To the nearest tenth the value of x that satisfies 2x = −2x + 11 is
1 answer:
To solve for variable equations or inequalities, we want to do two things:
1. Reduce one side to variables only
2. Reduce that side to the variable without coefficients.
The given equation is
.
Let's perform step 1: reducing one side to variables only. By adding
to both sides of the equation, we get 
.
Now let's perform step 2: reducing that side to the variable without coefficients. Since the coefficient of
is 
, we need to divide both sides of the equation by 4: 
. Rounded to the nearest tenth, 
.
So the value of
that satisfies is .
1. Reduce one side to variables only
2. Reduce that side to the variable without coefficients.
The given equation is
Let's perform step 1: reducing one side to variables only. By adding
Now let's perform step 2: reducing that side to the variable without coefficients. Since the coefficient of
So the value of
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We are asked to determine the present value of an annuity that is paid at the end of each period. Therefore, we need to use the formula for present value ordinary, which is:
Where:
Since the interest is compounded semi-annually this means that it is compounded 2 times a year, therefore, k = 2. Now we need to convert the interest rate into decimal form. To do that we will divide the interest rate by 100:
Now we substitute the values:
Now we solve the operations, we get:
Therefore, the present value must be $39462.50
Answer:
is scientific notation of 78 billion
Step-by-step explanation:
For scientific notation , follow the following notation:
-------->(equation 1)
Let,
In standard form
or
As decimal point move 10 places from right to left, therefore
b = 10
Put the value of 'a' and 'b' in (equation 1)
is scientific notation of 78 billion