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I need help with this yr 9 algebraic question please?

Anyone have an idea about this chemistry problem?

What is the pH of a 0.150 M solution of sodium acetate (NaO2CCH3)? Ka(CH3CO2H) = 1.8 x 105.

The four forces, taken together, act as a single resulting force. What is the magnitude of this resulting force? The forces are acting on a point and the magnitude of each force is show in the diagram.

What's the domain of ?

Question #6d042

How do you find the inverse of #f(x)=sqrt(3x) # and is it a function?

The measures of three angles of a triangle are given by #(8x 5)° , (2x)°,# and #(3x  10)°#. What is the measure of the largest angle?

Question #14d05

The center of gravity of a 50 g meter stick is at 51 cm and the stick is supported at 70 cm. Where must an 80 g object be hung in order to have equilibrium?

GCF of #64n^2# and #24n^2#?

How do you solve and graph # 2x+9<16#?

Question #03374

What is AE ?
Enter your answer in the box.
_____units

Find the first 3 and last 3 terms in the expansion #(2x1)^11# using the binomial theorem?

How do you solve #\frac { \tan \theta  \tan 27^ { \circ } } { 1+ \tan \theta \tan 27^ { \circ } } = 1#?

What is the difference between quasars, pulsars and neutron stars?

How do you evaluate # e^( ( 7 pi)/6 i)  e^( ( pi)/3 i)# using trigonometric functions?

How do you simplify #(6i)(8i)#?

Please help to solve this thanks very much!?

How do you find the derivative of #(x^8(x23)^(1/2))/(27x^6(4x6)^8)#?

Which ΔS do you use to decide spontaneity?

How do i solve this?

Question #23d6b

Question #8cf3a

Question #a70ba

It is given #vec u=2vec i+3vec j # and #vec v=3vec i+2vec j # .How to calculate #vec u*vecv#?

Test to distinguish between ZnSO4 and ZnSO3?

Question #56c3f

Question #5f1df

How do I solve #log_2 7 = log_2 (7/16)#?

How do you simplify #tan(arccos(x/3))#?

If lithium has a first ionisation energy of #520# #kJ# #mol^(1)#, estimate the energy required to form 1 #Li^+# ion from 1 Li atom?

How do you write the rectangular coordinates for the point: #(6, 3/2 pi)#?

Question #01306

An object with a mass of #4 kg# is hanging from a spring with a constant of #2 (kg)/s^2#. If the spring is stretched by # 8 m#, what is the net force on the object?

With steps please.?

What are the points of inflection, if any, of #f(x)=4x^3 + 21x^2  294x +7
#?

Explain why the relative atomic mass of chlorine is not a whole number?

How do you find the asymptotes for #s(t)=t/(sin t)#?

Please help?! Geometry

Question #25a8e

How do you solve #sqrt(2x  3) = 5#?

How do you differentiate # ln(x+4+e^3x)#?

If an electron is placed in an electric field with a potential difference of (1.35x10^2) V, the maximum speed the electron can attain is?

Question #59d74

Question #572cf

Prove #cos(x)+sin(x)tan(x)=sec(x)#?

Question #28b04

How do you find #(dy)/(dx)# given #sqrty+xy^2=5#?

What is the chemical symbol of phosphorus?

How to expand and simplify this expression by using binomial theorem?

Obtain a quadratic polynomial with following conditions??
1. the sum of zeroes=1/3,the product of zeroes=1/2

If sinθ+cosecθ=4
Then sin^2θcosec^2θ =?

Question #2f5fd

What is the most widely accepted theory of the moon's origin?

How do you divide #(2x^4+x^2+8x7)/(5x2)#?

How do you multiply # (35i)(78i) # in trigonometric form?

Why is #cosx=secx# an inconsistent equation?

Question #ea133

Show that if #a, b, and c# are all odd integers then the quadratic #ax^2 + bx + c = 0# has no solution in the set of rational numbers?

How do you simplify #2( 4x  5) + 5(  2x + 3)# as a binomial?

Question #0f12e

Help please thanks?!

What does a logarithmic function look like?

How do you linearise the radioactive decay function properly?

Question #86352

If lithium has a first ionisation energy of #520# #kJ# #mol^(1)#, estimate the energy required to form 1 #Li^+# ion from 1 Li atom?

What is the value of it? Thank you in advance.

Pg 24, q51. How do I figure this out? thanks

In the case where OAB is a straight line, state the value of p and find the unit vector in the direction of #vec(OA)#?

What are the gas laws formulas?

How do you add #(89i)+(36i)# in trigonometric form?

The function #f(x)=sin(3x)+cos(3x)# is the result of series of transformations with the first one being a horizontal translation of the function #sin(x)#. Which of this describes the first transformation?

Question #3dd7c

#int2/(2x^2+2x)dx#?

Question #b5a72

What is the sum of the first eight terms of the series?

How do you find cos theta?

If #f(x) = 6x  4# and #f(a) = 26#, what is the value of #a#?

How would you determine the magnitude of the magnetic force on a #120 m# length of line?

Question #86860

How do you use the Binomial Theorem to expand #(x + 1)^4#?

Does the point #(4,3)# lie on the circle #(x+4)^2+(y3)^2=49#?

What is zwitter ion?

How do I find this summation with an unknown variable at the end?
8+7+6...+(91n).

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