9514 1404 393
Answer:
b. 55°
Step-by-step explanation:
Complementary angles have a sum of 90°.
∠ABC +∠CBD = 90° . . . . . . the given relation
∠ABC + 35° = 90° . . . . . . . . . substitute the given value
∠ABC = 55° . . . . . . . . . . . . . . subtract 35° from both sides
∠ABC = ∠EBF = 55° . . . . . . vertical angles are congruent
Step-by-step explanation:
The sample space is the list of possible combinations:
H1, H2, H3, H4, T1, T2, T3, T4
Combinations that include a 2 are:
H2, T2
Answer:
option c
Step-by-step explanation:
(4 - 2i) + (12 + 7i)
multiply the brackets first
4 - 2i + 12 + 7i
combine like terms
16 + 5i
Answer:
B:x^4-8x^2-16
Step-by-step explanation:
B: 
is in standard form.
That's almost the exact definition word for word. (Usually they are described separately).
Absolutely true!!!
