Answer:
- 6.2
Step-by-step explanation:
The product of - 2 (3.1) is - 6.2.
Brackets mean to multiply so we have to multiply the - 2 by 3.1 which gives a result of - 6.2.
Answer:
area= 41 cm^2
Step-by-step explanation:
area=5 x 8.2 = 41 cm^2
divide the rhombus in half either way and you have two identical triangles.
area of triangle =0.5 x base x height
double that for the two triangles and you have the area of the rhombus.
In mathematical notation, ∑ means summation. So wherever you see the symbol, you have to sum over all elements in the set. Let's solve the question.
a. ∑m means, to sum all elements in the set m: ∑m = 12 + 15 + 20 + 30 = 77
b. ∑ means to sum all elements in the set f as the square of the elements f =
c. ∑mf means to sum all elements as the product of the elements of m and f = (12×5) + (15×9) + (2010) + (30×16) = 875
d. ∑ means to sum all elements as the product of the square of m and f =
Answer:
0.84
Step-by-step explanation:
hope this helps, brainliest appreciated!