5x = 2x+12 because in similar triangles, the angles are ALWAYS equal
3x=12
x=4
2(4)+12=A
A=20 degrees
Answer:
Figure D. (A)
When you flip the figure across like a mirror, it remains the same shape as the other side. An easy way to determine this is by cutting a line down the middle.
Reflectional symmetry states that if there exists at least one line that divides a figure into two halves such that one-half is the mirror image of the other half.
Edit: Typo!
Answer:
-120-x
Step-by-step explanation:
Given:
This is the same as previous one. Recall modulus property:
Keep in mind that |x+a| and |a+x| are equal via addition property.
Since the question gives interval of x < -120:
Therefore, the expression is -120-x
Answer:
Probability of getting a head and 2 is 1/2 × 1/6 = 1/12
Step-by-step explanation:
Probability of getting a head when you toss a coin is 1/2
Probability of getting a 2 when you roll a six sided die is 1/6
These are two independent events meaning that getting a head when you toss a coin does not affect getting a 2 when you roll a die.
The probability of getting a head and a 2 is 1/2 × 1/6 = 1/12.
Answer:
Hypergeometric distribution
Step-by-step explanation:
the hypergeometric distribution is a probability distribution that is discrete. It describes the probability of success without replacement, from a finite number of objects.
Hypergeometric distribution is used for relatively small population without replacements.
