Answer:
Step-by-step explanation:
-3 divided by -2/5
-3÷-2/5
-3×-5/2
15/2=7.5
Answer:
387 km
Step-by-step explanation:
The length of AC, b can be obtained using the cosine rule ; using the cosine relation:
b² = a² + c² - 2ac CosB
b² = 250² + 185² - 2(250*185) Cos125
b² = 62500 + 34225 - 92500 * −0.573576
b² = 96725 + 53055.820
b² = 149780.82
b = sqrt(149780.82)
b = 387.01527
b = 387 km (nearest whole number)
Answer: 15
a=5, b=3
3a= 3x5= 15
A.
Start by factoring out an x and then you have a standard trinomial, which you can factor by examining the factors of the final number that add up to the middle number.
I'll interpret the given statement as
where means "not <em>x</em>", means "or", and means "and".
If <em>r</em> is false, then is true.
<em>s</em> is given to be false, so (basically "true and false") is false.
If <em>s</em> is false, then is true.
Then (i.e. "true or false") is true.
Take the negation of that and you end up with a false statement.
If you intended "~r < s" to mean something like "not r is implied by s", so the original statement is actually
then is true because <em>s</em> is false. Then is still true, so the statement still ends up being false.