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Musya8 [376]
3 years ago
14

Expand the exppresion -7(k-3)

Mathematics
2 answers:
Lana71 [14]3 years ago
8 0

Answer:

-7k+21

Step-by-step explanation:

Tanya [424]3 years ago
3 0

Answer:

-7k +21

Step-by-step explanation:

-7(k-3)

Distribute

-7*k -7*(-3)

-7k +21

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Quadrilateral ABDE is a rectangle. DE = 4 in. and BD = 6 in. If the rectangle is rotated about a line through CF, cylinder Y is
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Answer:

1 in. is the answer.

Step-by-step explanation:

Solution: A Rectangle ABDE in which DE=4 inches and BD= 6 inches

 There are two kinds of rotations

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Radius of cylinder Z=6/2= 3 inches

2. Second along the Length, Side having length 4 inches,i.e rotated about a line CF, cylinder Y is created.

Radius of cylinder Y= 4/2= 2 inches

Difference in Radii= Radius of cylinder Z  -  Radius of cylinder Y

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Diagram shown below of both the cases:

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Zoey has 99 years .She plans to make 5 bangles .Each bangle is made using 30 beads how many more beads does zoey need?​
drek231 [11]

Note: I am assuming you meant to say:

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Answer:

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Step-by-step explanation:

Total number of beads Zoey currently has = 99 beads

Beads need to make one bangel = 30 beads

so

Beads need to make 5 bangles = 30 × 5 = 150 beads

Since she has already 99 beads.

So, all we need s to subtract 99 beads from 150 beads.

Therefore,

The number of beads Zoey needs = 150 - 99

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Thus, Zoey needs 51 more beads to make 5 bangles.

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