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Kaylis [27]
2 years ago
12

Identify the sampling technique used for the following study.

Mathematics
1 answer:
ivanzaharov [21]2 years ago
4 0

oui oui oui oui

can i get a

oui oui oui oui

oui oui oui oui

can i get a

oui oui oui oui

oui oui oui oui

can i get a

oui oui oui oui

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Suppose a horse is galloping at 19 mph toward a clown, and the clown is racing toward the horse on an ATV which can sustain a sp
egoroff_w [7]

Answer:

It will take 1.47 hours for the horse and clown to collide

Step-by-step explanation:

They are driving toward each other, in opposite directions.

So to find their speed of approximation, we add their speeds.

19 mph + 15 mph = 34 mph.

This means that each hour, they are 34 miles closer.

How long it takes for them to find each other if they are 50 miles apart?

1 hour - 34 miles

x hours - 50 miles

34x = 50

x = \frac{50}{34}

x = 1.47

It will take 1.47 hours for the horse and clown to collide

7 0
3 years ago
What are the coordinates of the vertex of the parabola described by the equation below? y=7(x+5)^2-4
Ipatiy [6.2K]

Answer:

y= 7(x+5)^2 -4

The vertex form for a parabola is given by this expression:

y = a(x-h)^2 +k

By direct comparison we see that for this case:

a = 7, h = -5 and k=-4

And we know from the general expression that the vertex is:

V= (h,k)

So then the vertex for this case is:

V= (-5,-4)

Step-by-step explanation:

For this case we have the following function:

y= 7(x+5)^2 -4

And we need to take in count that the vertex form for a parabola is given by this expression:

y = a(x-h)^2 +k

By direct comparison we see that for this case:

a = 7, h = -5 and k=-4

And we know from the general expression that the vertex is:

V= (h,k)

So then the vertex for this case is:

V= (-5,-4)

4 0
2 years ago
Select all the names for a in the expression.
Lunna [17]

Answer:

In this equation "a" is a variable.

Step-by-step explanation:

A variable is a term used that does not necessary have a value attached to it. Instead any value can be input in for it.

5 0
2 years ago
Read 2 more answers
I need help with this question its due soon
slavikrds [6]

Step-by-step explanation:

(-0.4)×(-2)+(-0.4)×(-9)

formula for distributive property is if

A(B+C)

=A×B + A×C

4 0
2 years ago
What is x? -3(2x-7)+5=2x-9
vitfil [10]

Answer:

x=4.375

Step-by-step explanation:

-3(2x-7)+5=2x-9

-6x+21+5=2x-9

-6x+26=2x-9

-6x-2x+26=2x-2x-9

-8x+26=-9

-8x+26-26=-9-26

-8x=-35

-8x/-8=-35/-8

x=4.375

4 0
3 years ago
Read 2 more answers
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