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Elza [17]
3 years ago
15

Help please this is hard sheet attached

Mathematics
1 answer:
deff fn [24]3 years ago
5 0

Answer:

88 cm²

Step-by-step explanation:

6*2*2+2*2= 28 cm² sides

6*3*2= 36 cm² top and bottom

3*4*2= 24 cm² front and back

28+36+24= 88 cm²

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Step-by-step explanation:

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1 year ago
At noon, ship A is 50 km west of ship B. Ship A is sailing south at 10 km/h and ship B is sailing north at 20 km/h. How fast is
Lena [83]
So  hmmm check the picture below

so, we're looking for dr/dt then at 4:00pm or 4 hours later

now, keep in mind that, the distance "x", is not changing, is constant whilst "y" and "r" are moving, that simply means when taking the derivative, that goes to 0

\bf r^2=x^2+y^2\implies 2r\cfrac{dr}{dt}=0+2y\cfrac{dy}{dt}\implies \cfrac{dr}{dt}=\cfrac{y\frac{dy}{dt}}{r}\quad 
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\\\\\\
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6 0
3 years ago
Mr. Allen needs 100 mL of a solution that is 30% vinegar, 15% lemon juice, and 55% water. How much of solution A will mr.Allen
BartSMP [9]

Answer:

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Step-by-step explanation:

Mr. Allen needs 100 mL of a solution that is

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6 0
3 years ago
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Step-by-step explanation:

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