Answer:
-4 <u>+</u> 2*sqrt(5)
Step-by-step explanation:
2x^2+16x-8=0
Factor out the 2: 2(x^2+8x)-8=0
Add (b/2)^2 = (8/2)^2 = 16
2(x^2+8x+16)-8 = 0 + 2*16
2(x+4)^2=40
(x+4)^2=20
x+4=<u>+</u>sqrt(20)
x=-4<u>+</u>sqrt(20) = -4 <u>+</u> 2*sqrt(5)
Answer:
The answer should be "B" (The area of △RST is equal to the area of △LMN.)
Answer:
Miranda is correct because the value 7 makes the equation equal
<em>I am not sure what goes in the blanks, those are my best guesses.</em>
Step-by-step explanation:
34 = 27 + p
7 = p
Hopefully this helps!
Brainliest please?
Answer:
Step-by-step explanation:
Consider the quadratic expression
First, find its discriminant:
Note that 
then 
Use quadratic formula to find the roots:
Now, given quadratic expression is equivalent to
Point A would be zero; Point B, the end of the 1/2-hour time interval, would be 1/2 (representing 1/2 hour). Then Amy needs to subdivide the interval A to B into three equal time intervals and to determine the length of each of these subintervals.
I would begin with 1/2 and divide that by 3:
1
--
2
====
3
--
1
Inverting the fraction in the denom. and multiplying, we get
1 1 1
-- * ---- = -----
2 3 6
So Amy will spend 1/6 th of an hour, or 10 minutes, on each chore.
Note that 3 times 1/6 comes out to 1/2 (hour), which is were we started.
