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MatroZZZ [7]
3 years ago
10

Which ordered pair in the form (x,y) is a solution of this equation? 3x-4y=21

Mathematics
2 answers:
kogti [31]3 years ago
3 0

Answer:

c

Step-by-step explanation:

pychu [463]3 years ago
3 0
It should be C. If you input the X value of 7 into the equation it comes out as 21. Then input 0 to the y, this gives you 0. This leaves you with 21. Which makes the equation true.
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Solve this equation<br><br><br> BC/AD = ?
KiRa [710]

Answer:

Anno Domini

Step-by-step explanation:

6 0
3 years ago
Given that a=3x+2y /3x+2y<br> Find a if y=4 and x=6.
Fofino [41]

Answer:

Simplify 3⋅6+2⋅4/3⋅6+2⋅6.

Step-by-step explanation:

Exact Form:

a=274/9

Decimal Form:

a=30.¯4

Mixed Number Form:

a=30 4/9

is it right???

6 0
3 years ago
A stick is broken into two pieces, at a uniformly random break point. Find the CDF and average of the length of the longer piece
Oksanka [162]

Answer:

P(L ≤ l) =P (1-l ≤ U ≤ l)= l- ( 1 - l ) = 2 l - 1

Step-by-step explanation:

let assume that stick has length 1.Random variable L that make length of a longer piece and random variable U that mark point .See that L < l means that

U≤ l and 1-U ≤l

P(L ≤ l) =P (1-l ≤ U ≤ l)= l- ( 1 - l ) = 2 l - 1

this means 1-l≤U≤l

so we have

if we have L  [1/2,1]

then apply the formula we have E(L)=3/4

5 0
4 years ago
Simplify three over five divided by negative four over nine..
gladu [14]
3/5 divided by -4/9
3/5 times the reciprical -9/4
-27/20=-1 7/20
3 0
3 years ago
Is 3/4 and 3/8 equivalent fractions and why? Thanks
uranmaximum [27]
No, they are not equivalent. The numerators are equals, but the denominators are not, they are not equivalent. If the first one would be 6/8, they would be equivalent, because we can simplify the fractions by 2 and we got 3/4 again. Good luck !
4 0
3 years ago
Read 2 more answers
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