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mezya [45]
3 years ago
14

Find the 8th term of the geometric sequence. An=-2.5•4^n-1

Mathematics
1 answer:
Pachacha [2.7K]3 years ago
8 0

8th term = 2.5×4^7 = 40960

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David's chocolate bar is 37% cocoa. If the weight of the chocolate bar is 51 grams, how many grams of cocoa does it contain? Rou
OverLord2011 [107]

Answer:

18.9

Step-by-step explanation:

You need to find 37% of 51

In other words: 37% x 51

3 0
2 years ago
Name two lines in the diagram.
Oksanka [162]

Answer:

Options (3) and (6)

Step-by-step explanation:

"A straight line is a set of all points between two points and extending beyond these points."

Therefore, from the given diagram,

Arrows connecting set of two points B and C and D and E will be straight lines.

Geometrically we denote them with an arrow over the line.

\overleftrightarrow {BC} and \overleftrightarrow {DE}

Therefore, Options (3) and (6) will be the answer.

6 0
3 years ago
Write an integer for each situation.(In this exercise you must Wirte the + and Negative signs) 1.) A profit of $12 2.) 1,440 fee
goldenfox [79]
1)  + $12, since it is a profit

2) -1440 ft,  since it is below the sea level

3) - 22°F,    since it is below

4) + 31 yards,  since it is a gain.
7 0
3 years ago
elimination was used to solve a system of equations. one of the intermediate steps led to the equation 2x= 8. which of the follo
konstantin123 [22]

9514 1404 393

Answer:

  C

Step-by-step explanation:

The step shown indicates that y was eliminated from the equations. For choices A, B, D, this is done by adding the equations together (the y-coefficients are opposites). The result of doing that gives x-terms of 4x, 0x, and 0x, respectively. These x-terms do not match the one given: 2x.

For choice C, the y-term is eliminated by subtracting twice the second equation from the first. Doing that gives ...

  (4x +2y) -2(x +y) = (14) -2(3)

  4x +2y -2x -2y = 14 -6 . . . . eliminate parentheses

  2x = 8 . . . . . . . . . . . . . . collect terms

8 0
3 years ago
What’s the correct answer for this question?
Helen [10]

Answer:

( -1 , 1 )

Step-by-step explanation:

(x1,y1) = (5,9)

(x2,y2) = (-7,-7)

=(-7+5/2 , -7+9/2)

= (-1,1)

3 0
3 years ago
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