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alina1380 [7]
4 years ago
11

I need help on this. please help

Mathematics
1 answer:
11111nata11111 [884]4 years ago
6 0

Answer:

Step-by-step explanation:

It is 1.5 for it it is good

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Use the interactive expression equivalent to 4x-4-2x+3. ​
VARVARA [1.3K]

Answer: x = 1/2

Step-by-step explanation:

4x - 2x - 4 + 3

2x - 1

x = 1/2

7 0
2 years ago
Consider a binomial experiment with n = 5 trials where the probability of success on a single trial is p = 0.30. (a) Find P(r =
anyanavicka [17]

Answer:

0.16807 ; 0.83193

Step-by-step explanation:

Given that:

Number of trials, n = 5

Probability of success, p = 0.30

P(r = 0)

Using the binomial probability relation :

P(x =r) = nCr * p^r * (1 - p)^(n - r)

(a) Find P(r = 0).

P(r = 0) = 5C0 * 0.3^0 * (0.7)^(5- 0)

= 1 * 1 * 0.16807

= 0.16807

(b) Find P(r ≥ 1) by using the complement rule

P(r ≥ 1) = 1 - P(r = 0)

P(r ≥ 1) = 1 - 0.16807

P(r ≥ 1) = 0.83193

3 0
3 years ago
a flat rectangular piece of aluminum has a perimeter of 64 inches. the length is 10 inches longer than the width. find the width
I am Lyosha [343]

Answer:

The width of the piece is 11 inches

Step-by-step explanation:

Let

x ----> the length of the rectangular piece of aluminum in inches

y ----> the width of the rectangular piece of aluminum in inches

we know that

The perimeter of the rectangular piece of aluminum is equal to

P=2(x+y)

we have

P=64\ in

so

64=2(x+y)

simplify

32=x+y ----> equation A

x=y+10 ----> equation B

Solve the system by substitution

substitute equation B in equation A

32=y+10+y

solve for y

32=2y+10

2y=32-10

2y=22

y=11

therefore

The width of the piece is 11 inches

3 0
3 years ago
Solving Systems Using Inverses
Zanzabum

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12x the second -12x -16

Step-by-step explanation:

Solving systems of equations with 3 variables is very similar

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3 years ago
Given the formula x,= 2a(b-+7), find x if a=3 and- b:S
dusya [7]
2x3(S-+7)=6xS=7............
6 0
4 years ago
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