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1 year ago

100 pts/ x3+y3+z3=k

Mathematics

1 answer:

lesya692 [45]1 year ago

3 0

Answer:

.............................

Step-by-step explanation:

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Can someone help me with these 2 problems plz

Taya2010 [7]

For the first one I believe that the numbers are both odd and I am not sure about the second one sorry

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2 years ago

Read 2 more answers

I wish to have $10,000 at the end of 8 yers in a bank offering a simple interest rate of 7.5% per year. How much should I deposi

kolezko [41]

Answer:

You have to invest $6,250

Step-by-step explanation:

very simple applying the simple interest formula which is

$A = P (1 + rt)$

Given data

A, final amount = $10,000

P, initial principal balance= ?

r, annual interest rate = 7.5%

t, time (in years)= 8 years

we can substitute our given data to find the principal needed.

$10000= P(1+0.075*8)\\\10000= P(1.6)\\\$

Divide both sides by 1.6 we have

$P= \frac{10000}{1.6} \\\P= 6250$

P= $6,250

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2 years ago

the current temperature in small town - 20 degrees Fahrenheit this is 6 degrees less than twice the temperature that was six hou

Vlad [161]

For problems like this we can use algebra to help us, the farenheight 6 hours ago was:
(2xt)-6=-20
We have to balance the sides out, first we minus 6
2xt=-26
Now we can divide by 2
t=-13

We now know the temperature 6 hours ago was -13

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2 years ago

The local hamburger restaurant is famous for how quickly they can assemble a burger. The restaurant advertises that its constant

melisa1 [442]

The gievn equation is ,

$t=11.3h\ldots(1)$

where t is the time in seconds and h is the no.of hamburgers assembled.

put h = 2 in equation (1).

$\begin{gathered} t=11.3\text{ (2)} \\ t=22.6 \end{gathered}$

blank A assembles 2 hamburges in 22.6 seconds.

put h = 3 in equation (1)

$\begin{gathered} t=11.3(3) \\ t=33.9 \end{gathered}$

blank B assembles 3 hamburgers in 33.9 seconds.

put h = 5 in equation (1)

$\begin{gathered} t=11.3(5) \\ t=56.5 \end{gathered}$

blank C assembles 5 hamburgers in 56.5 seconds.

put h = 8 in equation (1)

$\begin{gathered} t=11.3(8) \\ t=90.4 \end{gathered}$

blank D assembles 8 hamburgers in 90.4 seconds.

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5 months ago

SinA=(7/25), determine CosA and TanA exactly

bixtya [17]

Answer:

Cos A = 24/25 & Tan A = 7/24

Step-by-step explanation:

See the attached figure.

Construct a right triangle and sign one angle as A

So, Sin A = opposite/hypotenuse = 7/25

∴hypotenuse = 25 and opposite = 7

∴ adjacent = √(25² - 7² ) = √576 = 24

∴ Cos A = adjacent/hypotenuse = 24/25

And

Tan A = opposite/adjacent = 7/24

5 0

2 years ago