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What is the mass of 3 moles of #"C"_2"H"_2# ?

What is the molarity of 2.4 moles KBr in 4 L solution?

How many atoms of each element are in the chemical formula #Ca(OH)_2#?

Question #34639

How to solve this equation: secx  cosx = sinx? Thank you!

What's the Lowest Common Multiple (LCM) of 7 and 8?

With #2/3# times 12, is the answer positive or negative?

How can I solve this?

If 6b+2a25 = 5 and a/b + 6 = 4, what is the value of (b/a)square?

Determine The Value Of #a# So That When #P(x) = (a^2)(x^3)3ax+1# Is Divided By #x2# There Is No Remainder. Help, Please?

How do you divide #\frac { 6p ^ { 2} + p  12} { 8p ^ { 2} + 18p + 9} \div \frac { 6p ^ { 2}  11p + 4} { 2p ^ { 2} + 13p  7}#?

Which of the following is equivalent to V = IR?

Question #14004

Ariana and her father share her college costs in a ratio of 1:4. What part did she pay of her $12,000 college costs this year?

What is the answer for sin theta cos theta?

C8H18+O2=CO2+H20?

One of the sides of an equilateral triangle is 61. What is the height of the triangle?

What are interstitial compounds?

Cot theta  tan theta/ cot theta + tan theta?

Prove that (tanA/(1cotA))+(cotA/(1tanA))=secA.cosecA+1?

How do you use the binomial formula to expand #(x+1)^3#?

How do you verify the identify #sintheta/csctheta=sin^2theta#?

How do you solve the system of equations by graphing and then classify the system as consistent or inconsistent #2x+y=0# and #5xy=7#?

How to solve #5x^2+20x+13=0# by completing the square?

Question #43efd

Question #5de54

The radius and the height of a right circular cone are in the ratio 5:12 and its volume is 2512 cubic cm. Find the radius and slant height of the cone . (Take pi = 3.14)?

What is the three numbers in an arithmetic progression whose sum is 6 and product is 64?

How do you integrate #int_0^1 1/(1+(x)^(1/2)) dx# ?

Question #d9f0b

Question #2518b

Question #33c99

44.64 is %19.9 of x. what is the value of x?

Which of the following is powered by energy from Earth's interior & is believed to be the reason that tropical fossils are found in Antarctica?
A. Plate tectonics
B. Solar energy
C. Erosion
D. Ocean tides

Question #25f62

Give value of n and l for 2s orbital ?

Question #d0859

Question #bc196

Question #ac40e

Show that sin^2 30°+sec^2 30°+tan^2 45°=2?

What are the factors of #x^2 + 2x + 1# ?

Question #e8251

Show that cos²π/10+cos²4π/10+cos² 6π/10+cos²9π/10=2. I am a bit confused if I make Cos²4π/10=cos²(π6π/10) & cos²9π/10=cos²(ππ/10), it will turn negative as cos(180°theta)=costheta in the second quadrant. How do I go about proving the question?

How do i find the tenth term if the first term is 12 and common difference is 3?

Name a mammal which gives birth to poorly developed young ones?

How do you factor #3b ^ { 2}  48b + 189#?

What is the answer for sin theta cos theta?

Find ∂w/∂u?

Question #dd576

How do you solve #\frac { 1} { 12} ( 48+ 24b) = 2( 17 4b )#?

How do you find the foci and sketch the hyperbola #x^2y^2=1#?

Can somone help me solve the length of this side?

2x+1,x^2+x+1,3x^23x+3 are in A•P• then , find the value of X?

Find the function values of cos θ, tan θ, sec θ, csc θ and cot θ ?

What is 60% of 58?

Question #aa0f1

If #x^2 + 1/x^2 = 27#. Then find #x1/x# ?

What is the sum of #2 1/3, 3 5/6,# and #6 2/3#?

A movie is 2 hours and 28 minutes long. It starts at 7:50 P M. At what time will the movie end?

Question #8583b

How do you solve #4(x+2) = 4 +x +2#?

(sin 3x + sin x) / (cos 3x + cos x) = sqrt 3, sin x = ?

How do you solve #42 3x = 12 8x#?

A convex hexagon has exterior angle measures, one at each vertex, of 30°, 2t–25°, 30°, 56°, 66°, and 3t–14°. What is the value of t?

How do you solve #8x + 11\geq 3#?

Question #8911b

How do you verify csc^2xcot^2x+csc^2x=csc^4x ?

#inttanx/(1sinx)#?

Question #189c5

Question #82a9e

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