Answer:
A)
Step-by-step explanation:
We can use logarithm properties to write it as:
On removing it gives:
Taking square root both sides.
Solving for we get:
and
Subtracting by 1 to both sides of both the above equations.
and
and
So we have got two solutions for the logarithmic equation.
Now we check the validity of the solutions by plugging values in the equation
Plugging
[As ]
So, thats a valid solution.
Plugging
As is undefined, so is not a valid solution which means its extraneous.
As both numbers that were used for estimation are greater than actual numbers the estimated product will be greater than the actual product.
Step-by-step explanation:
Estimation is used to find the product of two large numbers without using any electric device.
In estimation, we take the nearest whole numbers with zeroes so that the multiplication becomes easy.
The given numbers whose product has to be estimated is:
37*86
The numbers used for estimation are
40*90
As
40>37
90>86
As both numbers that were used for estimation are greater than actual numbers the estimated product will be greater than the actual product.
Keywords: Product, estimation
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(4n+1)=(2n-9)
the sum of four times a number and one is equal to the difference of twice the number and 9
F(x)=x^2-4x+7
My work is attached below
Answer:
This statement if FALSE
Step-by-step explanation:
This question deals with the concept of competing products and how the price of a product effects its demand
There are two competing bulbs
a) Compact fluorescent light bulbs
b) Incandescent light bulbs
The first statement exclaims that the price of the product (a) decreases and this causes the demand of product (a) to increase, this would decrease the demand of product (b) as they are competitors.
To retaliate against the loss of sales of product (b) the price of product (b) is decreased, this should increase the demand of product (b) but the statement says the the demand of product (b) further decreases.
Since we know from the statement that sales were primarily driven by the price of the products, the demand of product (b) should have increased. Hence this statement is false