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
azamat
3 years ago
10

PLEASE HELP ME WITH THIS PROBLEM!!!!!!

Mathematics
1 answer:
Jet001 [13]3 years ago
5 0

Answer:

n = 59

Step-by-step explanation:

I find it easiest to work problems of this kind using a graphing calculator. That way, extraneous solutions can be avoided. It seems to work well to rewrite the problem, so you're looking for a value of n that makes the result zero. Here, that would mean you want ...

... f(n) = √(n+5) -√(n-10) -1

_____

The solution by hand involves eliminating the root symbols. You do that by squaring the equation:

... n +5 -2√((n+5)(n-10)) + n -10 = 1

Now, we isolate the remaining root and square again.

... 2n -6 = 2√((n+5)(n-10)) . . . collect terms, add 2√( ) -1

... n -3 = √(n²-5n-50) . . . . . . . divide by 2

... n² -6n +9 = n² -5n -50 . . . . square both sides

... 59 = n . . . . . . . . . . . . . . . . . add 50 +6n -n²

You might be interested in
Simplify [3(4-2)]x(16-4x3)PLS HURRY!!!!!!!!!
Lapatulllka [165]

Answer:6x*4

Step-by-step explanation:

(12-6)x(16-12)

6x*4

5 0
2 years ago
Read 2 more answers
Parker ate one-third the number of raisins Devan ate.
zaharov [31]
Parker ate 1/3 the number of raisins Devan ate...
P = 1/3d.....can also be written as P = d/3....answer is C
4 0
3 years ago
Which ordered pair represents the y-intercept of the graph of the equation y = -5x + 6?
Sonja [21]

The answer is A (0,6)


3 0
3 years ago
Read 2 more answers
A first alloy contains x pounds of 55% silver. It is mixed with a second alloy containing 30% silver to make 60 pounds of an all
Ann [662]

Answer:

"24 pounds" is the appropriate answer.

Step-by-step explanation:

According to the question, the equation will be:

⇒ x+y=60...(equation 1)

or,

⇒ \frac{55}{100}x+\frac{30}{100}y=\frac{40}{100}\times 60

      55x+30y=2400...(equation 2)

Now,

By multiplying (equation 1) by 55 and (equation 2) by 1, we get

⇒ 55x+55y=3300...(equation 3)

⇒ 55x+30y=2400...(equation 4)

From equation 3 and 4, we get

⇒ 25y=900

       y=\frac{900}{25}

          =36

By putting the values of "y" in equation 1, we get

⇒ x=60-36

       =24

Thus the value of x be "24 pounds".

3 0
2 years ago
Which expression is equivalent to 3^12 • 7^9
TEA [102]
The answers are...

B. (3 ^3) ^9 * (7 ^3) ^6
D. (3 ^3 + 3 ^9) * (7 ^6 + 7 ^3)
5 0
3 years ago
Other questions:
  • Find the z value for x=40 for a normal distribution with μ=30 and σ=5
    13·1 answer
  • Figure ABCD is a parallelogram. If point C lies on the line y= -1, what is the x-value or point C?
    9·2 answers
  • Find the value of the logarithm.<br> log 210<br> Round your answer to the nearest thousandth.
    10·2 answers
  • The area of a square garden is 1/81 km2. How long is each side?
    8·1 answer
  • (5x4 + 5x3 + 4x - 9) + (2x4 + 7x2 + 2x + 14)
    9·1 answer
  • 2. Divide 8x - 4x +1 by x+6
    15·1 answer
  • Algebra help PLEASEEE
    15·1 answer
  • WILL MARK BRAINLIEST!!!
    8·2 answers
  • 1. If 36 donuts cost $15.00, what would be the cost for one 12 donuts?
    9·1 answer
  • Which sign makes the statement true? |6|? -8 greater than less than or equal to?​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!