MATHEMATICS HIGH SCHOOL

Tanisha is graphing the function f(x) = 25(3/5)^x. She begins by plotting the point (1, 15). Which could be the next point she plots on the graph?(2, 9)

(2, –10)

(2, 14 2/5)

(2, 5)

Answers

Answer 1
Answer: The answer is (2,9).

This is because we can increment X by 1, giving us X=2. We can then do:
f(2)=25•(3/5)^2
Which equals:
f(2)=25•(3^2/5^2) because (a/b)^c = a^c/b^c.

We can then calculate the fraction in a simplified form:
f(2)=25•(9/25)=225/25
which fully simplified gives us
f(2)=9/1=9
Answer 2
Answer:

Answer:

(2,9)

Step-by-step explanation:

Took the test

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A helicopter flies 312 miles against the wind in 2 hours; with the wind, it can fly 468 miles in the same amount of time. Find the speed of the helicopter in still air.

Answers

Answer:

78miles/hour

Step-by-step explanation:

If a helicopter flies 312 miles against the wind in 2 hours, the speed of the helicopter in air is expressed as shown;

Speed = Distance/Time

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What is the equation of the line that passes through the point (3,-2) and has a
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Answers

Answer:

y=-2x+4

Step-by-step explanation:

Simplify the expression 63 + 5(4 − 2)

Answers

Answer: 226

Step-by-step explanation:

6^3 + 5(4 - 2 )    

6^3 + 5 x 2

6 x 6 x 6 = 216

226 + 5 x 2

5 x 2 = 10

216 + 10 = 226

Answer:

The answer is 226

Step-by-step explanation:

4+6(7-m)=4 solve for m

Answers

4+6(7-m)=4
Opening the brackets;
4+42-6m=4
46-6m=4
Putting like terms together;
46-4=6m
42=6m
m=(42)/(6)
m=7
4-4+42-6m=0
42=6m
m=42/6
m=7

hope helped

Cant figure out please help

Answers

you just need to change the x to 2 ...

thus making the entire operation the answer is : 5 of 13 = 5/13
 

I hope I was helpfull
All we have to do as the other question is PLUG IN the given X!
f(x)= (3x^2-7)/(4x^2-3)
given x is 2

f(2)=(3(2)^2-7)/(4(2)^2-3)
 
     =(12-7)/(16-3)
     =(5)/(13)

Answer=(5)/(13)
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