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Nutka1998 [239]
4 years ago
5

Pls help pls ill give u a braniest if you help me

Mathematics
1 answer:
alexandr1967 [171]4 years ago
4 0

Answer:

B

Step-by-step explanation:

y = (x + 1)/x

xy = x + 1

xy - x = 1

x(y - 1) = 1

x = 1/(y - 1)

Interswitch variables

f^-1(x) = 1/(x - 1)

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Please help me with this question.
Sedbober [7]

Answer:

A)c=130/20

B)6.5 calories

Step-by-step explanation:

in one minute the calories burnt are

the equation would be

20 min.=130 calories

1 min.=?c

c=130÷20

part B=130÷20

=6.5 CALORIES

7 0
3 years ago
What is the product of 2x
Irina18 [472]

Answer:

2x

Step-by-step explanation:


2x if you don't know the value of x.

5 0
4 years ago
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A hard candy has a radius of 9 mm. The candy has a spherical soft center with a radius of 6 mm, with a hard shell surrounding it
goblinko [34]
Well you have to subtract the soft shell volume from the entire candy volume. Using the formula for the volume of a sphere, the whole candy is 4/3*729*3.14=3052.08
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7 0
3 years ago
Andrei has a glass tank. First, he wants to put in some marbles, each of which has a volume of 0.04liters. Then, he wants to fil
kipiarov [429]
Thats 35 litters because  
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8 0
3 years ago
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Luisa is planning a bridal shower for her best friend. At the party, she wants to serve 3 beverages, 3 appetizers, and 3 dessert
Vladimir79 [104]

Answer:

Luisa can pick the food and drinks to serve at the bridal shower in 15,615,600 different ways.

Step-by-step explanation:

Fundamental counting principle:

States that if there are p ways to do a thing, and q ways to do another thing, and these two things are independent, there are p*q ways to do both things.

Also

The order in which the food and drinks are chosen is not important, which means that the combinations formula is used to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

Beverages:

3 from a set of 15. So

B = C_{15,3} = \frac{15!}{3!12!} = 455

Appetizers:

3 from a set of 10. So

A = C_{10,3} = \frac{10!}{3!7!} = 120

Desserts:

3 from a set of 13. So

D = C_{13,3} = \frac{13!}{3!10!} = 286

How many different ways can Luisa pick the food and drinks to serve at the bridal shower?

By the fundamental counting principle, as beverages, appetizers and desserts are independent:

T = B*A*D = 455*120*286 = 15,615,600

Luisa can pick the food and drinks to serve at the bridal shower in 15,615,600 different ways.

4 0
4 years ago
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