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
photoshop1234 [79]
3 years ago
8

Solve 90x = 81+25x^2​

Mathematics
1 answer:
qwelly [4]3 years ago
6 0

Answer:

1.8

Step-by-step explanation:

Solve for x

90

x

=

81

+

25

x

2

Subtract

25

x

2

from both sides of the equation.

90

x

−

25

x

2

=

81

Subtract

81

from both sides of the equation.

90

x

−

25

x

2

−

81

=

0

Factor the left side of the equation.

Tap for more steps...

−

(

5

x

−

9

)

2

=

0

Multiply each term in

−

(

5

x

−

9

)

2

=

0

by

−

1

Tap for more steps...

(

5

x

−

9

)

2

=

0

Set the

5

x

−

9

equal to

0

.

5

x

−

9

=

0

Solve for

x

.

Tap for more steps...

x

=

9

5

The result can be shown in multiple forms.

Exact Form:

x

=

9

5

Decimal Form:

x

=

1.8

Mixed Number Form:

x

=

1

4

5

Upgrade to

You might be interested in
Write an expression for the verbal phrase:
sdas [7]
The answer would be h^2*8

5 0
3 years ago
Read 2 more answers
A park has a rectangular field, and pool that are similar in shape. Each dimension of the field is 8.2 times the corresponding d
nordsb [41]
I believe the answer is c
6 0
3 years ago
Read 2 more answers
Help me plz quick my phone about to die
konstantin123 [22]
I'll do the first graph.

We can easily find the y intercept by inputting 0 for x.

y = -2(0) + 7
y = 7

The y-intercept is (0, 7)

To find the x intercept, isolate x.

y = -2x + 7
Add 2x to both sides.
2x + y = 7
Subtract y from both sides.
2x = -y + 7
Divide by 2 on both sides.
x = -1/2y + 3.5

Input 0 for y.

x = -1/2(0) + 3.5
x = 3.5

The x intercept is (3.5, 0)

Now try the rest own your own! :)
5 0
4 years ago
STOP! DONT SCROLL PAST THIS! I️ NEED YOUR HELP ASAP IM BEGGING YOU!!! What is the slope of the given slide?
mestny [16]
That would be -16.15549...
Hope it helps!
3 0
3 years ago
Read 2 more answers
Workers on the assembly line produce 4x + 6 boats each day. Which expression shows how many boats they produced in 12 days?
Annette [7]
We're going to assume that x = # of days.
Plug 12 in as x:
4 × 12 = 48
48 + 6 = 54
They produced 54 boats in 12 days.
7 0
3 years ago
Read 2 more answers
Other questions:
  • How many gfs does ramon have in a week if he has 2 a day?
    15·2 answers
  • Multivariable: Assume there is an opaque ball of radius 1 centered at the origin.
    15·1 answer
  • Which function rule models the function over the domain specified in the table below? x f(x) –7 –11 –1 1 3 9 4 11 7 17 f(x) = 3x
    8·2 answers
  • Of the numbers 8,9 or 10 which one is a solution of the inequality n - 3 > 6?
    8·1 answer
  • Runner  is faster than Runner​
    11·2 answers
  • An equilateral triangle is folded in half. What type of triangle is formed?
    11·1 answer
  • The legs of a right triangle are represented by a and b, and the hypotenuse of the right triangle is represented by c. Which equ
    13·1 answer
  • I need help with this please! ASAP<br> (PLEASE MULTIPLY AND SIMPLIFY COMPLETELY)
    9·2 answers
  • PLEASE HELP ASAP I WILL MARK BRAINLIEST!!
    7·2 answers
  • If you walk 15 miles in 8 hours, how many miles would you walk in 2 hours​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!