Answer:
B=-6
Step-by-step explanation:
-21+9=-12
-12/2=-6
You can check it.
Answer:
C
Step-by-step explanation:
4x+3y=-24
eq. of any line perpendicular to given line is
3x-4y=a
4y=3x-a
y=3/4x -a/4
where a is an arbitrary constant.
Answer:
they have to be congruent
Step-by-step explanation:
both rectangles have the same perimeter which means there Identical
Answer:
Michael (m) practiced 7 hours and Gen (g) practiced 5
Step-by-step explanation:
g+m+2=12
-2 -2
g+m=10
10 divided by 2 is 5
They both practiced free throws for 5 hours. Michael practiced two hours more that Gen. 5+2=7. Therefore, Michael (m) practiced 7 hours and Gen (g) practiced 5.
Answer:
57.1%
Step-by-step explanation:
We know that a coin has only two sides, heads or tails. Therefore if of the 84 times, 36 times he fell in heads, the other times he fell in tails.
84 - 36 = 48 times fell in tails.
Therefore to calculate the percentage that fell in tails, it would be the ratio between the number of times it fell in tails and the total number of experiments:
48/84 = 0.571, and that is 57.1%
Which means that 57.1% of the times the coin was thrown fell into tails.
