Answer:
x = 21
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
Here n = 12 , then
sum = 180° × 10 = 1800°
Each of the 12 interior angles = 1800° ÷ 12 = 150
Then
7x + 3 = 150 ( subtract 3 from both sides )
7x = 147 ( divide both sides by 7 )
x = 21
Answer:
B
Step-by-step explanation:
In the attached file
product means multiply so I would use 4x
then add 6 would become
4x+6
Answer:
Step-by-step explanation:
We have to note that there are 4 kings in a deck of 52 cards.
This makes the probability of choosing a king the first time .
We now know that we can choose another king from the deck, but it's important to note that it's not a chance. We now only have 51 cards in the deck, and 3 kings left. This means the probability of choosing a king now is .
To find the probability of doing both these, we need to multiply the fractions.
Hope this helped!
Answer:
A) x = 12
Step-by-step explanation:
if its a right angle? then the angle in total is 90 degrees,
subtract the 35 from 90 to get 55 degrees,
4x + 7 = 55 solve this
4x = 48
x = 12