Answer:
x = 13
Step-by-step explanation:
x = hypotenuse which is c in the Pythagorean theorem
c = √a^2 + b^2
c = √12^2 + 5^2
c = 13
If triangles PQR and STU are similar then PQ corresponds to ST and PR corresponds to SU. Therefore, PQ/ST=PR/SU
Considering that, PQ= 7-x, ST= 13-x, PR= x²+5 and SU= x² +20
therefore, (7-x)/(13-x)= (x²+5)/(x²+20)
cross multiplying,
7x² +140-x³+20x =13x²+65-x³-5x
combining the like terms,
6x² +15x -75=0
solving for x,
x = 5/2 or -5
Not A = -10
Not B= -8
Not C= -10
I think D
I am not sure
Answer:
The answer is 1 foot and 5.75 inches.
Step-by-step explanation:
- Step-by-step explanation:
12g +21 and3(4g +7)
12g + 21 and( 3×4g=12g+3×7=21)
12g+21 and 12g+21,,
