90°
Cuz,
Perpendicular dropped on the point when a tangent touches a circle from its centre make an angle of 90°
Answer:
The value of the bond when Tyler's mom purchased it was $150
Step-by-step explanation:
we know that
In this problem we have a exponential function of the form
where
a is the initial value (y-intercept)
b is the base
r is the rate
b=(1+r)
In this problem
r=4%=4/100=0.04
b=1+0.04=1.04
substitute
where
x is the number of years since the savings bond was purchased
f(x) is the value of the savings bond
For x=1
f(x)=$156
substitute
Solve for a
therefore
The value of the bond when Tyler's mom purchased it was $150
Answer:
.
c)"At least 1 O+" is equivalent to "not none O+" (forgive the incorrect English).
P(not none O+)+P(none O+)=1
P(not none O+)=1-P(none O+)
P(not none O+)=1-0.00491
P(at least 1 O+)=0.995
Step-by-step explanation:
Answer:
<h2>4</h2>
Step-by-step explanation:
the equation is
36 = 4+8x
when you solve for x the answer is 4
Answer:
225
Step-by-step explanation:
Mary = 3x (3 times Carey)
Carey = x
Barry = x/2 (Because Carey read twice as many as Barry, it means he read half the amount Carey did)
3x + x + x/2 = 405
4x + x/2 = 405
8x/2 + x/2 (treat these as fractions) = 405
9x/2 = 405
9x = 810 (cross multiply)
x = 90
Mary = 3(90) 270
Carey = 90
Barry = 90/2 45
Mary - Barry
270 - 45 = 225
Hope this helps! :)
