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Alex_Xolod [135]
3 years ago
11

Write an equation of the line that passes through the points (4,7) and is parallel to and perpendicular to the line y=1/2x-1 ans

wer
Mathematics
1 answer:
emmasim [6.3K]3 years ago
6 0
M = 0.5
y – 7 = 0.5 ( x – 4 )
y = 0.5x + 5
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Which could be the dimensions of a rectangular prism whose surface area is less than 160 square feet? Select two options.
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ou invested 7000 between two accounts paying 4% and 9% annual​ interest, respectively. If the total interest earned for the year
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9514 1404 393

Answer:

  • $3000 at 9%
  • $4000 at 4%

Step-by-step explanation:

Let x represent the amount invested at 9%. Then 7000-x was invested at 4% and the interest earned was ...

  9%·x +4%(7000-x) = 430

  5%·x +280 = 430 . . . . . . . . . simplify

  0.05x = 150 . . . . . . . . . . . subtract 280

  x = 3000 . . . . . . . . . . divide by 0.05

$3000 was invested at 9%; $4000 was invested at 4%.

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3 years ago
A common flea can jump a distance of 33 cm. Suppose a flea makes five jumps of this length in the northwest direction. If the fl
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The proportions of blood phenotypes, A, B, AB, and O, in the population of all Caucasians in the United States are approximately
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Answer:

a. S = {A,B,AB,O}

b. P(A) = 0.41, P(B) = 0.1, P(AB) = 0.04, P(O) = 0.45

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Step-by-step explanation:

a List the sample space for this experiment.

All possible blood types(A, B, AB or O). So

S = {A,B,AB,O}

b Make use of the information given above to assign probabilities to each of the simple events.

The proportions of blood phenotypes, A, B, AB, and O, in the population of all Caucasians in the United States are approximately .41, .10, .04, and .45, respectively.

So

P(A) = 0.41, P(B) = 0.1, P(AB) = 0.04, P(O) = 0.45

c What is the probability that the person chosen at random has either type A or type AB blood

P(A) + P(AB) = 0.41 + 0.04 = 0.45

0.45 = 45% probability that the person chosen at random has either type A or type AB blood

6 0
2 years ago
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