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3 years ago

Which function describes this table of values? x:10,5,0,-5 y:8,4,0,-4

Mathematics

2 answers:

victus00 [196]3 years ago

5 0

Answer: it’s y=5/4x

Step-by-step explanation:

katrin [286]3 years ago

3 0

Answer:

First option

Step-by-step explanation:

You can plug in values and verify.

Please help me by marking me brainliest. I'm really close :)

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The number of camera phones shipped globally can be modeled by the function y=1.28e^1.31x where x is the number of years since 1

erik [133]

The first thing you should know for this case is how many years there are from 1997 to 2014.
The number of years is:
x = 2014-1997 = 17
Then, you must replace this value in the given equation:
y = 1.28e ^ 1.31x
y = 1.28 * e ^ (1.31 * (17))
y = 6011018736
answer:
the number of camera phones shipped in millions in 2014 is
y = 6011018736

8 0

3 years ago

Christine has always been weak in mathematics. Based on her performance prior to the final exam in Calculus, there is a 40% chan

azamat

Answer:

There are a 25% probability that Christine fails the course.

Step-by-step explanation:

We have these following probabilities:

A 50% probability that Christine finds a tutor.

With a tutor, she has a 10% probability of failling.

A 50% probability that Christine does not find a tutor.

Without a tutor, she has a 40% probability of failing.

Probability that she fails:

10% of 50%(fail with a tutor) plus 40% of 50%(fail without a tutor). So

$P = 0.1*0.5 + 0.4*0.5 = 0.25$

There are a 25% probability that Christine fails the course.

6 0

3 years ago

-3x+10=21 solve for x

Fed [463]

Answer:

Step-by-step explanation:

-3x+10=21

-3x=21-10

-3x=11

x=11/-3

x=- 11/3

8 0

3 years ago

A map scales designates 1"=50 miles. If the distance between two towns on the map 2.75 inches, how many miles must you drive to

RSB [31]

You would multiply 2.75 by 50, which is 137.5 miles

6 0

3 years ago

Read 2 more answers

Can you help me it’s. 2 part question I can only add one picture at a time

snow_lady [41]

Recall the definition of the composition between two functions:

$(f\circ g)(x)=f(g(x))$

Similarly, but not always the same:

$(g\circ f)(x)=g(f(x))$

Use the rules of correspondence of the functions f and g to find the compositions:

$\begin{gathered} f(x)=6x-10 \\ g(x)=8-4x \end{gathered}$

Then:

$\begin{gathered} (f\circ g)(x)=f(g(x)) \\ =6\cdot g(x)-10 \\ =6(8-4x)-10 \\ =6\cdot8-6\cdot4x-10 \\ =48-24x-10 \\ =-24x+38 \\ \\ \therefore(f\circ g)(x)=-24x+38 \end{gathered}$

On the other hand:

$\begin{gathered} (g\circ f)(x)=g(f(x)) \\ =8-4\cdot f(x) \\ =8-4(6x-10) \\ =8-4\cdot6x-4\cdot-10 \\ =8-24x+40 \\ =-24x+48 \\ \\ \therefore(g\circ f)(x)=-24x+48 \end{gathered}$

Therefore, the answers are:

$\begin{gathered} (f\circ g)(x)=-24x+38 \\ (g\circ f)(x)=-24x+48 \end{gathered}$

8 0

1 year ago