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Vaselesa [24]
2 years ago
11

What’s the answer?????20 points!!!!

Mathematics
2 answers:
jasenka [17]2 years ago
5 0

Answer:

i think 6,300

Step-by-step explanation:

swat322 years ago
4 0

Answer:

I believe the answer is c <3

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barxatty [35]

On question 9, x = 0.46284330

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2 years ago
Simplify the expression​
ycow [4]

Answer:

4k(2k² - 5k - 4) + 5(2k² - 5k - 4)

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Wat does 1unit = you will get brainly
Morgarella [4.7K]

Answer:

In that phrase, "unit" means "equal to 1".

Step-by-step explanation:

Hopes this helps.

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2 years ago
Use cramers Rule to solve the following system:
Jet001 [13]

Answer:

The solution to the system is x=1,y=-2 and z=-5

Step-by-step explanation:

Cramer's rule defines the solution of a system of equations in the following way:

x= \frac{D_x}{D}, y= \frac{D_y}{D} and z= \frac{D_z}{D} where D_x, D_y and D_z are the determinants formed by replacing the x,y and z-column values with the answer-column values respectively. D is the determinant of the system. Let's see how this rule applies to this system.

The system can be written in matrix form like:

\left[\begin{array}{ccc}5&-3&1\\0&2&-3\\7&10&0\end{array}\right]\times \left[\begin{array}{c}x&y&z\end{array}\right] = \left[\begin{array}{c}6&11&-13\end{array}\right]

Then each of the previous determinants are given by:

D_x = \left|\begin{array}{ccc}6&-3&1\\11&2&-3\\-13&10&0\end{array}\right|=199 Notice how the x-column has been substituted with the answer-column one.

D_y = \left|\begin{array}{ccc}5&6&1\\0&11&-3\\7&-13&0\end{array}\right|=-398 Notice how the y-column has been substituted with the answer-column one.

D_z = \left|\begin{array}{ccc}5&-3&6\\0&2&11\\7&10&-13\end{array}\right|=-995

Then, substituting the values:

x= \frac{D_x}{D}=\frac{199}{199}\\ x=1

x= \frac{D_y}{D}=\frac{-398}{199}\\ y=-2

x= \frac{D_z}{D}=\frac{-995}{199}\\ x=-5

3 0
2 years ago
Jack is walking on a trail and comes to mile mark 5. If he continues walking for another mile, what is the next mile marker he w
Ad libitum [116K]

Answer:

I would say 6 or 4, if we don't know which direction <u>he</u><u> </u><u>is</u><u> </u><u>walking</u><u> </u>

7 0
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