math
solve the following system of equation 8x+9y=-19 -3x+7y=-24
math help
solve the following system 8x+19=-19 -3x+7y=-24
Chemistry
Someone please answer this ;(
physics
(a) Suppose a bimetallic strip is constructed of copper and steel strips of thickness 1.1 mm and length 29 mm, and the temperature of the strip is reduced by 5.1 K. Determine the radius of curvature of the cooled strip (the radius of curvature of the interface between the two ...
physics
A 1-kg mass (the blue mass) is connected to a 9-kg mass (the green mass) by a massless rod 67 cm long, as shown in the figure. A hole is then drilled in the rod 40.2 cm away from the 1-kg mass, and the rod and masses are free to rotate about this pivot point, P. Calculate the ...
physics
Careful measurements of local variations in the acceleration due to gravity can reveal the locations of oil deposits. Assume that the Earth is a uniform sphere of radius 6370 km and density 5500 kg/m3, except that there is a spherical region of radius 1.7 km and density 944 kg...
physics
i am unable to get the right answer..please help
CHEMISTRY
What is the reagent responsible for the formation of H2S in the qualitative analysis of group II? when the cations are separated into subgroups, what is the purpose of the potassium hydroxide,KOH?
HELP NOW MATH
4n − 5 = 3n + 2 I know its 6 but i don't know how to solve it.!!!!!!!!@@@23q9
Help
Fibrin is produced when the blood components called what start chain reaction
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