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morpeh [17]
2 years ago
6

4. Which of the following is an arithmetic sequence?A. 4, 1, -2,-5, -8 B.4,-12, 36, -108​

Mathematics
2 answers:
katrin2010 [14]2 years ago
6 0
A is an arithmetic sequence since the common difference is -3 while B is a geometric sequence and depends on multiples
Zolol [24]2 years ago
4 0
A is the answer :) it goes my increments of -3
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Please help me with question b) and please explain!!<br>look at the attached image
natta225 [31]

Answer:

17

Step-by-step explanation:

let x be the number of boxes to be shaded to make it 80%

x = 80% of total number

= 80/100 of 25

= 80/4

= 20

So 20 need to be shaded to fill 80%

Now, 13 of the grids are already shared so the amount of more squares that need to be shaded = 20-13

= 17 squares

4 0
3 years ago
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Two equal circles are cut out of a rectangle of card of dimensions 16 by 8. The circles have the maximum diameter possible. What
aivan3 [116]
Okay, so if your rectangle is 16 by 8, that means that the circle diameter of 8 because that would be outside of the card's width,
the area of the rectangle is 16 x 8 or 128 
the radius of the circle would be 4 (because 1/2 of the diameter is radius)
we know that the equation of the circle PIr^2, so the area of the circle is 16PI
then, the remaining area would be calculated by 128-16PI 
This comes out to be approximately 77.73 
3 0
3 years ago
PLZZZ HELP DUE NOW!!!!! 
Gala2k [10]
I believe the answer is B., weight when sold because it is dependent on x, the time(feed for one year).

8 0
2 years ago
A roulette wheel has 38 3838 slots, of which 18 1818 are red, 18 1818 are black, and 2 22 are green. In each round of the game,
Elina [12.6K]

The value of P(R = 3) is 0.2854

<h3>Probability</h3>

Probabilities are used to determine the chances of events.

The given parameters are:

  • n = 38 --- the number of slots
  • red = 18. --- the number of red slot
  • black = 18. --- the number of black slot
  • green = 2. --- the number of green slot

<h3>Individual probabilities</h3>

The probability that the ball lands on a red slot is calculated as:

p = \frac{18}{38}

Simplify

p= \frac{9}{19}

The probability that the ball does not land on a red slot is calculated as:

q = \frac{18+2}{38}

q = \frac{20}{38}

Simplify

q = \frac{10}{19}

<h3>Binomial probability</h3>

The value of P(R = 3) is then calculated using the following binomial probability formula

P(R = r) = ^nC_rp^rq^{n-r}

Where:

n = 7

r = 3

So, we have:

P(R = 3) = ^7C_3 \times (9/19)^3 \times (10/19)^{7-3}

P(R = 3) = 35 \times (9/19)^3 \times (10/19)^4

P(R = 3) = 0.2854

Hence, the value of P(R = 3) is 0.2854

Read more about probabilities at:

brainly.com/question/15246027

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2 years ago
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Furkat [3]
7a-2b=5a+b
2a=3b
a=3/2b
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3 years ago
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