D=228
when 2 numbers or variables are next to eachother it means you need to multiply. So in this case r=57 and t=4 and we mulitply. 57 x 4 = 228. So the answer is 228. Hope this helps and have a great day!
The answers to the questions
Answer:
0.08
Step-by-step explanation:
5^-2 x 2
1/25 or 0.04 x2
0.04 x 2= 0.08 or 2/25.
Answer:
6
Step-by-step explanation:
original equation: 
put into mixed numbers: 
find the lowest common denominator: 40
adjusted to LCD: 
152+ 95= 247
247/40= 6.175
0.175 as a fraction is
answer: 6
solution:
we are consider the following function,
f(x)=3x+k,x\leq 3
=kx^{2}-6,x>3
\lim_{x\rightarrow 3^-}(3x+k)=9+k
\lim_{x\rightarrow3^+}
(kx^{2}-6)=9k-6
so the left and right limits are equal.
therefore, the function is continuous at x=3
so,the therom of the function is continous at x=3
9k-6=9+k
8k=15
k=15/8
=1.875
therefore,the value of k=1.875
