Answer:
b
Step-by-step explanation:
given that c is the midpoint of segment ab and ab = 20
Then ac is one half of ab
ac = × 20 = 10
In Geometry, a midpoint divides a line segment into two equal parts. So, if C is the midpoint of line segment AB with a total length of 20 units, the length of segment AC is 10 units.
The subject of this question is in the area of Geometry, specifically, it's about understanding the concept of a midpoint in a line segment. In a line segment AB, if C is the midpoint, it divides the line segment AB into two equal parts. So, if the total length of AB is 20 units, then the lengths of AC (from A to C) and BC (from B to C) are both equal to half of the total length. Hence, the length of segment AC is
10 units
. This is the concept of a midpoint which divides any given segment into two halves.
#SPJ11
Answer:
15
Step-by-step explanation:
n + 6
for
n = 9
then:
9 + 6 = 15
15
Step-by-step explanation:
n=9
n+6=9+6=15
mark as brainlist answer
Answer:
Step-by-step explanation:
The parametrical components of the curve are:
and
After some trigonometrical and algebraic handling, the parametrical variable is eliminated in the resulting expression:
To eliminate the parameter and find the Cartesian equation of the curve x = 7sinθ,y = cos2θ, we can express x in terms of θ, rearrange the equation, and substitute it into the other equation to eliminate the parameter θ. The resulting equation 2(x/7)² + y - 1 = 0 represents the Cartesian equation of the curve.
To eliminate the parameter and find the Cartesian equation of the curve, we can express x in terms of θ using the given equation x = 7sinθ. Rearranging this equation, we get sinθ = x/7. Similarly, we can express y in terms of θ using the given equation y = cos2θ, which can be rewritten as cos(2θ) = y.
Now we can use the trigonometric identity cos(2θ) = 1 - 2sin²θ to eliminate θ from the equations. Substituting this identity into the second equation, we get 1 - 2(sinθ)² = y.
Simplifying this equation, we have 2(sinθ)² + y - 1 = 0. Finally, we can express sinθ in terms of x using the equation sinθ = x/7, and substitute it into the simplified equation to eliminate θ. This gives us 2(x/7)² + y - 1 = 0, which represents the Cartesian equation of the given curve.
#SPJ3
-r^2+6r-9
The cost of 7 cakes will be equal to 5.6.
The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that the cost of 5 cakes is 4. The cost of 7 cakes will be calculated as,
5 cakes = 4
1 cake = 4 / 5
7 cakes = ( 4 x 7 ) / 5
7 cakes = 5.6
To know more about an expression follow
#SPJ2