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2 years ago

Find the sum using the formulas for the sums of powers of integers ( problem attached )

Mathematics

1 answer:

Natasha2012 [34]2 years ago

7 0

Correct Answer: - 550

We can use the distributive property to distribute the summation to the variables and then get the constant out to apply the summation formulas as shown below in the attached image.

The equation editor does not have a summation symbol, so I have attached the solution using the image.

The correct answer to this question is -550. First option is the correct one.

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6+(-3)=<br>answer question plz

34kurt

Answer:

-3

Step-by-step explanation: Because it is just like saying 6-3

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2 years ago

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What is 75 + 15x ≥ 140

melomori [17]

75+ 15x ≥ 140
⇒ 15x ≥ 140-75
⇒ 15x ≥ 65
⇒ x ≥ 65/15
⇒ x ≥ 13/3
⇒ x ≥ 4 1/3

Final answer: x ≥ 4 1/3~

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2 years ago

Line EF has an equation of a line y = −2x + 7. Which of the following could be an equation for a line that is perpendicular to l

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Answer:

y = 1/2x -3

Step-by-step explanation:

The slope of the given line is the x-coefficient: -2. The slope of the perpendicular line is the negative reciprocal of this:

-1/(-2) = 1/2

The only answer choice with a slope of 1/2 is ...

y = 1/2x -3

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2 years ago

One hundred tickets, numbered 1, 2, 3, …, 100, are sold to 100 people for a drawing. Four different prizes are awarded, includin

stira [4]

Solution :

It is given that four different prizes were awarded. So,

a). 4 ways for person 47 to win a prize

99 ways to give out the 2nd prize

98 ways to give the 3rd prize

97 ways to give the last prize

∴ P(99,3) = 99 x 98 x 97

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97 ways to give out the last prize

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2 years ago

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Nadusha1986 [10]

The answer would x=19 units

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