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solmaris [256]
2 years ago
12

Who can help me with these

Mathematics
1 answer:
harina [27]2 years ago
6 0
These will be the answers

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How much cubic centimeters of dirt must be removed when digging for a foundation of a building if the excavation is 32m long, 12
fredd [130]

Answer:

3,072m

Step-by-step explanation:

32 × 12× 8= 3,072 (This is only you are multiplying them all)

If you are trying to find the area then its: 384m

4 0
2 years ago
Solving two step equations​
poizon [28]
Answer: y=66
I hope it helps you!
3 0
2 years ago
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The ratio of 7th graders who prefer comedies to 8th graders is:
Len [333]
IS IT 7:8 OR 7 OVER 8
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3 years ago
If 2a+3b=12 and ab=6 find the value of 8a^3+27b^3
Alex17521 [72]
<span>A) 2a + 3b = 12
B) ab = 6 solving for a
B) a = 6 / b then we substitute this into equation A)
</span><span>A) 12 / b + 3b = 12  </span><span>multiplying this by "b"
A) 12 + 3b^2 = 12b
A) 3b^2 -12b +12= 0 dividing by "3"
A) b^2 -4b + 4 = 0
Factoring
(b-2) * (b-2) = 0
b = 2
Since b = 2 then a = 3

</span>NOW, we put these numbers into:
<span>8a^3 +27b^3 </span>
8*3*3*3 + 27*2*2*2
216 + 216
The answer is 512


6 0
3 years ago
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Which letter represents the y-intercept in the slope-intercept equation of a line: y = mx + b?
jeka94
Y = mx + b
m represents the slope
b represents the y intercept
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