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s2008m [1.1K]
3 years ago
8

PLEASE HELP ME WITH THIS QUESTION

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
5 0
Cutwright : 84 / 35 = 2.4 minutes per lap
evans : 96.6 / 42 = 2.3 minutes per lap
loza : 102.6 / 38 = 2.7 minutes per lap

the fastest driver is Evans
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A cube has a surface area of 294 square cm. Find the length of one side.
DerKrebs [107]
Since a cube has 6 sides, we can divide 294 by 6, so we have the area of one side. Since it is a cube, we can just square root that, and you get 7 cm.
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Find the Slope and the y- intercept for 5x+5y=-40
zheka24 [161]

Answer:

y-intercept= (0,-8)

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Step-by-step explanation:

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Use Cramer’s Rule to solve system of equation.
alisha [4.7K]

\left\{\begin{array}{ccc}5x+2y=4\\3x+4y+2z=6\\7x+3y+4z=29\end{array}\right\\\\A=\left[\begin{array}{ccc}5&2&0\\3&4&2\\7&3&4\end{array}\right]\\\\\det A=5\cdot4\cdot4+3\cdot3\cdot0+2\cdot2\cdot7-7\cdot4\cdot0-3\cdot2\cdot5-3\cdot2\cdot4=54\\W_x=\left[\begin{array}{ccc}4&2&0\\6&4&2\\29&3&4\end{array}\right]\\\det W_x=4\cdot4\cdot4+2\cdot2\cdot29+6\cdot3\cdot0-29\cdot4\cdot0-3\cdot2\cdot4-6\cdot2\cdot4=108

W_y=\left[\begin{array}{ccc}5&4&0\\3&6&2\\7&29&4\end{array}\right]\\\det W_y=5\cdot6\cdot4+3\cdot29\cdot0+4\cdot2\cdot7-7\cdot6\cdot0-29\cdot2\cdot5-3\cdot4\cdot4=-162\\W_z=\left[\begin{array}{ccc}5&2&4\\3&4&6\\7&3&29\end{array}\right]\\\det W_z=5\cdot4\cdot29+3\cdot3\cdot4+6\cdot2\cdot7-7\cdot4\cdot4-3\cdot6\cdot5-3\cdot2\cdot29=324\\\\x=\dfrac{\det W_x}{\det A}=\dfrac{108}{54}=2\\\\y=\dfrac{\det W_y}{\det A}=\dfrac{-62}{54}=-3\\\\z=\dfrac{\det W_z}{\det A}=\dfrac{324}{54}=6

5 0
3 years ago
Create 3 different fractions that are equivalent to 0
Alexeev081 [22]

Answer:

0/2.  0/9.  0/78

Step-by-step explanation:

Anything with a numerator of zero will equal zero.

I hope this helped :D

5 0
3 years ago
Read 2 more answers
Triangle ABC has vertices A(1,2), B(1,5), and C(4,2) and undergoes a transformation. Circle the set of vertices that does not be
allochka39001 [22]
The statement says, "Triangle ABC has vertices A(1,2), B(1,5), and C(4,2) and undergoes a transformation."

The question asked is to find the set of vertices that does not belong to the group. This means that an attachment is expected to be there. The absence of any attachment makes this question hard to answer. Maybe this helps answer you question.

8 0
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