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yaroslaw [1]
4 years ago
5

I have gone mind blank. How do you find area and perimeter? For squares, triangles, and polygons.

Mathematics
1 answer:
Dahasolnce [82]4 years ago
4 0
Area:
Square- Multiply 2 sides together
Triangle- Multiply base by the height and divide by 2
Polyon- (I forgot how to find this sorry)

Perimeter:
Square- Add all 4 sides
Triangle-Add all 3 side (a+b+c)
Polygon- Add all the sides
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we have to evaluate the expression for the given value of the variable. i got -16 but it’s supposed to be 48. help??
Dovator [93]

\bf \cfrac{4(3h-6)}{1+h}\implies \stackrel{\textit{h=-2}}{\cfrac{4[3(-2)-6]}{1+(-2)}}\implies \cfrac{4[-6-6]}{1-2}\implies \cfrac{4[-12]}{-1} \\\\\\ \cfrac{-48}{-1}\implies 48

8 0
4 years ago
Read 2 more answers
A marketing research consultant hired by Coca-Cola is interested in determining if the proportion of customers who prefer Coke t
wlad13 [49]

Answer:

A one-tailed hypothesis will be used to perform the test.

Step-by-step explanation:

The purpose of the marketing research consultant hired by Coca-Cola is to determine whether the the proportion of customers who prefer Coke to other brands is over 50%.

The marketing research consultant selected a random sample of <em>n</em> = 200 customers. The sample proportion of people who favored Coca-Cola over other brands was 55%.

The marketing research consultant can perform a single proportion hypothesis test to determine whether greater than 50% of customers prefer Coca-Cola to other brands.

Since we need to determine whether the population percentage is greater than a null value, the hypothesis is not two-tailed.

The hypothesis can be defined as:

<em>H₀</em>: The proportion of people who favor Coca-Cola over other brands was 55%, i.e. <em>p</em> = 0.50.

<em>Hₐ</em>: The proportion of people who favor Coca-Cola over other brands was more than 55%, i.e. <em>p</em> > 0.50.

Thus, a one-tailed hypothesis will be used to perform the test.

6 0
3 years ago
Find the sum of the first 6 terms of the sequence: –3, 1, 5, 9, . . .A) 45B) 42C) 48D) 25
Leni [432]

SOLUTION

From the sequence give

–3, 1, 5, 9, . . .

The first term, a = -3

The common difference, d = 4 (gotten by adding 4 to the next term).

The number of terms required n = 6.

Formula for sum of an arithmetic sequence is given by

S_n=\frac{n}{2}\lbrack2a+(n-1)d\rbrack

Substituting these values into the equation above we have

\begin{gathered} S_n=\frac{n}{2}\lbrack2a+(n-1)d\rbrack \\ S_6=\frac{6}{2}\lbrack2\times-3+(6-1)4\rbrack \\ S_6=3\lbrack-6+(5)4\rbrack \\ S_6=3\lbrack-6+20\rbrack \\ S_6=3\lbrack14\rbrack \\ S_6=42 \end{gathered}

Hence, the answer is 42, option B

3 0
1 year ago
How do you explain that 0.9 is equivalent to 0.90?
Rama09 [41]

Answer:

it is equivalent because if you the zero to 0.9 then you will see that 0.9 and 0.90 are the same numbers.

Step-by-step explanation:

4 0
3 years ago
2. How tall is the flagpole? Use a proportion.
Reptile [31]

7.5 ft

I dont think so.. I think thats the answer

8 0
3 years ago
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