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dalvyx [7]
3 years ago
8

Exponential Function assignments help please! ❤️

Mathematics
1 answer:
Sladkaya [172]3 years ago
7 0

Answer:

Initial value is 4,000

Growth is -480

Step-by-step explanation:

Initial value is the value that you started with: hence 4000.

Growth would be how much it grows, it grows downward because it is 12% down. Next you need to find what 13% of 4000 is 100%-13%=88% .88*4000=480 or 13% of 4000.

Hope this helps

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Can a function be both even and odd? use algebra to find the answer.
Evgesh-ka [11]

Answer:

Im not sure exactly what you want the function to be. Because it can be any number. only the signs would change it

Step-by-step explanation:

okay so lets try this then..

if f(x) is an even number...let say 2

then f(-2)= 2x²+x+6

then it would be 2(-2²)+(-2)+6......-4

https://www.symbolab.com/solver/step-by-step/F%5Cleft(x%5Cright)%3D-F%5Cleft(x%5Cright)

5 0
3 years ago
On a Monday, a meteorologist says that there is a 30% chance of rain. What is the probability that it will rain on Monday?
Wittaler [7]

Answer:

70%

Step-by-step explanation:

ehhh dont know, my teacher told me

3 0
3 years ago
A sculptor needs to lift a piece of marble.
Dennis_Churaev [7]

Answer:

486kg

Step-by-step explanation:

density = mass / volume

2.7 = m / (100 x 60 x 30)   **** Note the conversion to cm as the density is given in g/cm.

2.7 = m / 180000

m = 486000g

Now convert to mass in kg:

486000 g x 1 kg / 1000 g = 486kg

4 0
3 years ago
Read 2 more answers
Help please it’s due tomorrow.
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What so you need to know?
8 0
3 years ago
Find the zeros the polynomial fx=2x^2 +9x-5<br>pls help with steps ​
lara [203]

Answer:

-5 ; 1/2

Step-by-step explanation:

<u>GIVEN :-</u>

  • A quadratic polynomial f(x) = 2x² + 9x - 5

<u>TO FIND :-</u>

  • Zeroes of f(x) = 2x² + 9x - 5

<u>GENERAL CONCEPTS TO BE USED IN THIS QUESTION :-</u>

Lets say there's a quadratic polynomial f(x) = ax² + bx + c , whose factors are (x - α) & (x - β). To find the values of x for which f(x) will be zero , equate the factors of f(x) with 0.

⇒ (x - α) = 0 & (x - β) = 0

⇒ x = α & x = β

Hence, it can be concluded that if (x - α) & (x - β) are factors of f(x) , then α & β are the roots of f(x).

<u>SOLUTION :-</u>

Factorise f(x) = 2x² + 9x - 5.

  • Split its middle term.

=> 2x^2 + 10x - x - 5

  • Take '2x' common from first two terms & '-1' from last two terms.

=> 2x(x + 5) - 1(x + 5)

  • Take (x + 5) common from the whole expression.

=> (x + 5)(2x - 1)

So , the factors of f(x) are (x + 5) & (2x - 1). Now equate the factors with zero.

⇒ (x + 5) = 0 & (2x - 1) = 0

⇒ x = -5 & x = 1/2

∴ The zeroes of f(x) = 2x² + 9x - 5 are (-5) & (1/2)

<u>VERIFICATION :-</u>

1) Put x = -5 in f(x) = 2x² + 9x - 5

⇒ f(-5) = 2(-5)² + 9×(-5) - 5

           = 50 - 45 - 5

           = 50 - 50  

           = 0

2) Put x = 1/2 in f(x) = 2x² + 9x - 5

f(\frac{1}{2} ) = 2 \times (\frac{1}{2} )^2 + 9 \times \frac{1}{2}  - 5

       = 2 \times \frac{1}{4} + \frac{9}{2} - 5

       = \frac{1}{2} + \frac{9}{2} - 5

       = \frac{ 1 + 9 - 10}{2}

       = \frac{0}{2}

       = 0

6 0
3 years ago
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