Answer:
18.1 cm
Step-by-step explanation:
Work out CD
⇒ Pythagoras Theorem
Use CD and AD to work out AC
⇒ Pythagoras Theorem
Answer:
Step-by-step explanation:
- Multiply both the matrices on left side, we find:
- Comparing the corresponding elements of both the matrices on both sides, we find:
Answer:
B
Step-by-step explanation:
Given
9² × ( )² - 9
= 81 × - 9 ← cancel 81 and 9 by 9 leaving
= 9 - 9
= 0 → B
Answer:
y=-x
Step-by-step explanation:
Answer:
P(A) = 86 / 265
P(B) = 39 / 153
P(C) = 243 / 326
Note:
Missing data as follow
Number of children No job Part-time Full-time Total
0 16 39 98 153
1 86 59 126 271
2 163 80 83 326
Total 265 178 307 750
Computation:
P(A) = 86 / 265
P(B) = 39 / 153
P(C) = (163 + 80) / 326 = 243 / 326