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MariettaO [177]
3 years ago
12

What type of triangle had side lengths of 4,7 and 9

Mathematics
1 answer:
Nina [5.8K]3 years ago
4 0
A scaled triangle because they are all different lengths
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Один острый угол прямоугольного треугольника равен 30".
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2 years ago
Identify the response variable and whether the setting involves a single sample, a matched pairs, or two independent samples.
Helga [31]

Answer:

1. single sample design

2. matched pairs

3. two independent samples.

Step-by-step explanation:

the response variable is known as the dependent variable, it is the variable that the researcher is interested i finding. the response variable is the x variable that responds to changes in the independent variable.

1.

In this question the researcher has only one sample that is the specimen. that is the reference specimen that she obtained. Therefore it is a single sample design.

the response variable here is the measurement of concentration.

2. In this question we have two pairs, men and women. The researcher is interested in comparing attitudes as she interviews them. so response variable is attitude or behavior

3. this is a 2 independent sample design. The researcher is using two different methods to test and their average is being compared.

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2 years ago
Simplify the expression -2+6.45z-6+(-3.25z)
erik [133]

Answer:

-8 + 3.2z

Step-by-step explanation:

  1. when there is a "+" in front of an expression in parentheses, the expression remains the same
  2. -2 + 6.45z - 6 - 3.25z
  3. calculate the difference

-8 + 6.45z - 3.25z

collect like terms

-8 + 3.2z

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2 years ago
Line segment SU is dilated to create S'U' using the dilation rule DQ,2.5.
seropon [69]

Answer:

6 units on edg 2020

Step-by-step explanation:

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3 years ago
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John has a rectangular-shaped field whose length is 62.5 yards and width is 45.3 yards. The area of the field is ________ square
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2831.25 is the area and 215.6 is the perimeter

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