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2 years ago

Plz help I need it!!!!!!!!!!!!

Mathematics

1 answer:

AlekseyPX2 years ago

8 0

Answer:

114°

Step-by-step explanation:

$? = \frac{1}{2} (53 \degree + 175 \degree) \\ \\ ? = \frac{1}{2} \times 228 \degree\\ \\ ? = 114 \degree$

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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)

7 0

2 years ago

What is AE? Enter your answer in the box?

Nataly [62]

Answer:

AE = 18 units

Step-by-step explanation:

Δ AEB and Δ DEC are similar , then corresponding sides are in proportion, that is

$\frac{AE}{DE}$ = $\frac{AB}{DC}$ , substitute values

$\frac{2x+4}{x+8}$ = $\frac{12}{10}$ ( cross- multiply )

10(2x + 4) = 12(x + 8) ← distribute parenthesis on both sides

20x + 40 = 12x + 96 ( subtract 12x from both sides )

8x + 40 = 96 ( subtract 40 from both sides )

8x = 56 ( divide both sides by 8 )

x = 7

Then

AE = 2x + 4 = 2(7) + 4 = 14 + 4 = 18 units

5 0

2 years ago

How to multiple 90km/h x 1h 30min

sveta [45]

90 km/ h x 1.5 h = 135 km

7 0

2 years ago

What is the area of a circle with a radius of 42 in use 3.14 for pi

Vanyuwa [196]

The right answer is 5538.96 units^2

please see the attached picture for full solution 

Hope it helps

Good luck on your assignment

6 0

2 years ago

Read 2 more answers

Plz help for 13 a and b

Marta_Voda [28]

A) to find the difference you have to subtract one from the other (53-(-41)=91)

b) 15

6 0

3 years ago

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