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lyudmila [28]
3 years ago
10

Does each situation describe a survey, an experiment, or an observational study?

Mathematics
1 answer:
Korvikt [17]3 years ago
3 0

Answer:

Experiment, observational study, survey

Step-by-step explanation:

The first one is an experiment.  The vet selects random samples and compares the effects of the injection to the nose drips.

The second one is an observational study.  The reaction of the dogs to the treats is being observed.

The third one is a survey.  The owners are given specific questions to answer.

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In 2011, the winner of the Peachtree Road Race ran the 7-kilometer event in 28 minutes. What is the runner's unit rate? If the r
Alex787 [66]

Answer:

unit rate= 4-kilometers/minute   expected time= 56 minutes

Step-by-step explanation:

14 kilometers x 4 kilo/minute = 56 minutes

7 0
3 years ago
5 1/8 + 5/6 + 5/12 as a fraction? I could be able to, but i suck at most things with fractions.
Daniel [21]
The answer to your question is 6 3/8. 
5 0
3 years ago
Use the zero product property to find the solutions to the equation 2x2 + x – 1 = 2.
FromTheMoon [43]

2 {x}^{2} + x - 1 = 2

Subtract sides -2

2 {x}^{2} + x - 1 - 2 = 2 - 2

2 {x}^{2} + x - 3 = 0

(x - 1)(2x + 3) = 0

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x - 1 = 0

x = 1

##############################

2x + 3 = 0

x =  -  \frac{3}{2}  \\

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3 0
4 years ago
Friendship’s soccer team purchased uniforms and equipment for a total of $912. The equipment cost $612 and the uniforms cost $25
earnstyle [38]

Answer:

12

Step-by-step explanation:

912 - 612 = 300

300 ÷ 25 = 12

5 0
3 years ago
Equal amounts of peanuts, cashews, and almonds are packed separately in bags. If 3 bags, one of each kind, cost a total of $3.00
Andru [333]

The cost of 1 bag of almond is $1.25

What is linear equation?

An equation in which the highest power of the variable is one is known as linear equation.

We can find the cost of 1 bag of almond as shown below:

Let the cost of 1 bag of peanut be $x

Let the cost of 1 bag of cashews be $y

Let the cost of 1 bag of almonds be $z

x + y + z=3      (1)

2x+2y=3.50

Dividing by 2

x + y=1.75

Putting in equation (1)

1.75+z=3

z=3-1.75

z=1.25

Hence, the cost of 1 bag of almond is $1.25

Learn more about linear equation here:

brainly.com/question/25127759

#SPJ4

4 0
2 years ago
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