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slava [35]
2 years ago
7

30 PTS!! URGENT JUST 3 QUESTIONS PLEASE

Mathematics
1 answer:
Harrizon [31]2 years ago
4 0

Answer:

1. 7    

2. B

3. C

Step-by-step explanation:

hope its right

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Use the figure below to find AC<br><br> A. 16<br><br> B. 20<br><br> C. 40<br><br> D. 50
Murrr4er [49]
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3 years ago
There is a bag filled with 4 blue and 5 red marbles.
kkurt [141]

Answer:

  • 5/9

Step-by-step explanation:

There are 4 blue, 5 red and total of 9 marbles.

<u>If two marbles are taken and we are looking for exactly one red, then it is:</u>

  • red, then blue or blue, then red

<u>Find the probability of each case:</u>

  • P(r, b) = 5/9*4/8 = 5/18
  • P(b, r) = 4/9*5/8 = 5/18

<u>Probability of exactly one red:</u>

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6 0
2 years ago
Solve |2x - 1| + 3 = 6.
umka21 [38]

Answer:

x =2                         x = -1

Step-by-step explanation:

|2x - 1| + 3 = 6.

Subtract 3 from each side

|2x - 1| + 3-3 = 6-3

|2x - 1|= 3

An absolute value has two solutions, one positive and one negative

2x-1 =3                   2x -1 = -3

Add 1 to all sides

2x-1+1 =3+1             2x-1+1 = -3+1

2x = 4                      2x =-2

Divide by 2

2x/2 = 4/2                 2x/2 = -2/2

x =2                         x = -1

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3 years ago
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2 years ago
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1. Jada measured the height of a plant in a science experiment and finds that, to the nearest 1/8 of an inch, it
Nonamiya [84]

Answer:

here

Step-by-step explanation:

Given that the height(h) of the plant to the nearest 1/4 of an inch is 3/4 inches = 0.75 inches.

it is obvious that the height will lie within the range

Thus,

a. The largest actual height could be 0.875 inches, while

b. The smallest actual height could be 0.625 inches

c. The percentage error is given by the formula

if we take the lowest value, for instance, as the exact, i.e. 0.625 inches, then % error = [(0.75-0.625)/0.75]*100% = 16.7%

5 0
2 years ago
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