Ask question

Ask question

All categories

3 years ago

15

Let xy = z, where x,y,z and nonzero numbers. If x is multiplied by 3 and z is divided by 3, this is equivalent to multiplying y

by
A. 1/9 B. 1/3 C. 1 D. 3 E. 9

1 answer:

Rashid [163]3 years ago

5 0

Y=z/x
for the second case y₁=(z/3)/3x =(z/x)*(1/9) =y/9

thus answer is A

You might be interested in

What is the digit in 913 and where's the digit in the tens place and the value of the digit tens someone answer for my homework

lorasvet [3.4K]

4. Period with the digits 913 is called thousands period.
5. The digit in the ten thousand place is 1.
6. The value of 9 is hundred thousands.

Hope it will help you :)

3 0

3 years ago

Read 2 more answers

Plot the x- and y-intercepts to graph the equation. <br> y = 1/3x − 1

Trava [24]

If you have questions, feel free to ask

8 0

3 years ago

Read 2 more answers

The circumference of the base of a cylinder is 24π mm. A similar cylinder has a base with circumference of 60π mm. The lateral a

earnstyle [38]

Given that the figures are similar polygons, the ratio of their ratios should be equal to the square of the ratio of their circumference. If we let x be the lateral area of the smaller cylinder then,
(x/210π) = (24π/60π)²
The value of x from the equation is,
x = 33.6π
Thus, the area of the smaller cylinder is equal to 33.6π mm².

6 0

4 years ago

Read 2 more answers

Based on past experience, a bank believes that 8.9 % of the people who receive loans will not make payments on time. The bank ha

love history [14]

Answer:

To be able to approximate the sampling distribution with a normal model, it is needed that $np \geq 10$ and $n(1-p) \geq 10$ , and both conditions are satisfied in this problem.

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they will make payments on time, or they won't. The probability of a person making the payment on time is independent of any other person, which means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

Probability of exactly x successes on n repeated trials, with p probability.

The sampling distribution can be approximated to a normal model if:

$np \geq 10$ and $n(1-p) \geq 10$

Based on past experience, a bank believes that 8.9 % of the people who receive loans will not make payments on time.

This means that $p = 0.089$

The bank has recently approved 220 loans.

This means that $n = 220$

What must be true to be able to approximate the sampling distribution with a normal model?

$np = 220*0.089 = 19.58 \geq 10$

$n(1-p) = 220*0.911 = 200.42 \geq 10$

To be able to approximate the sampling distribution with a normal model, it is needed that $np \geq 10$ and $n(1-p) \geq 10$ , and both conditions are satisfied in this problem.

3 0

3 years ago

The price of a technology stock has dropped to $9.64 today. Yesterday's price was $9.75. Find the percentage decrease. Round you

Ket [755]

Answer:

1.1%

Step-by-step explanation:

975-1.1%=964.275

7 0

2 years ago