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pentagon [3]
3 years ago
13

The total cost for 8 bracelets,including shipping was $54. the shipping charge was $6.

Mathematics
2 answers:
Ivanshal [37]3 years ago
8 0
For 8 bracelets, total cost = Actual cost + shipping = $54
shipping = $6 (constant)
Actual cost = $54 - $6 = $48 (for 8 bracelet)
Cost of one bracelet = 48/8 = $6
Let y be total cost of bracelet, and x be total number of bracelet,
so, the equation of the cost of each bracelet would be
y = 6x + 6. 


nevsk [136]3 years ago
4 0
Im pretty sure it would be 54÷ b- 6 if your looking for only the cost of the braclets nothing else.
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Which value must be added to the expression x2 + 12x to make it a perfect-square trinomial?
denis23 [38]

36 is must be added to the expression x² + 12x to make it

perfect-square trinomial

Step-by-step explanation:

The perfect-square trinomial x² + 2ax + a² = (x + a)², then

1. The first term in the trinomial is square the 1st term in the bracket

2. The middle term in the trinomial is the product of 1st , 2nd

    terms of the bracket and 2

3. The 3rd term in the trinomial is square the 2nd term in the bracket

∵ The expression is x² + 12x

∵ We must add the 3rd term which make it perfect-square trinomial

- Divide 12x by 2 to find the product of the 1st term and 2nd term

  in the bracket

∵ 12x ÷ 2 = 6x

∴ The 1st term is x and the 2nd term is 6 of the bracket

∵ The 3rd term in the trinomial is square the 2nd term in the bracket

∴ The 3rd term in the trinomial is 6² = 36

∴ x² + 12x + 36 = (x + 6)²

36 is must be added to the expression x² + 12x to make it

perfect-square trinomial

Learn more:

You can learn more about perfect-square trinomial in brainly.com/question/7932185

#LearnwithBrainly

4 0
2 years ago
You place the spring vertically with one end on the floor. You then drop a book of mass 1.50 kg onto it from a height of 0.900 m
Alex777 [14]

Answer:

The value of the maximum distance the spring will be compressed  

x = 0.143 m= 14.3 cm

Step-by-step explanation:

Given data

Mass m = 1.5 kg

h = 0.9 m

k = 1500\frac{N}{m}

Since the book is released from a height h = 0.9 m above the top of the spring. so the total distance

y = h + x

Now in that case for the spring

mg y= \frac{1}{2} k x^{2}

mg(h +x) = \frac{1}{2} k x^{2}

By rearranging the above equation we get

k x^{2}  - 2mgx - 2mg h = 0

Put all the values in above equation we get

1500x^{2}  - 29.43 x - 26.48 = 0

By solving the above equation we get

x = 0.143 m= 14.3 cm

This is the value of the maximum distance the spring will be compressed.

8 0
2 years ago
the sum of three consecutive even numbers is 78. what is the first number ? a (24) b (26) c (28) d (30)​
bagirrra123 [75]

Answer:

24

Step-by-step explanation:

24 + 26 + 28 = 78

3 0
3 years ago
PLZ HELP
Eva8 [605]

Answer:

(x+1)^2

Step-by-step explanation:

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g ( f(x)) means that you are going to replace x in g(x) for f(x)

g(x) = x^2

f(x) = x+1

So you have to solve g(x) when x = x+1

g (x+1) = (x+1)^2

8 0
3 years ago
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