Algebra Answers

Compare the domain:

Domain of y= square root of x is 0 < x < infinity Domain of the inverse y=x² is -infinity<x< infinity

What is the significant difference between the domains of y=square root of x and y= x²?

In Desmos, type in equations: y= ³sqaure root of x ;y=-³ square root of x

Choose all transformations from the red parent function y=³sqaure root of x to the blue transformation function y= -³sqaure root of x + 1

Options:

Down 1

Up 1

Reflective over the x axis

Right 1

(a)  Given the formula:-

Moles  = Concentration(Moldm^-3) X Volume(dm³)

Use the formula to find the number of moles in

2.5 X 10 ^-6 dm³ of a 8.0 X 10 ^-6 moldm^-3 solution of potassium   permanganate.

(b)           Evaluate showing your working out without calculator use:-     

           2.6x10⁷ x 3x10^-4      

                        1.3 x 10³   

find the equation of a line that has a gradient of 3 and poassess through the point A(1,7)

​National exporters (NE) Ltd manufactures Agricultural, Industrial

and mineral products. One shilling worth of Agricultural output requires inputs worth Ksh 0.1, Ksh 0.15 and Ksh 0.20 from Agricultural, Industrial and mineral products respectively. One shilling worth of Industrial output requires inputs worth Ksh 0.25, Ksh 0.15 and Ksh 0.30 from Agricultural, Industrial and mineral products respectively. One shilling worth of Mineral output requires inputs worth Ksh 0.24, Ksh 0.16 and Ksh 0.16 from Agricultural, Industrial and mineral products respectively. In the next financial year, NE Ltd Plans to produce products worth Ksh 40 million, Ksh 20 million and ksh 50 million for the Agricultural, Industrial and mineral products respectively.

Required

i) Derive the technological matrix

ii) Write down the intermediate demand for each type of product

iii) Compute the final demand for each type of product.

iv) Compute the total worth of primary inputs

An acidophilus culture containing 150 bacteria doubles every 20 minutes. Write the exponential function then determine how much bacteria there are after 4 hours.

The value of a truck bought new for $28,000 depreciates 9.5% each year. Write the exponential function then determine the value of the truck after 7 years.

The discriminant of a general quadratic equation ax²+bx+c = 0, where a≠0, is given by D = b²−4ac. 

i.   State three possibilities of the discriminant.

ii.   Use the discriminant to determine how many real solutions the equation 2x² −10x + 20 = 0 have?   

teddy has simplify 10 cube root 48 here is the answers 10 square root 48=10x4x12=20root12 do you agree explain why

Akoshia has more money than Komley. If Akoshia gave Komley ¢20, they would have the same amount. While if Komley gave Akoshia ¢22, Akoshia would then have twice as much as Komley. How much does each one actually have?