Ask question

Ask question

All categories

3 years ago

7

Some students want to know if residents of their town are in favor of building a new school. Kevin surveys all of the residents

in his neighborhood.Identify Kevin’s type of sampling method.
systematic
convenience
self-select
random

1 answer:

Olegator [25]3 years ago

4 0

i think systematic

could you answer my latest question

You might be interested in

Yolanda is planning to put a pool in her backyard. The scaled model below gives the reduced measures for diameter and depth. The

atroni [7]

Answer:

C option: 6 feet

Step-by-step explanation:

Since Yolanda wants to keep the pool in proportion to the model, the ratio of diameter to depth of model and the pool will be same.

Let the depth of pool is x feet.

Ratio of Diameter to Depth of Model = Ratio of Diameter to Depth of pool

This means the depth of pool should be 6 feet if Yolanda wants to keep the pool in proportion to the model.

Plz give brainliest

4 0

3 years ago

Read 2 more answers

Yalll n-4 = 3n + 6 do me a favah

Otrada [13]

<h2>Answer:</h2><h2>n=-5</h2>

n

-

4

=

3

+

6

n-4=3n+6

n−4=3n+6

Solve

1

Add

4

4

4

to both sides of the equation

−

4

=

3

+

6

n-4=3n+6

n−4=3n+6

−

4

+

4

=

3

+

6

+

4

n-4+{\color{#c92786}{4}}=3n+6+{\color{#c92786}{4}}

n−4+4=3n+6+4

2

Simplify

3

Subtract

3

3n

3n

from both sides of the equation

4

Simplify

5

Divide both sides of the equation by the same term

6

Simplify

5 0

3 years ago

Read 2 more answers

1.) Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth .x squared minus 21 x equals n

Andrew [12]

Part 1
We are given $x^2-21x=-4x$ . This can be rewritten as $x^2-18x=0$ .
Therefore, a=1, b=-18, c=0.
Using the quadratic formula
$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}=\frac{-\left(-18\right)\pm \sqrt{\left(-18\right)^2-4\left(1\right)\left(0\right)}}{2\left(1\right)}$
$x=\frac{18\pm 18}{2}$

The values of x are
$x_1=\frac{18-18}{2}=0$
$x_2=\frac{18+18}{2}=18$

Part 2
Since the values of y change drastically for every equal interval of x, the function cannot be linear. Therefore, the kind of function that best suits the given pairs is a quadratic function.

Part 3.
The first equation is $y=x^2+2$ .
The second equation is $y=3x+20$ .

We have
$x^2+2=3x+20$
$x^2-3x-18=0$
Factoring, we have
$\left(x-6\right)\left(x+3\right)=0$
Equating both factors to zero.
$x_1-6=0\rightarrow x_1=6$
$x_2+3=0\rightarrow x_2=-3$

When the value of x is 6, the value of y is
$y=3\left(6\right)+20=38$

When the value of x is -3, the value of y is
$y=3\left(-3\right)+20=11$

Therefore, the solutions are (6,38) or (-3,11)

7 0

3 years ago

PLEASE HELP!! 25 POINTS B bisects segment AC. Find the value of m.

nexus9112 [7]

Answer: theres a answer key in the last slide & its 15 somehow...

6 0

1 year ago

How many hoursarea180minub

Dafna11 [192]

Solutions

1hr = 60 min

180 ÷ 60 = 3

<span>180 min = 3 hrs </span>

7 0

3 years ago

Read 2 more answers