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3 years ago

If anyone could help I would be so happy!

Mathematics

1 answer:

dedylja [7]3 years ago

6 0

Answer: well i cant help... so dont be happy! :)

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Find (2.2 x 107)(5 x 108) (2.5 x 103)(8.8 x 105) expressed in scientific notation.

jarptica [38.1K]

Answer:

Scientific notation of the multiplication is $2.42\times 10^{25}$

Step-by-step explanation:

$(2.2\times 10^{7})(5\times 10^{8})(2.5\times 10^{3})(8.8\times 10^{5} )$

= $(2.2\times 5\times 2.5\times 8.8)10^{(7+8+3+5)}$

[Since $10^{a}\times 10^{b}=10^{(a+b)}$ ]

= $242\times 10^{23}$

= $2.42\times 10^{25}$

Therefore, the scientific notation of the multiplication is $2.42\times 10^{25}$

5 0

3 years ago

Read 2 more answers

Eight committee members are meeting in a room that has twelve chairs. In how many ways can they sit in the chairs

amm1812

Answer:

<h2>495 different ways</h2>

Step-by-step explanation:

We will use the combination rule to solve this questions since it bothers selection. Combination has to do with selection.

If r objects are to be selected from n pool of objects, this can be done in nCr number of ways.

nCr = n!/(n-r)!r!

If there are Eight committee members meeting in a room that has twelve chairs, the number of ways they can sit in the chair can be done in 12C8 number of ways.

12C8 = 12!/(12-8)!8!

12C8 = 12!/4!8!

12C8 = 12*11*10*9*8!/4*3*2*8!

12C8 = 12*11*10*9/4*3*2

12C8 = 11*10*9/2

12C8 = 11*5*9

12C8 = 495

<em>Hence the committee can sit in the chairs in 495 different ways</em>

7 0

4 years ago

How much money should be deposited today in an account that earns 6% compounded monthly so that it will accumulate to $1000000 (

aleksandr82 [10.1K]

Answer:

The principal investment required to get a total amount of $ 1,000,000.00 from compound interest at a rate of 6% per year compounded 12 times per year over 45 years is $ 67,659.17.

Step-by-step explanation:

Given

Accrued Amount A = $1000000

Interest rate r = 6% = 0.06

Time period t = 45 years

Compounded monthly n = 12

To determine:

Principle amount P = ?

Using the formula

$A\:=\:P\left(1\:+\:\frac{r}{n}\right)^{nt}$

$P\:=\frac{A}{\left(1\:+\:\frac{r}{n}\right)^{nt}}$

substituting A = 1000000, r = 0.06, t = 45, and n = 12

$P\:=\frac{1000000}{\left(1\:+\:\frac{0.06}{12}\right)^{12\cdot 45}}\:$

$=\frac{1000000}{1.005^{540}}$

$P = 67659.17$ $

Therefore, the principal investment required to get a total amount of $ 1,000,000.00 from compound interest at a rate of 6% per year compounded 12 times per year over 45 years is $ 67,659.17.

7 0

3 years ago

Mary wants to spend no more than $120 for her boat rental. There is a flat fee of $13, and it costs $20 each hour. How many hour

serious [3.7K]

Answer:

5 hours

Step-by-step explanation:

20x+13=120

20 times 5 +13 = 120

113 = 120

she will be left with 7 dollars.

x = amount of hours she can rent the boat.

4 0

3 years ago

Pls help me!!! And thank you I don’t understand

VikaD [51]

Answer:

the answer is y=1x+(-1) or just 1x-1

Step-by-step explanation:

8 0

3 years ago