Answer:
a
Step-by-step explanation:
sorry if its wrong i kina just guessed
3/2 is the answer
i say this because you have to think of the problem as
4y=6x
divide the 4
y=6x/4
simplify
3/2
Given:
The graph of a number line.
To find:
The set of values for the given number line.
Solution:
As we move from right to left on a number line the values decreased however as we move from left to right on a number line the values increased.
From the given number line it is clear that there is an open circle at 7 and a close circle at 10. It means 7 is not included in the solution set but 10 is included in the solution set.
From the point 7, the arrow approaching to the left it means all the values less than 7 are included in the solution set, i.e., x < 7.
From the point 10, the arrow approaching to the right it means all the values greater than 10 or equal to 10 are included in the solution set, i.e., x ≥ 10.
Solution set : x < 7 or x ≥ 10.
Therefore, the correct option is A.
Answer: 2.12 × 
The coefficient (in green) will be 2.12
Step-by-step explanation:
Scientific notation is written by multiplying the number by a power of 10. This number is a number between 1 and 10.
Since this is a smaller number, we will be multiplying it by a power of 10 to a negative number.
To get this value to a number between 1 and 10, we must multiply it by 10 3 times (also shown as 10³) which gives us 2.12.
To get back to the original value, we multiply this by . This gives us our answer.
Answer:
x = 20
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Using ΔAHC , then
∠ACH = 180 - (2x + 100) = 180 - 2x - 100 = 80 - 2x
∠ECD = ∠ACB ( vertical angles are congruent ), thus
∠ECD = ∠ACH + ∠HCB, that is
3x = 80 - 2x + x
3x = 80 - x ( add x to both sides )
4x = 80 ( divide both sides by 4 )
x = 20
