Answer:
The correct options are:
B. subtract 1/2 from both sides of the equation.
D. Divide both sided by 6/7
E. multiply both sides by 7/6
Step-by-step explanation:
Consider the provided equation.
Subtract 1/2 from both sides of the equation.
Multiply both the sides by 7/6.
Now consider the provided options.
Hence, the correct options are:
B. subtract 1/2 from both sides of the equation.
D. Divide both sided by 6/7
E. multiply both sides by 7/6
For this case we must pose a verbal problem equivalent to the following expression:
So, we have:
The sum of double a number plus five.
We propose the expression:
A number subtracted from the sum of double the same number plus five equals twenty-six.
Answer:
A number subtracted from the sum of double the same number plus five equals twenty-six.
Answer:
Step-by-step explanation:
Start by noticing that the angle is on the 4th quadrant (between
and
. Recall then that in this quadrant the functions tangent and cosine are positive, while the function sine is negative in value. This is important to remember given the fact that tangent of an angle is defined as the quotient of the sine function at that angle divided by the cosine of the same angle:
Now, let's use the information that the tangent of the angle in question equals "-1", and understand what that angle could be:
The particular special angle that satisfies this (the magnitude of sine and cosine the same) in the 4th quadrant, is the angle
which renders for the cosine function the value .
Now, since we are asked to find the value of the secant of this angle, we need to remember the expression for the secant function in terms of other trig functions:
Therefore the value of the secant of this angle would be the reciprocal of the cosine of the angle, that is: