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Lady_Fox [76]
3 years ago
13

Which expressions are equivalent to 4-2.7-2 ?

Mathematics
1 answer:
Sholpan [36]3 years ago
7 0
I think it’s A (4x7)-2
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In Hillsboro's wig shop, 1/2 of the wigs are blonde and 1/12 of the wigs are brunette. What fraction of the wigs are either blon
ella [17]

Answer:

7/12

Step-by-step explanation:

So, the probability of picking up a blonde wig = 1/2

The probabiliy of picking up a brunette wig = 1/12

The question asks to find th eprobability of picking up either of these types of wigs =

1/2 + 1/12

= 6/12 + 1/12 ( LCM of 12 and 1 is 12 )

= 7/12

Hope this helps

3 0
3 years ago
How do you do this and what’s the answer ?
Dmitrij [34]

Answer:

A. y=2

x+y=2.5

b.  x=2 or 5

y=2 or 5

I don't know which on equals 2 and which equals 5, but 5 and 2 are the answers

Step-by-step explanation:

a. 2x0.5=1

b. 2+5=7 and 2x5=10

7 0
3 years ago
17. Evaluate a. 6! b. 8P5 c. 12C4
Andreyy89
The factorial ! just means we multiply by every natural number less that the value so
6! =6×5×4×3×2×1= 720

for permutations we use the formula n!/(n-r)!
so we have 8!/(8-5)!=8!/3!=8×7×6×5×4

for combinations s we have n!/(n-r)!r!
so we have 12!/(12-4)!4!=12!/8!4!=12×11×10×9/4×3×2=11×10×9/2=99×5
7 0
3 years ago
What is the ratio of the sector area to the area of the
grin007 [14]

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Step-by-step explanation: l

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3 years ago
Which is a quantitative variable?
Neporo4naja [7]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
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