Use the equation 135⋅42=5,670 and what you know about fractions, decimals, and place value to explain how to place the decimal point when you compute (1.35)⋅(4.2).

7x + 4 = 9

7x + 4 = 19

2x = 19 - 4

7x = 15

x= 15 – 7

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.