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3 years ago

Which of the following can be written as an equation?

Mathematics

1 answer:

fenix001 [56]3 years ago

4 0

Answer:

Step-by-step explanation:

In the answer choice B, the " is the same as" can be used to denote an equal sign, and can therefore be written as an equation because an equation requires an equal sign.

Hope that helped! :)

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There are 8 shirts in your closet, 4 green and 4 blue. You randomly

Troyanec [42]

Answer:

$\frac{3}{14}$

Step-by-step explanation:

$\frac{4}{8}$ are blue shirts.

Since the second blue shirt is different, there is no replacement. $\frac{3}{7}$

$\frac{4}{8}$ x $\frac{3}{7}$ = $\frac{12}{56}$

Simplified: $\frac{12}{56}$ = $\frac{3}{14}$

4 0

3 years ago

Multiply and simplify. y^3 . y^5 . y^-2 .y<br> A. y^-4<br> B. 1/y^4<br> C. y^-5<br> D. 1/ y^3

drek231 [11]

Answer:

y^7

Step-by-step explanation:

y^3 . y^5 . y^-2 . y

= y^3 . y^5 . y^-2 . y^1

= y^( 3 + 5 - 2 + 1 )

= y^( 3 + 5 + 1 - 2 )

= y^( 9 - 2 )

= y^7

7 0

3 years ago

3 more and im done HELPPP :(

kotykmax [81]

Answer:

Step-by-step explanation:

$f(5) = \sqrt{5 - 5} + 2$

$f(5) = \sqrt{0} + 2$

$f(5) = 2$

8 0

3 years ago

A tour operator has a bus that can accommodate 20 tourists. The operator knows that tourists may not show up, so he sells 21 tic

dalvyx [7]

Answer:

The expected revenue of the tour operator is 985.

Step-by-step explanation:

There are two outcomes:

Either less than 21 tourists show up and the operator does not have to pay anything. Or 21 tourists show up and the operator has to repay 100.

Anyways, initially he gets the price of all the tickets sold. That is 21 each at 50, so $R = 21*50 = 1050$ .

Then, we need to find the probability that all of the 21 tourists show up. In this case, we have to subtract 100 from the revenue.

Each tourist has a 0.02 probability of not showing up. This means that each has a 1-0.02 = 0.98 probability of showing up. So the probability P that all 21 tourists show up is $P = (0.98)^{21} = 0.6542$ .