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
ioda
3 years ago
8

Can someone help me please ?

Mathematics
2 answers:
mafiozo [28]3 years ago
7 0
25^(n-3)=5^(n+8)
Remember: 25=5²
Therefore:
5^[(n-3)²]=5^(n+8)
5^(2n-6)=5^(n+8)
Then:
2n-6=n+8
2n-n=8+6
n=14

Answer: n=14


7nadin3 [17]3 years ago
6 0
25ⁿ ⁻ ³  =  5ⁿ ⁺ ⁸

Make both bases to be equal.

Recall 25 = 5²

(5²)⁽ⁿ ⁻ ³⁾  =  5ⁿ ⁺ ⁸

5²⁽ⁿ ⁻ ³⁾  =  5ⁿ ⁺ ⁸

2*(n - 3) = 2*n - 2*3 = 2n - 6

5²ⁿ ⁻ ⁶  =  5ⁿ ⁺ ⁸

Since the bases which is 5 are equal, that means the powers are the same.

2n - 6 = n + 8,    take the n to the left side of the equation

2n - n = 8 + 6

n = 14

I hope this helps.
You might be interested in
Anyone kno number 10
QveST [7]
We Can’t Really See It
3 0
3 years ago
Read 2 more answers
If you have a triangle with sides of 16, 25, and 31, is it a right triangle?​
emmasim [6.3K]
Omg i have the same question
5 0
3 years ago
Are two lines parallel, perpendicular or neither 3x+7y=15 and 7x-3y=6
maw [93]

Answer:

The lines are perpendicular

Step-by-step explanation:

we know that

If two lines are parallel, then their slopes are equal

If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)

we have

3x+7y=15 ----> equation A

isolate the variable y

7y=-3x+15

Divide by 7 both sides

y=-\frac{3}{7}x+\frac{15}{7}

The slope of the line A is m_A=-\frac{3}{7}

7x-3y=6 ----> equation B

isolate the variable y

3y=7x-6

Divide by 3 both sides

y=\frac{7}{3}x-2

The slope of the line B is m_B=\frac{7}{3}

Compare the slope of both lines

m_A=-\frac{3}{7}

m_B=\frac{7}{3}

so

m_A \neq m_B ----> the lines are not parallel

Find the product of the slopes

-\frac{3}{7}(\frac{7}{3})=-1 ----> the lines are perpendicular

4 0
3 years ago
Please help me I don’t understand
Ganezh [65]
Hello!

The least common denominator is the lowest common factor between the two denominators

The lowest common denominator is 15

Hope this helps!
7 0
3 years ago
Find the circumference and area
kozerog [31]
C=2pi(r)

Pi=3.14

r=5.5

So C=2(3.14)(5.5)=34.56

So the circumference is 34.56 mi

And the area is A=pi(r)²

So you have

A=3.14(5.5)²

So A=95.03 mi²


So the area is 95.03 mi² and the circumference is 34.56 mi


Hope this helps!
7 0
2 years ago
Other questions:
  • The expression 20l + 25g - 10 gives the number of dollars that Josie makes from mowing lawns and raking gardens.
    10·1 answer
  • 650ft squared divided by 2/3 hour
    5·1 answer
  • I WILL GIVE BRAINLIEST TO WHOEVER IS CORRECT
    10·2 answers
  • What is 1/6+1/2 in its simplest form?
    10·2 answers
  • If x varies directly with y and x = 6 when y = 15, find x when y= 20.
    5·1 answer
  • If p = 8 cm, r = 3 cm, and s = 5 cm, and the bases of the figure are the shaded regions, what is the lateral surface area of the
    8·2 answers
  • Describe the possible values of x.​
    6·1 answer
  • Point N is on line segment \overline{MO} MO . Given MN=2x, NO=x-2, and MO = 2x+9, determine the numerical length of \overline{MN
    9·1 answer
  • What is 78,400,000 expressed in scientific notation?
    6·1 answer
  • The perimeter of a rectangular e room is 24 feet. Twice the length
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!