Option 1 : -22
using formula
(a + b )(a - b ) = a^2 - b^2
(√10 + 2√8) (√10 - 2√8)
= (√10)^2 - (2√8)^2
= 10 - 2×2×8=10-32
= -22
2nd question answer is option 3
Answer:
x = 23°
Step-by-step explanation:
90 = 3x - 9 + x + 7
90 = 4x - 2
92 = 4x
x = 23°
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-Chetan K
Answer:
The width is 32 inches
Step-by-step explanation:
Answer:
23x + 49
Step-by-step explanation:
4 (5x+15-2)+3x-3
subtract the numbers
4 (5x+13)+3x-3
distribute 4
20x+52+3x-3
23x+52-3
subtract
23x+49
Answer:
Step-by-step explanation:
sinx = 17/22
x = arcsin(17/22)
x = 50.599431246...°
x = 51°
