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Ahat [919]
4 years ago
14

Please I really need help with this

Mathematics
1 answer:
Delvig [45]4 years ago
6 0

Answer:

Step-by-step explanation:

㏒ 3+㏒(x+2)=1

㏒3(x+2)=1

3(x+2)=10^1

3x+6=10

3x=10-6=4

x=4/3

so A

3.

log_{2}x+log_{2}(x+2)=3\\or~log_{2}[x(x+2)]=3\\x(x+2)=2^3\\x^2+2x-8=0\\x^2+4x-2x-8=0\\x(x+4)-2(x+4)=0\\(x+4)(x-2)=0\\x=2,-4\\x=-4 ~is~an~extraneous~solution.\\B

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Give the relevant proportion using correct notation.
nika2105 [10]

Answer:

For this case from the info given we have the estimated proportion of people who thinks that Children of illegal inmigrants should be able to attend public school

So then the value reported 45% or in fraction 0.45 represent the sample proportion fo interest.

\hat p =\frac{X}{n}=0.45

And this value was calculated with a sample of n =1000 people.

And X for this case is 450, because 0.45*1000=450

The real interest is on the population proportion p of people who thinks that Children of illegal inmigrants should be able to attend public school

Step-by-step explanation:

Assuming the following question : "Give the relevant proportion using correct notation. Your answer should be an expression composed of symbols: A recent headline states that 45% Think Children of illegal inmigrants Should Be Able to Attend Public School. The report gives the results of a survey of 1000 randomly selected likely voters in the US."

For this case from the info given we have the estimated proportion of people who thinks that Children of illegal inmigrants should be able to attend public school

So then the value reported 45% or in fraction 0.45 represent the sample proportion fo interest.

\hat p =\frac{X}{n}=0.45

And this value was calculated with a sample of n =1000 people.

And X for this case is 450, because 0.45*1000=450

The real interest is on the population proportion p of people who thinks that Children of illegal inmigrants should be able to attend public school

6 0
4 years ago
Maureen is making trail mix. She uses 8 ounces of granola and 2 ounces of raisins in her recipe. Fill in each statement. For eve
IrinaK [193]

Answer:

So for every ounce of granola she uses a quarter ounces of raisins so a quarter of 24 is 6

Answer:6

Step-by-step explanation:

4 0
3 years ago
Answer number 4 for slope puzzle
Norma-Jean [14]
Can you give me a picture to see it
7 0
3 years ago
The U.S. population in 1910 was 92 million people. In 1990, the population was 280 million. This could either be a linear or exp
HACTEHA [7]

Answer:

The linear model means that there is a uniform increase and in this case of US population from  92  million people in  1910  to  250  million people in  1990 .  

This means an increase of  250 − 92 = 158  million in  1990 -1910 = 80  years or   158 80 = 1.975  million per year and in  x  years it will become   92 + 1.975 x  million people. This can be graphed using the linear function  1.975 ( x − 1910 ) + 92 ,

graph{1.975(x-1910)+92 [1890, 2000, 85, 260]}

The exponential model means that there is a uniform proportional increase i.e. say  p %  every year and in this case of US population from  92  million people in  1910  to  250  million people in  1990 .  

This means an increase of  250 − 92 = 158  million in  1990 − 1910 = 80  years or  

p %  given by  92 ( 1 + p ) 80 = 250  which gives us  ( 1 +p ) 80 = 250 92  which simplifies to  p = ( 250 92 ) 0.0125 − 1 = 0.0125743  or  1.25743 % .  

This can be graphed as an exponential function  92 × 1.0125743 ( x − 1910 ) , which gives population in a year  y  and this appears as graph{92(1.0125743^(x-1910)) [1900, 2000, 85, 260]}

Step-by-step explanation:

Hope this helps

3 0
3 years ago
A scientist plans to study exotic birds in the rain forest. The helicopter
AlladinOne [14]

Answer:

2 days

Step-by-step explanation:

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We subtract the flight from the budget, which leaves us with $285

Next, we subtract 1 day from $285 which is $112

That leaves us with $173.

We then subtract one mire day ($112) which leaves us with $61

8 0
2 years ago
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