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Lerok [7]
3 years ago
14

Use the net as an aid

Mathematics
1 answer:
miss Akunina [59]3 years ago
3 0

Answer:

hi

Step-by-step explanation:

You might be interested in
Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 99 people
sertanlavr [38]

Answer:

The probability of getting someone in the 18-21 age bracket or someone who agreed to respond = 0.365

Step-by-step explanation:

The counts are as follows  

Age Group  No of people contacted No of refusals      Total  

18-21               88                                  8                       96

22-29              240                                  42                       282

Total              328                                  50                       378

 

The probability of getting some one in the age bracket of 18-21 or some one who refused to respond is

= \frac{96}{378} + \frac{50}{378} - \frac{8}{378} \\= \frac{96+50-8}{378} \\= \frac{138}{378} \\= 0.365

8 0
3 years ago
Find each percent change 40 to 2
Nostrana [21]

The question we need to ask is what percent of 2 is 40?

40 is 20 times 2 so 20 would be 2,000%

We need to subract 100% from any percent change:

2,000% - 100% = 1,900%

ANSWER: 1,900%

3 0
2 years ago
X^2-5x=14 solve for x
elixir [45]

Answer:

x=7, -2.

Step-by-step explanation:

x^2-5x=14

x^2-5x-14=0

factor out the trinomial,

(x-7)(x+2)=0

zero property,

x-7=0, x+2=0,

x=0+7=7,

x=0-2=-2

8 0
2 years ago
Read 2 more answers
What is 47 and 2/3 as a decimal
Phoenix [80]
47 is 0.47 and 2/3 is 0.66
4 0
3 years ago
Look at the right triangle in the diagram
Ivahew [28]

Answer:

I would say C

Step-by-step explanation:

7 0
2 years ago
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