# Posts by Rodrigo

Total # Posts: 17

**Math**

Li making beaded necklaces.for each necklace,she uses 27 spacer beads, plus 5 glass beads per inch of necklace length. write an equation to find how many Li needs for each necklace.

**Physics**

I was given this problem, and are having problems. I am taking AP Physics and I want to be able to understand the concept. Thank you for your help. A block of mass m = 3.65 kg is attached to a spring (k = 27.5 N/m) by a rope that hangs over a pulley of mass M = 7.30 kg and ...

**math**

Find the total capacity of twenty-five containers of cranberry juice if each bottle holds 5 quarts 1 pint 6 oz

**Calculus**

lim y->2 (sqrt(y+2)-2)/(y-2)

**Calculus**

lim y->2 (sqrt(y+2)-2)/(y-2)

**physics**

A car of mass 1410 kg traveling at 26 m/s is at the foot of a hill that rises 115 m in 4 km. At the top of the hill, the speed of the car is 14 m/s. Find the average power delivered by the car's engine, neglecting any frictional losses.

**physics**

A golf ball is hit with an initial velocity of 50 m/s at an angle of 39 degrees above the horizontal. How far does it travel?(horizontal distance)(g = 9.8 m/s2). I made a right triangle. Found that Vi(x)=38.857, Vi(y)=312.466, both Vf's were 0, although Vf(y) is taking ...

**Physics**

A ball thrown into the air lands on the same horizontal level, 31 m away, and 2.65 s later. Find the magnitude of the initial velocity.

**statistics**

A job in an insurance office involves telephone conversations with policyholders. The office manager estimates that about half of the employee’s time is spent on the telephone. How many observations are needed in a work sampling study to estimate that time percentage to ...

**Chemistry**

Given these chemical reactions: Ca^(2+)(aq) + 2IO3^(-)(aq) → Ca(IO3)2(s) Ca(NO3)2·4H2O(s) → Ca^(2+)(aq) + 2NO3^(-)(aq) + 4H2O(l) KIO3(s) → K^(+)(aq) + IO3(-)(aq) Calculate the masses of Ca(NO3)2·4H2O(s) and KIO3(s) required to make 10 g of Ca(...

**Biology**

A trait whose expression is affected by the presence of sex hormones is said to be a. sex-influenced b. sex-linked c. X-linked d. Y-linked I read the section multiple tmes, and the book doesn't really specify. Thanks in advance if you could answer it!

**algebra**

Let f(x)= -3x^4+79x^2-3x+1 ___________________ 5x^4+19x^4+2x+5 Discuss the short run behavior for f(x)and the long run for f(x).

**math 162**

Let f(x= -3 ________________ (x+2) (2x-5) Specify any zeros, and asymptotes of f(x).

**college algebra**

Let f denote an odd function and g an odd function. Decide whether the function h(x)=g(x) f(x) is even or odd.

**math 162**

Let f(x)= -3x^4+79x^2-3x+1/ 5x^4+19x^3+2x+5. Discuss the short run behavior for f(x) and the long run behavior for f(x).

**math 162**

Let f(x)= -3/(x+2)(2x-5).How do i specify any zeros, and asymptotes of f(x).

**Math**

(Preferably answered by tomorrow night - that's plenty of time.) Ray OB is the bisector of angle AOC and ray OC is the bisector of angle BOD. m of angle AOC = 60. Find m of angle COD. *m means "measure" Write a proof in two-column form. Given: ray DC is ...