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kotykmax [81]
3 years ago
13

25 POINTS!!! complete the following table with the mathematical statements that correspond to the properties used to solve 3n-5=

-8(6+5n)

Mathematics
2 answers:
Mamont248 [21]3 years ago
8 0

Answer:

Step-by-step explanation:

AysviL [449]3 years ago
5 0

Answer:

n=−1

Step-by-step explanation:

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Is 1.337... rational or irrational
olya-2409 [2.1K]
Irrational irrational
3 0
3 years ago
An article is marked to sell at profit of 16%. if it is sold for rs 62.50 less ,t
Anettt [7]

Answer:

the price is 250

Step-by-step explanation:

let cp be x.

the marked price is 116x/100=1.16x.

25x/100=6250/100

x=250

6 0
3 years ago
Given the table below, evaluate the following:
NeX [460]

Part A

See the image labeled "part A". We'll use the values marked in blue and red for f(2) and g(2) respectively. These values are the function outputs when the input is x = 2.

(f-2g)(x) = f(x) - 2*g(x)

(f-2g)(2) = f(2) - 2*g(2)

(f-2g)(2) = 1 - 2*3

(f-2g)(2) = -5

Answer: -5

=====================================================

Part B

See the image labeled "part B". We'll use the values marked in blue and red for g(-1) and f(0) respectively.

We have to start with g(-1) and then chain it to finding f(0) afterward.

g(-1) = 0

f(g(-1)) = f(0) = 9

Answer: 9

=====================================================

Part C

See the image labeled "part C". We'll use the values marked in blue and red for g(-2) and g(-3) respectively.

Because g(-2) is the innermost function, it must go first, then g(-3) can go next.

g(-2) = -3

g(g(-2)) = g(-3) = 8

Answer: 8

3 0
3 years ago
Can someone plz help me with this problem and plz show work.
motikmotik

Answer:

C

Step-by-step explanation:

y = 2x + 5

the slope (m) of this line is 2 (which can be written as 2/1)

The slope of a perpendicular line is -1/m (the reciprocal of the slope with the opposite sign)

so m = 2/1 => -1/m = - 1/2 = the slope of a line perpendicular to y = 2x + 5

3 0
4 years ago
You collect baseball cards and buy sealed packs from the grocery store and clearly have no idea which cards are inside (nor if t
ololo11 [35]

Answer:

(a) 0.9607

(c) 0.04

(d) 0.8184

(e) 0.074

(f) 0.0853/e^0.8;

750 cards

Step-by-step explanation:

Let the probability of success of a valuable card be p

p= 1/250 = 0.004,

q = 1-p = (249/250)

(a) There are 10 cards in one pack

The probability that there are no valuable card is given by:

Pr(X= 0) = 10C0 × (1/250)^0 ×(249/250)^10

10C0 = 10 combination 0= 10!/10!0!

=1

Pr (X= 0) = (249/250)^10

Pr (X=0) = 0.9607

(c) Expected number of valuable card is given by:

E(X) = np , n= 10, p= 1/250

E(X) = 10 × 1/250 = 1/25 = 0.04

(d) 5 packages means 5 × 10= 50 cards

Pr(X=0) = 50C0 × (1/250)^0 ×(249/250)^50

50C0 = 50!/50! ×0!=1

Pr (X=0) = (249/250)^50

Pr (X= 0) =(0.996)^50

Pr (X=0) = 0.8184

(e) For this case we use the Binomial Distribution

2 packages 2 × 10 = 20 cards

n = 20 , x = 1

We use:

P(X=1) = 20C1 × (1/250)^ 1 × (249/250)^19

Pr (X=1) = 20C1 × (1/250)^1 × (249/250)^19

Pr (X=1) = 20 × (1/250)¹ × (249/250)^19

Pr (X= 1 )= 0.074

(f) 20 packages = 200 cards

For this we apply Poisson distribution

P(X=3) = (e ^-h × h ^x) / x!

Where h = np = 200/250 = 0.8

P(X=3) = e^-0.8 × (0.8)^3 / 3!

P(X=3) = 0.991 × 0.512/6

P(X=3) = 0.0846

3 = n p

n = 3/p = 3 /0.04

n = 750 cards

8 0
4 years ago
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