Answer:
Step-by-step explanation:
Altura = 11.312 pies
i) La escalera que descansa contra la pared formará un triángulo en ángulo recto.
ii) la escalera formará la hipotenusa del triángulo rectángulo dado por h = 12 pies.
iii) La base está dada por 4 pies.
iv) de la fórmula del triángulo en ángulo recto.
base = 
Answer:
The dimensions of the screen are
Length:102 feet
Width: 82 feet
Step-by-step explanation:
we know that
The area of the rectangle (movie screen) is equal to

where
L is the length
W is the width
we have

so
----> equation A
The screen is 20 feet longer than it is wide.
so
---> equation B
substitute equation B in equation A

solve for W

solve the quadratic equation by graphing
the solution is W=82 ft
see the attached figure
Find the value of L

therefore
The dimensions of the screen are
Length:102 feet
Width: 82 feet
Answer:
triple the answer
Step-by-step explanation:
.1×250=25
.3×250= 75
25×3=75
The son is 8. I’m not sure if I’m right hope this helps
1500 + 0.45x < 1.70x
1500 < 1.70x - 0.45x
1500 < 1.25x
1500/1.25 < x
1200 < x.....so she would have to sell 1201 cards to make a profit