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4 years ago

Find the GCF of 6ab, 3a

Mathematics

1 answer:

Irina-Kira [14]4 years ago

6 0

3a, because both terms contain a, and 6 is divisible by 3

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Solve the following equations 3x-5=40

Otrada [13]

Answer:

x=15

Step-by-step explanation:

3x−5+5=40+5

3x=45

Step 2: Divide both sides by 3.

3x3=453

x=15

3 0

3 years ago

Read 2 more answers

consider the following matrix. I need to know if the system has zero or infinite solutions or just one solution and if the matri

olga nikolaevna [1]

Answer:

I think it would be no solution

Step-by-step explanation:

since there is the same slope, the line would never cross. Also the determinate is 0 or 1/0, so there would be no solution

3 0

2 years ago

PLEASE HELP WILL GIVE BRAINLIEST

Ghella [55]

Answer:

Answer attached

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

The diameters of aluminum alloy rods produced on an extrusion machine are known to have a standard deviation of 0.0001 in. A ran

Murljashka [212]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The null hypothesis is rejected this means that $\mu \ne 0.5025$

The 95% confidence interval is $0.5045608 < \mu < 0.5046392$

Step-by-step explanation:

From the question we are told that

The standard deviation is s= 0.0001

The sample size is n = 25

The sample mean is $\= x = 0.5046 \ in$

The population mean is $\mu = 0.5025 \ in$

The null hypothesis is $H_o : \mu = 0.5025$

The alternative hypothesis is $H_a : \mu \ne 0.5025$

The test statistics is mathematically represented as

$t = \frac{0.5046 - 0.5025}{ \frac{0.0001}{\sqrt{25} } }$

$t = 105$

So the p-value from the z-table is mathematically represented as

$p-value = 2 * P( z > 105)$

$p-value = 0.000$

seeing that

$p-value < \alpha$ we reject the null hypothesis

The critical value of

$\frac{\alpha }{2}$ obtained from the normal distribution table is

$Z_{\frac{\alpha }{2} } = 1.96$

The margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} }*\frac{s}{\sqrt{n} }$

=> $E = 1.96 *\frac{0.0001}{\sqrt{25} }$

=> $E =3.92 *10^{-5}$

The 95% confidence level is mathematically represented as

$\= x - E < \mu < \= x + E$

=> $0.5046 - 3.92 *10^{-5} < \mu < 0.5046 + 3.92 *10^{-5}$

=> $0.5045608 < \mu < 0.5046392$

8 0

3 years ago

Can someone help me thats really good at math and knows what there doing). Victoria is 4 years older than her neighbor. The sum

USPshnik [31]

v is 4 more tha x

v=4+x

sum is no more than 14

v+x≤14

sub 4+x for v

4+x+x≤14

4+2x≤14

minus 4 both sides

2x≤10

divide both sides by 2

x≤5

5+4=9

the neighboor's age is 5 years

and victoria is 9

6 0

4 years ago