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
madreJ [45]
3 years ago
15

PLEASE HELP IVE BEEN STUCK ON THIS QUESTION FOR 20 MINS IDK :(

Mathematics
1 answer:
steposvetlana [31]3 years ago
3 0
Remember
\frac{x^m}{x^n}=x^{m-n}
and
if a^b=a^c where a=a, then b=c
so
\frac{7^9}{7^n}=7^{9-n}=7^3
7^{9-n}=7^3
so
9-n=3
-n=-6
n=6

answer is 6
You might be interested in
Please help! Its a test that’s due today.
Eduardwww [97]

Answer:

it's b

Step-by-step explanation:

the denimonater is the root of the radical and the power

Hope this helps :)

3 0
3 years ago
Read 2 more answers
Evaluate the numerical expression. 9.6 – 10.8 ÷ 0.6
Lorico [155]
Hello :)

The answer is -8.4

Hope this helps and have a great day!
3 0
3 years ago
Read 2 more answers
If Hector is 8 years old and Mary is 3 years old how old will Mary be when Hector is 16
IRINA_888 [86]
Okay so 8 (hector) - 3(Mary) = 5 years apart
So, 16 (hector) - 5 (years apart) = 11 (Mary’s age)
7 0
3 years ago
A retailer who sells backpacks estimates that by selling them for x dollars each, she will be able to sell 100−x backpacks each
zvonat [6]

Answer:

x = 50

R = $2500

Step-by-step explanation:

Given in the question a quadratic equation,

−x² + 100x

To find the selling price, x, which will give highest revenue, y, we will find maximum value of parabola curve −x² + 100x

The value of -b/2a tells you the value x of the vertex of the function

−x² + 100x

here a = -1

        b = 100

Selling price = -(100)/2(-1)

                    =   50

 

R = −(50)² + 100(50)

  = 2500

8 0
3 years ago
State the gradient of the line perpendicular to the line y=3x-2
kherson [118]

Answer:

-1/3

Step-by-step explanation:

3 is the gradient of the other line

m1×m2=-1 (equation for perpendicular lines)

m1×3= -1

m1= -1/3

Pls confirm if its correct

correct me if wrong

thanks! :)

7 0
3 years ago
Other questions:
  • -4-p-3p=-4 solve for p
    7·2 answers
  • I need to rotate this 180 degrees about the origin and list the new coordinates.
    13·1 answer
  • Find the least common denominator 1/8 17/18 1/16 9/14
    10·1 answer
  • Line k has a slope of 2/3. If line m is parallel to line k, then it has a slope of
    13·2 answers
  • A boy had a box of animal crackers. He counted them out and found 20 cookies.
    14·1 answer
  • Please explain your answers and I'll mark the Brainliest!
    9·2 answers
  • Find the volume of the cone below.
    7·1 answer
  • Please help!!! Find the domain of the function y = 2 cot(5∕8x).
    5·1 answer
  • Car 1 is going 75mph and is 7 miles ahead of car 2 which is going 85mph. How long until car 2 passes car 1?
    9·1 answer
  • What is the correct answer need it ASAP PLEASE​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!