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masya89 [10]
2 years ago
11

Eric practiced piano and guitar for a total of 8 hours this week. he practiced the piano for 1/4 or that time. how many hours di

d Eric practiced the piano this week
Mathematics
2 answers:
AlexFokin [52]2 years ago
5 0
2 because if 1/2 of 8 is 4 and 1/4 of 8 is = to 1/2 of 4, then 1/4 of 8 must be 2.
nika2105 [10]2 years ago
3 0
2 hours because if you count by 2's: 2, 4, 6, 8, you can see that a 1/4 of 8 is 2.
you can also just divide 8 by 2.
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Calculate the surface area of the object below
Yakvenalex [24]

Answer:

<h2>351. 86 yd² </h2>

Step-by-step explanation:

As = 2πrh + 2πr²

where r = 4,  h = 10

plugin values into the equation:

As = 2π (4) 10 + 2 π (4)²

As = 251.33 + 100.53

As = 351. 86 yd²

8 0
3 years ago
What is the explicit rule for the sequence? −3, 0,3,6,9,... Enter your answer in the box.
PtichkaEL [24]

Answer:

  • aₙ = 3n - 6

Step-by-step explanation:

<u>Given sequence:</u>

  • −3, 0,3,6,9,...

<u>This is AP with:</u>

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  • Common difference d = 3

<u>The rule for the nth term of the sequence is:</u>

  • aₙ = a₁ + (n - 1)d

<u>Substitute values:</u>

  • aₙ = -3 + (n - 1)(3) =
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3 0
2 years ago
Write as a single power of 9<br> 9^6 × 9^3 ÷ 9^4
bazaltina [42]

Answer:

9^5is the answer.

Step-by-step explanation:

(i)9^6×9^3=9^9 when we multiply we will add the power.

(ii) 9^9÷9^4= 9^5 when we divide we will subtract the power.

3 0
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Read 2 more answers
Draw a coordinate plane.
natulia [17]

The coordinate of points K, L and M is the location of the points on a coordinate plane

<h3>How to determine the missing coordinates?</h3>

The given parameters are:

K = (10, )

L = ( ,10)

M = (30, )

The question has missing parameters.

So, I will assume that the line is a perfectly horizontal line.

This means that the y-coordinates of points K, L and M are equal.

The y-coordinate of point L is 10.

So, we have:

K = (10, 10)

L = ( ,10)

M = (30, 10)

Assume that point L is halfway points K and M, then we have:

K = (10, 10)

L = (20, 10)

M = (30, 10)

See attachment for the diagram of the coordinate plane showing the line

Read more about coordinate planes at:

brainly.com/question/7243416

#SPJ1

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