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deff fn [24]
3 years ago
14

Can you help me solve this please

Mathematics
1 answer:
Gekata [30.6K]3 years ago
4 0

Answer:

4

Step-by-step explanation:

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rusak2 [61]
The answer is 2 because you multiply 9.8 times the mass and that will give you your answer
6 0
3 years ago
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Solve:<br> 3x−5 = 9. <br> A. x = −3 <br> B.x = 2 <br> C.x = 7 <br> D.x = 8
Alina [70]

Answer:

Step-by-step explanation:

3x-5=9

3x-5+5=9+5

3x=14

\frac{3x}{3}=\frac{14}{3}

x=\frac{14}{3}

x ≈ 4.66667

4 0
3 years ago
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What are the coordinates of the endpoints of the midsegment for △DEF that is parallel to DE¯¯¯¯¯?
Readme [11.4K]

Answer:

The endpoints of the midsegment for △DEF that is parallel to DE, are (-1,3.5) and (-1,2).

Step-by-step explanation:

If a line connecting the midpoint of two sides and parallel to the third side of the triangle, then it is called a midsegment.

From the given figure it is noticed that the vertices of the triangle are D(1,4), E(1,1) and F(-3,3).

If the midsegment is parallel to DE, then the end points of the midsegment are mid point of DF and EF.

Midpoint formula.

Midpoint=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})

Midpoint of DF,

Midpoint=(\frac{1-3}{2},\frac{4+3}{2})

Midpoint=(-1,3.5)

Midpoint of EF,

Midpoint=(\frac{1-3}{2},\frac{1+3}{2})

Midpoint=(-1,2)

Therefore the endpoints of the midsegment for △DEF that is parallel to DE, are (-1,3.5) and (-1,2).

3 0
2 years ago
Calculate the amount of heat (in kJ) released when 3.5 mol CH4 react. 4() + 22() → 2() + 22() + 890
In-s [12.5K]

The amount of heat (in KJ) released when 3.5 moles of CH₄ react is 3115 KJ

<h3>Balanced equation</h3>

CH₄ + 2O₂ -> CO₂ + 2H₂O ΔH = 890 KJ

From the balanced equation above,

1 mole of CH₄ reacted to release 890 KJ of heat energy.

<h3>How to determine the heat energy released by 3.5 moles of CH₄</h3>

From the balanced equation above,

1 mole of CH₄ reacted to release 890 KJ of heat energy

Therefore,

3.5 moles of CH₄ will react ro release = 3.5 × 890 = 3115 KJ of heat energy

Thus, 3115 KJ of heat energy were released from the reaction

Learn more about enthalpy change:

brainly.com/question/11967318

#SPJ1

5 0
1 year ago
Which binomial is a factor of x^2+2x-24
Effectus [21]

Answer:

C (x+12)

Step-by-step explanation:

XxX=x^2 12x2=24

8 0
2 years ago
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