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3 years ago

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Mathematics

1 answer:

Karolina [17]3 years ago

3 0

explain ggvfkdjdigzufsitz8tItst9zotzotxiys8tx

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8^3*8^-5*8^y=1/8^2, what is the value of y in the product of powers below?

Aleks04 [339]

For this case we have that by definition of multiplication of powers of the same base, the same base is placed and the exponents are added:

$a ^ n * a ^ m = a ^ {n + m}$

So, we can rewrite the given expression as:

$8 ^ {3-5 + y} = \frac {1} {8 ^ 2}\\8 ^ {- 2 + y} = \frac {1} {8 ^ 2}$

So, if $y = 0$ :

$8 ^ {- 2} = \frac {1} {8 ^ 2}\\\frac {1} {8 ^ 2} = \frac {1} {8 ^ 2}$

Equality is met!

Answer:

$y = 0$

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3 years ago

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22 divided by 179 equals ?

nadya68 [22]

Answer:

Step-by-step explanation:

0.12290502793

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3 years ago

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a store is having a sale in which all items are reduced 20%. Including tax, Jennifer pail $21 for a pair of shorts. If the sales

andrey2020 [161]

Answer:

$25.

Step-by-step explanation:

Let x be the original price of shorts.

We have been given that a store is having a sale in which all items are reduced 20%. The sales tax is 5%.

The price of shorts after 20% off will be:

$\text{ Price of shorts after discount}=x-\frac{20}{100}x$

$\text{ Price of shorts after discount}=x-0.2x$

$\text{ Price of shorts after discount}=0.8x$

Since tax is added after the discount, so the price of shorts after including the tax will be:

$0.8x+(\frac{5}{100}\times 0.8x)$

We are told that including tax, Jennifer paid $21 for a pair of shorts. So we can set an equation as:

$0.8x+(\frac{5}{100}\times 0.8x)=21$

Now let us solve for x.

$0.8x+(0.05\times 0.8x)=21$

$0.8x+0.04x=21$

$0.84x=21$

$\frac{0.84x}{0.84}=\frac{21}{0.84}$

$x=\frac{21}{0.84}$

$x=25$

Therefore, the original price of shorts was $25.

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3 years ago

A tennis ball has a mass of 0.06 kilograms. What place value is the 6 in this<br> number?

In-s [12.5K]

Answer:

It is the hundredths.

Step-by-step explanation:

The second number after the decimal is the hundredths place.

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3 years ago

For cylinders with radius 2 units, let h represent the height of the cylinder, in units, and the V represent the volume of the c

ElenaW [278]

Answer:

H V

1 4π

2 8π

3 12π

There is a linear relationship between height and volume in this example. With a constant radius value for this table, the volume is 4 times the size of the height of the cylinder.

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