Move all terms to the left side and setequal to zero. Then set each factorequal to zero. and you should get x=9/a+b
Answer:
x = 11
Step-by-step explanation:
4x + 7 = 3 (2x - 5)
4x + 7 = 6x - 15
-2x + 7 = -15
-2x = -22
x = 11
the first one the third one and the last
hope this helps if you need any more help let me know
Answer:
1. 155 yd², 2. 379.54 ft², 5. x = 65.82π
Step-by-step explanation:
1. A = (1/2) · (3 + 13) · 8
A = (1/2)(16)(8)
A = 64
A = bh
A = 13*7
A = 91
64 + 91 = 155
155 yd²
2. A = bh
A = 25x25
A = 625
A = πr²
A = 3.14*12.5²
A = 3.14*156.25
A = 490.625
490.925/2 = 245.4625
625 - 245.4625 = 379.5375
379.54 ft²
3. and 4. Sorry, I don't know how to solve these
5. A = πr²
A = 3.14*7²
A = 3.14*49
A = 153.86
x/154 = 153.86π/360
360x = 154*153.86π
360x = 23694.44π
x = 65.8178889π
x = 65.82π
Hope this helps :)
Answer:
60 degrees
Step-by-step explanation:
a+b+c= 180 degrees therefore 5x + x + 3x = 9x
9x=180 (divide) --> x=20
since c = 3x substitute in 20 for x --> 3(20) = 60 degrees for angle c
