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
vlabodo [156]
3 years ago
15

..........................

Mathematics
2 answers:
nordsb [41]3 years ago
7 0
72/8 = 9
n/5=9
n=9*5
n=45

2nd one
cross multiply and get 4n=18*9
4n=162
n=162/4
n=(81/2) or 40.5 depending on if it needs to be a fraction or decimal
ELEN [110]3 years ago
4 0
\frac{n}{5} =  \frac{72}{8} \\ \\  \frac{n}{5} = 9 \\ \\ n = 9 \times 5 \\ \\ n = 45 \\ \\

The final result is: n = 45.

---------

\frac{9}{n} =  \frac{4}{18} \\ \\  \frac{9}{n} =  \frac{2}{9} \\ \\ 9 =  \frac{2}{9} n \\ \\ 9 =  \frac{2n}{9} \\ \\ 9 \times 9 = 2n \\ \\ 81 = 2n \\ \\  \frac{81}{2} = n \\ \\ n =  \frac{81}{2} \\ \\

The final result is: n = 81/2 or n = 40.5.
You might be interested in
I NEED HELP ALSO LEAVE YALL NUMBER BELOW IF UR 14+
Alexus [3.1K]

Come on bro you are way too young for that

5 0
3 years ago
Use the definition of continuity and the properties of limits to show that the function f(x)=x sqrtx/(x-6)^2 is continuous at x
qaws [65]

Answer:

The function is  continuous at  x = 36

Step-by-step explanation:

From the question we are told that

      The  function is f(x)  =  x *  \sqrt{ \frac{x}{ (x-6) ^2 }  }  

       The  point at which continuity is tested is  x =  1

Now from the definition  of continuity ,

   At function is continuous at  k if  only  

       \lim_{x \to k}f(x)  =  f(k)

So

      \lim_{x \to 36}f(x)  =  \lim_{n \to 36}[x *  \sqrt{ \frac{x}{ (x-6) ^2 }  }]

                            = 36 *  \sqrt{ \frac{36}{ (36-6) ^2 }  }

                             = 7.2

Now  

     f(36) = 36  *  \sqrt{ \frac{36}{ (36-6) ^2 }  }

     f(36) = 7.2

So  the given function is continuous at  x =  36

because

          \lim_{x \to 36}f(x)  =  f(36)

7 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%20%2B%204%7D%7B3%7D%20%20%3D%206" id="TexFormula1" title=" \frac{x + 4}{3} = 6
Gwar [14]
Multiply both sides by 3 to cancel out the 3 in the denominator of the left side of the equal sign. You get:

x + 4 = 18

Now subtract 4 from both sides to get variables one side, constants on the other. 

x = 18 - 4
x = 14

Your answer is x = 14
8 0
4 years ago
Question 13 (2 points)Find the area of the Sector of a circle with the given angle. Round your answer to the nearest tenth.3158
olasank [31]

13

Answer: 175.8 cm^2

Explanation:

The formula for calculating the area of a sector is expressed as

Area = θ/360 x πr^2

where

r is the radius of the circle

θ is the angle subtended at the center

From the information given,

θ = 315

r = 8

π = 3.14

By substituting these values into the formula,

Area of sector = 315/360 x 3.14 x 8^2

Area of sector = 175.8 cm^2

7 0
1 year ago
Find x if the average of 20, 20, 19, 13, and x is 16
fiasKO [112]
By adding 20+20+19+13+x and dividing by 5 you will receive the answer. Therefore by substituting numbers, 8 will give you the correct average.
20+20+19+13+8 = 80
80/5 = 16.
Therefore x = 8
If I have helped you out, help me out by making me the brainliest answer.
4 0
4 years ago
Read 2 more answers
Other questions:
  • Confused beyond confused
    13·1 answer
  • Change each mixed number into an equal improper fraction a. 1 7/16, b. 11 5/9, c. 30 5/9, d. 10 10/13, e. 24 3/5, f. 129 1/2
    11·2 answers
  • An investment club used funds totaling $200,000 to invest in a bio-tech company and in an ethanol plant, with hopes of earning 1
    11·1 answer
  • There are 4 semi- trailer truck park a line at the stop. After the first truck, each in the line weights 2 tons more than the tr
    15·1 answer
  • Check
    15·1 answer
  • 3.8 is what in percent 1.9375 is what in percent ​
    12·1 answer
  • Question 4 of 10
    12·1 answer
  • Write 5√20 in exponental form​
    12·1 answer
  • The graph shows the relationship between time
    15·1 answer
  • Which of the following represents a rotation of △EFG, which has vertices E(4,−3), F(−7,5), and G(2,8), about the origin by 180°?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!