Answer:
Step-by-step explanation:
1.Find X
x^2 +8x+15 = (x+5)
-x -x
x^2+7x+15=5
-5 -5
x^2 +7x+10=0
Do the quadralic formula
a=1 b=7 c=10
<u>-7±√7^2-4(1)(10)</u>
2(1)
<u>-7±√49-40</u>
2
<u>-7±√9</u>
2
-7±3
divide 2 by each number
-3.5 ± 1.5
-3.5+1.5 -3.5-1.5
-2 -5
x= -2 x=-5
2. find the length of the garden
-2+5 =3
the length is 3
3. plug in the length to the area of the garden
-5^2+8(-5)+15=3
solve
25-40+15=3
0=3
the width of the garden is 3 square feet
43
48 - 27(since they left) + 22(since they joined) = 43
Question a is = 1/9 one over nine
b= 4 over nine I think
Answer:
1. 5.67232
2. 1.0472
5. 9.94838
6. -5.49779
7. 2.24746048
10. -0.0161006623
Step-by-step explanation:
Those were the only ones I could help on, sorry I couldn't help on the other ones.
