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Lelechka [254]
3 years ago
8

The number of accidents in a factory for each month is provided:

Mathematics
1 answer:
defon3 years ago
5 0

Answer:

Above problem we can solve using chi-square test of goodness of fit.

Therefore, 3rd option is correct.

Chi-square test for goodness of fit.

Dear student,

I am waiting for your feedback. I have given my 100% to solve your queries. If you satisfied with my answer then please please like this.

Thank You

Step-by-step explanation:

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The measure of a supplement of an angle is 40 more than two times the measure of the complement of the angle. find the measure o
saul85 [17]
 2 angle A and B are Complementary means that the sum of their measures is 90°. 

 2 angle A and B are Supplementary means that the sum of their measures is 180°. 


Thus, if the measure of angle A is x:

the measure of the supplement is 180°-x
the measure of the complement is 90°-x


"The measure of a supplement of an angle is 40 more than two times the measure of the complement of the angle. "

let the measure of the angle be x, then we have:

180°-x=40°+2(90°-x)

180°-x=40°+180°-2x

2x-x=40°

x=40°


Answer: 40°
6 0
3 years ago
The coordinates of point D are (7, 4) and the coordinates of point E are (1, −3) . What is the slope of the line that is perpend
Katarina [22]
The slope of a line is given by the change in y coordinates over the change in x coordinate.
The slope of line DE will be (4 - -3)/ (7-1) = 7/6
If M1 and M2 are slopes of two perpendicular lines at a point then
 M1× M2 = -1
 Thus, the slope of a perpendicular to line DE will be -6/7.
7 0
3 years ago
What’s the correct answer for this?
Yakvenalex [24]

Answer:

B

Step-by-step explanation:

According to the theorem, equal sides have equal angles opposite to them so AB AND AC are equal so x and y are also equal

7 0
3 years ago
I'm really confused about this question about Solving Systems by Elimination
velikii [3]

Answer:

x=10

y=2

Step-by-step explanation:

1)add the equations and find what x is.

x-y=8

+x+y=12

—————

2x=20

— —

2 2

x=10

3)fill in x for the second equation.

x+y=12

since x=10,replace x with 10.

10+y=12.

subtract 19 from both sides.

10+y=12

-10 -10

—————-

y=2

4 0
3 years ago
The perimeter of the triangle
Illusion [34]
Area=228 feet sqa.
Length=12 ft.
Breadth=(228/12) ft.
=19 ft.
Perimeter=2(12+19) ft.
=2×31 ft.
=62 ft.

HOPE IT HELPS UH!!☺️☺️
8 0
3 years ago
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