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svp [43]
3 years ago
10

You want to estimate the number of students in your school who support extra funding for the history club. You survey every nint

h student who enters the
school.
Determine whether the sample is based or unbiased
Mathematics
1 answer:
Lyrx [107]3 years ago
4 0

Answer:

unbiased

Step-by-step explanation:

it would be biased if you lets say survey the history club kids

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Solve Quadratic Equations by Factoring:
mr_godi [17]

Answer:

  1. x = 0 or 1
  2. x = ±i/4
  3. x = -5 (twice)

Step-by-step explanation:

Factoring is aided by having the equations in standard form. The first step in each case is to put the equations in that form. The zero product property tells you that a product is zero when a factor is zero. The solutions are the values of x that make the factors zero.

1. x^2 -x = 0

  x(x -1) = 0 . . . . . x = 0 or 1

__

2. 16x^2 +1 = 0

This is the "difference of squares" ...

  (4x)^2 - (i)^2 = 0

  (4x -i)(4x +i) = 0 . . . . . x = -i/4 or i/4 (zeros are complex)

__

3. x^2 +10x +25 = 0

  (x +5)(x +5) = 0 . . . . . x = -5 with multiplicity 2

5 0
3 years ago
A construction crew has just finished building a road. the road is 8 kilometers long. if the crew worked for 335 days, how many
elena-s [515]
8/335 km/day
hope this helps
7 0
3 years ago
The pizza parlor is running a special on 3-toppings pizzas. The topping choices include pepperoni, sausage, bacon mushrooms, oni
choli [55]

Answer:

Well there are 6 toppings. For one person to select sausage, it is  \frac{1}{6} . For two people, multiply them together and the probability is  \frac{1}{36}

4 0
3 years ago
What is the value of x?enter your answer in the box .
Katarina [22]

By pythagoras Theorem.

x² +12²=13²

=>x² +144 =169

=>x² =169-144=25

=>x=√25=5 unit.

Hence x=5 is your answer.

Hope it helps...

Regards,

Leukonov/Olegion.

4 0
3 years ago
If you place a 29-foot ladder against the top of a building and the bottom of the ladder is 16 feet from the bottom of the build
Anettt [7]

Answer:

24.2 feet.

Step-by-step explanation:

pythagorean theorem will solve this so A^2 + B^2=C^2

we have a and c so you do c -a and square root it to get your answer

4 0
3 years ago
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