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
babymother [125]
3 years ago
7

Ayúdenme por favor necesito esto resolvió para mañana

Mathematics
1 answer:
lions [1.4K]3 years ago
7 0

Answer:

Cómo puedo ayudar

Step-by-step explanation:

You might be interested in
Simplify: |3−8|−(12÷3+1)2
Nonamiya [84]

Answer:

|3-8|-(12/3+1)2

=|-5|-(4+1)2

=5-5x2

=5-10

=-5

You said simplify, but it can be solve.

7 0
3 years ago
Read 2 more answers
What are the solutions of the equation 9x4 – 2x2 – 7 = 0? Use u substitution to solve. tions of the equation 9
skelet666 [1.2K]

Answer:

Step-by-step explanation:

Let u^2=x^4\\u = x^2

Subbing in:

9u^2-2u-7=0

a = 9, b = -2, c = -7

The product of a and c is the aboslute value of -63, so a*c = 63.  We need 2 factors of 63 that will add to give us -2.  The factors of 63 are {1, 63}, (3, 21}, {7, 9}.  It looks like the combination of -9 and +7 will work because -9 + 7 = -2.  Plug in accordingly:

9u^2-9u+7u-7=0

Group together in groups of 2:

(9u^2-9u)+(7u-7)=0

Now factor out what's common within each set of parenthesis:

9u(u-1)+7(u-1)=0

We know this combination "works" because the terms inside the parenthesis are identical.  We can now factor those out and what's left goes together in another set of parenthesis:

(u-1)(9u+7)=0

Remember that u=x^2

so we sub back in and continue to factor.  This was originally a fourth degree polynomial; that means we have 4 solutions.

(x^2-1)(9x^2+7)=0

The first two solutions are found withing the first set of parenthesis and the second two are found in other set of parenthesis.  Factoring (x^2-1) gives us that x = 1 and -1.  The other set is a bit more tricky.  If

9x^2+7=0 then

9x^2=-7 and

x^2=-\frac{7}{9}

You cannot take the square root of a negative number without allowing for the imaginary component, i, so we do that:

x=±\sqrt{-\frac{7}{9} }

which will simplify down to

x=±\frac{\sqrt{7} }{3}i

Those are the 4 solutions to the quartic equation.

5 0
3 years ago
9×7= Use. the disistributive property to find each product.<br><br>​
ANEK [815]

Answer:

63

Step-by-step explanation:

first yoy need to put the biggest number on the top then multiply each number

6 0
3 years ago
I don't really understand this can someone explain this to me
azamat
Find the measure of the arc or angle. 

8 0
3 years ago
Anyone knows the answer
jarptica [38.1K]
It's C)

the graph is decrasing, so the variable rate is negative (-2/3)

the rest was quite easy, you just take a look at where the graph cuts the y-axis and determine the rest from the rate of going up or down (increase/decrease)
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which is a secant?<br> CT<br> MH<br> CD
    13·2 answers
  • How do i find the degree
    7·2 answers
  • The discriminant of x2 + 6x + 9 = 0
    12·1 answer
  • you rent a canoe for 5$ per hour.Your cost before the tax is added is 12.50. write and solve an equation to find the total numbe
    7·1 answer
  • A stadium has 47000 seats seats sell for $35 in section a $30 in section B and 25 in section c the number of seats in section A
    13·1 answer
  • Which correctly describes a cross section of the cube below? Check all that apply.
    15·1 answer
  • 6 in.
    14·1 answer
  • Rewrite log(17a•2b) as a sum
    15·1 answer
  • Help? I can't get a hold of it.
    10·1 answer
  • What is the solution to y=-2x+7 and y=5x-7
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!