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2 years ago

Ryan practiced piano for 3/10 of an hour and soccer for 1/2 an hour. In simplest form, how long did he practice altogether?.

Mathematics

1 answer:

Elina [12.6K]2 years ago

4 0

Answer:

4/5 of an hour

Step-by-step explanation:

1/2 = 5/10 so 5/10 + 3/10 = 8/10. Simplify by 2 and you get 4/5.

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What is the quotient of -8(^6)/4x(^-3)

Anna [14]

For this case we must find the quotient of the following expression:

$\frac {-8x ^ 6} {4x ^ {- 3}} =$

By definition of power properties we have:

$a ^ {- 1} = \frac {1} {a ^ 1} = \frac {1} {a}$

Rewriting the expression we have:

$\frac{-8}{4}*x^6*x^3$

By definition of multiplication of powers of the same base we have to put the same base and add the exponents:

$-2x^{6+3}$

Answer:

$-2x ^ 9$

8 0

4 years ago

Simplify expression x8y-26/x14y-5 × x-39y-21

koban [17]

The simplified form of the expression is $x^{-45} y^{-42}$

<h3>Simplifying an expression</h3>

From the question, we are to simplify the given expression

The given expression is

$\frac{x^{8}y^{-26} }{x^{14}y^{-5} } \times x^{-39} y^{-21}$

The expression can be simplified as shown below

$\frac{x^{8}y^{-26} }{x^{14}y^{-5} } \times x^{-39} y^{-21}$

$\frac{x^{8} \times x^{-39} \times y^{-26} \times y^{-21} }{x^{14} \times y^{-5} }$

$\frac{x^{8+-39} \times y^{-26+-21} }{x^{14} \times y^{-5} }$

$\frac{x^{8-39} \times y^{-26-21} }{x^{14} \times y^{-5} }$

$\frac{x^{-31} \times y^{-47} }{x^{14} \times y^{-5} }$

Then,

$\frac{x^{-31} }{x^{14} } \times \frac{ y^{-47} }{ y^{-5} }$

$x^{-31-14} \times y^{-47--5}$

$x^{-31-14} \times y^{-47+5}$

$x^{-45} \times y^{-42}$

$x^{-45} y^{-42}$

Hence, the simplified form of the expression is $x^{-45} y^{-42}$

Learn more on Simplifying an expression here: brainly.com/question/2320607

#SPJ1

3 0

2 years ago

What is negative times x plus 7

ValentinkaMS [17]

-.x+7
-x+7=0
-x=-7
x=7...

Not too sure because of the way you wrote the question but this is the interpretation i gave it.

3 0

3 years ago

Read 2 more answers

Find the missing terms in each arithmetic sequence <br> 1,__,__,-17<br> 2,__,__,20

Galina-37 [17]

Answer:

-5,-11

8,14

Step-by-step explanation:

Let 's say r the commun difference

1,1+r,1+2r,1+3r=-17

1+3r=-17

3r=-18

r=-6

Sequence is 1,-5,-11,-17

2,2+r,2+2r,2+3r=20

2+3r=20

3r=18

r=6

Sequence is 2,8,14,20

4 0

3 years ago

Financial algebra: Karen wants to make a deposit of $500 each week into an account that earns %5 interest compounded weekly(52 w

vagabundo [1.1K]

Te get this answer u must do 9282938+(-847372837)=(-63827884) is ur answer I took the test

3 0

3 years ago