Answer:
To my knowledge of congruency, I would say the answer is A,
Step-by-step explanation:
Hope this helped!!!
The tree is 7.5ft because it's shadow is half it's height.
Answer:
(7y + 3x)(7y - 3x)
Step-by-step explanation:
a² - b² = (a + b)(a - b)
49y² - 9x² = (7y)² - (3x)² {a = 7y ; b - 3x}
= (7y + 3x)(7y - 3x)
Answer:
A
Step-by-step explanation:
So we have the equation:
![x+4=7](https://tex.z-dn.net/?f=x%2B4%3D7)
To solve for x, subtract 4 from both sides:
![(x+4)-4=(7)-4](https://tex.z-dn.net/?f=%28x%2B4%29-4%3D%287%29-4)
The left side cancels. Subtract on the right:
![x=3](https://tex.z-dn.net/?f=x%3D3)
So, the value of x is 3.
And our answer is A.
And we're done!