9y+68+ 5y= 180
14y+68= 180
-68 -68
14y= 112
Y= 8
Now that we know what y is, we can plug it into the equation for angle B and find its actual angle measurement.
9(8)+ 68= 72+ 68= 140
So its 140 degrees.
Answer:
Right
Step-by-step explanation:
One of the angles is 90 degrees.
You move the decimal point forward until it reaches the one so it looks like this:
1.4 x 10⁵
the exponent, 5, just tells you how many spaces the decimal point moved.
218, 314 are the two values do the middle 95% of the lengths of all pregnancies fall.
Just incase u need the work. Its C.
Area of entire circle = (pi)(r^2) and r = d/2:
<span>A =(3.142)((3.2^2) = 32.17m^2 </span>
<span>Portion of circle in sector: </span>
<span>185degrees/360degrees = 0.514 </span>
<span>Multiply: </span>
<span>0.514(32.17m^2) = 16.5m^2 to 1 dp </span>