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3 years ago

Which statement about 3 multiplied by 2/3 must be true?

Mathematics

1 answer:

Alla [95]3 years ago

5 0

Step-by-step explanation:

The statement is 3 multiplied by 2/3. Here, the first no of 3 and the other one is 2/3.

It can be written as follows :

$3\times \dfrac{2}{3}$

3 is present at the numerator as well as the denominator. It will cancel out.

So,

So, 3 multiplied by 2/3 equals 2.

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Sarah rolls a die twice. What is the probability that she rolls a 3 and then an even number?

vekshin1

Answer:

A) 1/12

Step-by-step explanation:

The sample space of rolling a die is { 1,2,3,4,5,6}

P (getting 3)= The number of "3"'s in the sample space over the number of items in the sample space

P (getting a 3} = 1/6

P (getting even)= The number of evens in the sample space over the number of items in the sample space

P (getting an even} = 3/6= 1/2

Since these are independent events, we multiply the probabilities

P(3, even) = 1/6 * 1/2 = 1/12

6 0

3 years ago

Read 2 more answers

GREYUIT [131]

Answer:

$175\ in^{2}$

Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

Let

z----> the scale factor

x----> volume of the larger solid

y----> volume of the smaller solid

$z^{3}=\frac{x}{y}$

we have

$x=125\ in^{3}$

$y=27\ in^{3}$

substitute

$z^{3}=\frac{125}{27}$

$z=\frac{5}{3}$

step 2

Find the surface area of the larger solid

we know that

If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared

Let

z----> the scale factor

x----> surface area of the larger solid

y----> surface area of the smaller solid

$z^{2}=\frac{x}{y}$

we have

$z=\frac{5}{3}$

$y=63\ in^{2}$

substitute

$(\frac{5}{3})^{2}=\frac{x}{63}$

$x=\frac{25}{9}*63=175\ in^{2}$

3 0

3 years ago

Need help with the question in the picture learned awhile ago and forget!

xxTIMURxx [149]

Answer:

-i

Step-by-step explanation:

i^15

Divide the exponent by 4

15/4 = 3 r 3

Take the remainder and use as the exponent

i^3

We know that i^2 = -1

i^3 = i^2 *i

i^3 = -1*i

-i

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3 years ago

Rob is saving to buy a new MP3 player. For every $16 he earns babysitting, he saves $9. On Saturday, Rob earned $96 babysitting.

Ivenika [448]

Answer:

Step-by-step explanation:

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3 years ago

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Infinite algebra1,multi step equations.-18-6k=6(1+3k)

True [87]

Oh thats easy. It's a piece of cake. Just use your calculator

4 0

3 years ago