3 years ago

What is the y value when x= -1?

Mathematics

2 answers:

RUDIKE [14]3 years ago

6 0

2, 3, and 5. the y value = the x value +3. so if you add 3 to the x value, you get the y value

Gnoma [55]3 years ago

3 0

Answer:

-1, y = 2

0, y = 3

2, y = 5

Step-by-step explanation:

-1, y = -1 + 3

0, y = 0 + 3

2, y = 2 + 3

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the fifth term of an arithmetic progression is 40 and the seventh term is 28 more than the 3rd term. Find the first and 10th ter

wel

Answer:

Step-by-step explanation:

t5 = a + (5-1)d

t5 = a + 4d

40 = a + 4d

t3 = a + 2*d

t7 = a + 2d + 28 = a + 6d

Start with the seventh term which has 2 equal answers

a + 2d + 28 = a + 6d Subtract a from both sides

2d + 28 = 6d Subtract 2d from both sides

28 = 4d Divide by 4

28/4 = d

d = 7

==================

t5 = a + 4d = 40

a + 4*7 = 40

a = 40 - 28

a = 12

===================

First term is 12

10th term is

t10 = 12 + (10 - 1)*7

t10 = 12 + 9*7

t10 = 75

Interesting question. Thanks for posting

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3 years ago

4(x-5)=4x-20 solve this equation, and how many solutions are there?

puteri [66]

Answer:

4(x-5)=4x-20

4x-20=4x-20

+20 +20

4x=4x

-4x -4x therefore there's infinite solutions

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3 years ago

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fiasKO [112]

Answer:

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Answer:

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Step-by-step explanation:

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