3 years ago

What is the rule for the following sequence of numbers: 0,7,14,21_...?

Mathematics

1 answer:

Zielflug [23.3K]3 years ago

3 0

You're adding 7 each time.

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Please help i’m struggling bad

tino4ka555 [31]

Answer:

Step-by-step explanation:

86 = 2x - 20

+20 +20

106 = 2x

2 2

53 = x

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3 years ago

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The graph of a linear function is shown on the grid. (-3,3.6) (5,2) What is the rate of change of y with respect to x for this f

lilavasa [31]

Answer:

rate of change = -0.32

Step-by-step explanation:

Rate of change = slope,m

$m = \frac{y2 - y1}{x2 - x1} \\ m = \frac{3.6 - 2}{ - 3 - 2} \\ m = \frac{1.6}{ - 5} \\ m = \frac{ - 0.32}{1}$

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3 years ago

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A major department store chain is interested in estimating the mean amount its credit card customers spent on their first visit

sergiy2304 [10]

Answer:

95% Confidence interval: (39.43, 61.58)

Step-by-step explanation:

We are given the following in the question:

Sample mean, $\bar{x}$ = $50.50

Sample size, n = 15

Alpha, α = 0.05

Sample standard deviation = 20

95% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 14 and}~\alpha_{0.05} = \pm 2.1447$

$=50.50 \pm 2.1447(\dfrac{20}{\sqrt{15}} ) \\\\= 50.50 \pm 11.0751 \\= (39.4249,61.5751)\\\approx (39.43, 61.58)$

95% Confidence interval: (39.43, 61.58)

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3 years ago

What is the order of rotational symmetry of a regular octagon?

SSSSS [86.1K]

Answer:

Answer: I do not know the answer

Step-by-step explanation:

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2 years ago

What is the equation of this line A) y=-4x B) y=4x C) Y= 1/4x D) y=-1/4x

Hitman42 [59]

Answer:

The answer would be D.

Step-by-step explanation:

You can use an online graphing calculator to see the lines for each equation.

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3 years ago

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