Answer:
Option (a) is correct.
n + 3 represents the given expression "the sum of 3 and n" correctly.
Step-by-step explanation:
Given : Expression "the sum of 3 and n"
We have to choose the correct option from the given options that represents the given expression "the sum of 3 and n" correctly.
Consider the given expression "the sum of 3 and n"
We know the mathematical symbol for sum is '+'
So, The sum of 3 and n is written mathematically as 3 + n
Thus, n + 3 represents the given expression "the sum of 3 and n" correctly.
Answer:
216 is correct!
Step-by-step explanation:
–12x2y
2x2y2
7xy2
–10x2
4x2y
3x3
Answer:
B and F would be your correct answers
Answer:
Option C. 140
Step-by-step explanation:
Base of a pyramid which has four triangular sides is four sided.
If pyramid contains seven layers of oranges then the layer at the bottom will have 7 oranges.
Since base is a square then other side of the square base will have the same number of oranges = 7.
Therefore number of oranges at the first layer will be = 7×7
Similarly other layers above this layer will have the same sequence
6×6, 5×5, 4×4, 3×3, 2×2, 1×1
Therefore total number of oranges = 7×7 + 6×6 + 5×5 + 4×4 + 3×3 + 2×2 + 1×1 = 49 + 36 + 25 + 16 + 9 + 4 + 1 = 140
Option C. 140 is the answer.
A grocer stacks oranges in a four-sided pyramid that is 7 layers high. Many oranges are in the pile are C.140
The orange is the fruit of the citrus species Citrus and sinensis in the family Rutaceae, native to China. Orange is also called sweet orange, to distinguish it from the related Citrus and aurantium, referred to as bitter orange.
The proper name of four-sided pyramid is a "tetrahedron". The tetrahedron has the extra interesting property of having all four triangular sides congruent
1st Layer: The 1st layer contains only 1 orange so it has only 1 orange
2nd layer: The 2nd layer has total 4 oranges. Calculation:
3rd layer: The 3rd layer has total 9 oranges. Calculation:
4th Layer: The 4th layer has total 16 oranges. Calculation: .
5th layer: The 5th layer has total 25 oranges. Calculation:
6th layer: The 6th layer has total 36 oranges. Calculation:
7th layer: The 7th layer has total 49 oranges. Calculation: .
Sum of all layers:
Grade: 9
Subject: mathematics
Chapter: pyramid
Keywords: oranges, pyramid, four-sided, layers, pile
Answer:
D. 3.77
Step-by-step explanation:
This is for plato users
Hope it helps :)
A correlation coefficient of 0.9 shows a strong, almost perfect correlation between the two variables. A positive correlation implies that when one variable increases, the other variable increases together with it. When one variable decreases, the other variable decreases as well.