Answer: 36 cm
Step-by-step explanation:
Given : The square has a perimeter =160 cm.
Perimeter of square = 4 (side)
Therefore , the side of square = (Perimeter)÷ 4
= 160 ÷ 4 = 40 cm
The new length of side after dilation = (Scale factor) x (Length of original figure)
For scale factor = 0.9
The new length of each side of the dilated square = (0.9)x(40)=36 cm
Hence, the new length of each side of the dilated square= 36 cm
Answer:
96.275 < µ < 111.725
Step-by-step explanation:
For our sample:
n = 36, x = 104
The population standard deviation is: σ = 18
We need a 99% confidence interval. Since our sample size is greater than 30, we use the z-score of 2.575.
See attached photo for construction of confidence interval
Answer:
y=2 and x= all real numbers
Step-by-step explanation:
Answer:
Stretch
Step-by-step explanation:
- Translation: A translation moves a shape up, down or from side to side but it does not change its size.
- Reflection: A reflection is a transformation which all the points of an object reflect or flip on a line called the axis of reflection or line of reflection. This transformation does not change its size.
- Rotation: A rotation is a transformation that turns a figure about a fixed point called the center of rotation. This transformation does not change figure's size.
- Stretch: A stretch is a transfoormation which stretch the figure (by multiplying by C>1). This transformation changes the size of the figure.
- Isometry: An isometry is a type of transformation that preserves the length of a figure's sides.
Thus, a stretch is not an isometry
Answer:
AC - 16 units
AB - 16 units
Step-by-step explanation:
add 9 + 7 for both
