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3 years ago

5

Whole Numbers include both positive and negative numbers. t or f

2 answers:

Luda [366]3 years ago

8 0

Answer:

False

Step-by-step explanation:

Whole numbers only have numbers from 0 forward with no fractions or decimals. {0, 1, 2, 3...}

Alex3 years ago

5 0

Answer:

t

Step-by-step explanation:

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4. Hydrocarbons in the cab of an automobile were measured during trips on the New Jersey Turnpike and trips through the Lincoln

pochemuha

Answer:

No these these result do not differ at 95% confidence level

Step-by-step explanation:

From the question we are told that

The first concentrations is $c _1= 30.0 \ g/m^3$

The second concentrations is $c _2 = 52.9 \ g/m^3$

The first sample size is $n_1 = 32$

The second sample size is $n_2 = 32$

The first standard deviation is $\sigma_1 = 30.0$

The first standard deviation is $\sigma_1 = 29.0$

The mean for Turnpike is $\= x _1 = \frac{c_1}{n} = \frac{31.4}{32} = 0.98125$

The mean for Tunnel is $\= x _2 = \frac{c_2}{n} = \frac{52.9}{32} = 1.6531$

The null hypothesis is $H_o : \mu _1 - \mu_2 = 0$

The alternative hypothesis is $H_a : \mu _1 - \mu_2 \ne 0$

Generally the test statistics is mathematically represented as

$t = \frac{\= x_1 - \= x_2}{ \sqrt{\frac{\sigma_1^2}{n_1} +\frac{\sigma_2^2}{n_2} }}$

$t = \frac{0.98125 - 1.6531}{ \sqrt{\frac{30^2}{32} +\frac{29^2}{32} }}$

$t = - 0.0899$

Generally the degree of freedom is mathematically represented as

$df = 32+ 32 - 2$

$df = 62$

The significance $\alpha$ is evaluated as

$\alpha = (C - 100 )\%$

=> $\alpha = (95 - 100 )\%$

=> $\alpha =0.05$

The critical value is evaluated as

$t_c = 2 * t_{0.05 , 62}$

From the student t- distribution table

$t_{0.05, 62} = 1.67$

So

$t_c = 2 * 1.67$

=> $t_c = 3.34$

given that

$t_c > t$ we fail to reject the null hypothesis so this mean that the result do not differ

6 0

3 years ago

It takes 2 1/2 posterboard to display half of your project how many poster boards will you need for your entire project

murzikaleks [220]

If 2 1/2 posterboard is enough for 1/2 of the project, it will take another 2 1/2 posterboard to display the other half of the project.

2 1/2 + 2 1/2 = 4 + 1/2 + 1/2 = 4 + 1 = 5

Answer: 5 posterboard.

5 0

3 years ago

I will givee Brainlist if anyone answers all these questions

vaieri [72.5K]

Theirs no picture, I dong know if you forgot to put it along with it but theirs nothing to answer

5 0

3 years ago

Read 2 more answers

If y varies directly as x^2 and y = 72 when x =3, what is the value of y when x = 6?

Komok [63]

Answer:

288

Step-by-step explanation:

$y \alpha x {}^{2}$

then

$y = kx {}^{2}$

72=9k

dividing both side by 9

k=72÷9

=8

$y = 8 {x}^{2}$

y=8×6²

y=8×36

y=288

6 0

4 years ago

The two-way table shows the ages of the players on different sOCcer teams.

Tomtit [17]

**Answer**
The true statement is: The probability that a randomly selected player on Team C is 10 years old is 5/16

please mark me brainliest, happy holidays :)

6 0

3 years ago