Answer:
1.30 , 3.01 , 3.31 , 10.03
Step-by-step explanation:
1.30 is the lowest number , 1.30 is the second lowest number , 3.31 is the second highest number 10.03 is the highest number
Um i dont understand your question
let
d1 = 250 mi the distance that Mattie Evans drove
v1 = the speed of Mattie Evans
d2 = 1300 mi the distance the plane traveled
v2 = the speed of the plane
The speed of the plane was 190 mph faster than the speed of the car:
v2 = v1 + 190
since time = distance/speed and they both traveled the same time we have
d1/v1 = d2/v2
250/v1 = 1300/v2 cross multiply
250v2 = 1300v1 divid eboth sides by 50
5v2 = 26v1
by solving the system of equations:
v2 = v1 + 190
5v2 = 26v1
we find
v1 = 45.24 mph
v2 = 235.24 mph
Answer:
umm
Step-by-step explanation:
13
Answer:
x = 2 or x = 3
Step-by-step explanation:
we have the expression:
First we must remove the square root, for this we pass the 2 to the left:
and we move the square root to the left as an exponent of two:
We develop the square binomial:
and clear the right side for the equation to be equal to zero:
combining like terms:
Because it is a quadratic equation we will have two answers, which we can find by the general formula or by factoring:
To factor we open two parenthesis, both with an x, and look for two numbers that when multiplied result in +6 and when added result in -5, those numbers are -2 and -3, so the factoring is:
And now we use the Zero Product Property, whic is if two thing are multiplied and result in zero one of the two or both things must zero, in this case:
and
the solutions are: x = 2 or x = 3; both satisfy the equation.
