Answer:
3X+24=7X-4
3X-7X=-4-24
-4X=-28
X=-28/-4
X=7 ANS.
PROOF:
3*7+24=7*7-4
21+24=49-4
45=45
Step-by-step explanation:
Answer:
umm i think it is 5 cm but im not sure
Answer:
135 units²
Step-by-step explanation:
The area (A) of a parallelogram is calculated as
A = bh ( b is the base and h the perpendicular height )
To calculate h use Pythagoras' identity on the right triangle on the left
h² + 8² = 17²
h² + 64 = 289 ( subtract 64 from both sides )
h² = 225 ( take the square root of both sides )
h =
= 15 , thus
A = 9 × 15 = 135 units²
X=0.697
x=4.30
Hope this helps