Answer:
-69 +92 i (here 'i' is imaginary value)
Step-by-step explanation:
step:-
Given (3-4 i)(-2-21)
on multiplication, we get
(3-4 i)(-2-21) = 3(-2) -3(21) - 4 i (-2) +4 i(21)
= -6 -63 + 8 i +84 i
= -69 +92 i
-69 + 92 i is a complex number.
real part x = -69
imaginary part y = 92
Answer:
3/8
Step-by-step explanation:
1/2 of a yard is 4/8 of a yard, so you can subtract 7-4 to get 3/8 of a yard.
Answer:
124.71
Step-by-step explanation:
V=1
/4h√a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4
a,b,c= base sides
h= height
V=1
/4(8)√(6)^4+2(6x6)^2+2(6x6)^2﹣(6)^4+2(6x6)^2﹣(6)^4
V= 124.71
Step-by-step explanation:
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Answer:
f(4) = - 1
Step-by-step explanation:
To evaluate f(4) substitute x = 4 into f(x) , that is
f(4) = 5(4 - 7) + 14 = 5(- 3) + 14 = - 15 + 14 = - 1
