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
CaHeK987 [17]
3 years ago
12

Find a formula for a function f(x,y,z) whose level surface f=81 is a sphere of radius 9, centered at the origin.

Mathematics
1 answer:
Mrrafil [7]3 years ago
4 0

81(9 \times 8 = 72 + 9) = 81
You might be interested in
Jose purchased 4/9 pound of peanut and 7/11 pounds of raisins find the total weight of his purchase
azamat

Answer:

The total weight of his purchase is 1.08 pounds

Step-by-step explanation:

To find the total weight of his purchase, we sum the weight of each of his purchases.

He purchased:

4/9 pound of peanut.

7/11 pounds of raisins

Total:

The least common multiple between 9 and 11 is 99.

Then

\frac{4}{9} + \frac{7}{11} = \frac{11*4 + 9*7}{99} = \frac{107}{99} = 1.08

The total weight of his purchase is 1.08 pounds

8 0
3 years ago
Given right triangle ABC with right angle at C, find sin A if a=8 and b=15​
Svetllana [295]

Answer:

if you are lookng for C it is 17

Step-by-step explanation:

7 0
3 years ago
PLEASE HELP FAST!<br><br><br> what is the length of segment AB? <br> 10<br> 12<br> 13<br> 15
ss7ja [257]

Answer:

13

Step-by-step explanation:

This triangle appears to be 5 units wide and 12 units tall.

Using the pythagorean theorem, a^2 + b^2 = c^2, we get 25 + 144 = 169 or 13^2.

Therefore the answer is 13.

4 0
2 years ago
Read 2 more answers
There is a manhole cover with a radius of 1 foot. What is the manhole cover's diameter?
zhuklara [117]

Step-by-step explanation:

This seems like you just want to figure out the circumference of the manhole cover. The formula for the circumference of a circle is pi (3.14) multiplied by the diameter (d) of the circle so, circumference=πd. (π is the symbol for pi and approx. equals 3.14)

Circumference = πd

= 3.14(d)

= 3.14(3)

= 9.42 ft.

The length of the brass grip-strip will be 9.42 ft.

If the problem was stated in terms of the radius of the manhole cover then the formula would be circumference = 2πr which is the radius multiplied by 2 then multiplied by pi.

The radius of a circle is the distance from the center to the edge and the diameter is the distance from one edge of the circle to the other passing through the center of the circle.

Well, if the grip strip were of no width and could be straightened out to a line (which a piece of rubber cut in a circle couldn't be), then the length of the grip would correspond to the circumference of the manhole cover.

Circumference = 2*PI*radius = PI*diameter so your answer is 3*PI feet long.

6 0
2 years ago
2/3(6c+4)-(8c-5) Please explain how to do the problem.
irga5000 [103]
2/3(6c+4)-(8c-5)
1) Get rid of the negative signs
New equation (the ones in bold are the changes): 2/3(6c+4)+(-8c)+(5)
2) Use distributive property for the first part by multiplying 2/3*6c= 4c and 2/3*4= 2 2/3
New equation: 4c+2 2/3+ (-8c) + 5
3) Combine like terms: 4c+(-8c)= -4c and 2 2/3+5= 7 2/3
New and simplified equation: -4c+ 7 2/3
5 0
3 years ago
Other questions:
  • If 10% is deducted from bill, $58.50 remains to be paid. How much is original bill?
    12·2 answers
  • Which table shows a function that is decreasing only over the interval (–1, 1)? A 2-column table with 5 rows. The first column i
    14·2 answers
  • Accupril is meant to control hypertension. In clinical trials of Accupril, 2142 subjects were divided into two groups. The 1563
    12·1 answer
  • Which number is the smallest? .33 .8 2 8
    9·2 answers
  • The sum of 5 consecutive integers is 110, what is the fourth number in this sequence?
    11·1 answer
  • What is the value of x?<br><br><br><br> x over 4 equals 14 over 16<br><br><br><br> x =
    7·2 answers
  • Help don’t understand it
    10·1 answer
  • A square pyramid has sides of 8 m. Each face is an equilateral triangle. What is the lateral area of the pyramid?
    13·1 answer
  • Mr. Williams is driving on a highway at an average speed of 50 miles per hour. His destination is 100 miles away. The
    12·1 answer
  • What is the square root of 3x plus 16 and equal to 7
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!