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ella [17]
3 years ago
14

5. ERROR ANALYSIS Describe and correct the error in finding the sum of the number

Mathematics
1 answer:
Semmy [17]3 years ago
8 0

Answer:

  (25 × 10") + 153 × 10" = (25 +153) × 10" = 178 × 10" = 1780"

Step-by-step explanation:

a) Numbers are miscopied: the numbers in parentheses should be (25 +153). Of course, the sum of these should be 178, not 78.

b) The common factor 10" is somehow expanded to 110' x 10°. It should be 10".

The sum should be ...

  (25 × 10") + 153 × 10" = (25 +153) × 10"

  = 178 × 10" = 1780" . . . . . correct sum

_____

Maybe the middle step is an attempt to convert to feet.

  1780" × (1')/(12") = (148 1/3)' = 148' 4"

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Tatiana [17]

Answer:

e. R′

Step-by-step explanation:

Let the Sample Space be a universal set consisting of 3 red  and 6 blue cards. Then the event of  of getting 4 blue cards will be given

R complement = R` = Universal Set minus Red cards will give blue cards.

a. R OR O

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b. B AND O

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c. R OR E

4 is even but we need blue

d. R AND O

Red and odd is again not required

e. R′  = It  will give our required result.

f. E′= 4 is even if it is complemented it cannot be obtained and will be left out.

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4 years ago
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Marrrta [24]

Answer:

x= -2

Step-by-step explanation:

-3x+6x+3=x-1

3x-x= -1-3

2x= -4

x= -2

6 0
3 years ago
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6. In both Mr. Jacquez's Math 2 classes, Period 2 and Period 3 were given the same test. The table below shows the results from
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Step-by-step explanation:

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I hope this helps.

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