Answer:
No, it's actually 100
Step-by-step explanation:
If you put brackets in the right places you'll see (3*20)+(4*10)=60+40=100
X²+15x+36<0
at first solve quadratic equation
D=b²-4ac= 225-4*1*36= 81
x=(-b+/-√D)/2a
x=(-15+/-√81)/2= (-15+/-9)/2
x1=(-15-9)/2=-12
x2=(-15+9)/2=-3
we can write x²+15x+36<0 as (x+12)(x+3)<0
(x+12)(x+3)<0 can be 2 cases, because for product to be negative one factor should be negative , and second factor should be positive
1 case) x+12<0, and x+3>0,
x<-12, and x>-3
(-∞, -12) and(-3,∞) gives empty set
or second case) x+12>0 and x+3<0
x>-12 and x<-3
(-12,∞) and (-∞,-3) they are crossing , so (-12, -3) is a solution of this inequality
Answer:
length = 8 feet
width = 4 feet
Step-by-step explanation:
l x w = 32
2l + 2w = 24
l = 8
w = 4
Hi Evangrayson8,
To get the answer to this we need to divide. So, 48 ÷ 1261 would be 0.03806502775.
Hope this helps
Cupkake~
Answer:
$86.60
Step-by-step explanation:
1. Subtract 8-3=5
2. Multiply 3*8.95=$26.85
3. Multiply 5*11.95=$59.75
4. Add $26.85+$59.75=$86.60
