How to solve 2x/5y×2x/x=7x/12

Mathematics

1 answer:

BigorU [14]3 years ago

4 0

Answer:

Step-by-step explanation:

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If the temperature at which a certain compound melts is a random variable with mean value 120 ???? ???? and standard deviation 2

bogdanovich [222]

Answer:
Temperature is measured in units of temperature.
In SI units, it is K (degrees Kelvin).
In CGS units, it is °C (degrees Celsius)
In English units, it is °F (degrees Fahrenheit)

Therefore the mean and standard deviation will be measured in the selected units for temperature.

6 0

3 years ago

Find the product of monomials 3a^4b^-2 and 2a^7b^-1

Inga [223]

(3a^4 * b^-2) * (2a^7 * b^-1)
= 6*a^(4+7)*b^(-2-1)
= 6*a^11*b^-3

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3 years ago

A person invests $1,150 in an account that earns 5% annual interest compounded continuously. Find when the value of the investme

AfilCa [17]

Answer:

11.1 years

Step-by-step explanation:

The formula for interest compounding continuously is:

$A(t)=Pe^{rt}$

Where A(t) is the amount after the compounding, P is the initial deposit, r is the interest rate in decimal form, and t is the time in years. Filling in what we have looks like this:

$2000=1150e^{{.05t}$

We will simplify this first a bit by dividing 2000 by 1150 to get

$1.739130435=e^{.05t}$

To get that t out the exponential position it is currently in we have to take the natural log of both sides. Since a natural log has a base of e, taking the natual log of e cancels both of them out. They "undo" each other, for lack of a better way to explain it. That leaves us with

ln(1.739130435)=.05t

Taking the natural log of that decimal on our calculator gives us

.5533852383=.05t

Now divide both sides by .05 to get t = 11.06770477 which rounds to 11.1 years.

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3 years ago

√70 is ________________________ because _________________________ . Choose the best response to fill in the blanks above

snow_tiger [21]

Answer:

$\sqrt{70}$ is Rational because it's a non-perfect square