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
anzhelika [568]
2 years ago
13

Whats the answer to that

Mathematics
1 answer:
harina [27]2 years ago
3 0

Given a quadratic equation

ax^2+bx+c=0

The solutions are given by

\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

In your case,

a=1,\quad b=3,\quad c=1

So, the solutions are

\dfrac{-3\pm\sqrt{9-4}}{2}=\dfrac{-3\pm\sqrt{5}}{2}

So, the two solutions are

x_1 = \dfrac{-3+\sqrt{5}}{2},\quad x_2=\dfrac{-3-\sqrt{5}}{2}

And they are approximated by

x_1\approx -0.38,\quad x_2\approx -2.62

You might be interested in
I need help me with number 7
Lina20 [59]
-7=-9+n/8
Add 9 to both sides
2=n/8
Multiply 8 on both sides
Final Answer: 16=n
4 0
3 years ago
Im confused..I feel as if what I’m learning in class itself is not as difficult as the problems my teacher gives us to take home
RideAnS [48]
Ok, so remember that the derivitive of the position function is the velocty function and the derivitive of the velocity function is the accceleration function

x(t) is the positon function
so just take the derivitive of 3t/π +cos(t) twice
first derivitive is 3/π-sin(t)
2nd derivitive is -cos(t)
a(t)=-cos(t)

on the interval [π/2,5π/2) where does -cos(t)=1? or where does cos(t)=-1?
at t=π
so now plug that in for t in the position function to find the position at time t=π
x(π)=3(π)/π+cos(π)
x(π)=3-1
x(π)=2
so the position is 2







ok, that graph is the first derivitive of f(x)
the function f(x) is increaseing when the slope is positive
it is concave up when the 2nd derivitive of f(x) is positive

we are given f'(x), the derivitive of f(x)
we want to find where it is increasing AND where it is concave down

it is increasing when the derivitive is positive, so just find where the graph is positive (that's about from -2 to 4)

it is concave down when the second derivitive (aka derivitive of the first derivitive aka slope of the first derivitive) is negative
where is the slope negative?
from about x=0 to x=2
and that's in our range of being increasing
so the interval is (0,2)
4 0
3 years ago
Find the area of the figure
Marianna [84]

Answer:

I wont give you the answer because i know you can do it just multiply all the numbers its easy

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Help plssssssssssssss​
lilavasa [31]
It is the answer D, because 9 it’s in all answers
3 0
3 years ago
Can you answer this???
Andreas93 [3]

Answer:

no sorry

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Are rational numbers always, sometimes or never natural numbers?
    7·1 answer
  • If the radius of a circle is increased by a factor of 3, how will the area of the object be affected?
    6·1 answer
  • Write three ways to find different bases for 64
    12·1 answer
  • Jill's bowling scores are approximately normally distributed with mean 170 and standard deviation 25, while jack's scores are ap
    11·1 answer
  • If AB=19 and AC=32 find the length of BC
    13·1 answer
  • I need help plz!!!!!?
    14·2 answers
  • I will mark brainliest if correct please answer fast
    11·2 answers
  • Can someone please please answer this and explain it? my math teacher didn’t :( will give brainliest points for explanation!!! (
    10·1 answer
  • Giving brianliest for BOTH answers! <3
    5·1 answer
  • Plzzzzzzzzzzzzzzzzzzzzzzzzzz
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!