Answer:
20
Step-by-step explanation:
substitute first to get:
6 + (3·4 - 5)2
multiply 3 and 4 to get 12:
6 + (12 - 5)2
subtract 12 and 5 to get 7:
6 + 7(2)
multiply 7 and 2 to get 14
6 + 14 = 20
Answer:
sounds like an equilateral triangle.
57/3 = 19. can you send a pic at all?
Answer:
y = 10x - 58
Step-by-step explanation:
y-y1 = m (x-x1)
m= 10
x1= 6
y1 = 2
y - 2 = 10 ( x - 6)
y - 2 = 10x -60
y = 10x - 58
Using equations to solve the word problem, Katherine's age is 8 years
<h3>Word Problem</h3>
Word problem are often mathematical problem that are represented in words and sometimes can be solved using an equation.
To solve this problem, we have to represent the problem using mathematical equations;
Let;
Katherine's age = x²
Alexandra = 5(x + 1)
Sum of their age = 109
5(x + 1) + x² = 109
5x + 5 + x² = 109
x² + 5x - 104 = 0
Solving for the equation; x = 8
Katherine's age is 8
Learn more on word problem here;
brainly.com/question/13818690
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