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3 years ago

If the mDEF=128, determine its supplement and its complement, if it exists

Mathematics

1 answer:

Mrrafil [7]3 years ago

3 0

Answer:

The supplement would be 62,

There is no complement

Step-by-step explanation:

A Supplementary angle equals 180 degrees

A complementary angle equals 90 degrees

Since mDEF= 128, which is greater than 90 degrees there is no complement to it.

To figure out the supplement of DEF you have to subtract 128 from 180.

180 - 128 = 62

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Question 3

AveGali [126]

Answer:

750^2

Step-by-step explanation:

backtrack and find the diameter of circle A. A=πr, which means the diamater is about 159 1/11. three times the diameter will give 477 3/11, so the radius is 238 7/11. multiply it to 22/7 (π) then you get 750^2.

8 0

3 years ago

A person's home to work commute on a wintery morning involves traveling on Highway A, Highway B, and then Highway C. The person

SVEN [57.7K]

Answer:

Probability = 0.35

Step-by-step explanation:

Given :-

Probability (Highway A Icy) = 0.1
Probability (Highway B Icy) = 0.15
Probability (Highway C icy) = 0.15

So :-

Probability (Highway A not icy) = 1 - 0.1 = 0.9
Probability (Highway B not icy) = 1 - 0.15 = 0.85
Probability (Highway C not icy) = 1 - 0.15 = 0.85

Probability of person not getting to work timely

= Probability [Even one of the highway A, B or C is icy]

= 1 - Probability [None of Highway A, B, C is icy]

Since these are independent events, So :-

= Prob. [Highway A not icy & Highway B not icy & Highway C not icy]

= 1 - ( 0.9 x 0.85 x 0.85)

= 1 - 0.65

= 0.35

5 0

3 years ago

No chi-square The principal in Exercise 7 also

larisa [96]

The random sample of the students is an illustration of sampling

The chi-square test for goodness of fit is inappropriate because the variable under study is not categorical.

<h3>How to determine the reason chi square is not appropriate?</h3>

The dataset is given as:

Monday 34

Tuesday 29

Wednesday 32

Thursday 28

Friday 19

The variable of the above dataset is a not a categorical dataset.

One of the conditions of the chi-square test for goodness of fit test is that the variable under study must be categorical.

Hence, the chi-square test for goodness of fit is inappropriate because the variable under study is not categorical.

Read more about chi-square test at:

brainly.com/question/19959558

8 0

2 years ago

Kite 4 х 110 a 100 x = y = a = у 12 b

Stella [2.4K]

Answer:

X=4.3

Y=6.9

a=112

b=38.34

8 0

3 years ago

Solve for c: c=5 5/6 x 2

Marina86 [1]

Hi there!

c=11 2/3

1.Convert 5 5/6 into mixed number:

$5 \frac{5}{6}=\frac{35}{6}$

2.Convert 2 into fraction term:

$2=\frac{2}{1}$

3.Convert both fraction into same denominator:

$\frac{35}{6}=\frac{35}{6}$

$\frac{2}{1}=\frac{12}{6}$

4.Multiply the two terms:

$\frac{35}{6}$ · $\frac{12}{6}=\frac{70}{6}$

5.Simplfly the fraction term:

$\frac{70}{6}=\frac{35}{3}$

$\frac{35}{3}=11 \frac{2}{3}$

Therefore, c=11 2/3.

4 0

3 years ago