SOMEONE, PLEASE HELP ME!!!

Mathematics

2 answers:

ozzi3 years ago

8 0

C I would say the answer C because 400 people is a little too much people to interview and if the people are by the tennis courts those answers would be bias because they would say yes

Furkat [3]3 years ago

3 0

Answer:

C. The manager visits a park and interviews people who were waiting to use the tennis courts.

Step-by-step explanation:

It's biased because the manager is clearly asking people only interested in tennis, not a clearly random sample.

You might be interested in

What is the variable in this expression?<br> 4b + 2b + 1⁄4

Shtirlitz [24]

Answer:

the variable is "b"

Step-by-step explanation:

7 0

2 years ago

Please someone help me and do not just write anything explain thank you . use the information provided to write the vertex form

notka56 [123]

Ok, so user says that it should be solve for vertex not vertex form
(x,y)
to find the vertex of
y=ax^2+bx+c

the x value of the vertex is -b/2a
the y value is found by plugging in the x value for the vertex back into the original equation and evaluating

y=-2x^2-12x-28
a=-2
b=-12

xvalue of vertex is -(-12)/(2*-2)=12/-4=-3

x value of vertex is -3

plug backin for x
y=-2x^2-12x-28
y=-2(-3)^2-12(-3)-28
y=-2(9)+36-28
y=-18+8
y=-10

yvalue is -10
x value is -3

vertex is (-3,-10)

5 0

3 years ago

a drilling team detected water 38 feet below the ground. if it took workers 8 days to be able to dig and pull up the water, how

xz_007 [3.2K]

Answer:

On average, the workers dig 4.75ft each day. Also, what x and y questions?

Step-by-step explanation:

Take $38/8=4.75$