6.3
Yes it’s a decimal but it is still a rational number.
For this case, the first thing we want to do is substitute the value of y = 15 in the equation.
We have then:
15 = -0.08x ^ 2 + 1.6x + 10
Rewriting we have:
0 = -0.08x ^ 2 + 1.6x + 10 - 15
0 = -0.08x ^ 2 + 1.6x - 5
The solutions are:
x1 = 3.876275643042054
x2 = 16.123724356957947
Nearest whole number:
x1 = 4
x2 = 16
were about 15 tons of trout caught in the lake in the years:
1995 + 4 = 1999
1995 + 16 = 2011
Answer:
The year 1999 and the year 2011
Answer:
1.53
Step-by-step explanation:
5.34 - 3.81 = 1.53
Answer:
x = 131,25 m
Step-by-step explanation:
Manufacture the collar of an airbag helmet takes 1,5 m of fabric
Manufacturer is going to make 250 collars
Company only has 65 % of the needed fabric
Total quantity of fabric needed is:
250 * 1,5 = 375 m
If they have 65 % that means that they need 35 % of the total quantity
then, by rule of three
375 ⇒ 100
x ?? ⇒ 35
x = ( 375 * 35)/100
x = 131,25 m
Answer:
-12.1
Step-by-step explanation:
At 1p.m., the temperature is -5.4c, and by midnight, it decreased 6.7c, so take -5.4c subtract 6.7c, and you got -12.1.