Answer:X1=1+-1+i(2)^1/2
x2=-1-i(2)^1/2
Step-by-step explanation
y=y
-2x+1=-x^2+4
x^2+4+2x-1=0
x^2+2x+3=0
Use
Ax^2+Bx+C=0
X1,X2=[-B+(B^2-4*A*C)^1/2]/2*A
A=1
B=2
C=3
x=[-2+/-(2*2-12)^1/2]/2
x=[-2+/-(-8`)^1/2]/2
x=[-2+/-2i(2)^1/2]/2
x1=-1+i(2)^1/2
x2=-1-i(2)^1/2
Answer:
520/3 cubic feet
Step-by-step explanation:
You can divide this figure into 2 parts for easy calculation; a pyramid and a rectangular prism. You can find the volume of the rectangular prism by multiplying together all of the side lengths. 3*4*10=120 ft^3. To calculate the volume of a pyramid, you simply need to use the formula , which in this case is . Adding the 120 cubic feet from earlier, you get a total of . Hope this helps!
Answer:
B. -20
Step-by-step explanation:
8/d = -12/30
We can use cross products to solve
8 * 30 = d* -12
240 = -12 d
Divide each side by -12
240/-12 = -12d/-12
-20 = d
Answer:
1.5>gh
Step-by-step explanation:
The answer is A 5*3=15 it must be an equal proportion so 6*x =15