Answer:
4 pages
Step-by-step explanation:
48 divided by 12 = 4
Answer:
the answer is 3 and 7
Step-by-step explanation:
Angles formed when a transversal line cuts across two straight lines are known as corresponding angles. Corresponding angles are located in the same relative position, an intersection of transversal and two or more straight lines.
Step-by-step explanation:
2×2.5x+2×8=11
5x+16=11
5x=11-16
5x=-5
x=-1
Answer:
x=5, -1
Step-by-step explanation:
I think you mean 2x^2-8x-10=0
2x^2-8x-10=0
Factor out a 2 (0/2 is still 0)
2(x^2-4x-5)=0
Divide by 2
x^2-4x-5=0
Find something that MULTIPLIES to get -5 and ADDS up to get -4, then factor
(x-5)(x+1)=0
Make each set =0
x-5=0
x+1=0
x=5, -1
<span>8i is:
z = 8(cos(90) + i sin(90)) ; now take the 1/3 power of it.
</span><span>When we take this to a normal integer power of 3 we get:
z^3 = 8^3(cos(90*3) + i sin(90*3)) right? its the same for rational exponents as well.
</span>
<span>z^(1/3) - 2(cos(90/3) + i sin(90/3))
</span>
<span>90/3 = 30; the cos(30)=sqrt(3)/2 and the sin(30) = 1/2
2(sqrt(3)/2 + i 1/2) = sqrt(3) + 1i should be one of the cube roots.
</span>
<span>(sqrt(3) + i)^2 = 2 +2sqrt(3) i
(sqrt(3)+i) (2 +2sqrt(3)i
2sqrt(3) + 6i +2i -2sqrt(3) = 8i</span>
