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nika2105 [10]
4 years ago
15

Answer these and i’ll give brainliest!

Mathematics
1 answer:
Rina8888 [55]4 years ago
5 0

Answer:

4=symmetrical; 4 lines 5=not symmetrical 6=symetrical; 1 line 7=symetrical; 5 lines

8: Isos. trap.=1

Rectangle=2 lines

Square= 8 lines

Rhombus=4 lines

Parallelogram= 0 lines

9 a: A regular pentagon has 5 lines of symetry

9b: a regular hexigon has 12 lines if symetry.

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What is 4 2/3 + 2 1/5 + 3 1/2
Elena L [17]

Answer:

10\frac{11}{30}

Step-by-step explanation:

Convert the mixed fractions into improper fractions.

14/3+11/5+7/2

Add the values.

311/30

10\frac{11}{30}

=10.36666666667

6 0
4 years ago
A USA Today/Gallup poll asked a group of unemployed and underemployed Americans if they have had major problems in their relatio
Tems11 [23]

Answer:

Null hypothesis: <em>H₀</em>: <em>p</em>₁ = <em>p</em>₂.

Alternate hypothesis: <em>H₀</em>: <em>p</em>₁ ≠ <em>p</em>₂.

Step-by-step explanation:

A statistical experiment is conducted to determine whether the proportions of unemployed and underemployed people who had relationship problems were different.

Let <em>p</em>₁ = the proportion of unemployed people who had relationship problems and <em>p</em>₂ = the proportion of underemployed people who had relationship problems.

A hypothesis test for difference between proportions, can be conducted to determine if there is any difference between the two population proportions.

Use a <em>z</em>-test for the test statistic.

The hypothesis test is:

<em>H₀</em>: There is no difference between the proportions of unemployed and underemployed people who had relationship problems, i.e. <em>p</em>₁ = <em>p</em>₂.

<em>Hₐ</em>: There is a significant difference between the proportions of unemployed and underemployed people who had relationship problems, i.e. <em>p</em>₁ ≠ <em>p</em>₂.

5 0
4 years ago
Read 2 more answers
The number is 9,18,27,36,45 what is the question?
astraxan [27]
The question is to find to rule
9 +9 =18
18+9=27
27+9=36
36+9=45
3 0
3 years ago
Just determine whether its positive or negative please
NeX [460]
9. negative 10. negative 11. negative 12.negative 13.negative 14. positive 15. positive 16. negative 17. negative 18. positive
3 0
3 years ago
" Explain how you used the bar model in Exercise 2 to solve the problem "
3241004551 [841]
You have to add exercise 2 so people can answer it.
3 0
3 years ago
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