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2 years ago

Which situation is best represented by the following equation?

Mathematics

2 answers:

liq [111]2 years ago

7 0

Answer:

Step-by-step explanation:

zlopas [31]2 years ago

4 0

Answer: D)

Step-by-step explanation:

Hi, to answer this question we have to analyze the information given:

1750 − 250x = 1000.

So, in this expression $1750 is the amount of money that the Russell family started with, and 250 is the cost of each day on vacation.

Since the cost of each day is multiplied by a variable, the variable "x" is the number of days that the Russell’s have been on vacation.

1000 is the money left to spend.

Option d)

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weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probabi

kenny6666 [7]

Answer:

0.34134

Step-by-step explanation:

In other to solve for this question, we would be using the z score formula

z = (x - μ) / σ

x = raw score

μ = mean

σ = Standard deviation

We are told in the question to find the probability that a worker selected at random makes between $350 and $400

let x1 = 350 and x2= 400 with the mean μ = 400 and standard deviation σ = $50.

z1 = (x1 - μ) / σ = (350-400) / 50 = -1

z2 = (x2 - μ) / σ = (400 - 400) / 50 = (0/50) = 0

From tables, P(z <= -1) = 0.15866

P(z <= 0) = 0.5

Then, the probability would give us, P(-1 ≤ z ≤ 0) =0.5 - 0.15866 =

0.34134

Hence, The probability that a worker selected at random makes between $350 and $400 = 0.34134

7 0

2 years ago

Express 25.6 nanometres in metres, giving your answer in standard form.

zhannawk [14.2K]

Answer:

10 to power of -8 so 0.00000001 I think

8 0

2 years ago

by visual inspection, determine the best-fitting regression model for the data plot below. A. No pattern B. Quadratic C.Linear D

liq [111]

Answer:

C) Linear

Step-by-step explanation:

We can see from the plot that the data approach a straight line.

This means we can draw a line of best fit through this data and it should hit several data points; thus the answer is linear.

4 0

2 years ago

Read 2 more answers

Kenny is thinking of two numbers greater than 10.

soldier1979 [14.2K]

Answer:

The numbers are 21 and 28

Step-by-step explanation:

Here, we want to write out the two numbers from the information in the question

Firstly, the two numbers are greater than 10

The highest common factor of both numbers is 7

While the lowest common multiple of both numbers is 84

Since 7 is a factor of both, the numbers must be multiples of 7

So let us list out the multiples of 7 greater than 10

14, 21 , 28 , 35 , 42 , 49, 56 , 63 , 70 , 77 , 84 ,

The numbers cannot be greater than 84

out of all, only the following is a multiple of 84;

14,21 , 28 , 42 and 84

The correct answers here are 21 and 28

Reason for this is that only the two satisfied the properties given

8 0

2 years ago

The tens digit is missing from the three digit number 8_9. If the tens digit is to be randomly selected from the ten different d

Nastasia [14]

Answer:

9 times 91 = 819

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers