Answer:
The length of BC = 28 units
Step-by-step explanation:
* In triangle ABC
∵ Angles B and C are congruent
∴ m∠B = m∠C
* In any triangle if two angles are equal in measure, then the triangle is isosceles means the two sides which opposite to the congruent angles are equal in length
∴ AB = AC
∵ AB = 4x - 7
∵ AC = 2x + 7
∴ 4x - 7 = 2x + 7 ⇒ collect like terms
∴ 4x - 2x = 7 + 7
∴ 2x = 14 ⇒ divide both sides by 2
∴ x = 14 ÷ 2 = 7
* Now we can find the length of BC
∵ The length of BC = 4x ⇒ substitute the value of x
∴ The length of BC = 4 × 7 = 28 units
Answer:
What
Step-by-step explanation:
do i have to answer a question
Answer: 271.0638298 is - 8,- 3
Step-by-step explanation:
-3y<2+ +18=
Answer:
The answer is 144
Step-by-step explanation:
Answer:
C: 2^12 is the answer
Step-by-step explanation:
the expression is 16^3=4069 and 2^12=4069 so 2^12 is equivalent to 16^3
