Answer:
Step-by-step explanation:
Step-by-step explanation:
Familiarize yourself with perfect squares in the neighborhood of 140:
10^2 = 100
11^2 = 121
12^2 = 144
Note that 140 is much closer to the perfect square than it is to the perfect square 121. The value of √140 must lie closer to 12 than to 11.
Place a point on the number line about 3/4 of the way from 11 to 12.
Answer:
QBO=12 degrees
Step-by-step explanation:
angle QAO=angle OAS so:
2x+6=4x-12
reducing:
2x=18
x=9
substituting x into QBO=3x-15 then:
angle QBO=3(9)-15=12 degrees
Answer:
13
Step-by-step explanation:
20÷1.5 since there is not X
4 because there was 8 in a double row so 8 divided by two
