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Genrish500 [490]

4 years ago

11

An expression is shown

1 answer:

PSYCHO15rus [73]4 years ago

5 0

Answer:

Step-by-step explanation:

Adding the expressions in the numerator, we get:

6·10^(-5).

Then the given fraction appears like:

6·10^(-5)

-------------

3·10^7

First, we reduce 6/3, obtaining 2:

10^(-5)

2 -------------

10^(7)

Since the bases are the same, we can rewrite these exponentials with that base (10) and single exponent 12, which is the sum of 5 and 7 and is in the denominator:

2

---------

10^12

This matches the second possible answer choice.

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What's the radius of a circle with an area of 64 square feet?

Nady [450]

Area = $\pi r ^{2}$
64 = $\pi r ^{2}$
$\frac{64}{ \pi } =r^2$
$r= \frac{ \sqrt{64} }{ \sqrt{ \pi } } = \frac{8}{ \sqrt{ \pi } }$

If you want the denominator rationalized, the answer is $\frac{8 \sqrt{ \pi } }{ \pi }$

6 0

4 years ago

Aidan is running for student body president. In today's election, he received 462 votes out of a total of 825 votes cast. What p

Temka [501]

Answer:

Aidan got <u>56%</u> of votes.

Step-by-step explanation:

Given:

Aidan is running for student body president. In today's election, he received 462 votes out of a total of 825 votes cast.

Now, to find the percent of votes did Aidan get.

<em>Total votes cast = 825 votes.</em>

<em>Votes he received = 462 votes.</em>

Now, to get the percent of votes Aidan get:

$\frac{Votes\ he\ received}{Total\ votes\ cast} \times 100$

$=\frac{462}{825} \times 100$

$=0.56\times 100$

$=56\%.$

Therefore, Aidan got 56% of votes.

5 0

4 years ago

Read 2 more answers

Solve the system of equations. Show your work.<br> y = x^2 -3x +4 <br> x + y = 4

sesenic [268]

Answer:

x + y = 2 , y = x 2 − 4 x + 4

Replace all occurrences of

y

with x 2 − 4 x + 4

in each equation.

x 2 − 3 x + 4 = 2 y = x 2 − 4 x + 4

Solve for

x

in the first equation.

x = 2 , 1 y = x 2 − 4 x+ 4

Replace all occurrences of

x with 2

in each equation.

y=0 x = 2

Replace all occurrences of x

with 1

in each equation.

y = 1 x = 1

The solution to the system is the complete set of ordered pairs that are valid solutions.

( 2 , 0 ) ( 1 , 1 )

The result can be shown in multiple forms.

Point Form:

( 2 , 0 ) , ( 1 , 1 )

Equation Form:

x=2 , y = 0 x = 1 , y = 1

Step-by-step explanation:

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zmey [24]

Answer:

?

Step-by-step explanation:

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3 years ago

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Kryger [21]

You got it correct

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