Answer:0.8413
Step-by-step explanation:
Mean= 188, Std Dev. =20.8, Z=(x-mean)/Std Dev
P(X less than 167.2)= P(Z less than (167.2-188)/20.8)
=P(Z less than (-20.8/20.8))
=P(z less than -1)= P(Z less 1)
The value of 1 in the normal distribution table is 0.3413
So we add 0.5 to 0.3413 =0.8413
Answer:
Step-by-step explanation:Factor the left side of the equation.
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(
y
−
1
)
(
y
2
+
9
)
=
0
Set
y
−
1
equal to
0
and solve for
y
.
Tap for more steps...
y
=
1
Set
y
2
+
9
equal to
0
and solve for
y
.
Tap for more steps...
y
=
3
i
,
−
3
i
The solution is the result of
y
−
1
=
0
and
y
2
+
9
=
0
.
y
=
1
,
3
i
,
−
3
i
Answer:
m∠RPS = 38°.
Step-by-step explanation:
It is given that ray PT is the angle bisector of angle RPS. It means PT divides the angle RPS in two equal parts.
Now, it is clear that
Therefore, the measure of angle RPS is 38°.
Just put the numbers under one square root symbol and try to simplify.
