Answer:
Push-Ups: 15, 30, 45, 60, 75
Sit-Ups: 30, 60, 90, 120, 150
Step-by-step explanation:
Multiply the number of push-ups by 2 to find the number of sit-ups.
Answer:
7.41, 7.6, 745
Step-by-step explanation:
Answer:
option D
2x4; -11
Step-by-step explanation:
Order of matrix is in form (m x n), here m is the row and n is the column of the matrix.
So this matrix have 2 rows and 4 columns
1)Order of matrix
2x4
2)
here 1 is the row and 2 is the column
-11
Each elements of the matrix can be identity as below
![\left[\begin{array}{cccc}x_{11} &x_{12} &x_{13} &x_{14} \\x_{21} &x_{22} &x_{23} &x_{24} \\\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcccc%7Dx_%7B11%7D%20%26x_%7B12%7D%20%26x_%7B13%7D%20%26x_%7B14%7D%20%5C%5Cx_%7B21%7D%20%26x_%7B22%7D%20%26x_%7B23%7D%20%26x_%7B24%7D%20%5C%5C%5Cend%7Barray%7D%5Cright%5D)
1) Identify the statement you want to prove is true
2) Assume temporarily that the statement is false; assume the opposite is true
3) Obtain statements that logically follow from your assumption.
4) Reason logically until you reach a contradiction of a known fact.
5) Point out that your assumption must be false, and the statement must then be true.
It is a square based pyramid where,
Length (l)=9
Height (h)=10
Slant height (s)=11
For, volume (V) = 1/3 l^2*h
=1/3 9^2*10
=1/3 *810
=270
For, surface area = 2sl
= 2*11*9
=198
