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irakobra [83]
3 years ago
7

you answer 95% of the quedtions coretly on a 40-question test.How many questios do you answer incorrectly?

Mathematics
2 answers:
mr Goodwill [35]3 years ago
5 0

Answer:

2

Step-by-step explanation:

proportions

bogdanovich [222]3 years ago
4 0
38.

38/40=.95 so 2answers incorrect is the answer
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You order fourteen burritos to go from a Mexican restaurant, six with hot peppers and eight without. However, the restaurant for
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Answer:

0.578

Step-by-step explanation:

If you pick three burritos at random, find the probability of the given event. (Round your answer to three decimal places.)

Given that there are 14 orders at the ratio by of:

6 with hot peppers

8 without hot peppers

At most two have hot peppers.

Binomial Problem with n = 3 ; p(hot) = 6/8

P(0<= x <=2) = 1 - P(x = 3)

= 1 - (6/8)^3

= 1 - ( 3/4 )^3

= 1 - ( 27/64 )^3

= 1- (37/64)

= 1 - 0.421875

= 0.578125

= 0.578

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3 years ago
In 2000, an invasive plant species covered 0.2% of an island. for the 5 years that followed, the area covered by the plant tripl
Elden [556K]

Answer:

The statement is correct

see the explanation

Step-by-step explanation:

we know that

The equation of a exponential growth function is equal to

y=a(1+r)^x

where

y  is the area covered by the plant in percentage

x is the time in years since 2000

r is the rate of change

a is the initial value

In this problem we have

r=200\%=200/100=2

a=0.2\%

substitute the values

y=0.2(1+2)^x

y=0.2(3)^x

In the year 2005

x=2005-2000=5\ years

substitute the value of x in the exponential function

y=0.2(3)^5=48.6\%

48.6% is about 50%

therefore

The statement is correct

5 0
3 years ago
If the Circumfernce of a circle is 25.1, please find: -The radius -The diameter -The area
dsp73

Answer:

Radius = 1.997

Diameter = 3.993

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3 years ago
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Answer:

not mutually exclusive

Step-by-step explanation:

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2 years ago
The National Honor Society at Central High School plans to sample a random group
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Answer:A

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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