Answer:
a rhombus because it has two congruent sides and do not cross each other
<span>2 × 2 × 3 × 5 × 5 × 7 × 61</span>
Answer: -16, 81, 19
Step-by-step explanation:
f(x)=-16x^2+81x+0
19 feet
Answer: 0.8
The volume is 8/45 so a•b•c=8/45
So 2/3•1/3•a=8/45
Multiply 2/3•1/3=0.222222 or 2/9
So 2/9•a=8/45
Divide 8/45 / 2/9= 0.8
a=0.8
Hope this makes sense and it helps!!
<span>n = 11<span>.
Explanation:
Let m be the number of boxes Mark sells and a be the number of boxes Ann sells.
Since Mark sells 10 less than n, m = n-10. Since Ann sells 2 less than n, a = n-2.
Together, they sold n-10+n-2=2n-12 boxes.
We know that they sold less than n boxes, so our inequality would be
2n-12<n.
To solve this, subtract n from both sides:
2n-12-n<n-n; n-12<0.
Add 12 to both sides:
n-12+12<0+12; n<12.
This means there were less than 12 boxes. The next number down is 11; this woks because Mark sold 10 less than n; 11-10=1. Mark sold at least 1 box.
If n=10, however, 10-10=0; this doesn't work, because Mark did sell at least 1 box. </span></span>