Answer:
Each point reflected across the x-axis, goes from (x, y) --> (x, -y), which means that we keep the x coordinate the same, but multiply the y coordinate by -1:
L (-2, 4) --> (-2, -4)
M (2, 1) --> (2, -1)
N (-4, -3) --> (-4, 3)
Step-by-step explanation:
Answer:
It is 9a2 − 30a + 25 The other answer is a prime number.
(
3a
−5)^2
Step-by-step explanation:
Answer: There are 1400 different combinations.
Step-by-step explanation:
The conditions are:
we have 4-digits: abcd.
all the digits are different.
a is an odd number, and b is an even number.
Then, for a, we have the options 1, 3, 5, 7 and 9 (so we have 5 options).
for b, we have the options 0, 2, 4, 6 and 8 (so we have 5 options).
for c, we can have odd or even numbers, so we have 8 options ( remember that there where 2 numbers already taken away, this is why we have only 8 options).
for d we have 7 options (because 3 numbers are already taken).
Then the number of combinations is equal to the product of the number of options for each selection:
C = 5*5*8*7 = 1400
Answer
no number from the following list can be expressed as the sum of three squares: 7, 15, 23, 31, 39, 47, ect... so only once
Step-by-step explanation:
nono dont touch me there this is my nono square
Answer:
Start
A2
B2
B1
C1
C2
D2
D3
D4
C4
END
Step-by-step explanation:
Start (A3)
x is equal to 141 because they are alternate interior angles.
A2. x is equal to 39 because they are corresponding angles.
B2. x would be supplementary to 41 because the angle that x supplements is corresponding to 41.
41 + x = 180 due to the linear pair postulate. Therefore, x = 139.
B1. x would be supplementary to 82 because they are consecutive exterior angles.
82 + x = 180 due to the linear pair postulate. Therefore, x = 98.
C1. x = 102 due to the vertical angles theorem.
C2. x would be supplementary to 130 because the angle that x supplements is equal to 130 (Alternate Exterior Angles).
130 + x = 180, x = 50.
D2. x = 74, corresponding angles.
D3. x = 83, corresponding angles.
D4. x = 95, corresponding
C4. x is supplementary to 18 because of the consecutive interior angles theorem.
x = 162
END