Answer:
34
Step-by-step explanation:
(3 + 5i)(3 - 5i) = 9 - 25i^2
because i^2 = -1 9 - 25i^2 = 9 - 25x-1 = 34
hope this helped
Answer:
k = 13The smallest zero or root is x = -10
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note: you can write "x^2" to mean "x squared"
f(x) = x^2+3x-10
f(x+5) = (x+5)^2+3(x+5)-10 ... replace every x with x+5
f(x+5) = (x^2+10x+25)+3(x+5)-10
f(x+5) = x^2+10x+25+3x+15-10
f(x+5) = x^2+13x+30
Compare this with x^2+kx+30 and we see that k = 13
x^2+13x+30 = 0
(x+10)(x+3) = 0
x+10 = 0 or x+3 = 0
x = -10 or x = -3
The smallest zero is x = -10 as its the left-most value on a number line.
Step-by-step explanation: Hope this helps kind of.
Answer:
C
Step-by-step explanation:
It closely resembles to a sphere.
Answer:
15.01
Step-by-step explanation:
Tangent=Opposite/adjacent
Tan(65)=?/7
Tangent of 65 x 7=
15.01
