All categories

3 years ago

Need to find area, perimeter please

Mathematics

1 answer:

Molodets [167]3 years ago

4 0

To find area you do length x width. To find perimeter you do length + width.

You might be interested in

If f(x) = x2, and g(x) = x – 1, then f(g(x)) = [? ]x2+[?]+ [?]

Basile [38]

Answer:

f(g(x)) = x² - 2x + 1

Step-by-step explanation:

To find f(g(x)), substitute x = g(x) into f(x) , that is

f(g(x))

= f(x - 1)

= (x - 1)² ← expand using FOIL

= x² - 2x + 1

5 0

3 years ago

9.50 One way to evaluate the effectiveness of a teaching assistant is to examine the scores achieved by his or her students on a

EleoNora [17]

Answer:

Step-by-step explanation:

Given that a professor sets a standard examination at the end of each semester for all sections of a course. The variance of the scores on this test is typically very close to 300.

$H_0: s^2 = 300\\H_a: s^2 \neq 300$

(Two tailed test for variance )

Sample variance =480

We can use chi square test for testing of hypothesis

Test statistic = $\frac{(n-1)s^2}{\sigma^2} \\=62.4$

p value = 0.0100

Since p <0.05 our significance level, we reject H0.

The sample variance cannot be claimed as equal to 300.

5 0

3 years ago

Solve. 4 - 2x = 10 A)-7 B)-3 C)0 D)3

mars1129 [50]

Answer: The answer should be B) -3. To solve the equation you have to rewrite the equation.

4 0

3 years ago

The consumer price index is

nikklg [1K]

Answer:

A tool to measure the changes in the prices of weighted average market basket of goods and services purchased by consumers, usually households.

6 0

3 years ago

Please help

taurus [48]

Answer:

Slope = 2

Step-by-step explanation:

(1,3) and (3,7)

m = (7-3)/3-1)

= 4/2

= 2

5 0

2 years ago