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Shalnov [3]
3 years ago
7

Due tonight.. *no links*

Mathematics
1 answer:
Oliga [24]3 years ago
4 0

Answer:

Step-by-step explanation:

Sum of interior angles of a polygon formula:

180 (n - 2)

n represents the n-sided polygon

180 (20 - 2) = 3,240

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Plz answer quickly and right T^T first one gets brainliest
netineya [11]

Answer:

the 2nd answer

Step-by-step explanation:

it makes sense

4 0
3 years ago
An exam has two probability problems, 1 and 2. If 37% of the students solved problem 1 and 12% of the students solved both probl
yan [13]

Answer:

63%

Step-by-step explanation:

37% did not solve problem 2

100% - 37% = 63%

3 0
3 years ago
Which hypotheses are being tested by the chi-square test? The distribution of gender is different for the three different goals.
Karo-lina-s [1.5K]

Answer:

The null hypothesis is that the most important goal and gender are independent, and the alternative is that they are dependent.

Step-by-step explanation:

Chi Square test is used to test relationship between categorical (nominal) variables of a population. Eg : Testing men & women  for any attribute, lets say empathy

  • Null Hypothesis states that there is no relationship between  the attribute & categorical variable, they are independent.
  • Alternate Hypothesis states that there is relationship between the attribute & categorical variable, they are dependent.

Eg : Null hypothesis states that there is no difference of empathy level in men & women. Alternate Hypothesis states that there is difference of empathy level in men & women.

5 0
3 years ago
8 less than 4 times the number c is 20 what is the value of c
Brut [27]
Answer is 7


Work

4C-8= 20
+8
4C=28

28/4=7
8 0
3 years ago
In a closed system the momentum before a collision _ the momentum after a collision
Bas_tet [7]
It remain equal due to law of conservation of momentum
3 0
3 years ago
Read 2 more answers
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