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murzikaleks [220]
3 years ago
6

Please help on 7 to be marked the brainliest

Mathematics
1 answer:
sweet [91]3 years ago
7 0

Answer:

  D)  3.57%

Step-by-step explanation:

The percentage change is given by ...

  percent change = ((new value) -(old value))/(old value) × 100%

  = (3.19 -3.08)/3.08 × 100% = 0.11/3.08 × 100% = (11/3.08)% ≈ 3.57%

__

When dealing with percentages, you need to be clear about what number represents 100%, the reference value against which errors or changes are measured. Here, it is the π of the mug, 3.08.

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Why is 6√3 irrational or rational?
Oduvanchick [21]

Answer:

irrational.

Step-by-step explanation:

√3 is irrational.

product of rational and irrational number is always irrational.

6×√3=6√3

6 0
2 years ago
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Which is the equation of a hyperbola with directrices at x = ±3 and foci at (4, 0) and (−4, 0)?
photoshop1234 [79]

Answer:A. x squared over 16 minus y squared over 4 ...

Step-by-step explanation:

4 0
2 years ago
In a test Freya scores 25% more marks than Eva. Eva scores 50% more marks than Dominic. In total the three children score 140 ma
katen-ka-za [31]

Answer:

40

Step-by-step explanation:

Dominic: 32/80

Eva: 48/80

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2 years ago
​Which values are solutions to the inequality? ​ ​5r≤6r−8​ ​ Select each correct answer. r = 7 r = 8 r = 9 r = 10
Ratling [72]

Answer:

r = 8,9,10

Step-by-step explanation:

The given inequality is :

​5r≤6r−8​  ...(1)

We need to find the value of r.

Subtracting 5r to both sides of the inequality .

​5r-5r≤6r-5r−8

0≤r−8

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Hence, the values of r are 8,9,10.

8 0
2 years ago
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A stack of books is 5 feet 1 inch high. How high is it in inches?
zhannawk [14.2K]

Answer:

61 Inches

Step-by-step explanation:

<em>A foot is 12 inches. </em>

1. Multiply 12 by 5.

12*5=60

2. Add the extra inch.

60+1=61

<em>The stack of books is 61 inches high.</em>

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