We want the seconds to be converted in hours to work out the speed, so:
7200Seconds /60 / 60 =2 Hours
150 / 2 = 75
Therefore the car travels at 75kmh.
Answer:
7 4/27
Step-by-step explanation:
Answer:
1. A) -6x^2+11x-4
2. C) (3x+7y)(3x-7y)
3. A) (x+7)(x+2)
4. not sure. D. 2 nonreal solutions
5. C) 11
Step-by-step explanation:
1. Multiply them together one by one. First multiply -3x by 2x-1 and then 4 times 2x-1.
2. The factored equation had to have one positive sign and one negative so when you got plus or negative 21xy, it will cancel out by a 21xy of the opposite sign
3. each parenthesis needs to have x because the equation has x^2. And the remaining numbers have to be numbers that sum up to 5. and play with the signs till you figure out the equation.
4. You have to do the discriminant thing that's like (-b±√b²-4ac)/2a and the degree of the equation shows how many solutions there is going to be.
5. Just try out all your options till you find the right answer.
Answer:
or
27 
Step-by-step explanation:
Any regular whole number (37 for example) is over one so it would look like 
. Multiplying fractions involve just multiplying the numerators and denominators together, therefore it would look like ×. Now just multiply the top and bottom numbers together and this will leave you with . But if you'd like to make it into a mixed number (more simplified version of ) then you would get 27 .
