Answer:
Step-by-step explanation:
Area=1/2(bh)
b=x
height=2x-2, units meters
30=(1/2)bh
60=bh=x(2x-2)
2x^2-2x=60
2x^2-2x-60=0
x^2-x-30=0
(x-6)(x+5)=30
x=6 as only positive root.
2x-2=10
Their product is 60 m^2, half of which is 30 m^2
The base is 6 m; the height is 10 m.
Answer:
380 different ways
Step-by-step explanation:
We can solve this problem using a permutation formula, as the order in a group of two students matter.
So, for this problem, we have 20 students and want to form groups of 2, so we have a permutation of 20 choose 2:
P(20,2) = 20! / (20-2)! = 20! / 18! = 20 * 19 = 380 different ways
Another way to solve this problem is:
For the first student being chose, we have 20 students available, and for the second student, we have just 19, as one was already chose, so the number of ways to choose these two students is 20 * 19 = 380
Step-by-step explanation:
Which one is the height?¿
The formula is
b1+b2 divided by 2 times the height
That's the best I can do for you atm atleast.
<span>
<u><em>Answer:</em></u>The ratio is 6 : 1
<u><em>Explanation:</em></u><u>To find the ratio, we first need to make the units consistent.</u>
I will convert all units to "months"
we know that one year has 12 months, therefore:
3 years = 3 * 12 = 36 months
6 months is simply equal to 6 months
Now, to get the ratio, we will simply <u>divide the two quantities and simplify</u> as follows:
36 months to 6 months = </span>

<span> = </span>

<span> = </span>

<span>
Based on the above, the ratio is 6:1
Hope this helps :)</span>