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Dennis_Churaev [7]
2 years ago
14

Can someone help me im really stuck on this and im trying to pass

Mathematics
2 answers:
Mars2501 [29]2 years ago
6 0

Answer:

7

Step-by-step explanation:

Sholpan [36]2 years ago
5 0
The answer is seven
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Find the volume of the tetrahedron with the given vertices. (2, 0, 0), (0, 4, 0), (0, 0, 4), (2, 4, 4)
Katarina [22]

Answer:

The volume of the tetrahedron is

\frac{-32}{3}

Step-by-step explanation:

To find the volume of a tetrahedron with vertices (2, 0, 0), (0, 4, 0), (0, 0, 4), (2, 4, 4).

We know by definition that the volume of a tetrahedron with vertices (x_{1}, y_{1}, z_{1}), (x_{2}, y_{2}, z_{2}), (x_{3}, y_{3}, z_{3}) is

\frac{1}{6}\begin{vmatrix}2 & 0 & 0 & 1\\0 & 4 & 0 & 1\\0 & 0 & 4 & 1\\2 & 4 & 4 & 1\end{vmatrix}

From here we have:

\frac{1}{6}\begin{vmatrix}x_1 & y_1 & z_1 & 1\\x_2 & y_2 & y_2 & 1\\x_3 & y_3 & z_3 & 1\\x_4 & y_4 & y_4 & 1\end{vmatrix}

Finding the determinant of that matrix we have:

\frac{1}{6} (-64) = \frac{-32}{3}

7 0
3 years ago
-18 = -6n - 6 + 2n Solve for n. ​
vodomira [7]

Answer:

n = 3

Step-by-step explanation:

-18 = -6n - 6 + 2n

-18 = -6n +2n -6 (Combine like terms)

-18= -4n -6

-18+6= -4n -6+6 (Addition Property of Equality)

-12 = -4n

-12/-4 = -4n/-4 (Division Property of Equality)

3=n

The value of 'n' is 3.

3 0
3 years ago
intr-o cutie sunt bile galbene si rosii. Numarul bilelor galbene este de 3 ori mai mic decat al celor rosii, iar diferenta dintr
Inga [223]
9×2=18 because 9+9=18

8 0
3 years ago
Write the equation of the line that passes through the following points.<br> (3, 1) (1,7)
Marina CMI [18]

Answer:

y=-3x+10

Step-by-step explanation:

Slope formula y2-y1/x2-x1

7-1/1-3

simplify

6/-2

simplify

-3

now plug -3 into y=mx+b

y=-3(x)+b

choose any point and plug it into the equation, I am using (3,1)

1=-3(3)+b

simplify

1=-9+b

add 9 to both sides

b=10

plug into slope-intercept form

y=-3x+10

4 0
3 years ago
10. What is the sample space for choosing a letter from the word probability?​
maw [93]
Could you give me the answer options so I could give you the correct answer?
3 0
3 years ago
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