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raketka [301]
3 years ago
9

PLS HELP WILL GIVE BRAINLIEST AND 99 POINTS!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
seropon [69]3 years ago
8 0

Answer:

I KNOW

Step-by-step explanation:

andrew-mc [135]3 years ago
6 0

Answer:You can put this solution on YOUR website!

The numbers are between +/- 2 sd s of the mean

With Chebyshev's inequality, at least 3/4 of the numbers would be between these two.

For the one with 3 standard deviations, it would be 8/9.

----------------------

For the second part, this is 3.5 sd s on either side

1/(3.5)^2=0.0816, The fraction is 1/(49/4) or 4/49.

----------------

The second one would be wishing 18/8 or 2.25 sd s and that fraction would be 1/(9/4)^2=1/81/16 or 16/81 or 0.1975.

Step-by-step explanation:

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As part of your retirement plan, you want to set up an annuity in which a regular payment of $35,000 is made at the end of each
Finger [1]

Answer:

Option d)$401,447.24

Step-by-step explanation:

We are given that as part of your retirement plan, you want to set up an annuity in which a regular payment of $35,000 is made at the end of each year at rate of 6% compounded annually for 20  years

So first of all we need to find the future value of annuity using the formula as shown below :

FV= p\frac{[(1+\frac{r}{n})^{(n)(t)}-1)]}{\frac{r}{n}}

Here, FV = future value of annuity

         p = $35000   (annual deposit)

         r is rate = 6% = 0.06

         n = number of compounding = 1 ( as we are compounding annually )

        t = number of years = 20

So plugging in all the values in the formula , we get

FV= 35000\frac{[(1+\frac{0.06}{1})^{(1)(20)}-1)]}{\frac{0.06}{1}}

Simplifying further , we get

FV= 35000\frac{[(1+0.06)^{20}-1)]}{0.06}

Plugging in the given values in the calculator , we get

FV = $ 1287495.69

So far we have got the Total amount for annuity , from here we need to use the concept of compound interest and find the principal amount to be deposited to get the required total amount of $ 1287495.69

The formula for compound interest when compounded annually is given by:

A=P(1+r)^t

Here A = 1287495.69  (Total amount required)

         P =   ( principal amount to be deposited to meet the required total amount )

         r = 6% = 0.06

        t = 20

So plugging in all the known values in the formula , we get

1287495.69= P(1+0.06)^{20}

simplifying further, we get

\frac{1287495.69}{(1.06)^{20}}= P

so required amount to be deposited is given by :

P = $401,447.24

Hope it was helpful !:)




6 0
3 years ago
How do i find the equation of the line?
Cerrena [4.2K]

Answer:

10x + 7y = 2

Step-by-step explanation:

Slope = (6 + 4)/(-4 - 3) = -10/7

Equation:

y + 4 = -10/7(x - 3)

7(y + 4) = - 10(x - 3)

7y + 28 = -10x + 30

10x + 7y = 30 - 28

10x + 7y = 2

6 0
4 years ago
Read 2 more answers
Plz help i relly need help with this
Viktor [21]

Answer:

B

Step-by-step explanation:

5(4)-2(1)=

20-2=

18

6 0
3 years ago
Read 2 more answers
Multiple step problem<br>-6 = 2 (w+5) ​
Romashka-Z-Leto [24]

Answer:

w = -8

Step-by-step explanation:

Distribute: -6 = 2w + 10

Remove the 10: -6 -10 = 2w +10 -10 ---> -16 = 2w

Isolate the variable: -16/2 = 2w/2

Answer: -8 = w

4 0
3 years ago
Help need the answer by 7am GMT.<br>pls
lana [24]
1*2*0.2 = 0.4

Pipe drains 0.4m3 in 30min

Volume of tank = 0.5 * (1.4 + 0.6) * 2 * 1 = 2m3

Time taken = 2/0.4 * 30 = 150min
8 0
4 years ago
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