Answer:
9.38cm
Step-by-step explanation:
you have a right triangle. use pathagorean
x^2 + 9^2 = 13^2
x^2 + 81 = 169
x = √88
x = 9.38
Answer:
Y=2×+13
Step-by-step explanation:
2×+3=0
2×=0-3
you use 3 to divide it self =×
×=3
Answer:
4
Step-by-step explanation:
4
Answer:
9x +135
Step-by-step explanation:
9(x + 8) +63 (by PEDMAS distribute 9 into parentheses first)
= x(9) + 8(9) +63
= 9x + 72 + 63
= 9x +135 [ =9(x+15) ]