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choli [55]
3 years ago
10

PLEASE HELP ME , ALGEBRA 2

Mathematics
2 answers:
yKpoI14uk [10]3 years ago
7 0

i only know the answer for 17 which is b) -8 and 3 bc it’s saying to find the domain for that function which means u have to look at the denominator x^2+5x-24 and u have to factor it, so find what two numbers multiply to -24 but add up to 5 which is -3 and 8 so then it would be written as x-3=0 and x+8=0, solve for x and x is -3 and 8

nikitadnepr [17]3 years ago
3 0

Answer:

234567

Step-by-step explanation:

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A Gallup survey of 2322 adults (at least 18 years old) in the U.S. found that 408 of them have donated blood in the past two yea
Lelu [443]

Answer: aA 90% confidence interval for the population proportion of adults in the U.S. who have donated blood in the past two years = (0.163,0.189)

Step-by-step explanation:

Let p = population proportion of adults in the U.S. who have donated blood in the past two years.

Given: A Gallup survey of 2322 adults (at least 18 years old) in the U.S. found that 408 of them have donated blood in the past two years.

Sample size: n= 2322

Sample proportion q=\dfrac{408}{2322}=0.176

Critical z-value for 90% confidence level : z*=1.645

The confidence interval for population proportion:

q\pm z^*(\sqrt{\dfrac{q(1-q)}{n}})

A 90% confidence interval for the population proportion of adults in the U.S. who have donated blood in the past two years:

0.176\pm (1.645)(\sqrt{\dfrac{0.176(1-0.176)}{2322}})\\\\=0.176\pm (1.645)(0.0079)\\\\=(0.176\pm0.013)\\\\=(0.176-0.013,0.176+0.013))\\\\=(0.163,0.189)

Hence,

6 0
3 years ago
Help! what is the missing length?
matrenka [14]

Answer:

Hello! answer: 30

Step-by-step explanation:

32 × 30 = 960 HOPE THAT HELPS!

3 0
3 years ago
Read 2 more answers
A small Business earns a profit of $6500 in January and $17,500 in May. What is the rate of change in profit for this time perio
lukranit [14]
Answer:
Rate of change of profit for this period = $2750 / month
4 0
3 years ago
What is the height, in centimeters, of a rectangular prism that is 80 centimeters wide, 40 centimeters long, and has a volume of
Rainbow [258]

Answer:

The answer to your question is the letter E. 50

Step-by-step explanation:

Data

height = ?

Width = 80 cm

Length = 40 cm

Volume = 160000 cm³

Formula

Volume of a rectangular prism = Width x length x height

Substitution

                          160000 = 80 x 40 x height

Solve for height

                           height = 160000 / 80 x 40

Simplification

                           height = 160000/ 3200

Result

                           height = 50 cm              

4 0
3 years ago
Which equation has only 1 solution? A. c+2=c+2 B. c= -c+2 C. c+2=c-2 D. c-c=2 Please explain.
zhannawk [14.2K]

Answer:

B. c= -c+2

Step-by-step explanation:

A. ...................

  • c+2=c+2
  • c-c= 2-2
  • 0=0

It has infinitely many solutions as the equation is correct for any value of c.

B. ...................

  • c= -c+2
  • c+c= 2
  • 2c = 2
  • c = 2/2
  • c= 1

It has one solution only

C. ...................

  • c+2=c-2
  • c-c= -2 - 2
  • 0 = -4

It has no solution as this equation is incorrect

D. ...................

  • c-c=2
  • 0 = 2

It has no solution as this equation is incorrect

6 0
3 years ago
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