3 years ago

Find f(3) if f(x) = -4x^2+5x

Mathematics

2 answers:

maksim [4K]3 years ago

5 0

romanna [79]3 years ago

5 0

16 turksh corrnetc good lesson

You might be interested in

What is the distance from the Egypt river to Euphrates river

Vera_Pavlovna [14]

Answer:

25 hours

Step-by-step explanation:

7 0

3 years ago

Write an exponential model given the points ( 7, 12 ) and ( 8, 25 ). Round to the nearest hundredth.

inna [77]

Answer:

The exponential model is $y = 0.07\cdot e^{0.73\cdot x}$ .

Step-by-step explanation:

The exponential model can be modelled by the following mathematical expression:

$y = A\cdot e^{B\cdot x}$ (1)

Where:

$x$ - Independent variable.

$y$ - Dependent variable.

$A, B$ - Coefficients.

If we know that $(x_{1}, y_{1}) = (7,12)$ and $(x_{2}, y_{2}) = (8,25)$ , then we get the following system of equations:

$A\cdot e^{7\cdot B} = 12$ (2)

$A\cdot e^{8\cdot B} = 25$ (3)

If we divide (3) by (2), we calculate the value of $B$ :

$e^{B}=\frac{25}{12}$

$B = \ln \frac{25}{12}$

$B \approx 0.734$

And by (2), we determine the value of $A$ :

$A = 12\cdot e^{-7\cdot B}$

$A = 0.0704$

The exponential model is $y = 0.07\cdot e^{0.73\cdot x}$ .

4 0

2 years ago

4+8+12=3x8 the next equation is

MAXImum [283]

Answer:

True 24=24

Step-by-step explanation:

4+8+12=3x8

12+12=24

24=24

7 0

3 years ago

If Alex has 4 times as many dimes as nickels and they have a combined value of 270 cents, how many of

bija089 [108]

Answer:

Nickel has 54 cents and Alex has 216 cents.

Step-by-step explanation:

Hope it helps u :)

5 0

2 years ago

PLS HELP !! Question 16 of 25

svetoff [14.1K]

The answer will be E

5 0

2 years ago