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Mekhanik [1.2K]
3 years ago
10

Out of 400 students sampled, 300 of them said that they hoped to have children someday. With 99.7% confidence, what is the appro

ximate percentage of the students in the population who hope to have children someday?
Mathematics
1 answer:
baherus [9]3 years ago
3 0
The answer is 75% I used a calculator and Pen and Pencil and 75% is correct I even double checked with multiplication. If you want to check for yourself to find the % in the future divide the 300 by 400 and you'll get your decimal move the decimal to the right 2 times and you'll have your percent.
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Which of the following is true about graphing polynomial​ functions?
igomit [66]
The answer is C, Ik this bc I already finished learning this

7 0
3 years ago
Helpppp with this math
Ilia_Sergeevich [38]

9514 1404 393

Answer:

  x = 8 1/3

Step-by-step explanation:

Put the known values into the equation and solve for x.

  f(x) = 3x -1

  24 = 3x -1 . . . . . use 24 for f(x)

  25 = 3x . . . . . . . add 1 to both sides

  25/3 = x . . . . . . divide both sides by 3

The input is x = 8 1/3.

4 0
2 years ago
The price of a geometrical box was Rs 400 last year. It has increased by 12% this year. What is the price now?
mestny [16]

Answer:

Rs 448

Step-by-step explanation:

400 × 1.12 = 448

this a 12 % increase

6 0
3 years ago
How do I find the values of these
skad [1K]
Since the triangles are similar, then 32 = x+7 those two angles are too
solve for "x"

now using proportions   \bf \cfrac{\textit{small triangle}}{\textit{large triangle}}\qquad \cfrac{JK}{18}=\cfrac{12}{12+10}

solve for JK

\bf \cfrac{\textit{small triangle}}{\textit{large triangle}}\qquad \cfrac{12}{12+10}=\cfrac{9}{9+KG}\implies 12(9+KG)=(22)9
\\\\\\
108+9KG=198

solve for KG

the scale factor of the perimeter of both triangles is just the same as the ratio of the sides, or \bf \cfrac{12}{12+10}

3 0
2 years ago
Griffins driveaway is 36 feet long. choose the word and number to complete the sentence correctly.to convert 36 feet to yards wh
never [62]
Divide 36 by 3 to convert from yards to feet. 
the yards to feet ratio is 3:1
5 0
2 years ago
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