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JulijaS [17]
2 years ago
8

The sound level of a jet plane is approximately 140 dB. The intensity of the sound of a jet plane is approximately

Mathematics
1 answer:
Leya [2.2K]2 years ago
8 0

Answer:

280 DB

Step-by-step explanation:

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Factorise fully the following expression <br> 6x-10
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6 and 10 are part of the 2 table so you would have 2(3x-5) thats the farthest we can factor it down :)
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Explain why employers often employ young females instead of young males<br>​
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2 years ago
Corinne bought 5 bags of chips and 4 jars of dipping sauce for $21.82. At the same prices, Ginger bought 4 bags of chips and 3 j
mr_godi [17]

Answer:

The price of one jar of dipping sauce is $2.98

Step-by-step explanation:

Let

x ----> the price of one bag of chip

y ----> the price of one jar of dipping sauce

we know that

<em>Corinne</em>

5x+4y=21.82 ----> equation A

<em>Ginger</em>

4x+3y=16.86 ----> equation B

Solve the system of equations by graphing

Remember that the solution is the intersection point both graphs

using a graphing tool

The solution is the point (1.98,2.98)

see the attached figure

therefore

The price of one bag of chip is $1.98

The price of one jar of dipping sauce is $2.98

7 0
2 years ago
How do I check my work for 66÷6996
Digiron [165]
You multiply the dividend and the quotient
5 0
2 years ago
Read 2 more answers
A supply company manufactures copy machines. The unit cost C (the cost in dollars to make each copy machine) depends on the numb
ArbitrLikvidat [17]

Answer:

  $9327

Step-by-step explanation:

Apparently, the cost function is supposed to be ...

  C(x) = 0.4x^2 -112x +17167

This can be rewritten to vertex form as ...

  C(x) = 0.4(x^2 -280) +17167

  C(x) = 0.4(x -140)^2 +17167 -0.4(19600)

  C(x) = 0.4(x -140)^2 +9327

The vertex of the cost function is ...

  (x, C(x)) = (140, 9327)

The minimum unit cost is $9327.

_____

<em>Comment on the question</em>

You found the number of units that result in minimum cost (140 units), but you have to evaluate C(140) to find the minimum unit cost.

8 0
2 years ago
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