Answer:
x = 21°
Step-by-step explanation:
Vertical angles have the same measures, therefore:
3x - 30 = 2x - 9
x - 30 = -9
x = 21°
Answer:
Yes, they are congruent to one another, ASA
Step-by-step explanation:
The side that they share is congruent, and it is the included side, so Angle Side Angle is used here.
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Answer:
if your solving for N= 1/18x + -1/6y
if your solving for X x=18n+3y
Step-by-step explanation:
Let's solve for n.
x−3y=18n
Step 1: Flip the equation.
18n=x−3y
Step 2: Divide both sides by 18.
if your solving for y then its
Answer:
416 (3 s.f.)
Step-by-step explanation:
To multiply decimals, begin by multiplying the numbers as if there is <u>no decimal</u>:

Count the number of digits <u>after</u> the decimal point in each factor:
- 128.5 → 1 digit after the decimal point.
- 3.24 → 2 digits after the decimal point.
Therefore, there is a total of 3 digits after the decimal points.
Put the same number of digits after the decimal point in the product.
Therefore, the solution is to the multiplication is:
The factor with the <u>fewest signification figures</u> is 3.24.
This number has 3 significant figures.
Therefore, the solution to 3 significant figures is: