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CaHeK987 [17]
3 years ago
13

Write each function in parametric form, using the given equation for x. x^2+y^2=9, x= cos t

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
5 0
The answer is y^2 = 9- cos^2(t)
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A class has less than 30 students
Gala2k [10]
A class has LESS THAN 30 students 
we must find what number is less than 30 and divides into both 4 and 8 so that we don't have a fraction of a student owning a football boot
the class could have 8 students
the class could have 16 students
the class could have 24 students
<u>lets assume that the class has the max possible so </u>
<u>24 in the class</u>



so we must find a coommon denomenator (bottom number) to keep the fractions the same we must multiply it by 1 or (number)/(same number as on top) or 1/1
so 3/4 times 2/2=6/8
7/8
so we must assume that the ones who own footballs also have boots (and not some other random person) so 
6/8 or 3/4 of the class owns both football boots so 
3/4 times 24=18
18 students own football boots
8 0
3 years ago
HELP ME, THE MIDPOINT OF AB IS M (-4,-7). If the coordinates of A are (-7,-6) what are the coordinates of B?
hoa [83]

Answer:

(-1,-8)

Step-by-step explanation:

Multiply each value of midpoint by 2 and take away given points coordinates

7 0
3 years ago
NEED HELPPP ASAPPP !!
Dimas [21]
I think the answer is 12
6 0
3 years ago
What is the missing length?
TEA [102]
Answer:  13.722 km ;  or, write as:  13  13/18 km .
___________________________________________________
Explanation:
___________________________________________________
Area = Length * width ; 
___________________________________________________
or, write as:  A = L * w ;
________________________

Given: A = 247 km² ; 
           
          L = 18 km ; 
 
          w = "y" ; 
________________________
 Find:  "y"
______________________________
  A = L * w ; 
______________________________
Plug in our values:
______________________________
  247 km² = 18 km * "y" ;  solve for "y" (in units of "km") ;

_____________________________
        18 y = 247 ; 
___________________________________________________________
Divide each side of the equation by "18"; to isolate "y" on one side of the equation; and to solve for "y" :
___________________________________________________________
        18 y / 18 = 247 / 18 ;
_____________________________________________
  to get:
_____________________________________________
              y = 13.7222222222222222...... km ;  round to: 13.722 km

                   or;  y = 13  13/18 km .
_______________________________________________
3 0
3 years ago
What is 5 + 12 x 7 ?
Drupady [299]

Answer:

89

Step-by-step explanation:

Multiply first

12 times 7=84

Add 5 which makes 89

Hope this helped

:)

3 0
4 years ago
Read 2 more answers
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