Answer:
Step-by-step explanation:
2(9a - 6) = 2*9a - 2*6 = 18a - 12
Yes, it is equivalent.
6*(3a-2) = 6*3a - 6*2 = 18a - 12
Yes, it is equivalent.
-3(6a+4)= -3*6a + 4*(-3) = -18a - 12
No, not equivalent
3(6a+4) = 3*6a + 3*4 = 18a + 12
No, not equivalent
-3(4-6a) = -3*4 - 6a*(-3 ) = -12 + 18a = 18a - 12
Yes, it is equivalent.
Lateral area: AL = 4 * s * h
624 = 4 * s * 13
624 = 52 s
s = 624 : 52
s = 12 cm
The surface area of the prism:
A = 2 ·12² + 624
A = 2 · 144 + 624 = 288 + 624 =912 cm²
The volume:
V = a² · h = 12² · 13 = 144 · 13 = 1,872 cm³
Answer:
1. The surface area is equal to 912 cm².
2. The volume is equal to 1,872 cm³.
A rectangle is a shape made of two squares
A). 10.75 gallons is needed for the trip
B). 3.98 x 10.75 = 42.785
So round up to nearest cent ; your answer will be $42.79
Answer:
I'm not sure bout what to do so I did this instead.
Step-by-step explanation:
3x + 4x + 19 = 180
7x + 19 = 180
7x + 19 - 19 = 180 - 19
7x = 161
7x ÷ 7 = 161 ÷ 7
x = 23
_________________________
3x + 4x + 19 = 180
3(23) + 4(23) + 19 = 180
69 + 92 + 19 = 180
180 = 180
________________________
3x = ?
3(23) = ?
69 = ?
__________________________
4x + 19 = ?
4(23) + 19 = ?
92 + 19 = ?
111 = ?
