Answer:
Surface Area = 282.6 cm²
Step-by-step explanation:
Formula: SA = 2rh + 2r²
SA = 2rh + 2r²
SA = 2(3.14)(5)(4) + 2(3.14)(5)
SA = 2(3.14)(5)(4) + 2(3.14)(25)
SA = 125.6 + 157
SA = 282.6 cm²
Answer:
2*2*9+4*12*3=36+144=180
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
The x-intercept is the x-value when y=0, so we plug in y=0,
x=-2(0)+7
x=0+7
x=7
So the x-intercept is 7
The answer is 5, 2. 2(5)-2=8 and 2=5-2
Answer:
x=3 and y=1
Step-by-step explanation:
subtract equation 2 from 1
then (2x+3y) -(2x+y) =9-7
2x-2x+3y-y =2
2y=2 therefore y=1
substitute y value in 2x+y=7
2x+1=7
2x=7-1
2x=6
x=3