Total 27inch^
Calculation of 1 rectangle +1 triangle(11-7=4 is the base)
triangle x^+4^=5^
x^+16=25
x^=9
x=3 (height=3)
Sides of triangle Base=4 Hypotenuse=5 height =3
area 1/2 4 x 3 =2x3=6
Area triangle =6
Area Rectanglel 7x3=21
21+6=27 inch^ total area
Answer:
Step-by-step explanation:
<u>Given system:</u>
<u>Substitute x into the second equation:</u>
- 10(y + 4) + 2y = 16
- 10y + 40 + 2y = 16
- 12y = -24
- y = -2
<u>Find x:</u>
Step-by-step explanation:
the solutions for a quadratic equation is
x = (-b ± sqrt(b² - 4ac))/(2a)
in our case
a = 1
b = -4
c = k
x = (4 ± sqrt(16 - 4k))/2 = 2 ± sqrt(4 - k)
x1 = 2 + sqrt(4 - k)
x2 = 2 - sqrt (4 - k)
x1 = 2 + x2
2 + sqrt(4 - k) = 2 + 2 - sqrt(4 - k)
2×sqrt(4 - k) = 2
sqrt(4 - k) = 1
4 - k = 1
k = 4 - 1 = 3
x1 = 3
x2 = 1
Answer:
s
Step-by-step explanation: