Answer:
12
Step-by-step explanation:
Let n = the number.
2n - 7 = n + 5
n = 12
Let’s check if we got the right answer by substituting 12 for n into the original equation.
2*12 - 7 = 12 + 5
24 - 7 = 17
17 = 17
Answer:
x should be 55
Step-by-step explanation:
the acute angle is 55 and we know that the whole horizontal is 180 so calculate 180-55 to find the obtuse angle which is 125. Then subtract 70 from that to isolate for x and you get 55.
The approximate solutions of the equation are x = -0.93358695, and 1.05794841.
Given
Consider the equation
.
<h3>What properties for Logarithms are used to solve the equation?</h3>
Change of base formula is used in the evaluation of log and has another base than 10.
Taking log base 5 on both sides;
Then,
The solution of the equation is;

The solution is by graphing x + 5 and 5^(x^2) as two separate functions and then reading off the approximate x-coordinate of the point of intersection.
The solution is the x-value of the point of intersection.
x= -0.93358695, 1.05794841
Hence, the approximate solutions of the equation are x = -0.93358695, and 1.05794841.
To know more about logarithms properties click the link given below.
brainly.com/question/26053315
Then the vertex is at (h, k) = (2, –3) and the value of p is –3. Since y is squared and p is negative, then this is a sideways parabola that opens to the left. This puts the focus 3 units to the left of the vertex.
vertex: (2, –3); focus: (–1, –3)