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3 years ago

6

What is true about the dilation?

2 answers:

allsm [11]3 years ago

8 0

Answer:

still nothing

Step-by-step explanation:

Sladkaya [172]3 years ago

4 0

Answer: A. It is a reduction with a scale factor between 0 and 1

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ASAP I WILL MARK YOU BRANLIEST IF YOU ANSWER THIS QUESTION

Nastasia [14]

9 • 10 = 90 dollars worth of souvenirs
387 - 90 = 279 dollars worth of tickets
279/9 = 31 dollars

Answer $31

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3 years ago

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Please help!! Confused trying to find riemann sum aprroximation.

il63 [147K]

Just multiply and the answer should be in=78x

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3 years ago

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

Find the next two terms in the sequence 1/3, 1/9,1/27,1/81....

netineya [11]

1/243

each second number is being multiplied by three

3*3=9

9*3=27

27*3=81

so 81*3=243

243 is the answer

3 0

3 years ago

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The group of values that satisfy an inequality

Harman [31]

This is called the feasible region

3 0

4 years ago