Answer:
A man drove x miles per hour for 3 hours and (2x-60) miles per hour for the next 4.75 hours.Express the total distance traveled in terms of x.
Total distance covered by the man in terms of 'x' = (12.5x-285)miles
Step-by-step explanation:
Given:
Speed of a man = 'x' miles/hour
Time taken = 
hour
So, distance = product of speed and time.
Distance covered in term of 'x' 
Now,
Speed = 
miles/hour
Time taken= 
hours
Distance 
= 
= 
= 
miles
Total distance covered by the man = Summation of 
and 
= 
= 
miles
So the total distance covered by the man in terms of 'x' = (12.5x-285) miles.
Answer:
The distance of UFO from KA-1212 is 1229.7 km.
Step-by-step explanation:
We are given that,
Distance between the satellites = 900 km
Angle made by the satellite KA-1212 = 60°
Angle made by the satellite SAL-11 = 75°
So, from the figure below,
The third angle is given by = 180° - (60°+75°) = 180° - 135° = 45°
Then, using the law of sines, we have,
<h3>Thus, the distance of UFO from KA-1212 is 1229.7 km.</h3>
Answer:
or 
Step-by-step explanation:
To solve the quadratic equation we must factor the expression
Look for 2 numbers that when you multiply them, obtain the result -100 and when you add them, obtain the result -15.
You can verify that these numbers are -20 and 5
Then the polynomial factors are
The zero product property says that if two terms 
then
or 
So
or 
or
To begin, if the base is a square, then each side of this square would be 3 ft. there are 4 traingles, and the area of a triangle is 1/2bh, the height being the slant height and the base being one side of the square. Therefore, the surface area is 4(1/2)(3)(8)+9=57 ft^2
Answer:
See below
Step-by-step explanation:
1-0+0-2+1=0, so since 0/11=0, it's divisible by 11
The rule for divisibility by 11 is that you subtract then add then subtract then add and so on, and if you get a number divisible by 11 or equal to 0, then it's divisible by 11.
Hope that made sense.
