Friday

February 24, 2017
Total # Posts: 8

**Algebra 2 help its urgent please(:**

Jacob is standing 112 m from a building. The angle of elevation when he looks up to the top of the building is 62°. How tall is the building? Enter your answer, rounded to the nearest tenth I'm really confused on this question

*January 31, 2017*

**physics**

The concrete sections of a certain superhighway are designed to have a length of 26.0 m. The sections are poured and cured at 10.0°C. What minimum spacing should the engineer leave between the sections to eliminate buckling if the concrete is to reach a temperature of 45.0...

*December 13, 2014*

**Chemistry**

Calculate the Ksp Ca(OH)2 25cm3 of a saturated solution required 11.45cm3 of 0.1mol/dm3 HCl for neutralization.

*January 3, 2011*

**Chem**

It's 12 moles. Cross multiply 8x6= 48, and then 48/4= 12

*January 3, 2011*

**Chemistry**

The solubility product of Fe(OH)3 is 8.0x10^-40. Calculate its solubility at 35 degrees Celsius in a saturated solution.

*January 2, 2011*

**Chemistry**

The solubility of Ag2S is 2.48x10^-15 mol/dm3. Calculate its solubility product.

*January 2, 2011*

**Chemistry**

The solubility product of PbCl2 at 25 degrees celcius is 1.6x10-5 mol3.dm-9. What is the solubility of PbCl2?

*January 2, 2011*

**Math**

Hi SOCK is a parrallelogram .through a variable point H of[SC] draw the parallel to [OS]which cuts [SK]in E and [OC] in F. the parallel to [OC]cuts [OS]in M and [KC]in N. Find the locus of I midpoint of [HM].

*March 14, 2008*

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