mohammad

This page lists questions and answers that were posted by visitors named mohammad.

Questions

The following questions were asked by visitors named mohammad.

COMPARE A HYPOTHESIS WITHA THEORY
16 years ago
Water flows through a 1.2 cm diameter pipe into a 155 L bathtub, which it fills in 8 min.What is the speed of the water in the pipe?
13 years ago
COULD SOME OF WITH DEGREE IN MATHS HELP ME TO SOLVE THIS SIMULTANEOUS EQUATION PLEASE, PLEASE ? I HAVE RIED DIFFERENT METHODS BUT IT CANNOT GET THE CORRECT ANSWER, AS IN THE BOOK. X-3/4 -Y-2/5 = -1/4 (1) 4-X/3+ 3-Y/2 = - 13/20 (2) 5x-15-4y+8= -1 5x-4y=17-...
10 years ago
HI STEVE, THANKS for your reply back it was the wrong answer the one you worked, yes a hard question, here is an example of simultaneous questions. x-2/3 + y-1/4 =13/12 (1) 2-x/2 + 3+y/3 =11/6 (2) first step is to get rid of fractions. in equation (1) the...
10 years ago
Can someone help me to solve these questions please? 1) 3^x+1=9^x. Find the value of x. 2) find the value of m for which. 3^2M^-1=243.
10 years ago
A picture hangs on the wall suspended by two strings, as shown in the figure, with θ = 65°. The tension in string 1 is 1.3 N. (a)Is the tension in string 2 greater than, less than, or equal to the tension in string 1? Explain. (b) Verify your answer to pa...
10 years ago
what volume of carbondioxide is produced when 10g of Hcl reacts completely with caco3 caco3+2HCl=cacl2+H2o+Co2 moles ofHCl=10/36.5=0.27 volume:volume 2HCl:CO2 2:1 24000*2:24000 480000:24000 2700:x x=1350cm3
8 years ago
Calculate the mass of hydrogen formed when 25 grams of aluminum reacts with excess hydrochloric acid. (AM of Al= 26.9g/mol) 2Al + 6HCl ----> Al2Cl6 + 3H2
4 years ago
Why is it important to make sure there are no air bubbles in the tip of a buret below the stopcock before using the buret to dispense a solution? What would be the % error if there were a 0.5 mL air bubble in the tip of a buret, and this air bubble was di...
4 years ago
1. A volumetric pipet is stamped by the manufacturer with “TD 25 10 mL”. Explain what this means.
4 years ago
The table shows the number of points scored by a basketball team during their first several games. Find the mean of the number of points scored? Standard code : S.ID.2 (1 Point)
4 years ago
Tania recorded the number of butterflies she saw on her daily runs each day for a week. The numbers are: 1, 8, 2, 2, 5, 6, and 4. Find the mean, median, and mode of the data. Which measure(s) are appropriate to accurately summarize the data?
4 years ago

Answers

The following answers were posted by visitors named mohammad.