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bixtya [17]
3 years ago
9

Marco is conducting an experiment on training certain breeds of dogs. He wants to know how long, on average, it would take to te

ach a Labrador to fetch an object. He gets a group of dogs to conduct his experiment. 5 of the dogs are Labradors and 3 of the dogs are Dalmatians. What is the population and sample in this experiment?
A) The population is all Labradors, and the sample is the 5 Labradors that Marco trained.
B) The sample is all Labradors, and the population is the 5 Labradors that Marco trained.
C) The population is all Labradors, and the sample is the 8 dogs that Marco trained.
D) The sample is all Labradors, and the population is the 8 dogs that Marco trained.
Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
6 0

Answer:

A

Step-by-step explanation:

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What are the factors of 2x2 + 3x – 54? Select two options.
Darya [45]

Hello there,

The equation that we have to factor is as follows:

2x² + 3x - 54

In order to factor this we first multiply (-54) by 2 and try to find two factor pairs that can be add up to 3.

For this we would use 12 * -9 which gives you -108 when multiplied and when added you would get 3.

                                           2x² + 12x - 9x -54

                                            2x(x + 6) -9(x +6)

                                              (2x - 9) (x + 6)

Now the factor pairs would be: (2x - 9)(x + 6)

Hope I helped,

Amna

6 0
4 years ago
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Help please i need answers fast if you help or try to help tysm *hearts*
Tanzania [10]

Answer:

C. 3rd one Fraction 10/24

Step-by-step explanation:

3/4 - 2/6 = 0.41 or = 10/24 or it could be equal to 5/12​ are 10/24, 15/36, 20/48 and 25/60 or as Decimal 0.41

Step-by-step explanation:

Hope This Helped

7 0
2 years ago
Find two possible factors for the estimated product 2,800
CaHeK987 [17]
28 x 100 and 280 x 10
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bixtya [17]

Answer:

2:2255 3:43

Step-by-step explanation:

Use the measurements to determine the other numbers

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2 years ago
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A square and a rectangle have the same perimeter. The square has a side length of 8x units. The rectangle has a length of (5x+8)
nevsk [136]

Answer:

The perimeter of both figures is equal to 64\ units

Step-by-step explanation:

step 1

we know that

The perimeter of a square is equal to

P=4b

where

b is the side length of the square

we have

b=8x\ units

substitute

P=4(8x)=32x\ units

step 2

we know that

The perimeter of a rectangle is equal to

P=2(L+W)

we have

L=(5x+8)\ units

W=(14)\ units

substitute

P=2(5x+8+14)=10x+44\ units

step 3

Equate both perimeters and solve for x

10x+44=32x

32x-10x=44

22x=44

x=2\ units

step 4

Find the perimeter of both

<em>square</em>

P=32x=32(2)=64\ units

<em>rectangle</em>

P=10x+44=10(2)+44=64\ units

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3 years ago
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