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3 years ago

Select the statements that is SOMETIMES TRUE.

Mathematics

1 answer:

allochka39001 [22]3 years ago

3 0

Answer:

A and B

Step-by-step explanation:

Here, we want to select the statements that are sometimes true

The correct answers are that;

1. A parallelogram has congruent diagonals

This is in the case of a rectangle

Whenever we have the diagonals of a parallelogram equal, then what we have is a rhombus

b. A rhombus is a parallelogram

In this case, we have that a rhombus is a kind of parallelogram with all four sides equal and the diagonal meet at 90 degrees

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3 years ago

How do you subtract an integer from another integer without using a number line

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3 years ago

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4 years ago

We have a study involving 5 different groups that each contain 9 participants (45 total). What two degrees of freedom would we r

vivado [14]

Answer:

Degree of freedoms F(4,40)

Step-by-step explanation:

Given:

There is a study which is involving 5 different groups that each contains 9 participants (totally 45)

The objective is to calculate the degree of freedoms

Formula used:

Numerator degree of freedom = k-1

denominator degree of freedom=N-K

Solution:

Numerator degree of freedom = k-1

denominator degree of freedom=N-K

Where,

K= number of groups = 5

N= total number of observations

which is given as follows,

N=45

Then,

Numerator degree of freedom = k-1

=5-1

Denominator degree of freedom = N-K

=45-5

=40

Therefore,

Degree of freedoms, F(4,40)

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3 years ago

Simplify: 3r+n²-r+5-2n+2

lutik1710 [3]

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=n2−2n+2r+7

7 0

3 years ago

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