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lara [203]
3 years ago
13

What is the order of magnitude for the total weight of 5 cars that weigh 3,000 pounds each?

Mathematics
1 answer:
WINSTONCH [101]3 years ago
3 0
The answer is 15,000.
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Prove that 3(x+1)(x+7)-2x+5)^2 is never positive
lisov135 [29]

Answer:

Yes, 3(x+1)(x+7)-(2x+5)² is never positive

Step-by-step explanation:

So....

3(x+1)(x+7)-(2x+5)(2x+5)

=3(x²+8x+7)-(4x²+20x+25)

=3x²+24x+21-4x²-20x-25

=-x²+4x-4

5 0
3 years ago
This circle graph shows the results of a survey that asked 80 people which method of transportation they use to get to the city
Aleksandr-060686 [28]

Answer:

D)32

Step-by-step explanation:

Divide 80/100 x 40=32

7 0
2 years ago
Mykel is picking out some movies to rent, and he has narrowed down his selections to 66 foreign films, 33 children's movies, 66
uranmaximum [27]

Answer:

Mykel can make 2.79 x 10³² different combinations

Step-by-step explanation:

We can solve this problem using combination

The formula for combination is ⁿCₐ = \frac{n!}{(n - a)!a!}

where n = total number of choices available

a = number of items being chosen

The total movies Mykel wants is 99.

Taking out the sure 66 drama movies,

Mykel is left with 99 - 66 choices = 33 choices.

The total number of choices he is left with is 66 foreign + 33 children + 44 documentaries = 143 movies

Hence, our n = 143 movies

and a = 33 choices

Hence we do, ¹⁴⁴C₃₃ = \frac{143!}{(143 - 33)!33!} = \frac{143!}{110!33!} 2.79 x 10³² combinations

∴ Mykel can make 2.79 x 10³² different combinations.

7 0
3 years ago
Need help asap!!!!!!!!!
agasfer [191]

Answer:

4

Step-by-step explanation:

8 0
2 years ago
Candice bought 6 dozen eggs and broke 9 eggs how many eggs did she have left
Nadya [2.5K]

Answer:

63

Step-by-step explanation:

12x6=72

72-9=63

the answer is 63

3 0
2 years ago
Read 2 more answers
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