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gtnhenbr [62]
3 years ago
5

Help me please teachers trying to give me 8th grade problems

Mathematics
2 answers:
Bezzdna [24]3 years ago
5 0

Answer:

x = 2

Step-by-step explanation:

Used a scientific calculator.

murzikaleks [220]3 years ago
3 0

Answer:

x = 2

Step-by-step explanation:

5x - 7 = 3

Add seven to the minus 7 and 3

Which gives you:

5x = 10

Divide both sides by 5

Which gives you:

X = 2

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Write an inequality to represent: ten is no more then four then a number
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Answer:

10 ≤ x - 4

Step-by-step explanation:

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3 years ago
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andrezito [222]

The initial deceleration is 4 m/s^2, so this means that considering the first line segment, \frac{V-100}{T}=-4 \implies V=100-4T.

The total distance traveled is 4 km, which is equal to 4000 meters. This is equal to the area under the graph, so 400T-\frac{1}{2}(100-V)(5T)=4000.

400(100-4T)-\frac{1}{2}(4T)(5T)=4000\\\\40000-1600T-10T^2=4000\\\\10T^2 +1600T-36000=0\\\\T^2 +160T-3600=0\\\\(T+180)(T-20)=0\\\\T=20 (T > 0)\\\\\therefore V=100-4(20)=20

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2 years ago
Someone please help me with this!! i really need this to pass :(
DochEvi [55]

Answer:

Option :" Use distance formula to prove that the lengths of the diagonals are equal" is correct

Step-by-step explanation:

Option : Use distance formula to prove that the lengths of the diagonals are equal" is correct.

Because " By using the coordinate geometry to prove that the diagonals of the rectangle are congruent, first we have to find the lengths of the top and bottom of the rectangle and then solve it for the lengths of the diagonals by using the distance formula".

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3 years ago
What times what gives you 5700?
notsponge [240]

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57 × 10 will give you 5700, as well as 285 × 20.

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The number 844,758,200,030 will be rounded to
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