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3 years ago

If Gary is 11 years old how old are each of the family members

Mathematics

1 answer:

Korolek [52]3 years ago

3 0

Answer:

everyone except his smaller siblings will be older than him

Step-by-step explanation:

if you need the correct answer say the full question you

dumb

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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

$t_{0.05, 62} = 1.67$

$t_c = 2 * 1.67$

=> $t_c = 3.34$

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

Solve for f.<br> -f + 2 + 4f = 8 - 3f

IrinaK [193]

-f +2+4f = 8-3f

3f+2 = 8-3f

6f = 6

f = 1

8 0

3 years ago

Read 2 more answers

What is the volume of this rectangular prism? 30.75 cm^3

Alex787 [66]

This question is incomplete. Because it lacks the diagram of the Rectangular prism. Find attached to this answer the appropriate diagram.

Answer:

295.2 cm³

Step-by-step explanation:

A Rectangular Prism is a 3 dimensional geometric shape.

The formula used to calculate the volume of the Rectangular Prism = Length × Width × Height

Length = 15cm

Height = 4.8cm

Width = 4.1cm

Volume of the Rectangular Prism = 15cm × 4.8cm × 4.1cm

= 295.2 cm³

3 0

3 years ago

Question 5(Multiple Choice Worth 4 points)

Korvikt [17]

C because each adult and youth times the money amount would be the total. So for instance 74(2)+35(2)=218 bc that's the total. Hope I helped.

5 0

3 years ago

Find the probability that a point in the figure chosen at random is in the

bekas [8.4K]

Answer:

Correct option: D) 1/2

Step-by-step explanation:

First we need to find the area of the kite and the area of the rectangle.

The diagonals of the kite are 16 and 12, as they are parallel to the sides of the rectangle.

So the area of the kite is A1 = (1/2) * 16 * 12 = 96

The area of the rectagle is the product of the sides, so A2 = 16 * 12 = 192

Now, to find the probability of a random point being inside the kite, we just need to divide the area of the kite by the area of the rectangle:

Probability = A1 / A2 = 96 / 192 = 1/2

Correct option: D)

3 0

3 years ago