Answer and explanation:
To find : Whisper the numbers in standard form and unit form?
Solution :
According to place value system,
Hundreds Tens Ones
So, Writing numbers according to them is whisper by its place value
a) 15
1 tens 5 ones
b) 152
1 hundred 5 tens 2 ones
c) 102
1 hundred 0 tens 2 ones
d) 290
2 hundred 9 tens 0 ones
e) 300
3 hundred 0 tens 0 ones
The numbers in standard form and unit form are: 15, 152, 102, 290, 300
In standard form, the numbers would be expressed as:
a. 15 = 1 × 10 + 5 × 1
b. 152 = 1 × 100 + 5 × 10 + 2 × 1
c. 102 = 1 × 100 + 2 × 1
d. 290 = 2 × 100 + 9 × 10 + 0 × 1
e. 300 = 3 × 100 + 0 × 10 + 0 × 1
In unit form, the numbers would be expressed as:
a. 15 = 1 ten and 5 ones
b. 152 = 1 hundred, 5 tens, and 2 ones
c. 102 = 1 hundred, 2 ones
d. 290 = 2 hundreds, 9 tens, and 0 ones
e. 300 = 3 hundreds and 0 ones
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make several different figures that are similar to it.
If she uses the scale factor , will the new shape
that she creates be larger or smaller than the
original? Justify your answer.
b. List two different scale factors Alexa could use to make a smaller shape.
C. List two different scale factors Alexa could use to make a larger shape.
The answers for part [b] and [c] is -
[b] : K = 0.5 and K = 0.7
[c] : K = 2 and K = 3
Scale factor is used to compare 2 quantities, indicating by how much one quantity is greater than the other. It is denoted by K. Mathematically-
K = a/b.
If a coordinate point (x, y) is dilated by a scale factor of [k], then the coordinate point after dilation will be - (kx, ky).
Given is a trapezium as shown in image.
For scale factor [K] greater than zero, the shape will enlarge while if [K] is less than zero, the shape will shrink.
So -
[b] : K = 0.5 and K = 0.7
[c] : K = 2 and K = 3
Therefore, the answers for part [b] and [c] is -
[b] : K = 0.5 and K = 0.7
[c] : K = 2 and K = 3
To solve more questions on dilation, visit the link below-
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Answer:
B. 0.5 and 0.2
C 2 and 3.2
Step-by-step explanation:
because anything lesser than the standard value of one is smaller.
because anything over the standard value of one is larger.
27 in2
B.
31 in2
C.
45 in2
D.
47 in2