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lions [1.4K]
2 years ago
12

A random sample of 1028 adults in a certain large country was asked​ "Do you pretty much think televisions are a necessity or a

luxury you could do​ without?" Of the 1028 adults​ surveyed, 521 indicated that televisions are a luxury they could do without.
Mathematics
1 answer:
Tems11 [23]2 years ago
7 0

Answer:

lol

Step-by-step explanation:

what is the question

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Store A
olga2289 [7]

Answer:

72

Step-by-step explanation:

3 0
3 years ago
Select the correct answer.
sp2606 [1]

The perimeter of the pentagon with apothem of 5cm is 28.87cm

<h3>How to calculate the perimeter of a pentagon</h3>

The sum of all the external sides of the pentagon is its perimeter.

First we need to calculate the half of one of its sides using the SOH CAH TOA

tan 30 = x/5

x = 5 tan 30

x = 2.89

One of the sides = 2(2.89) = 5.77 cm

Perimeter of th pentagon  = 5(5.77) = 28.87

Hence the perimeter of the pentagon with apothem of 5cm is 28.87cm

Learn more on perimeter of pentagon here: brainly.com/question/11484726

6 0
1 year ago
Ryan's dog weighs 55 pounds, and Mark's dog weighs p pounds. Which expression shows their combined weight?
atroni [7]
55 + p = Combined weight
8 0
2 years ago
Read 2 more answers
How do you use the halving and doubling strategy to find 28*50?
Pavel [41]
The double of 50 is 100 which means you would do 28*100=2800 now half of the answer is 2800/2=1400 which makes 1,400 your answer 
3 0
2 years ago
Find all solutions to the equation in the interval [0, 2π). cos 4x - cos 2x = 0
masya89 [10]

Answer:

See below in bold.

Step-by-step explanation:

cos 4x = 2cos^2 2x - 1 =  2 (2 cos^2 x - 1)^2 - 1

and cos 2x = 2 cos^2 x - 1 so we have:

2 ( 2 cos^2 x - 1)^2 - 1 - (2cos^2 x  - 1) = 0

2 ( 2 cos^2 x - 1)^2 - 2 cos^2 x = 0

(2 cos^2 x - 1)^2 -  cos^2 x = 0

Let c = cos^2 x, then:

(2c - 1)^2 - c = 0

4c^2 - 4c + 1 - c = 0

4c^2 - 5c + 1 = 0

c = 0.25, 1

cos^2 x  = 0.25 gives cos x = +/- 0.5

and cos^2 x = 1 gives cos x = +/- 1.

So for  x = +/- 1 , x = 0, π.

For cos x = +/- 0.5, x = π/3, 2π/3, 4π3,5π/3.

7 0
3 years ago
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