3 years ago

Please urgent help on these two, no links

1 answer:

8 0

1.(x+3)x(3x+4). The second picture answer is in the picture

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Anika [276]

The answer should be 648

4 0

3 years ago

marissa [1.9K]

I think it’s 4 but not sure

3 0

3 years ago

Lelechka [254]

Answer:

The degrees of freedom for this sample are 27.

The sample size to get a margin of error equal or less than 0.3656 is n=4450.

Step-by-step explanation:

The degrees of freedom for calculating the value of t are:

$df=n-1=28-1=27$

With 27 degrees of freedom and 95% confidence level, from a table we can get that the t-value is t=2.052.

The sample size to get a margin of error equal or less than 0.3656 can be calculated as:

$MOE=t\cdot s/\sqrt{n}\\\\n=\left(\dfrac{t\cdot s}{MOE}\right)^2=\left(\dfrac{2.052\cdot 11.8841}{0.3656}\right)^2=66.7^2\\\\\\n=4449.13\approx4450$

6 0

3 years ago

MatroZZZ [7]

Answer:

y=3x -6

Step-by-step explanation:

3=9+b

b= -6

3 0

3 years ago

sladkih [1.3K]

Answer:

14 * 8 = money given out

Step-by-step explanation:

#of people given money * (times) amount per person.

6 0

3 years ago