Five added to 2 times a number is equal to 7 less than 4 times the number: what is the number?

6

Step-by-step explanation:

Five added to 2 times a number is equal to 7 less than 4 times the number

Five is added to 2 times a number 2x + 5

7 less than 4 times the number 4x - 7

Put them together

2x+5=4x-7

2(6)+5=17

4(6)-7=17

x=6

v = 1/3 a^2h

step-by-step explanation:

if the height is 57.7cm and the height of the slant edge is 18.2cm, then the volume is 1/3 a^2h.

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column