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sertanlavr [38]
3 years ago
6

Which of the following expressions represents the expanded version of the expression

Mathematics
1 answer:
maxonik [38]3 years ago
4 0

Answer:

4th option

Step-by-step explanation:

7x(8x² - 4y² + 3y - 5) ← multiply each term in the parenthesis by 7x

= 56x³ - 28xy² + 21xy - 35x

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I do not understand “How many bags of lettuce must be purchased for Val’s Veggies to be the cheaper option?”
vlabodo [156]
Let the number of bags to be purchased be x
Option Val : 250 + 1.50x
Option Sally : 100 + 4x

For Val to be the cheaper option:
250 + 1.5x < 100 + 4x
100 + 4x > 250 + 1.5x 
100 + 4x - 100 > 250 + 1.5x - 100
4x > 150 + 1.5x
4x - 1.5x  > 150 + 1.5x - 1.5x
2.5x > 150
x > 150 ÷ 2.5
x >  60

To make Val the cheaper option, he needs to buy more than 60 bags of lettuces.


5 0
4 years ago
Krystal purchases a total of $120. If a 4% sales tax is added on, how much will her total purchase cost?    ​
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120x.04 =4.8
Add to original 120

Final answer $124.80
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3 years ago
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3 years ago
What's the surface area of the square pyramid?? <br><br> Please someone answer fast
Eddi Din [679]

Answer:

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Step-by-step explanation:

The base/square:

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The sides:

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4 sides:

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