Lisa invest $4000 in two types of bonds , bond a and bond b a offers 10%return . lisa invest $x and $y inbond b her tostados investment is 350. the system of linear equations defining the situation is a. x+y=4000and 10x+6y=340 b. x+y=4000and 0.06x+0.1y=340 c. x+y=340and 0.1x+0.06y=4000 d. x+y=4000and 0.1x+0.06y=340 the amount lisa invest ed at the rate of 10%is a.1000 b.1500 c2500 d3500 and the amount she invested at the rate of 6%is a. 500 b1500 c2500 d3000

Asmall (but heavy) particle placed in a glass of water will follow a zigzag motion because the particle will bounce off of the water molecules it meets. this is called brownian motion. a physicist simulates this on a computer, by varying the distance a particle can travel (called the mean free length), on average, before it collides with a water molecule and assigning the change in motion to be one of 8 directions, each with a similar probability. by running the simulated particle (with the same mean free length) many times she determines that it should take 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. next she lets a real particle fall through a glass of water and finds that it took 18 seconds. what does she conclude, and why?

What is the range for 31,39,29,34,37,24,36,33,34,28

Find the value of x. round the length to the nearest tenth