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kolezko [41]
3 years ago
5

A cube has eight congruent faces. true false

Mathematics
1 answer:
bogdanovich [222]3 years ago
3 0
False, it has 6 congruent faces
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A physics exam consists of 9 multiple-choice questions and 6 open-ended problems in which all work must be shown. If an examinee
Mariana [72]

Answer:

The questions and problem can be chosen in 1260 ways.

Step-by-step explanation:

Given that, a physics exam consists of 6 open-ended problem and  9 multiple choice questions.

The order of choosing does not matter.

So,we use combination to find ways.

The ways to choose  6 multiple choice from 9 is= ^9C_6

                                                                              =\frac{9!}{6!(9-6)!}

                                                                              =84

The ways to 2 open-ended question from 6  is= ^6C_2

                                                                              =\frac{6!}{2!(6-2)!}

                                                                             =15

Since pick 6 multiple choice out of 9 and 2 open-ended question out of 6 both are independent we have multiply both to find required ways.

Total number of ways is =(84×15)

                                        =1260.

6 0
3 years ago
A ski patrol unit has seven members available for duty, and two of them are to be sent to rescue an injured skier. In how many w
ikadub [295]

Answer:

21

Step-by-step explanation:

7C2 = 21

6 0
3 years ago
Find the slope of a line that passes through the points (3, -1) and (-2, -5)
aleksklad [387]

Yo sup??

slope of a line=m

m=y2-y1/x2-x1

=-2-3/-5-(-1)

=1/4

Hope this helps

7 0
3 years ago
Please help! Asap. U good in math cuz I'm not! Lol.
makkiz [27]

Answer:

Step-by-step explanation:

3/4 can go into 3, 4 times.

1.5 can go into 9, 6 times

1 can go into 5, 5 times.

the smallest number here is 4, so she can make 4 batches.

4 0
3 years ago
Read 2 more answers
Mr Mushnik is 47, his twin brothers are 56 and his twin sisters are 59.
anastassius [24]

Answer:

362 is the answer

Step-by-step explanation:

4 0
3 years ago
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