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2 years ago

7

When given a trinomial with no GCF what is the first step in factoring?

2 answers:

Yuki888 [10]2 years ago

5 0

Step 1: Group the first two terms together and then the last two terms together. Step 2: Factor out a GCF from each separate binomial. Step 3: Factor out the common binomial. Note that if we multiply our answer out, we do get the original polynomial.

Elodia [21]2 years ago

4 0

Answer:

Group the first two terms together and then the last two terms together

Step-by-step

may not be right sorry if it isn't

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2 years ago

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3 years ago

Read 2 more answers

6. The mean number of hours of flying time for pilots at Continental Airlines is 37 hours per month (The Wall Street Journal, Fe

SashulF [63]

Answer:

The marginal error is 2.355

Confidence interval is $(34.645,\ 39.355)$

The LB and UB are 34.645 and 39.3555 respectively.

Step-by-step explanation:

Consider the provided information.

n = 49, s = 8.2 c = 95%and $\bar x=37$

Degree of freedom is: n-1 = 49-1 = 48.

$\alpha =\frac{1-c}{2}= \frac{1-0.95}{2}\\\alpha = \frac{0.05}{2}= 0.025$

From the table $t_{\alpha /2}=2.010635$

Marginal error is:

$E=t_{\alpha /2}\times \frac{s}{\sqrt{n}}$

$E=2.0106\times \frac{8.2}{\sqrt{49}}$

$E=2.0106\times \frac{8.2}{7}$

$E=2.0106\times 1.171$

$E=2.355$

Hence, the marginal error is 2.355.

Part (B)

95% confidence interval estimate

$(\bar x-E,\ \bar x+E)$

$(37-2.355,\ 37+2.355)$

$(34.645,\ 39.355)$

Thus, the LB and UB are 34.645 and 39.3555 respectively.

3 0

3 years ago

An empty box weighs 2 and 1/4 pounds. It is then filled with 16 and 2/3 pounds of fruit. What is the weight of the box when it i

Anettt [7]

Given that an empty box weighs 2 and 1/4 pounds.

Weight of the fruit is 16 and 2/3 pounds.

Weight of filled box means total weight of box and the fruit.

So we will add both values.

2 and 1/4 pounds+ 16 and 2/3 pounds

= 2 + 1/4 + 16 + 2/3 pounds

= 2 + 16 + 1/4 + 2/3 pounds

= 18 + 1/4 + 2/3 pounds

$= 18 + \frac{1}{4}+\frac{2}{3} \; pounds$

$= 18 + \frac{1*3}{4*3}+\frac{2*4}{3*4} \; pounds$

$= 18 + \frac{3}{12}+\frac{8}{12} \; pounds$

$= 18 + \frac{3+8}{12} \; pounds$

$= 18 + \frac{11}{12} \; pounds$

Hence final answer is 18 and 11/12 pounds.

8 0

3 years ago