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2 years ago

Find the value of y...

Mathematics

1 answer:

soldier1979 [14.2K]2 years ago

5 0

Answer:

y=0

Step-by-step explanation:

Rewrite Evaluate Powers:

3 $3^{2y-1}+3^{-1}+2*3^{y}*3^{-1}=1$

Calculate:

$(3^{y})^{2}*\frac{1}{3} +2*3^{y}*\frac{1}{3}=1$

Solve using substitution:

$(3^{y})^{2}*\frac{1}{3} +\frac{2}{3} *3^{y}=1$ $t=3^{y}$

Solve the equation for t:

$t^{2}*\frac{1}{3}+\frac{2}{3}t=1$

t=-3

t=1

Substitute back to t=3^y

3^y=-3

3^y=1

y∉R

$3^{y}=1$

y=0

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Answer:

Step-by-step explanation:

Sum of first 4 numbers= 4*5= 20

This includes 3 + 4th number

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3 years ago

$765.13 is deposited at the end of each month for 3 years in an account paying 2% Interest compounded monthly. Find the final am

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Answer:

Option B.

Step-by-step explanation:

The future value formula, for an annuity, is:

$FV = \frac{P((1+r)^{n} - 1)}{r}$

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In this question:

Deposits of $765.13, so $P = 765.13$

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3 years ago

Zayed is helping his classmates get ready for their math test by making them identical packages of pencils and calculators. He h

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Answer:

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Step-by-step explanation:

We are given Zayed is helping his classmates get ready for their math test by making them identical packages of pencils and calculators.

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Hence, Zayed creates 24 packages.

Number of pencils in each package= $\frac{72}{24}=3$

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3 years ago

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2 years ago

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2 years ago

Find the value of y...​

Find the value of y...