Circonferenza non centrata:
C = 2πr
Answer:
Step-by-step explanation:
its b just took the test
Answer:
2 m
Step-by-step explanation:
The length and width of a rectangular garden is 10 m and 3 m respectively.
He will double the area of the garden by adding the same number of meters to both the length and the width. Area = 2(10 × 3) = 60 m².
Let x is amount of increase in the length and width such that area will be :
(10+x)(3+x) =60
30+10x+3x+x² = 60
x²+13x-30=0
x²+15x-2x-30=0
x(x+15)-2(x+15)=0
x=2 and x = -15
Neglecting negative value, he aded 2 m toboth length and width of the garden.
Answer:
3^x+12x-4
Step-by-step explanation:
(f+g)(x) = f(x) + g(x) = 3^x + 10x + 2x - 4 = 3^x + 12x - 4
Answer: $5
Step-by-step explanation:
For every $3 raised by basketball players, football players would raise $2.50.
If basketball players raised $6 therefore, we can use direct proportion to find out what football players raised:
3 : 2.50
6 : x
Cross multiply:
3x = 15
x = 15 / 3
x = 5
Football players raised $5.
