slope) = 0 and solve for the critical value: -18x - 2 = 0, or
-18x = 2. Solving for x, x = -2/18, or x = -1/9.
When x = -1/9, y = -9(-1/9)^2 - 2(-1/9). This simplifies to y = -9/9 + 2/9, or
y = -7/9.
The only point at which the tangent to the curve is horiz. is (-1/9,-7/9).</span>
Rewrite 7/8 as a decimal by dividing 7 by 8:
7/8 = 0.875
Now to find how much further she has to run subtract where is now from the total distance:
0.875 - 0.3 = 0.575
She needs to run 0.575 miles more
The measure of arc LM is 116
The measure angle MBL is 58
The measure of angle MNL is 64
Answer:
260 cm
Step-by-step explanation:
formula for finding volume:
<u>l x w x h = v</u>
l=length w=width h=height v=volume
× 3 × 
= 
how did i do that?
cross multiply the whole number and the denominator together and add the product by the numerator.
= 
so,
×
× 
cross simplify(dont have to do it just makes everything easier)
and you get:
×
× 
and you get 
= 260 cm
plz give me a brainliesttttt
point slope form = y-y1 = m(x-x1)
y-2 = 3(x-1)
distribute
y-2 = 3x-3
add 2 to each side
y = 3x-1
this is in slope intercept form