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Tpy6a [65]
2 years ago
12

You need 50 necklaces for a craft fair. You begin with 20 necklaces and make 4 necklaces each hour. A. Choose an expression that

represents the number of necklaces you have after h hours.
Mathematics
1 answer:
alina1380 [7]2 years ago
5 0

Answer:

The expression representing Number of the necklaces after h hours is  20+4h.

Step-by-step explanation:

Given:

Number of necklaces in the beginning = 20

Number of necklaces made per hour = 4

Number of necklaces to be made = 50

We need to write the expression that represents the number of necklaces we have after h hours.

Solution:

Let the number of hours be denoted by 'h'.

now we can say that;

Number of the necklaces after h hours can be calculated by Number of necklaces in the beginning plus Number of necklaces made per hour multiplied by number of hours.

framing in equation form we get;

Number of the necklaces after h hours = 20+4h

Hence The expression representing Number of the necklaces after h hours is  20+4h.

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Please answer this question now
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Answer:

C = (2,2)

Step-by-step explanation:

B = (10 ; 2)

M = (6 ; 2)

C = (x ; y )

|___________|___________|

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So:

dBM = dMC

√[(2-2)^2 + (6-10)^2] = √[(y-2)^2 + (x - 6)^2]

(2-2)^2 - (6-10)^2 = (y-2)^2 + (x - 6)^2

0 + (-4)^2 = (y-2)^2 + (x - 6)^2

16 = (y-2)^2 + (x - 6)^2

16 - (x - 6)^2 = (y-2)^2

Also:

2*dBM = dBC

2*√[(2-2)^2 + (6-10)^2] = √[(y-2)^2 + (x - 10)^2]

4*[(0)^2 + (-4)^2] = (y-2)^2 + (x - 10)^2

4*(16) = (y-2)^2 + (x - 10)^2

64 = (y-2)^2 + (x - 10)^2

64 = 16 - (x - 6)^2 + (x - 10)^2

48 = (x - 10)^2 - (x - 6)^2

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48 = - 20*x + 100 + 12*x - 36

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x = 2

Thus:

16 - (x - 6)^2 = (y-2)^2

16 - (2 - 6)^2 = (y-2)^2

16 - (-4)^2 = (y-2)^2

16 - 16 = (y-2)^2

0 =  (y-2)^2

0 = y - 2

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⇒ C = (2,2)

4 0
3 years ago
A cube has a volume of 2197 m^3. Its surface is to be painted. Each can of paint covers about 40 m^2. How many cans of paint are
Gelneren [198K]
<em>Volume= a³</em>
<em>a=edge</em>
<em>2197 = a³</em>
<em>=> a=13 m</em>
<em>Surface area=6a²=6*13²=6*169=1014 m²</em>
<em>\frac{1014}{40} = 25,35 ≈ 26</em>
<em>=> <u>26 cans needed</u></em>
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3 years ago
You originally draw a design for an art contest on a 3 in. x 5 in. card. The second phase of the contest requires the drawing to
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Answer:

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