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2 years ago

What is the term in sequence is the value 191..... an=2+7(n-1),

Mathematics

1 answer:

Alekssandra [29.7K]2 years ago

8 0

Answer:

28th

Step-by-step explanation:

Put that value into the formula and solve for n.

191 = 2 +7(n -1)

(191 -2)/7 = n-1 . . . . . . . subtract 2 and divide by 7

27 +1 = n . . . . . . . . . . . .add 1

191 is the 28th term in the sequence.

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The point (2, –4) is reflected across the line y = –1. What are the coordinates of the image?

schepotkina [342]

ANSWER

The coordinates of the image are (2,2)

EXPLANATION

The mapping for a reflection across the line y=k is :

$(x,y)\to (x,2k-y)$

We want to find the image of the point (2,-4) after a reflection in the line y=-1.

In this case k=-1.

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This simplifies to,

$(2, - 4)\to (2, - 2 + 4)$

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1 year ago

Jeffrey calculated the slope between two pairs of points. He found that the slope between -5, 6 and -3, 2 is -2. He also found t

Cerrena [4.2K]

Answer:

Jeffrey is correct

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Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

step 1

Find the slope between -5, 6 and -3, 2

substitute the values in the formula

$m=\frac{2-6}{-3+5}$

$m=\frac{-4}{2}=-2$

step 2

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substitute the values in the formula

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step 3

Find the slope between (-3, 2) and (0, -4)

substitute the values in the formula

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Jeffrey is correct

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2 years ago

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mr Goodwill [35]

Answer:

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Step-by-step explanation:

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3 years ago

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