Answer:
<em>In 5 years the product of their ages will be 208</em>
Step-by-step explanation:
The age of two children is 11 and 8 years.
Let's call x the number of years ahead.
We need to find when the product of their future ages is 208. The 11 years old child will be 11+x years old and the other child will be 8+x years, thus:
(11+x)(8+x)=208
Operating:
Simplifying:
Factoring:
(x-5)(x+24)=0
Solving:
x=5, x=-24
The negative solution is not valid, thus x=5
In 5 years the product of their ages will be 208
The average speed of his trip is = 12 mile/ hour
The total distance covered by the driver = 240 miles
The rate at which he traveled = 12 miles per hour
Therefore, the time he used to cover his distance
= 240/12
= 20 hrs
But average speed = distance/ time
= 240/ 20
= 12 miles/ hour
Therefore, the average speed of his trip is = 12 mile/ hour
Learn more here:
brainly.com/question/11753352
Sorry if i’m wrong or too late but i think you would have to divide 7 by those numbers
Answer: The coordinate of the center is (4,-3)
radius = 8
Step-by-step explanation:
Given ;
re - arranging , we have
comparing with the general equation
This means that
also
The coordinate of the center is (-g,-f)
Therefore;
the coordinate of the center = (4,-3)
the formula for calculating r is given by:
METHOD 2
using completing the square method , we have
completing the square , we have
comparing with the general equation
where a and b are the coordinate of the center , that is
the coordinate of the center is ( 4 , -3)
