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yawa3891 [41]
3 years ago
9

1. (2 points) The starship Enterprise just picked up a strange creature called a tribble.

Mathematics
1 answer:
koban [17]3 years ago
3 0

Answer:

21 tribbles on the 7th night

Step-by-step explanation:

every night 3 tribbles appear meaning that the tribbles spawn rate is y=3x

y= number of tribbles

x= number of nights

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If you have a jumbo pack of gum and 4 friends ask for 8 How much gum do you have left?
podryga [215]

Answer:

5

Step-by-step explanation:

37 - 4(8)

37 - 32

5

Hope this helps! May I please have brainliest? :)

4 0
3 years ago
Read 2 more answers
Which pair of functions are inverses of each other?
AlladinOne [14]

Answer:

The only pair of functions that are inverses of each other are the ones for option D.

Step-by-step explanation:

Two functions, f(x) and g(x), are inverses if and only if:

f( g(x) ) = x

g( f(x) ) = x

So we need to check that with all the given options.

A)

f(x) = \frac{x}{7} + 10 \\g(x) = 7*x - 10\\

then:

f(g(x)) = \frac{7*x + 10}{7} -10 = x + \frac{10}{7}  - 10

This is clearly different than x, so f(x) and g(x) are not inverses.

B)

f(x) = \sqrt[3]{11*x} \\g(x) = (\frac{x}{11} )^3

Then:

f(g(x)) = \sqrt[3]{11*(\frac{x}{11})^3 }  = \sqrt[3]{\frac{x^3}{11^2} } = \frac{x}{11^{2/3}}

This is different than x, so f(x) and g(x) are not inverses.

C)

f(x) = \frac{7}{x} -2 \\g(x) = \frac{x + 2}{7}

Then:

f(g(x)) = \frac{7}{\frac{x + 2}{7} } - 2 = \frac{7*7}{x + 2}  - 2

Obviously, this is different than x, so f(x) and g(x) are not inverses.

D)

f(x) = 9*x - 6\\g(x) = \frac{x + 6}{9}

Then:

f(g(x)) = 9*\frac{x + 6}{9}  - 6 = x + 6 - 6 = x\\g(f(x)) = \frac{(9*x - 6) + 6}{9}  = x

In this case we can conclude that f(x) and g(x) are inverses of each other.

5 0
3 years ago
Identify the focus, directrix, and axis of symmetry of 11x=y^2
ale4655 [162]

<u>Answers </u>

focus: (0, \frac{11}{4})

directrix: x = -\frac{11}{4}

AOS: y = 0

<u>Step-by-step explanation:</u>

11x = y²

 x = \frac{1}{11}y²

 x = \frac{1}{11}(y - 0)² + 0

Vertex: (0, 0)

Axis of symmetry: y = 0

Focus: \frac{1}{4p} = a     a = \frac{1}{11}

\frac{1}{4p} = \frac{1}{11}

4p = 11

 p = \frac{11}{4} so, focus is: (0, \frac{11}{4})

Directrix: -p = -\frac{11}{4} so, directrix is: x = -\frac{11}{4}




8 0
3 years ago
Can yall help me??? it would be awsome and i will give brainleist
Lelechka [254]

Answer:

Its eather 2a or -18

Step-by-step explanation:

I think its one of those two

Could i have a heart and branliest please.

7 0
3 years ago
Read 2 more answers
Last week, Sasha drank 3300 milliters of water on sunday. She drink 2 liters of water each day Monday through Friday she drank 2
Marrrta [24]

Answer:15000ml

2L=2000mlx5 days =10000+2700+3300=15000ml

Step-by-step explanation:

7 0
4 years ago
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