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2 years ago

-39.85 + 34.8 - .375

Mathematics

2 answers:

Monica [59]2 years ago

8 0

I believe it is -5.425

djyliett [7]2 years ago

3 0

-39.85+34.8-.375 = -5.425

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is picking out some movies to rent, primarily interested in horror films and comedies. He has narrowed down his selections to 15

tigry1 [53]

Answer: 31,365

Step-by-step explanation:

Given : The number of horror films = 15

The number of comedies = 18

Then , the number of different combinations of 4 movies can he rent if he wants at least two comedies is given by :-

$^{18}C_2\times ^{15}C_2+^{18}C_3\times ^{15}C_1+^{18}C_4\times ^{15}C_0\\\\=\dfrac{18!}{2!(18-2)!}\times\dfrac{15!}{2!(15-2)!}+\dfrac{18!}{3!(18-3)!}\times\dfrac{15!}{1!(15-1)!}+\dfrac{18!}{4!(18-4)!}\times\dfrac{15!}{0!(15-0)!}\\\\=16065+12240+3060=31365$

Hence, the number of different combinations of 4 movies can he rent if he wants at least two comedies = 31,365

7 0

2 years ago

How to reduce 10/4 i don’t know how to

vredina [299]

answer: 10/4 reduced is 2.5/1 or 2.5.

work: what we are doing is trying to divide ten into groups of four. how many times does 10 fit into four? well, look at the multiples of four, 4, 8, 12... we can see that 8 fits into ten, but 12 doesn't. that means two whole fours can fit into ten (since 4 x 2 = 8) so we still have a 2 left over from the ten. since 2 is one half of four, we can fit in another .5. so, ten can be fit into 2.5 groups. hope this helps, have a great day!

3 0

2 years ago

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a nutrition major at wright state was studying the relationship between carbohydrates (x) and calories (y). for example, a servi

VLD [36.1K]

Answer:

The predicted calories would be 403 calories.

Step-by-step explanation:

We have a linear regression model relating y: calories with x: carbohydrates, which has a slope of 4.0 and a y-intercept of 3.0.

Then, the model equation is:

$y=4.0x+3.0$

With these model we can predict the calories values for any amount of carbohydrates, within the interval within which this model is valid.

If a new food is tested, and the number of carbohydrates (x) is 100, the predicted value will be:

$y(100)=4.0(100)+3.0=400+3=403$

The predicted calories would be 403 calories.

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2 years ago

Can you please send me an example for this question <br> (15 ÷ 5 + 6 + 9) x 4 x 2 + 7

Mkey [24]

The answer is 88 hope that helped

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3 years ago

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vazorg [7]

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9 months ago