Answer:
i dont know ..i dont know ..Step-by-step explanation:
the answer is b i really hope this helped!
Step-by-step explanation:
Answer:
10,080cm for the <em>whole</em> thing.
the <em>lateral part</em> of the triangular prism is 1680cm
Step-by-step explanation:
30 x 25 = 750cm
30 x 24 = 720cm
30 x 7 = <u>+210cm </u>
1680cm
25 x 24 = 600cm
600 x 7 = <u>+4200cm</u>
4800cm
4200cm x 2 = 8400cm (both of the triangles)
1680cm
<u>+8400cm</u>
10,080cm
1. Choose C. When you want to eliminate a, the equation has to have opposite values that cancel out. If you already have 4a, you want to get -4a, which is -4*a shown in the third option.
2. -3. Since we already have 3 y, we want -3 y so it can cancel out since 3-3=0.
3. -6. We have 6x already so we want -6x to cancel out since 6-6=0.
4.
-5x+20y=-35
5x+9y=6
29y=-29
y=-1
5x+9(-1)=6
5x-9=6
5x=15
x=3
Final answer: (3,-1)
5. The error is in step 2 since they forgot to multiply -2(10)
34, 59, then 87 on the bottom
