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PolarNik [594]
3 years ago
11

PLEASE HELP!!!! In the problem below, the student made a mistake. What is the students mistake in 1-2 sentences?

Mathematics
1 answer:
likoan [24]3 years ago
3 0
1. The student changed -5x to -6x -1x. You can not simplify things like that, and it is not even equal to it’s original value.

2. The student correctly had x and -1 outside of the parenthesis, and should have stopped solving there. But those numbers totally vanished.
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Eduardwww [97]

Answer:

Sorry... I don't understant...

5 0
3 years ago
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A cylinder has a height of 13 feet and a radius of 11 feet. What is its volume? Use a ~ 3.14
ArbitrLikvidat [17]

Answer:

900

Step-by-step explanation:

V=πr2h

3.14 x 11= 34.54

34.54 x 2= 69.08

69.08x 13= 898.04

898.04 rounded to nearest hundreth is 900

8 0
3 years ago
Ruth is knitting hats to sell at a local fair. The booth costs her $63 and the materials for each hat cost $10. She plans on sel
aev [14]

Answer: Ruth have to make 7 hats to break even.

Step-by-step explanation:

Break even point is a point where Cost = Revenue.

Let x be the number of hats sold.

Given: Cost of booth = $63

Each hat cost = $10

Selling price for each cost = $19

As per given,

Total cost = Cost of booth+ (Cost of each hat)(Number of hats)

= 63+10x

Total selling price = 19x

For break even,

63+10x=19x

9x=63

x=7

Hence, Ruth have to make 7 hats to break even.

7 0
3 years ago
Please tell me please
Dmitry_Shevchenko [17]

Answer: 35%

Step-by-step explanation:

20 bars

7 unshaded - not installed

7/20 = 0.35 = 35%

8 0
3 years ago
Find the perimeter. (attachment included)
Tresset [83]

Answer:

5 + 2\sqrt{11}

Step-by-step explanation:

5 + \sqrt{11} - \sqrt{5} + \sqrt{11} + \sqrt{5}

5 + 2\sqrt{11} -  \sqrt{5} + \sqrt{5}

5 + 2\sqrt{11}

6 0
4 years ago
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