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3 years ago

How do I prove this?

Mathematics

1 answer:

Vadim26 [7]3 years ago

6 0

Incorrect info please upload a correct photo of the problem

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Is the function x^3+7x even or odd?

Nimfa-mama [501]

Answer:

odd

Step-by-step explanation:

i looked it up

7 0

3 years ago

HELP ASAP!!!!!!!!!!

chubhunter [2.5K]

Answer:

7.5

Step-by-step explanation:

$\sqrt{0\\.3}$ = 0.5477225575

Multiply it by 5

= 2.738612788

Square it

7.5 $ft^{2}$

Hope this helped. :)

5 0

3 years ago

Last year 64 new houses were built in a neighborhood so far this year 7/8 of them have been sold how many new houses have been s

laiz [17]

Answer:

Step-by-step explanation:

for this problem you would first figure out what 1/8 of 64 is. 1/8 of 64 is 8.so we do 7*8 to get 56 so 56 of the 64 houses have been sold

6 0

2 years ago

How much should a family deposit at the end of every 6 months in order to have $4000 at the end of 3 years? The account pays 5.9

ra1l [238]

We are asked to determine the present value of an annuity that is paid at the end of each period. Therefore, we need to use the formula for present value ordinary, which is:

$PV_{ord}=C(\frac{1-(1+i)^{-kn}}{\frac{i}{k}})$

Where:

$\begin{gathered} C=\text{ payments each period} \\ i=\text{ interest rate} \\ n=\text{ number of periods} \\ k=\text{ number of times the interest is compounded} \end{gathered}$

Since the interest is compounded semi-annually this means that it is compounded 2 times a year, therefore, k = 2. Now we need to convert the interest rate into decimal form. To do that we will divide the interest rate by 100:

$\frac{5.9}{100}=0.059$

Now we substitute the values:

$PV_{ord}=4000(\frac{1-(1+0.059)^{-2(3)}}{\frac{0.059}{2}})$

Now we solve the operations, we get:

$PV_{\text{ord}}=39462.50$

Therefore, the present value must be $39462.50

8 0

1 year ago

The students in a club are selling flowerpots to raise money. Each flowerpot sells for $21. Part A Write an expression that repr

scoundrel [369]

Answer: y = 21x

Step-by-step explanation:

y in this expression represents the total amount of money, in dollars, the students raise from selling x flowerpots.

21 is the price of each flower pot.

x is the number of flower pots sold.

If for instance, they sold 30 flower pots, y(total amount in dollars) would be;

= 21x

= 21 * 30

= $630

7 0

3 years ago