3 years ago

Please help!! I just have two questions for you. Please and thank you!

Mathematics

1 answer:

adoni [48]3 years ago

7 0

Answer:

Question 1: 3x^2y(-4x^2-3xy+y^2)

Step-by-step explanation:

You might be interested in

If 14 of a number is 5 less than 23 of the same number, what is the number?

Shtirlitz [24]

Answer:

1.285714285711

Step-by-step explanation:

1.285714285711 x 14 = 18

5 0

3 years ago

Whats the gcf of 35 and 45

vovangra [49]

Well now, I don't know. Let's find out:

The factors of 35 are 1, 5, 7, and 35 .

The factors of 45 are 1, 3, 5, 9, 15, and 45 .

The common factors are: 1 and 5 .

The biggest one is 5 .

3 0

4 years ago

Consider the estimated equation from Example 4.3, which can be used to study the effects of skipping class on college GPA: 2 col

AlekseyPX

Answer:

Step-by-step explanation:

1) The confidence interval is calculated as the following

$CI = ( \bar x-1.96 \sigma ,\bar x=1.96 \sigmam)$

$= (0.412-1.96 \times 0.094, 0.412 = 1.96 \times 0.094)\\\\= (0.22776, 0.59624)$

Hence, the confidence interval is $0.22776 \leq \beta_G_P_A \leq 0.59624)$

11) Under two sid t-tailed test, the null hypothesis

$H_0; \beta_{GPA}=0.4$

Against the alternative hypothesis

$H_1 ; \beta _{GPA} \neq 0.4$

Under null hypothesis

$t = \frac{\hat \beta _1 - \beta _1}{Se( \beta _1)} \\\\ =\frac{0.412-0.4}{0.094} \\\\=0.12766$

The degree of freedom is n - 1 = 140

From the t - table at 5% level of significance under two - tail is 1.96

Since , calculated value is lowe than the tabulated value, we do not reject the null hypothesis.

3 0

4 years ago

Simplify 2.52 Answer choices A. 100 B. 20 C. 50 S. 49

Nata [24]

Answer:

Step-by-step explanation:

thats the answer

4 0

3 years ago

Chuck made $13.90 per hour, gets a 12% raise, and works 40 hours per week. Will he now earn at least $600 per week?

Andrew [12]

I might be wrong but I'm gonna go with

D is my answer

4 0

3 years ago