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NNADVOKAT [17]
3 years ago
8

The equation of the trend line on the scatterplot below is y= 1.3x - 0.52 Using the trend line equation, what is the predicted a

pproximate value of y when x = 3.5?
Mathematics
2 answers:
Luba_88 [7]3 years ago
7 0

Answer:

C

Step-by-step explanation:

Just took the Test

Airida [17]3 years ago
6 0
Replace x in the equation with 3.5 and do the arithmetic.
  y = 1.3*3.5 -0.52
  y = 4.55 -0.52
  y = 4.03

The predicted approximate value of y is 4.03.
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Roberto and Maria Santanos spend approximately $11.50 per week to wash and dry their family's clothes at a local coin laundry. A
Elena L [17]

Answer:

68 weeks

Step-by-step explanation:

1 week costs $11.50.

so, how many such weekly each cycles fit into the price of new machines ?

if they wait to long (to many weeks) they spend in total more money than buying a new machine.

but if they stay still below that max. number of weeks, they have at least the illusion that they are cheaper of with the weekly laundromat investment (but they forget, sooner or later they will need the new machines).

so the break even point is simply

782 / 11.5 = 68 weeks.

after 68 weeks it has cost them exactly the same amount of money, as if they had bought new machines right away at the beginning.

3 0
3 years ago
The La Jolla tide pools are 67.5 miles from the SLMS. A map shows that 2 inches = 15 miles. What distance is SLMS from the tide
Gwar [14]

Answer:

25

Step-by-step explanation:

because you have to divide by 15's

5 0
3 years ago
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If ΔABC ≅ ΔEDF where the coordinates of A(0, 2), B(2, 4), and C(2, −1), what is the measure of DF?
allsm [11]

Answer:

C. 5

Step-by-step explanation:

Since Triangle ABC is congruent to EDF it mean that the sides are the same so the length of BC is congruent to the length of DF:

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d = √0 + 25

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Step-by-step explanation:

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