Answer:
7x^2+15x+31
Step-by-step explanation:
(3x+5)(x+5)
FOIL
3x^2+15x+5x+25
(3x^2+20x+25)+(4x^2-5x+6) = 7x^2+15x+31
Answer:
8-10i - -16+2i= 236
Step-by-step explanation:
I am brainliest
Answer:
357 mi²
Step-by-step explanation:
The shape is made of a triangle and a half-square
we will calculate the area of each one
let A1 be the area of the half-circle:
A1= (10²*π)/2 = 50π mi²
Let A2 be the area of the triangle:
A2= 10*20=200 mi²
let At be the total area:
At =A1+A2= 200+50π =357.07≈ 357 mi²
C, 40 feet. (14x2)+(6x2)=28+12=40.
Answer:
-9(7+3)x
Step-by-step explanation:
7+3=10×9=90 so that'll be 90x