Answer:
684 mm squared
Step-by-step explanation:
Very simple. It's 18mm multiplied by 38 mm.
18 mm * 38 mm = 684 mm2
Answer:
171.65
Step-by-step explanation:
A=2AB+(a+b+c)h
AB=s(s﹣a)(s﹣b)(s﹣c)
s=a+b+c
2
Solving forA
A=ah+bh+ch+1
2﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=5·10+5·10+5·10+1
2·﹣54+2·(5·5)2+2·(5·5)2﹣54+2·(5·5)2﹣54≈171.65064
Answer: 3 red bricks and 4 grey bricks
<u>Step-by-step explanation:</u>
You have 17 kg total with weights of 3 kg and 2 kg.
Since 17 is an odd number, subtract one 3 kg weight to get an even #.
17 - 1(3 kg) = 14
14 ÷ 2 kg = 7
One 3 kg weight results in seven 2 kg weights = 8 total weights.
Since the given problem states that there are only seven weights, my guess was not correct.
Try Again:
Since we need and odd number of 3 kg weights, try three 3 kg weights
17 - 3(3 kg) = 8
8 ÷ 2 kg = 4
Three 3 kg weights and four 2 kg weights = 7 total weights. 
Note that this can be solved mathematically using a system of equations:
Weight: 3r + 2g = 17
Quantity: r + g = 7
Answer:
The equation is y = -5x - 1.
Step-by-step explanation:
1. Find the slope using the formula. Slope = (4 + 1) / (-1 - 0) which is equal to 5 / -1 which is -5.
2. Use the slope-point formula to construct an equation. The equation is y - 4 = -5 * (x + 1)
3. Simplify. We would get y = -5x - 5 + 4, which is y = -5x - 1.
Answer: The equation is y = -5x - 1.
7/32
14/64
21/96
28/128
35/160