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2 years ago

Write the augmented matrix for each system of equations.

Mathematics

1 answer:

Virty [35]2 years ago

8 0

Answer:

see below

Step-by-step explanation:

List the coefficients and constant for an equation in one row of the matrix. The variables should be in the same order. Any missing terms are replaced by zero.

$\left[\begin{array}{ccc|c}9&-4&-5&9\\7&4&-4&-1\\6&-6&1&-5\end{array}\right]$

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3(x-6) + 4 + 5x - 6 (use distributive property) please help asap!

Dmitry_Shevchenko [17]

Answer:

8x - 20

Step-by-step explanation:

3(x - 6) + 4 + 5x - 6 $\longmapsto$ Distribute 3 to (x - 6)

3(x) - 3(6) + 4 + 5x - 6

3x - 18 + 4 + 5x - 6

Simplify:

3x + 5x - 18 + 4 - 6

8x -18 - 2

8x - 20

-Chetan K

3 0

2 years ago

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A carnival ride is in the shape of a wheel with a radius of 25 feet. The wheel has 20 cars attached to the center of the wheel.

Vladimir79 [104]

Centre angle will be 360° as its totally a circle.

radius=r=25ft

Angle between two cars=360/20=18°

Arc length=L

$\\ \sf\longmapsto L=\dfrac{\theta}{360}(2\pi r)$

$\\ \sf\longmapsto L=\dfrac{18}{360}(2\pi(25))$

$\\ \sf\longmapsto L=\dfrac{1}{20}(50\pi)$

$\\ \sf\longmapsto L=2.5\pi ft$

Now

Area be A

$\\ \sf\longmapsto A=\dfrac{1}{2}Lr^2$

$\\ \sf\longmapsto A=\dfrac{1}{2}(2.5\pi)(25)^2$

$\\ \sf\longmapsto A=625(2.5)\pi\dfrac{1}{2}$

$\\ \sf\longmapsto A=1562.5\pi/2$

$\\ \sf\longmapsto A=781\pi ft^2=$

4 0

2 years ago

I need help because i’m not smart :)

8_murik_8 [283]

What is it referring too? is there a graph to it???

4 0

2 years ago

Read 2 more answers

NEED HELP ASAP PLEASE

kati45 [8]

Answer: its (0,2/3)

Step-by-step explanation: i say this because 2/3 equal 0.6 so 0.6 will be on the y-axis and 0 will be on the x-axis, this will equal a line that meats up wit R and is parallel to PQ. I hope this helps.

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3 years ago

PLEASE HELP QUICKLY: (FIRST ANSWER GETS BRAINLIEST)

kodGreya [7K]

Answer:

Buy the batteries and stereo online:

4.99*2= $9.98 +$90 = $99.98

6.99-5.00 = $1.99

99.98+1.99=$101.97

3Cds in store

7.97*3= $23.85

5% tax = 1.19

10% off = 2.39

$23.85 - $1.19= $22.66

22.66 + 101.97= $124.63

All in store:

12+100+23.85= 135.85 - 6.45 = $129.40

All online:

9.98 + 90 + 26.85= 126.85 +$1.99 = 128.84

(CREDIT: Hussain514)

8 0

3 years ago