Answer:
b = 80°
Step-by-step explanation:
The inscribed angle measuring 100°, is supplementary to the angle opposite it in the inscribed quadrilateral.
Thus, the angle is = 80°
Therefore, b + 80° = 180° (angle on a straight line = 180°).
Thus, b = 180° - 80° = 100°.
The measure of b is 80°.
The given word sentence is m > 3
inequality, In mathematics, a statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.
"A number m multiplied by 4 is greater than 12"
"A number m" ⇒ m
"multiplied by" ⇒ ×
"4" > 4
"is greater than"⇒ >
"12" ⇒ 12
put this together and we get
m × 4 > 12
or
4m > 12
it can be simplified to m > 3 if you would like.
To learn more about inequality from here
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Answer:
r(180°,0) is a rotation of 180° degrees over the origin.
Notice that this rotation moves our figure to the opposite quadrant (so a translation of two quadrants).
Then this is equivalent to:
A reflection over the x-axis followed by a reflection over the y-axis.
Or.
A reflection over the y-axis followed by a reflection over the x-axis.
There is another possible reflection, but it depends on where is our figure.
If the figure is in the first or third quadrant, a reflection over the line y = -x is equivalent to the rotation.
If the figure is in the second or third quadrant, then the reflection over the line y = x is equivalent to the rotation.
We can combine those two and write:
A reflection over the line y = (-1)^n*x.
Where n is the number associated with the quadrant where the figure is in.
A rotation reflection, r(180°, O)(△BCD), can be achieved by performing two reflections over intersecting lines.
If the lines intersect at an angle of 90 degrees, the combination of the two reflections would result in a 180-degree rotation.
The mathematical question requires knowledge of geometrical transformations, specifically, reflections.
The rotation reflection, r(180°, O)(△BCD), means the initial triangle within the plane is reflected over a point 'O' by 180 degrees.
This reflection will result in an image equivalent to a series of two reflections over intersecting lines.
In commonly accepted mathematical conventions, it is generally accepted that any rotation can be represented by two reflections over intersecting lines.
For instance, two reflections over lines intersecting at an angle ∅/2 represent a rotation by an angle ∅, hence, a rotation by 180 degrees would mean the intersecting angle is 90 degrees.
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15
84
12
Answer:
x= 12
Step-by-step explanation:
Simplifying
7x + 21 = 105
Reorder the terms:
21 + 7x = 105
Solving
21 + 7x = 105
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-21' to each side of the equation.
21 + -21 + 7x = 105 + -21
Combine like terms: 21 + -21 = 0
0 + 7x = 105 + -21
7x = 105 + -21
Combine like terms: 105 + -21 = 84
7x = 84
Divide each side by '7'.
x = 12
Simplifying
x = 12
Answer:
12
Step-by-step explanatio
p = 11
p = 10
p = 12
p = 13
Answer:
(c) p = 12
Step-by-step explanation:
You may recall that (5, 12, 13) is a Pythagorean triple. That would tell you ...
p = 12
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If you have not memorized a few useful Pythagorean triples, you can use the Pythagorean theorem to solve for p. The sum of squares of the sides is the square of the hypotenuse:
5² +p² = (p+1)²
p² +25 = p² +2p +1
24 = 2p . . . . . . . . subtract p²+1 from both sides
p = 12 . . . . . . divide by 2
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Additional comment
Some of the Pythagorean triples commonly seen in algebra and geometry problems are ...
(3, 4, 5), (5, 12, 13), (7, 24, 25), (8, 15, 17), (9, 40, 41)
Of course, multiples of these are used, too. For example, (6, 8. 10) is a multiple of the (3, 4, 5) triple.
Answer:
12
Step-by-step explanation:
5^2 + p^2 = (p+1)^2
25 + p^2 = p^2 + 2p + 1
25 = 2p + 1
24 = 2p
12 = p