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
ki77a [65]
3 years ago
13

ILL GIVE BRAINLIEST

Mathematics
1 answer:
Harrizon [31]3 years ago
6 0

Answer:

a = -3/2 = -1.5

Step-by-step explanation:

(1+ax) (2+3x)³

Formula

(a+b)^3=a^3+3a^2b+3ab^2+b^3

(1 + ax) [ 2^3 + 3*2^2*3x + 3*2*(3x)^2 + (3x)^3]

(1 + ax) [ 8 + 12*3x + 6*9x^2 + 27x^3]

8 + 12*3x + <u>6*9x^2</u> + 27x^3 + 8ax + <u>36ax^2</u> + 54ax^3 + 27ax^4

coefficient of x^2 is zero

54x^2 + 36ax^2

54 + 36a = 0

36a = -54

a = -3/2

You might be interested in
The following data values represent a sample. What is the variance of the
Katarina [22]

Answer:

6.2

Step-by-step explanation:

A P E X

6 0
3 years ago
canada has a population that is about 1/10 as the United States.if canada population is about 32 million,about how many people l
djyliett [7]
3.2 million 320 million divded by 10 is 1/10 of the population
3 0
4 years ago
Please Help!!! Which angles of the triangles measure 90°?
pochemuha
D and b
they are 90° angles cause you can draw your line to make a 90° angle
8 0
3 years ago
How do u solve <br>3 (x+8) - 3x ?
mariarad [96]
PEMDAS

paranthesis exponents multiplication division addition subtraction
3 0
3 years ago
Read 2 more answers
Use stoke's theorem to evaluate∬m(∇×f)⋅ds where m is the hemisphere x^2+y^2+z^2=9, x≥0, with the normal in the direction of the
ludmilkaskok [199]
By Stokes' theorem,

\displaystyle\int_{\partial\mathcal M}\mathbf f\cdot\mathrm d\mathbf r=\iint_{\mathcal M}\nabla\times\mathbf f\cdot\mathrm d\mathbf S

where \mathcal C is the circular boundary of the hemisphere \mathcal M in the y-z plane. We can parameterize the boundary via the "standard" choice of polar coordinates, setting

\mathbf r(t)=\langle 0,3\cos t,3\sin t\rangle

where 0\le t\le2\pi. Then the line integral is

\displaystyle\int_{\mathcal C}\mathbf f\cdot\mathrm d\mathbf r=\int_{t=0}^{t=2\pi}\mathbf f(x(t),y(t),z(t))\cdot\dfrac{\mathrm d}{\mathrm dt}\langle x(t),y(t),z(t)\rangle\,\mathrm dt
=\displaystyle\int_0^{2\pi}\langle0,0,3\cos t\rangle\cdot\langle0,-3\sin t,3\cos t\rangle\,\mathrm dt=9\int_0^{2\pi}\cos^2t\,\mathrm dt=9\pi

We can check this result by evaluating the equivalent surface integral. We have

\nabla\times\mathbf f=\langle1,0,0\rangle

and we can parameterize \mathcal M by

\mathbf s(u,v)=\langle3\cos v,3\cos u\sin v,3\sin u\sin v\rangle

so that

\mathrm d\mathbf S=(\mathbf s_v\times\mathbf s_u)\,\mathrm du\,\mathrm dv=\langle9\cos v\sin v,9\cos u\sin^2v,9\sin u\sin^2v\rangle\,\mathrm du\,\mathrm dv

where 0\le v\le\dfrac\pi2 and 0\le u\le2\pi. Then,

\displaystyle\iint_{\mathcal M}\nabla\times\mathbf f\cdot\mathrm d\mathbf S=\int_{v=0}^{v=\pi/2}\int_{u=0}^{u=2\pi}9\cos v\sin v\,\mathrm du\,\mathrm dv=9\pi

as expected.
7 0
3 years ago
Other questions:
  • If 1000 square centimeters of material is available to make a box with a square base and an open top, find the largest possible
    15·2 answers
  • I already did the work but i need someone to check it for me
    8·1 answer
  • Explain how knowing that 5÷8=.625 helps you write the decimal for 4 5/8
    8·1 answer
  • A line through which two points would be parallel to a line with a slope of 3/4?
    8·1 answer
  • Will mark Brainlyest Use the properties of exponents to simplify the expression(y^3/2 X^-1/2)^4
    15·1 answer
  • What’s is the value of the rectangular prism if the rectangular prims has an edge length of 3/4.
    6·1 answer
  • Will someone make me
    7·1 answer
  • Data was recorded for the temperature, in degrees Celsius, of a cup of coffee over a 30-minute period. Given the regression equa
    14·1 answer
  • Please take a look at the picture. Please write your answer with an explanation.
    12·1 answer
  • (-1,8) and (8,5). this is a coordinate distance wuestion that i rly need help on
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!