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kifflom [539]
3 years ago
11

Help if you can if not that’s fine

Mathematics
2 answers:
julsineya [31]3 years ago
6 0

Answer:

c.

Step-by-step explanation:

in table one they are adding two to the value of x

in table two they are multiplying x by 4

astra-53 [7]3 years ago
6 0

Answer:

Table 1 shows additive relationship. Table 2 shows multiplcative relationship.

Step-by-step explanation:

look at the x and y

table 1:

for y to be determined, you add 2 to the x value

1 + 2 = 3

2 +2 = 4

3 + 2 = 5

4 + 2 = 6

table 2:

for y to be detrmined, you multiply x by 4

1 x 4 = 4

2 x 4 = 8

3 x 4 = 12

4 x 4 = 16

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If c = the number of cars in a parking lot, which algebraic expression
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Answer:

c+9

Step-by-step explanation:

Key word SUM means addition

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Find the sum of the geometric sequence. (1 point) 1, one divided by two, one divided by four, one divided by eight, one divided
Firlakuza [10]
GP = 1/2 , 1/4 , 1/8 , 1/16
1st) the common ratio is (1/4 : 1/2 ) = 1/2, so r =1/2
2nd) the sum of a GP is:

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given: s is the midpoint of rt

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3 years ago
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Kaitlyn is sharpening a pencil that is 19 cm. Each time she sharpens it goes down 2.5 cm. If she sharpens her pencil 4 times. Ho
Natasha2012 [34]

Answer:

9 cm

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7 0
3 years ago
Mr. Smith traveled to a city 300 miles from his home to attend a meeting. Due to car trouble, his average speed returning was 6
Kryger [21]

Answer: The speed at which he traveled to the city is 69.8 mph

Step-by-step explanation:

Let x represent the speed at which he traveled to the city.

Mr. Smith traveled to a city 300 miles from his home to attend a meeting.

Time = distance/speed

Time taken to travel to the city is

300/x

Due to car trouble, his average speed on returning was 6 mph less than his speed going. This means that the speed at which he returned is (x - 6) mph. Time taken to return from the city is

300/(x - 6)

If the total time for the round trip was 9 hours, it means that

300/x + 300/(x - 6) = 9

Cross multiplying by x(x - 6), it becomes

300(x - 6) + 300x = 9x(x - 6)

300x - 1800 + 300x = 9x² - 54x

9x² - 54x - 300x - 300x - 1800 = 0

9x² - 654x -1800 = 0

Applying the general quadratic equation,

x = [- b ± √(b² - 4ac)]/2a

From the equation given,

a = 9

b = - 654

c = 1800

Therefore,

x = [- - 654 ± √(- 654² - 4 × 9 × 1800)]/2 × 9

x = [654 ± √(427716 - 64800)]/18

x = [654 ± √362916.4]/18

x = (654 + 602.4)/2 or x = (654 - 602.4)/18

x = 1256.4/18 or x = 51.6/18

x = 69.8mph or x = 2.9 mph

The speed at which he traveled to the city is 69.8 mph

By checking,

Time spent travelling to the city = 300/69.8 = 4.3 hours

Time spent returning =

300/(69.8 - 6) = 4.7 hours

4.3 + 4.7 = 9 hours

3 0
3 years ago
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