Answer:
a. 5.396
b. 0.123
c. 0.563
d. 18.938
Step-by-step explanation:
We know that , In every hour there are two positions in which hands are at right angle. Each of these positions is repeated 11 times in every 12 hours. ∴ In every 12 hours, hands are at right angles 11 + 11 = 22 times and in a day hands are at right angles 22 + 22 = 44 times.
Answer:
see explanation
Step-by-step explanation:
The error is in Step 1, by not adding 2 on the left side, that is
Given
7.7 = w - 2 ( add 2 to both sides )
7.7 + 2 = w - 2 + 2
9.7 = w
Answer:
Try -17/22
Step-by-step explanation:
Multiply the numbers
r-<u>1 • 5/22</u> =-1
Which is just
r- 5/22 =-1
Add 5/22 to both sides of the equation
r- 5/22 + 5/22 = <u>-1 + 5/22 </u>
which equals r= <u>-17/22</u>
Answer:
51 cm²
Step-by-step explanation:
rectangle = 6x12=72
triangle = 1/2(7)(6)=21
Non-shaded=72-21=51 cm²