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sasho [114]
3 years ago
13

Twenty students in class A and 20 students in class B were asked how many hours they took to prepare for an exam.

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
6 0
The mean study time is less for class b then class a
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Jenny is either a hippie or an artist. But Jenny is certainly not a hippie. So it can be concluded that Jenny is an artist is th
Natasha2012 [34]

Answer:

Deductive

Step-by-step explanation:

Jenny is an artist.

This is a deductive argument because the inductive use the particular to get the general and the deductive use the general to get the particular.

4 0
3 years ago
Simplify:
kondaur [170]

Answer:

1. 3r - 2

2. 6x - 9

3. -10y + 29

4. 4x - 3

Step-by-step explanation:

i dont know how to explain. Sorry, i just learn about this today. I have the same exactly questions and here is the answer.

5 0
3 years ago
Which represents the number of lines of symmetry that are possessed by a regular n-gon?
anastassius [24]

Answer:

Option B. n

Step-by-step explanation:

we know that

A regular polygon is a convex polygon whose angles are all congruent.The number of lines of symmetry in a regular polygon is equal to the number of sides a regular polygon has.

therefore

the answer is option B. n

8 0
3 years ago
Santana went for a hike on the 21 mile South Boundary Trail. If she can hike2 miles
Katena32 [7]

Answer:

It will take santana 630 minutes or 10.5 hours to complete the 21 miles.

Step-by-step explanation:

<h3>\frac{2}{60\\} \frac{21}{y}  y is what you are trying to find multiple her miles by the number of minutes and then divided by how many miles in  60 min. </h3><h3 /><h3 /><h3> </h3>
5 0
3 years ago
Solve for x <br> Please help quick
LenaWriter [7]
A and b are perpendicular meaning that they intersect forming 90
b and c are parallel meaning that the intersection of c and a is also perpendicular

11x - 9 = 90 degrees
solve
11x - 9 = 90
add 9 to both sides
11x = 99
divide both sides by 11
x = 9

Hope this helps
3 0
3 years ago
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