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3 years ago

F(x)=x2+8x+6. What is the value of f(4)?

Mathematics

1 answer:

dezoksy [38]3 years ago

4 0

46

When it says f(4) that means x=4

So you then just fill in all the x’s with 4’s and solve as normal

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18 *2^5t = 261 what is the solution of the equation

olchik [2.2K]

Answer:

0.772

Step-by-step explanation:

Original equation:

$18 * 2^{5t}=261$

Divide both sides by 18

$2^{5t} = 14.5$

Rewrite in logarithmic form ( $b^x=c \implies log_bc=x$ )

$log_214.5 = 5t$

Divide both sides by 5

$\frac{log_214.5}{5}=t$

Rewrite the equation so that base is 10 using change of base formula: $log_ba = \frac{log_na}{log_nb}$

$\frac{(\frac{log14.5}{log2})}{5}=y$

Keep, change, flip

$\frac{log14.5}{log2}*\frac{1}{5} = \frac{log14.5}{5 * log2}$

Use a calculator to approximate log14.5 and log2

$\frac{1.161368}{5 * 0.301029996} = t$

Multiply in denominator

$\frac{1.161368}{1.505149978} = t$

Divide two values

$t\approx 0.771596$

Round to nearest thousandth

$t\approx 0.772$

6 0

2 years ago

Can someone answer the question ??

Temka [501]

Answer:
Faris' arrival time = 3:30 pm + 3 h 54 mnt = 7:24 pm
Step-by-step explanation:
Driving distance between Manchester to London = 195 miles
Coach left Manchester = 3.30 pm
Average speed of coach = 50 mph
Total time taken by the coach to reach the Manchester to London = 195÷50 = 3.9 h
0.9 h = 0.9×60 mnt = 54 mnt
Now,
3.9 h = 3 h 54 mnt
Hence Faris' arrival time in London = 3.30 pm + 3 h 54 mnt = 7.24 pm

5 0

3 years ago

Cheyenne owns a car worth $5,200 and a motorcycle worth $2,600. Her only debt is the $800 she still owes her father for the car.

Alex777 [14]

The answer would be A 7000$. Hope that helped!

8 0

3 years ago

For exponential growth, what changes to the model could make it more realistic? Similarly, how could you modify exponential deca

Shtirlitz [24]

Answer:

wdym

Step-by-step explanation: