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Tresset [83]
3 years ago
13

Determine if the number 5.1x10^-8 is written in scientific notation

Mathematics
1 answer:
Alecsey [184]3 years ago
6 0

yes ,it is in scientific  notation.

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How much money should be deposited today in an account that earns 7% compounded semiannually so that it will accumulate to $12,0
Korvikt [17]

Given rate is = 7% or 0.07

Total amount needed = $12000

Time = 4 years

Here, the  deposit is  compounded semiannually, means twice per year and this gives 8 annual compounding periods in 4 years.

The equation becomes:

P= \frac{12000}{(1+\frac{0.07}{2})^{2.4}}

P = \frac{12000}{1.035^{8}}

Solving it, we get P = $ 9112.93

Hence $9112.93 should be deposited today.



3 0
3 years ago
I have over 20 pencils in my desk
AleksAgata [21]

Answer:

that means you probably have 40 or 30

Step-by-step explanation:

6 0
3 years ago
If 14y - 4 = 24y + 26 , then 12y =
harkovskaia [24]
Solutions 

To solve the equation we have to isolate 12y

14y - 4 = 24y + 26

-4 - 26 = 24y - 14y

-30 = 10y

10y = -30

y =- -30/10

y = -3

12y =12/-3

12y = -36

Therefore, 12y = -36
4 0
3 years ago
Read 2 more answers
Two paths each of width 4m run across the middle of a rectangular field 24m long and 16m wide. Calculate the area of the paths.​
djverab [1.8K]

Answer:

272cm2

Step-by-step explanation:

4m×2=8

width ×long=area

8m×24m=272cm2

7 0
3 years ago
A circular city park has a sidewalk directly through the middle that is 111 - feet long. If each bag of fertilizer covers 50 squ
scZoUnD [109]

Answer:

Step-by-step explanation:

The circular city park has a sidewalk directly through the middle that is 111 - feet long. This means that the diameter of the park is 111 feet.

The formula for determining the the area of a circle is expressed as

Area = πr²

Where

r represents the radius of the circular floor.

π is a constant whose value is 3.14

From the information given,

Diameter = 111 feet

Radius = diameter/2 = 111/2 = 55.5 feet.

Area of park = 3.14 × 55.5² = 9671.985 feet²

If each bag of fertilizer covers 50 square feet, then the number of bags needed is

9671.985/50 = 193.44 bags

3 0
3 years ago
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