Answer:
5
Step-by-step explanation:
because I said so damit
Step-by-step explanation:
(x+2y)²=x²+4xy+4y²
...........
The values of k that will cause the system of equations to have no solution is; k = 7 and 21
We are given the simultaneous equations;
6x - 4y = 14
3x - 2y = k
Now, for both equations not to have a solution it means that x and y can't be made to be subjects.
Now, by inspection see see that the left hand side of the second equation when multiplied by 2 gives the left hand side of the first equation.
By implication, for both equations not to have a solution, k must also be multiplied by 2 to give 14.
Thus;
2k = 14
k = 14/2
k = 7
Also, since 21 is 1.5 multiplied by 14, it means that when we make 21 to be k, there will also be no solution.
Read more about simultaneous equations at;brainly.com/question/17671517
Answer:
None of the above
Step-by-step explanation:
-9 tells the distance between her hand and the keys
Answer:
t=5
Step-by-step explanation:
Hello There!
the given angles are vertical angles therefore they are congruent
so 110=4t+90
step 1 subtract 90 from each side
110-90=20
now we have
20=4t
step 2 divide each side by 2
20/4=5
so were left with
t=5