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Alex777 [14]
3 years ago
14

(50 POINTS) Express each sum using summation notation.

Mathematics
1 answer:
vesna_86 [32]3 years ago
4 0

14: a

1

=

39

/2                              0.25               313%        16%

15:     54

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The graph below represents the price of sending text messages using the services of a phone company. What is the constant of pro
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Answer:

8

Step-by-step explanation:

The equation is of the form

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with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (2, 16) ← 2 points on the line

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The y- axis goes up and down.
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prisoha [69]
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3 years ago
What is the correct factorization of x^2 - 2x - 15?
iragen [17]

Answer:

option b

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{x}^{2}  - 2x - 15

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x(x - 5) + 3(x - 5) = 0

(x - 5)(x + 3) = 0

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8 0
2 years ago
If 10 man can work 6hours.How many more men are needed towork in 4 hours​
Lerok [7]

Answer:

5 more men

Step-by-step explanation:

10 men do a job in 6 hours.

To do the job in 2 hours, 1/3 of the time, you need 3 times as many men.

30 men do a job in 2 hours.

To do the job in twice the time, 4 hours, you need half the men.

15 men do a job in 4 hours.

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