4^2 + b^2 = 12^2
16 + b^2 = 144
B^2 = 144-16
B^2 = 128
B= 11.3
Lets take away 2 white chips...
8 black and 4 white...total of 12 chips
P(black) = 8/12 = 2/3
remove 2 white chips <==
<span>exact value of sin 157.5 without using a calculator
sin(157.5)=sin(315/2)
Identity: sin(x/2)=±√[(1-cosx)/2]
select positive identity since 175 is in the 2nd quadrant where sin>0
sin(315/2)=√[(1-cos315)/2]
cos 315=cos45 in quadrant IV=√2/2
sin(315/2)=√[(1-√2/2)/2]=√[(2-√2)/4]=√(2-√2)/2
sin(157.5)=√(2-√2)/2
check using calculator:
sin157.5º≈0.382...
√(2-√2)/2≈0.382...</span>
Step-by-step explanation:
two sides of length =0.6 and 1.6
lengths for the third side,X =?
= 0.6+1.6=2.2
lengths for the third side of X=2.2
Answer:
The volume of a cylinder:
Step-by-step explanation:
-To find the volume of a cylinder, you first need the formula:
diameter
height
-Use the following diameter and height for the formula:
-Then, you solve:
-Since the hundredth place is 2, It cannot be rounded to the nearest hundredths place, so it would be:
