All categories

2 years ago

Let f(x) = x2 + 4x + 1

Mathematics

2 answers:

kipiarov [429]2 years ago

5 0

Answer:

Step-by-step explanation:

2(.5)=1

4(.5)=2

2+1+1=4

mixas84 [53]2 years ago

4 0

Answer:

Step-by-step explanation:

plug in 0.5

0.5(2)+4(0.5)+1

You might be interested in

Is 1.1 less than or greater than or equal to the square root of two

dangina [55]

Answer:

less than

Step-by-step explanation:

the Square root of 2 is 1.4142...

3 0

3 years ago

If p equals three, what is the value of p raised to the second power plus five minus four p?

PilotLPTM [1.2K]

The answer is 2.
p=3
3^2+5(4 x 3)= 2

6 0

3 years ago

What number is 7 units to the left of -1?

expeople1 [14]

7 unit to the left, means it is 7 less than -1.
-1-7 = -8

Ans: -8

7 0

3 years ago

The city of Anvil is currently home to 21000 people, and the population has been growing at a continuous rate of 4% per year. Th

Yanka [14]

Answer:

They'll reach the same population in approximately 113.24 years.

Step-by-step explanation:

Since both population grows at an exponential rate, then their population over the years can be found as:

$\text{population}(t) = \text{population}(0)*(1 + \frac{r}{100})^t$

For the city of Anvil:

$\text{population anvil}(t) = 21000*(1.04)^t$

For the city of Brinker:

$\text{population brinker}(t) = 7000*(1.05)^t$

We need to find the value of "t" that satisfies:

$\text{population brinker}(t) = \text{population anvil}(t)\\21000*(1.04)^t = 7000*(1.05)^t\\ln[21000*(1.04)^t] = ln[7000*(1.05)^t]\\ln(21000) + t*ln(1.04) = ln(7000) + t*ln(1.05)\\9.952 + t*0.039 = 8.8536 + t*0.0487\\t*0.0487 - t*0.039 = 9.952 - 8.8536\\t*0.0097 = 1.0984\\t = \frac{1.0984}{0.0097}\\t = 113.24$

They'll reach the same population in approximately 113.24 years.

4 0

3 years ago

Y = x -5<br> x + y = -1 <br> whats the soultion for the systeam of eqations

pantera1 [17]

Answer:

x = 2

y = -3

Step-by-step explanation:

y = x - 5 -------------------(I)

x + y = -1 ----------------(II)

Substitute y = x -5 in equation (II)

x + (x - 5) = -1

x + x - 5 = -1 {Combine like terms}

2x - 5 = -1 {Add 5 to both sides}

2x = -1 + 5

2x = 4 {Divide both sides by 2}

x = 4/2

x = 2

Substitute x = 2 in equation (I)

y = 2 - 5

y = -3

3 0

2 years ago