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olga nikolaevna [1]
2 years ago
13

WILL MAKE BRAINLIST!!!!!!

Mathematics
1 answer:
bixtya [17]2 years ago
4 0

Answer:

To do this, subtract 6 from both sides. − 3_x_ + 6 − 6 > 12 − 6. −3_x_ > 6. Now divide both sides of the inequality by −3. Since you're dividing by a negative number, you need to flip the inequality sign.

Step-by-step explanation:

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What is the ratio of a nickel to one dollar? reduce to simplest form
makkiz [27]

1:0.05

I think this is the answer

3 0
3 years ago
Brainly use a matrix to find the solution to the system of equations -8x-8y=-16 6x-9y=-108
Mama L [17]
We want to use a matrix to solve
-8x - 8y = -16
6x - 9y = -108

Before solving, simplify the equations as follows:
Divide the first equation by -8 to obtain
x + y = 2             (1)
Divide the second equation by 3 to obtain
2x - 3y = -36       (2)

In matrix form, the equations are
\begin{bmatrix}1&1\\2&-3\end{bmatrix} \begin{\bmatrix} x\\y\end{bmatrix}=\begin{bmatrix}2 \\ -36 \end{bmatrix}

The determinant of the matrix is
D = (1)(-3) - (1)(2) = -5

Use Cramer's Rule.
x =  \frac{1}{D} det(\begin{bmatrix}2&1\\-36&-3 \end{bmatrix} ) =  \frac{1}{-5} (-6+36) = -6
Similalrly, 
y= \frac{1}{-5} det(\begin{bmatrix} 1&2\\2&-36\end{bmatrix} ) = \frac{1}{-5}(-36-4) =8

Answer:  (-6, 8)  or x = -6, y = 8


8 0
3 years ago
Drag the tiles to the correct boxes to complete the pairs.
Julli [10]

Answer:

1 = A

2 = D

3 = B

4 = C

Step-by-step explanation:

3 0
3 years ago
Please HELP ME!!!! This is really confusing. HOW DO I DO THIS?!?!?!
Svetradugi [14.3K]

Answer:

Flying Disc should be 72

Step-by-step explanation:

circumference = πd

<u>HD Coin</u>    C = 3π

                  9.42477796077

<u>Flying Disc</u>.  C = 23π
                      <u><em>72.2566310326</em></u>

<u><em>
</em></u><u>Jar Lid </u>      C = 8π

                  25.1327412287

<u>Flower Pot</u>     C = 15π

                        47.1238898038

8 0
1 year ago
A ball is thrown upward from the top of a 40 foot high building at a speed of 80 feet per second. The ball's height above
tekilochka [14]

it takes 5 seconds to reach a height of 40 ft. and It takes 2.5 seconds to reach maximum height.

Let h(t) represent the height of the ball at time t.

Given that the height is given by:

h(t) = -16t² + 80t + 40

1) For the ball to reach a height 0f 40 ft, h(t) = 40, hence:

40 = -16t² + 80t + 40

16t² - 80t = 0

t(t - 5) = 0

t = 0 or t = 5

Hence it takes 5 seconds to reach a height of 40 ft.

2) The maximum height is at h'(t) = 0,

h'(t) = -32t + 80

-32t + 80 = 0

32t = 80

t = 2.5

It takes 2.5 seconds to reach maximum height.

Find out more at: brainly.com/question/11535666

5 0
3 years ago
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