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Soloha48 [4]
3 years ago
12

A professor must randomly select 4 students to participate in a mock debate. There are 15 students in his class. In how many dif

ferent ways can these students be selected, if the order of selection does not matter? A. 445 B. 989 C. 32,760 D. 1,365
Mathematics
1 answer:
Vikki [24]3 years ago
7 0

For apex users, the answer is 1,365


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A local clothing shop is marking down all of its summer clothes by 75%. sarah would like to purchase a swimsuit that is original
trapecia [35]

a)   $80 - ($80 x 0.75)

  = $80 - $60

  = $20

b) $20 x 0.10

 = $2

c) $20 - $2

= $18

5 0
3 years ago
AB =<br>Round your answer to the nearest hundredth.<br>B<br>5<br>2<br>40​
Semenov [28]

Answer:

AB = 6.53

Step-by-step explanation:

cos theta = adjacent/ hypotenuse

cos 40 = 5/ AB

AB cos 40 = 5

AB = 5/ cos 40

AB = 6.527036447

Round to the nearest hundredth

AB = 6.53

4 0
3 years ago
Which explanation about figures is correct? * A. All rhombuses are parallelograms. Parallelograms have 2 pairs of parallel sides
bezimeni [28]

Answer:

The correct option is;

A. All rhombuses are parallelograms. Parallelograms have 2 pairs of parallel sides. Therefore, all rhombuses have 2 pairs of parallel sides

Step-by-step explanation:

A rhombus is a quadrilateral that has all 4 sides, it has equal opposite angles and perpendicular diagonals that bisect one another  as well as having a pair of opposite parallel sides making it a parallelogram

A rhombus is similar to a parallelogram which also has equal opposite and parallel sided and equal opposite angles and the diagonals of a parallelogram also bisect each other.

4 0
3 years ago
Special right triangles!!! Help
Archy [21]

Answer:

i think 40 meters

Step-by-step explanation:

i hope this helps

3 0
2 years ago
Read 2 more answers
To form 3 adjacent squares (as in the figure), 10 toothpicks are required. How many toothpicks are required to form 100 adjacent
Sonja [21]
<span>Let's say in general you want "n" adjacent squares. Each one needs a top, so that's n toothpicks. Each one needs a bottom, so that's another n toothpicks, and we're up to 2n total. You need one on the far left, and one on the far right, which brings us up to 2n + 2 toothpicks. Now we need to worry about the middle ones. But notice that you don't need n toothpicks for the interior because adjacent squares share. It turns out that you only need n-1. That brings us up to a grand total of 3n + 1 toothpicks, which would be 301 for n = 100.


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
</span>
7 0
2 years ago
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