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SIZIF [17.4K]
3 years ago
7

Let a and b be real numbers, where a≠b≠0 Which of the following functions could represent the graph on the right?

Mathematics
1 answer:
Soloha48 [4]3 years ago
3 0

Answer:

Answer is A

Step-by-step explanation:

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3 Parts with a picture. Thanks!
tatuchka [14]

We have $8.50 an hour gross minus $2.15 an hour tax and bennys.  Then $3.75 daily expense.  In one week our net take-away y after x hours is

y = x(8.50 - 2.15) - 5(3.75)

That's the answer, or we can simplify it to

Answer: y = 6.35 x - 18.75

Answer: The slope, 6.35, is the net dollars per hour <em>before weekly expenses.</em>

Answer: The y intercept, -18.75, is the weekly expense, negative because it's an expense.

To make $120 in a week, we solve for x where y=120

120 = 6.35x - 18.75

138.75 = 6.35 x

x = 138.75 / 6.35 = 21.8503937007874

That wasn't the nice round number I was expecting/hoping for.  I don't see a mistake so let's go with

Answer: 21.85 hours to make $120

7 0
3 years ago
Consider to circular swimming pools.Pool A has a radius of 12 feet and Pool B has a diameter of 7.5 meters which pool has a grea
mamaluj [8]

C = Pi * d  where C = circumference, d = diameter, r = radius

C = 2*pi *r

we need to watch the units since they are different

Pool A

C = 2 * pi * r

C = 2 * pi * 12  = 24 * pi  in feet


Pool B

C = pi * d

change meters to feet

7.5 m * 3.28 ft/ 1 m  = 24.6 ft

C = pi * 24.6  = 24.6* pi  in ft


Pool B had a greater circumference

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6 0
3 years ago
Jose bought 1.5 pounds of apples for $3.60.<br><br> How much would 3/4 of a pound of apples cost?
Vladimir [108]

Answer:

$1.80 is the cost for 3/4 of a pound of apples. If you divide 1.5 over 2, it would be 3/4, which means you will divide the price too, 3.60/2 = $1.80

Step-by-step explanation:

7 0
3 years ago
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To decrease an amount by 7%, what single multiplier should you use?
notka56 [123]
To decrease an amount by 7%  what single multiplier would you use.  You  want 7% less than 100%, so the answer is (100%-7%)=93% =0.93. Hope I helped! 
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3 years ago
At a local restaurant, the amount of time that customers have to wait for their food is normally distributed with a mean of 48 m
MissTica
Both of those times are in two standard deviations, so the percent would be 95%.
8 0
3 years ago
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