Answer:
11 (i think.. 80% sure)
Step-by-step explanation:
b=-4
-4*c=7
add 4 to 7
c=11
Answer:
4
Step-by-step explanation:
Given
2 - (1 - 2i) + (4 - 5i) - (1 - 3i) ← distribute parenthesis
= 2 - 1 + 2i + 4 - 5i - 1 + 3i ← collect like terms
= 4
Answer:
11) Yes.
12) No.
13) Yes.
14) Yes.
Step-by-step explanation:
If the three values come out true in the Pythagorean Theorem, then they form a right triangle.
11)
a² + b² = c²
60² + 63² = 87²
3600 + 3969 = 7569
7569 = 7569
Yes.
12)
a² + b² = c²
32² + 60² = 67²
1024 + 3600 = 4489
4624 ≠ 4489
No.
13)
a² + b² = c²
7² + 24² = 25²
49 + 576 = 625
625 = 625
Yes.
14)
a² + b² = c²
65² + 72² = 97²
4225 + 5184 = 9409
9409 = 9409
Yes.
