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Lynna [10]
3 years ago
8

Find the balance in a $900 interest account after 10 years if the interest rate is 4.62%, compounded annually.

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
6 0
The formula is
A=p (1+r)^t

A future value?
P present value 900
R interest rate 0.0462
T time 10 years

A=900×(1+0.0462)^(10)
A=1,413.81

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Write an equation in slope intercept form of the line that passes through the given point and is paraell to the graph of the equ
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1.) x = -3...this is a vertical line with an undefined slope. A parallel line to a vertical line is also a vertical line. A vertical line is represented by x = a number....that number being the x coordinate of ur point(4,2).
so ur parallel line is : x = 4 <==
=================
2.) y = -3/2x + 6....slope here is -3/2. A parallel line will have the same slope.

y = mx + b
slope(m) = -3/2
(2,-1)...x = 2 and y = -1
now we sub into the formula and find b, the y int
-1 = -3/2(2) + b
-1 = -3 + b
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so ur parallel line is : y = -3/2x + 2 <==
===================
y = -x - 2....the slope here is -1. A parallel line will have the same slope

y = mx + b
slope(m) = -1
(2,-2)...x = 2 and y = -2
now we sub into the formula and find b, the y int
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-2 = -2 + b
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0 = b
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8 0
3 years ago
4. Which expression is equivalent to sin(50)º?
jasenka [17]

Answer:

cos(400)

Step-by-step explanation:

Useful things:

Cofunction identity: sin(x)=cos(90-x)

Sine and cosine have period of 360 degrees.

So sin(50)=cos(40) by cofunction identity.

Since cosine has period of 360 degrees then cos(40)=cos(360+40).

That simplifies to cos(400).

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2 years ago
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some extra things...

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if you want to combine these and pick one from both, it becomes 1 over 16 or 6.25% chance of picking both correctly.

7 0
2 years ago
Given the function w(x)=2x²+5x, find w(2)
vivado [14]

\text{Put}\ x=2\ \text{to the equation of the function}\ w(x)=2x^2+5x:\\\\w(2)=2(2^2)+5(2)=2(4)+10=8+10=18\\\\Answer:\ \boxed{w(2)=18}

5 0
2 years ago
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