Answer:
m∠ABC = m∠BED; Corresponding Angles Theorem
Step-by-step explanation:
<u>Given:</u> line BC is parallel to line ED m∠ABC = 70° m∠CED = 30°
<u>Prove:</u> m∠BEC = 40°
Statement Justification
1. line BC is parallel to line ED - Given
2. m∠ABC = 70° - Given
3. m∠CED = 30° - Given
4. m∠BEC + m∠CED = m∠BED - Angle Addition Postulate
5. m∠ABC = m∠BED - Corresponding Angles Theorem
6. m∠BEC + 30° = 70° - Substitution Property of Equality
7. m∠BEC = 40° Subtraction Property of Equality
Answer:
12.04m = l
Step-by-step explanation:
We can use the Pythagorean theorem
a^2 + b^2 =c^2
where a and b are the legs and c is the hypotenuse
12^2 + 1 ^2 = l^2
144 + 1 = l^2
145 = l^2
Take the square root of each side
sqrt(145) = sqrt(l^2)
12.04159458 = l
To the nearest hundredth
12.04m = l
The 1, 2, 3 I’m not sure bout the 4th one
X/58.65 = 15/100
(58.65*15)/100 = tip
Step-by-step explanation:
When x = -2, x + 2 = (-2) + 2 = 0.