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lisabon 2012 [21]
3 years ago
9

BRAINLIEST, THANKS AND 5 STARS IF ANSWERED CORRECTLY.

Mathematics
2 answers:
statuscvo [17]3 years ago
6 0

B has two pre-images of -7 so it is not a function

iVinArrow [24]3 years ago
4 0

B. (-7, 3), (1, 2), (5, 3), (-7, 2)

Since  

x = − 7  produces  y = 3  and  y = 2

So the relation is not a function.

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Sara works for a hair salon and receives tips from her customers. The weekly tips
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Answer:

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median: 100

range: 140

mode: 100

Step-by-step explanation:

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2 years ago
What is the best estimate of 42% of 756?<br><br> a)320<br><br> b)240<br><br> c)400<br><br> d)400
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4 0
3 years ago
Write the equation for:
xenn [34]

Answer:

\frac{1}{2} x +x = 2 (x-4)

Step-by-step explanation:

Suppose number is x

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\frac{1}{2} x +x = 2 (x-4)

Simplifying it further

\frac{3}{2} x = 2x-8

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7 0
2 years ago
Sue travels by bus or walks when she visits the shops. The probability that she catches the bus to the shops is 0.4. The probabi
Ksenya-84 [330]

Answer:

Proved,

P(A∪B)=0.72

Step-by-step explanation:

Sue travels by bus or walks when she visits the shops.

Probability( catch the bus to the shop ), P(A) = 0.4

Probability( catch the bus from the shop ), P(B) = 0.7

Both A and B are independent events.

Therefore,

P(A∩B) = 0.4×0.7

           = 0.28

Probability Sue walks one way = 1 - P(A∩B)

                                                   = 1 - 0.28

                                                   = 0.72

Hence, the probability that Sue walks at one way is 0.72

3 0
3 years ago
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