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lina2011 [118]
3 years ago
13

You invest $720 in an account that has an annual interest rate of 6.2%, compounded semiannually. How much money will be in the a

ccount after 5 years? Round your answer to the nearest whole number and include units.
Show all work.
Mathematics
1 answer:
Daniel [21]3 years ago
3 0
The appropriate formula is
  A = P(1 +r/n)^(nt)
where P is the amount invested (720)
  r is the annual interest rate (0.062)
  n is the number of compoundings per year (2)
  t is the number of years (5)

Filling in the given numbers, you have
  A = $720·(1 + .062/2)^(2·5)
  A = $720·1.031^10
  A ≈ $977

After 5 years the account will hold $977.
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Sophia pays $19.99 membership fee for an online music store. If sophia purchases n songs for $0.99 each write the expression for
Alona [7]

Answer:

The expression for the total cost is x = 19.99 + 0.99n .

Step-by-step explanation:

Let us assume that the total cost be x.

As given

Sophia pays $19.99 membership fee for an online music store.

If sophia purchases n songs for $0.99 each .

Than the expression becomes

Total cost = Membership fee + Cost of n songs

x = 19.99 + 0.99n

Here n represented the number of songs.

4 0
3 years ago
The price of a technology stock has risen $9.65 today. Yesterday’s price was $9.58 find the percentage increase round your answe
bezimeni [28]

1% (I'm pretty sure)

Step-by-step explanation:

you would do 9.65 ÷ 9.58 to to get 1.0073 and rounding it would give you 1

3 0
3 years ago
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What is the volume of the composite figure? Round your answer to the nearest hundredth. Use 3.14 for π.
Reil [10]

Answer:

<em><u>263.76</u></em><em><u> </u></em><em><u>in</u></em><em><u>^</u></em><em><u>3</u></em>

VOLUME OF FIGURE=VOL.OF CONE+VOL.OF CYLINDER +VOL.OF HEMISPHERE

=(1/3×3.14×3×3×4)+(3.14×3×3×6)+(2/3×3.14×3×3×3)

=37.68+169.56+56.52

=263.76in^3

7 0
3 years ago
PLEASE help it would mean the world to me it would help so much please and thank you
castortr0y [4]
Area = 18 = 1/2 x 6 x (h+1)
h=5
3 0
2 years ago
Write the standard form of the equation that is parallel to y = -6x + 5 and goes through point (4, 4).
steposvetlana [31]

6x + y = 28.  The standard form of the equation that is parallel to y = -6x + 5 and goes through point (4, 4) is 6x + y = 28.

The equation is written in the slope-intercept form y = mx +b. So:

y = -6x + 5

The slope m = -6

Since the slopes of parallel lines are the same, we are looking for a slope line m = -6 and goes through point (4, 4).

With the slope-intercept form:

y = mx + b

Introducing the slope m = -6:

y = -6x + b

Introducing the point (4, 4):

4 = -6(4) + b

b = 4 + 6(4)

b= 24 + 4

b = 28

Then

y = -6x + 28

write the equation in standard form ax + by = c:

y = -6x + 28

6x + y = 28

8 0
3 years ago
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