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Pavel [41]
3 years ago
7

if the balance at the end of eight years on an investment of $230 that has been invested at the rate of 3% is $285.2 how much wa

s the interest​
Mathematics
1 answer:
trasher [3.6K]3 years ago
7 0
Good luck I don’t know the Nwer job nknb
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The eastbound train travels 10 miles per hour faster than the westbound train. After 2 hours, they are 232 miles apart. At what
patriot [66]

Answer:

48,58

Step-by-step explanation:

Let The speed of the west bound train be x

Let the east bound train be x+10

The speeds can be calculated as follows

2(2x+10)= 232

4x + 40= 232

4x= 232-40

4x= 192

x= 192/4

= 48

Hence the speedof the west bound train is 48

The speed of the east bound train is 48+10

= 58

8 0
3 years ago
Write a polynomial function in standard form with zeros at −3, −1, and 1.
Annette [7]

Answer:

f(x) = {x}^{3}  + 3 {x}^{2}  - x -3

Step-by-step explanation:

The given polynomial has zeros at:

x=−3, x=−1, and x=1.

This means that:

x+3, x+1, and x-1 are all factors of this polynomial.

The factored form of this polynomial is :

f(x) = (x + 3)(x + 1)(x - 1)

We expand the last two factors using difference of two squares.

f(x) = (x + 3)( {x}^{2}  - 1)

f(x) = x ( {x}^{2}  - 1) + 3( {x}^{2}  - 1)

f(x) = {x}^{3}  - x+ 3 {x}^{2}  -3

f(x) = {x}^{3}  + 3 {x}^{2}  - x -3

This is the standard form because it is now in decreasing powers of x.

8 0
3 years ago
Milo cut his cake into 2 equal pieces. He ate 2pieces of cake for his birthday.
Sauron [17]

Answer:

1  or \frac{2}{2}

Step-by-step explanation:

<h2><u>We know that Milo cut his cake into 2 different pieces, so:</u></h2>

\frac{x}{2}

<h2><u>He then eats two pieces of the cake. so:</u></h2>

2  pieces  of  cake  =  x

\frac{2}{2}   = 1

8 0
3 years ago
How long does it take a kangaroo to travel 5 kilometer
vagabundo [1.1K]
1 Second is how long
8 0
3 years ago
The second hand on a clock is
VikaD [51]

Answer:

8.37 cm rounded

Step-by-step explanation:

C = 2π r

C = 2π (8)

C = 16 π

C = 50.24

1/6 ( 50.24)= 8.37

7 0
3 years ago
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