MATHEMATICS HIGH SCHOOL

The depth, in inches, of an object as it sinks inthe river is found by the equation d =0.5t,
where t is measured in seconds. Which best
describes the constant of proportionality?
A 0.5 second per inch
B 0.5 inch per second
C 2 inches per second
D 1 inch per 0.5 second

Answers

Answer 1
Answer: I got A or D hope this works
Answer 2
Answer:

Answer:

It c.

Step-by-step explanation:

i had the same question on a quiz and all you have to do is divide per sec.

Related Questions

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Evaluate 33 + 8 ÷ 4.
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In a class of 25 students, 15 of them have a driver's license. If ten students are randomly selected, what is the expected number of students that would have a driver's license?

What is the area of the triangle A. 96 sq meters
B. 48 sq meters
C. 24 sq meters
D. 7 sq meters

Answers

 c)24 sq meters.....................

A rectangle has an area of 4x2 +19x + 12 and a length of (x + 4). What is the width?

Answers

The width of the rectangle with an area x² = 19x + 12 is (4x + 3).

What are the area and perimeter of a rectangle?

The area of a rectangle is the product of its length and width.

The perimeter of a rectangle is the sum of the lengths of all the sides.

We know the area of a rectangle is (length×widh).

Given, A rectangle has an area of 4x² + 19x + 12 and a length of (x + 4).

∴ width of the rectangle is = (4x² + 19x + 12)/(x + 4).

Or, we know that the product of two linear equations is a quadratic so,

4x² + 19x + 12.

4x² + 16x + 3x + 12.

4x(x + 4) + 3(x + 4).

(x + 4)(4x + 3).

So, the width of the rectangle is (4x + 3).

learn more about quadratic equations here :

brainly.com/question/17177510

#SPJ2
The answer is (4x + 3) (x + 4)

Barry bought 100/300/50 liability with a $500 deductible on collision and $500 deductible on comprehensive coverage. The base premiums are $450, $245, $148, and $85, respectively. How much is his total base premium if his rating factor is 2.60?A) $675
B) $780
C) $928
D) $2,412.80

Answers

Answer:

The correct answer is D. $2412.8

Step-by-step explanation:

Sum of all liabilities Barry bought = 100 + 300 + 50 = $450

But $500 is deductible so there will be no charge on the liabilities.

Now, Sum of base premiums = 450 + 245 + 148 + 85 = $928

Also, the rating factor = 2.60

∴ Total base premium = (Sum of base premium) × Rating factor

                                      = 928 × 2.60 = $2412.8

Therefore, the correct answer is D. $2412.8
450+245+148+85
=928

928×2.60
=2,412.8

Alice works at a health care facility. She has measured the hemoglobin levels of 200 people. The data follows a normal distribution with a mean of 14 g/dL and a standard deviation of 1. From the given data, we can conclude that about people have hemoglobin levels less than 13, and about people have hemoglobin levels greater than 14.

Answers

Since the data follows a normal distribution, the 68-95-97 rule can be used to describe the number of people falling under N standard deviations from the mean. Since the standard deviation is 1, hemoglobin levels of 13 -15 g/dL contains 68% of the sample, or 136 people. This means the 32 people have less than 13 g/dL and 32 people have more than 15 g/dL.

Answer:

Step-by-step explanation:

took the test and got it right

Weather records show that the probability of rainfall in Florida in June is 0.86. What is the probability that it rains there in June at least 9 times in a decade?

Answers

0.5816 = 58.16% probability that it rains there in June at least 9 times in a decade.

For each June 9 in Florida, there are only two possible outcomes. Either it rains, or it does not. The probability of raining on June 9 of an year is independent of rain on June 9 on any other year, which means that the binomial probability distribution is used to solve this question.

---------------------------------------

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_(n,x).p^(x).(1-p)^(n-x)

In which C_(n,x) is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_(n,x) = (n!)/(x!(n-x)!)

And p is the probability of X happening.

---------------------------------------

  • 0.86 probability of rain means that p = 0.86
  • A decade means 10 years, so n = 10

---------------------------------------

What is the probability that it rains there in June at least 9 times in a decade?

This is:

P(X \geq 9) = P(X = 9) + P(X = 10)

In which

P(X = x) = C_(n,x).p^(x).(1-p)^(n-x)

P(X = 9) = C_(10,9).(0.86)^(9).(0.14)^(1) = 0.3603

P(X = 10) = C_(10,10).(0.86)^(10).(0.14)^(0) = 0.2213

Thus

P(X \geq 9) = P(X = 9) + P(X = 10) = 0.3603 + 0.2213 = 0.5816

0.5816 = 58.16% probability that it rains there in June at least 9 times in a decade.

A similar question is found at brainly.com/question/9631195
R - it is rain  (probablity: 0.86)
N - it is not rain (probablity: 1-0.86 = 0.14)
You've got these cases:

R R R R R R R R R N
R R R R R R R R N R
R R R R R R R N R R 
. . . 
N R R R R R R R R R     -  it is 10 cases.  Probablity each case is
(0.86)^9 * 0.14 - it is approximately  0.036   (9R and 1N - you multiply everything)

It is 10 cases so you have to multiply by 10  and you get 0.36

There is also eleventh case:

R R R R R R R R R R 

Probablity is (0.86)^10 approximately 0.22

Add these cases and you'll get your probablity:  0.36 + 0.22 = 0.58 

The list of a certain tool is x dollars. In store A the original selling price of the tool was $50 less than the list price, and the current selling price is 10% less than the original selling price. In store B the original selling price of the tool was 10% less than the list price, and the current selling price is $50 less than the original selling price.A) Quality A is greater
B) Quality B is greater
C) The two quantities are equal

Answers

ok so say that x=100 A: 100-50= 50 then take 10% 50 therefore it =5 B: 100-10%-50 i think it would be 10-50 which would =-40. ok now I' confused. Sorry. just try to set up the B equation and plug in a # for x and you will find your answer
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