# Questions Asked onApril 23, 2016

The bases of trapezoid $ABCD$ are $\overline{AB}$ and $\overline{CD}$. We are given that $CD = 8$, $AD = BC = 7$, and $BD = 9$. Find the area of the trapezoid.

2. ## Maths

A rectangular room 8m long by 5m wide contains 129m square of air. Calculate the height of the room. I assume that the above question is a trick question. Since the room is 8m high, it then goes that the height I 8metres. Thank you.

3. ## math

A man invests rs6750,partly in shares of 6% at rs140 and partly in shares of 5% at rs 125.if his total income is rs280,how much has he invested in each?

4. ## math

which pair of expressions are equivalent A 4(6X) and 10X B 4(6X) and 24X C 4X + 6X and 10 XX D 4X + 6X and 24X

5. ## geography

Settlement: Centrifugal forces drives people and businesses to move out of this land-use zone. Write a paragraph (approximately 12 lines) supporting this statement by referring to factors that cause businesses to move away from this land-use zone.

6. ## Chemistry

Methane (CH4) is the major component of natural gas. 2.5 moles of methane were placed in a commercial colorimeter and subjected to a combustion reaction. The reaction released 2800 kJ of energy. Compare this energy value to the energy values of paraffin

97. ## English

so people, what can be done to make surbubian people allowd sloughting retual in the surbubes?

98. ## Psychology

Apply two psychological principles to real life situations

99. ## Math

If I have a pool and it is 16 feet round and 4 fthe deep, how many gallons of water would that hold?

100. ## life orientation

Identify your human rights violation or discrimination and explain in and introductory paragraph why you choose the specific human rights or discrimination

101. ## life science, maths lit,agric,geography, life orie

Criticality discuss six way that human Rights violation influence individually, groups and broader south African community

102. ## Life orientation

How corruption and fraud impact in South Africa

103. ## chemistry

Hi, I am trying to find the pH of a buffer I created and then added NaOH to. This is my data: total volume of solution 34.2 mL [NaOH] before reaction 6.0 [HOAc] before reaction .8 M [OAc-] before reaction .4 M [HOAc] after reaction 0 M [OAc-] after

104. ## Geography

Evaluate the physical,social and economic consequences of fraud and corruption impact negatively in the country For example service delivery,tax,expense of trial

105. ## geomentry

points P and Q are on line segment AB on the same side of the midpoint of AB .Point P divides AB in the ratio 2:3 and Q divides AB in the ratio 3:4.If PQ =2 ,then the length of segment AB is ________

106. ## chemistry lab

so i'm trying to finish my lab and im trying to solve for the concentration, and the lab handout says "remember all the cl- from the original sample ended up in 100 mL of solution" The concentration i solved for (from my graph) was 9.8 ppm Cl....how would

107. ## Computer science

How do I count how many arrays there is - what do I add to the code? I have managed to create 2 buttons and the top button works and changes the fruits into alphabetical order but the second button doesn't work - please help! Press the button to change the

108. ## Chemistry

In the lab we synthesised nickel (II) ammine tetraflouroborate using hydrated nickel chloride and ammonia then this solution was added to a slotion of ammonia and ammonium tetraflouroborate,now im struggling to write a fully balanced chemical

109. ## Natural science

What happens to the level of the salt solution in the distilling flask ? Explain why this happens

110. ## accounting

how to calculate depreciation using carrying value method?

111. ## maths

Find the median of 3,6,10,13, 14,17,19 and 22

112. ## Math

A biased coin is tossed 3 times. The probability that the coin will land on heads is 0.6 The probability that the coin will land on tails three times is less than 0.1 Is this correct? Show all your working.

113. ## Chemistry

What mass of CaO, can get by the decomposition of 250 g of CaCo3 with 80% purity?

114. ## algebra

Select the first five terms in the geometric sequence an=(3)n−1, starting with n=1

115. ## Chemistry

Calculate the concentrations of Cd2 +, [Cd (CN) 42] and CN at equilibrium when they dissolve 0, 42mol of Cd(NO3)2, molarity= 2.50 M Kf =7.1x10^16