All categories

3 years ago

Simplify the expressions: 2(3a+1)-5a

Mathematics

1 answer:

stepan [7]3 years ago

8 0

Answer:

6a+2-5a

ascending

2+a

descending

a+2

You might be interested in

What does this equal

AleksandrR [38]

Answer:

78125

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

2. Wpisz taką liczbę, aby rozwiązaniem równania była liczba 2.

lys-0071 [83]

I didn’t understand but when I understand I will help you

5 0

3 years ago

What is the value of x?

Airida [17]

The answer is should be 48

6 0

3 years ago

Insurance protects you from liability and allows you to provide for your own and others' long-term needs. But what if you never

professor190 [17]

Life , Health , Car are considered to be very important insurance , Rental Car Damage , Travel Insurance has no usage.

<h3>What is Insurance ?</h3>

Insurance is safe guarding any thing which has some monetary or emotional value to it , It can be life , health , car , house , your gold etc.

Insurance protects you against something you can never predict .The life is unpredictable and Insurance is a cover to that .

As given in the question , a person can be lucky enough that he never gets to use the money that he invested in the Insurance , but not investing due to this is wrong.

This is not difference of opinion but lack of prediction of future and lack of understanding the needs of life.

Life , Health , Car , Home , Fire etc . insurance that protects the basic amenities of life are considered to be very important ,

while nowadays insurance of Rental Car Damage , Travel Insurance , these are some which has no usage beyond the fact that they cover nothing.

To know more about Insurance

brainly.com/question/27822778

#SPJ1

7 0

2 years ago

Lucky Charms are sold in boxes with an advertised mean weight of 20.5 oz. The standard deviation is known to be 2.25 oz. A consu

Alinara [238K]

Answer:

Set of hypothesis.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 20.5 oz

Sample mean, $\bar{x}$ = 20.4 oz

Sample size, n = 50

Population standard deviation, σ = 2.25 oz

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 20.5\text{ oz}\\H_A: \mu < 20.5\text{ oz}$

We use One-tailed z test(left tailed) to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{20.4 - 20.5}{\frac{2.25}{\sqrt{50}} } = -0.3142$

Based on the significance level, we can make our decision and complete the hypothesis testing.

We may accept the null hypothesis or fail to accept depending on different significance level.

4 0

4 years ago