-20
-4
4
20
The addition is one of the four fundamental mathematical operations. The correct option is B.
The addition is one of the four fundamental mathematical operations, the others being subtraction, multiplication, and division. When two whole numbers are added together, the total quantity or sum of those values is obtained.
Given that the price of a stock decreased $4 per day for 3 days and increased $2 per day for 4 days. Therefore, The change in the price of the stock is,
Change in the price = (-$4 × 3 days) + (+$2 × 4 days)
= -$12 + $8
= -$4
Hence, the correct option is B.
Learn more about Addition:
#SPJ2
Answer:
-4
Step-by-step explanation:
so 4 would be negative because it decreased and 2 would be positive because it increased so multiply -4 by 3 wich is -12 then add it by 2 times 4 which is 8 and it is -4
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-
#SPJ5
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.