All categories

2 years ago

Which of these would not produce a representative sample that determines the favorite

Mathematics

1 answer:

olasank [31]2 years ago

4 0

Answer:

1 the first one

Step-by-step explanation: its biased as you are asking people wearing football jerseys, hinting that they like football.

You might be interested in

I need help with problem number 3 if someone can help me with that

Flura [38]

Plug in x into the equation. Take x= -2 for example. Your equation is 2x-5, so instead of x, you put -2.
2(-2)-5 = -9
Your table is as follows:
(-2,-9)
(-1,-7)
(0,-5)
(1,-3)

3 0

2 years ago

A particle moves so that r(t) = ati + b sin atj. Show that the magnitude of the acceleration of the particle is proportional to

ValentinkaMS [17]

Answer:

Step-by-step explanation:

Given

Position of particle is $r(t)=at\hat{i}+b\sin (at)\hat{j}$

i.e. distance from x axis is $b\sin (at)---1$

Distance from y axis at

velocity is given by $v=\frac{\mathrm{d} r}{\mathrm{d} t}$

$v=a\hat{i}+ba\cos (at)\hat{j}$

Similarly acceleration is given by

$a=\frac{\mathrm{d} v}{\mathrm{d} t}$

$a=0\hat{i}-a^2b\sin (at)\hat{j}$

Magnitude of acceleration is $=\sqrt{(-a^2b\sin (at))^2}$

$=a^2b\sin (at)----2$

From 1 and 2 we can see that

Magnitude of acceleration is proportional to distance from x axis

$a\propto distance\ from\ x-axis$

5 0

2 years ago

Read 2 more answers

Phillip sells electronics and works on a commission basis. If his commission is 4%, and he sells $15,000 worth of electronics, w

Murrr4er [49]

His commission is simply: $15,000 x 0.04 = $600

8 0

2 years ago

Why does brainly give me the wrong answers to math problems?

k0ka [10]

Answer:

Because people are not so smart and answer wrong

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Which graph is the function. f(x)=x^3-3x^2-4x

Sedaia [141]

Answer:

See below description.

Step-by-step explanation:

The function $f(x) = x^3-3x^2-4x$ has the following characteristics:

Factors: $x(x+1)(x-4)$
Zeros/roots: x=0, x=-1, amd x=4
Positive leading coefficient
Graph starts down and curves up through -1 on the x-axis and back down to cross through 0. It curves back up again through 4 and finished off heading into positive infinity.
Its graph is the shape of a sideways S.
It has a relative maximum at 1.128 and relative minimum value of -13.128

6 0

2 years ago

Read 2 more answers