1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kazeer [188]
4 years ago
6

First correct answer gets Brainliest!!!!!!! f(x) = -3x^2 + 2x - 7 Find f(-1)

Mathematics
1 answer:
True [87]4 years ago
3 0

Answer:

-12

Step-by-step explanation:

What it means by f(-1) is that x is -1.

So all you do is plug -1 into the x areas like this: -3(-1)^2+2(-1)-7=-12.

You might be interested in
An architect is designing a department store. She wants to add an escalator. She knows that the escalator will make a 30° angle
kifflom [539]
The distance a person would travel on the escalator stairs is 72 ft.The horizontal length needed is approx. 62.35, but in simpliest radical form it's 36√3! Good luck!!!!!!!!!!! <3
7 0
3 years ago
Write an equation of the line
Deffense [45]
(3,0) and (0,9)

Slope= (9-0)/(0-3)= -3

Line equals Y= -3x+9
4 0
3 years ago
For the given central angle, determine the distance traveled along the unit circle from the point (1, 0). 210 degrees a. 3.67 un
Black_prince [1.1K]

Answer:

3.67 units

Step-by-step explanation:

The central angle is at the point (0,0).

Then it's at the point (1,0)

Then it moved 210 degrees.

Let's bear in mind that we start moving the degree from it's current position.

So moving 210 degrees is moving 180 degrees plus 30 degrees.

Moving 180 degrees I like transforming linearly.

Now the location is at (-1,0)

But the distance covered will be

= 2πr*210/360

r = 1

= 2*3.142*1*(210/360)

= 6.144*0.5833333

= 3.67 units

3 0
3 years ago
what types of problems can be solved using the greatest common factor what types of problems can be solved using the last common
jonny [76]

Answer:

The greatest common factor is the biggest factor that divides two different numbers. For example, the greatest common factor of 6 and 8 is 2. The least common multiple is the smallest number that two numbers share as a multiple. For example, 12 is a the lowest common multiple of 3 and 4.

Step-by-step explanation:

3 0
4 years ago
The population of a community is known to increase at a rate proportional to the number of people present at time t. The initial
qaws [65]

Answer:

Step-by-step explanation:

Let P be the population of the community

So the population of a community increase at a rate proportional to the number of people present at a time

That is

\frac{dp}{dt} \propto p\\\\\frac{dp}{dt} =kp\\\\ [k \texttt {is constant}]\\\\\frac{dp}{dt} -kp =0

Solve this equation we get

p(t)=p_0e^{kt}---(1)

where p is the present population

p₀ is the initial population

If the  initial population as doubled in 5 years

that is time t = 5 years

We get

2p_o=p_oe^{5k}\\\\e^{5k}=2

Apply In on both side to get

Ine^{5k}=In2\\\\5k=In2\\\\k=\frac{In2}{5} \\\\\therefore k=\frac{In2}{5}

Substitute k=\frac{In2}{5}  in p(t)=p_oe^{kt} to get

\large \boxed {p(t)=p_oe^{\frac{In2}{5}t }}

Given that population of a community is 9000 at 3 years

substitute t = 3 in {p(t)=p_oe^{\frac{In2}{5}t }}

p(3)=p_oe^{3 (\frac{In2}{5}) }\\\\9000=p_oe^{3 (\frac{In2}{5}) }\\\\p_o=\frac{9000}{e^{3(\frac{In2}{5} )}} \\\\=5937.8

<h3>Therefore, the initial population is 5937.8</h3>
7 0
3 years ago
Other questions:
  • If a sprinkler waters 1 over 8 of a lawn in 1 over 4 hour, how much time will it take to water the entire lawn?
    12·1 answer
  • I️ have to use 15 as Y
    8·1 answer
  • How many whole numbers are there between 20 and 30
    7·1 answer
  • I NEED THIS TO PASS CAN SOMEONE HELP ME!!!
    11·1 answer
  • The addition law is potentially helpful when we are interested in computing the probability of
    9·1 answer
  • Which shaded region is represnted by
    15·2 answers
  • The senior class made some pies to sell at the career night high school as a fundraiser. The teacher contributed 4 pies to the f
    12·2 answers
  • The Royal Fruit Company produces two types of fruit drinks. The first type is 35% pure fruit juice, and the second type is 100%
    12·1 answer
  • If b = 5, what is 632<br> 15<br> 25<br> 75<br> 125
    11·2 answers
  • Equation for Wx+10=20
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!