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Volgvan
3 years ago
10

PLEASE HELP MEEE

Mathematics
1 answer:
STALIN [3.7K]3 years ago
4 0
If there are 16 ounces in a pound, and 8 ounces costs $8, The best answer would be D. $16 per pound
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What is the point-slope equation of the line with slope -4 that goes through the point (-2, 7)?
almond37 [142]

Answer:

y-7=-4(x+2)

Step-by-step explanation:

y-y1=m(x-x1)

y-7=-4(x-(-2))

y-7=-4(x+2)

6 0
3 years ago
The probability distribution for the random variable x follows. x f(x) 20 0.20 25 0.15 30 0.30 35 0.35 (a) Is this probability d
Damm [24]

Answer:

(a) The probability distribution is valid.

(b) The probability that x = 30 is 0.30.

Step-by-step explanation:

The probability distribution of the random variable <em>X</em> is:

<em>    x</em>:  20   |  25  |  30   |   35

f (<em>x</em>): 0.20 | 0.15 | 0.30 | 0.35

(a)

The properties of a probability distribution are:

  1. 0 ≤ P (X) ≤ 1
  2. ∑ P (X) = 1

All the probability value are more than 0 and less than 1.

Compute the sum of all the probabilities as follows:

\sum P(X)=0.20+0.15+0.30+0.35=1

The sum of all probabilities is 1.

Thus, the probability distribution is valid.

(b)

Consider the probability distribution table.

The probability of <em>X</em> = 30 is,

P (X = 30) = 0.30.

Thus, the probability that x = 30 is 0.30.

6 0
3 years ago
Find the constant of proportionality of the equation 2y = 20x
olganol [36]

Answer:

10

Step-by-step explanation:

We want to find k when y=kx

2y = 20x

Divide each side by 2

2y/2 =20x/2

y = 10x

The constant of proportionality is 10

4 0
3 years ago
In the expression 3x²y + 4x – 5x’y, are the terms 3x’y
Sidana [21]

Answer:

Yes. 3x²y and -5x²y are like terms because the variables x and y have the same exponents.

3 0
3 years ago
Describe the pattern
krek1111 [17]

Answer:

negative linear

Step-by-step explanation:

as you see the correlation is going negative in a linear line.

3 0
2 years ago
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