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kozerog [31]
3 years ago
15

I need assistance solving these questions using Cramers' Rule (which I am frankly terrible at) and need these to finish my homew

ork, Thank you!

Mathematics
2 answers:
shepuryov [24]3 years ago
6 0

Answer:

Step-by-step explanation:

This is a solved example, might help

Scrat [10]3 years ago
3 0

Answer:

What are the questions?

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What type(s) of symmetry does the figure have?
Troyanec [42]

Answer:

both points and rotational only

4 0
3 years ago
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How do I solve for x? <br>10x+6=8-2(x+6)
Neporo4naja [7]

1. 10x+6=8-2(x+6)

2. 10x+6=6(x+6)

(distribute the 6)

3. 10x+6=6x+36

(Move the 6x to the other side by subtracting)

4. 4x+6=36

(Move the 6 to the other side by subtracting)

5. 4x=30

(divide)

x=7.5


Hope this helped! :)

6 0
3 years ago
In six months the membership at a fitness center went from 3,500 to 4,200. what was the percent of increase in the membership?
slega [8]
It is definitely C: 20%

Subtract the original value from the new value, then divide the result by the original value then multiply the result by 100 and it will give you the answer

\frac{4200 - 3500}{3500}  \times 100
\frac{700}{3500}  \times 100
0.2 \times 100 = 20\%
6 0
3 years ago
A certain circle can be represented by the following equation. x^2+y^2+6y-72=0 What is the center of this circle ?
jek_recluse [69]

Answer:

(0, -3)

Step-by-step explanation:

Here we'll rewrite x^2+y^2+6y-72=0 using "completing the square."

Rearranging x^2+y^2+6y-72=0, we get  x^2 + y^2 + 6y                = 72.

x^2 is already a perfect square.  Focus on rewriting y^2 + 6y as the square of a binomial:  y^2 + 6y becomes a perfect square if we add 9 and then subtract 9:

x^2 + y^2 + 6y + 9  - 9              = 72:

x^2 + (y + 3)^2 = 81

Comparing this to the standard equation of a circle with center at (h, k) and radius r,

(x - h)^2 + (y - k)^2 = r^2.  Then h = 0, k = -3 and r = 9.

The center of the circle is (h, k), or (0, -3).

8 0
3 years ago
N is an integer<br> write down all the possible values of n<br><br> -2≤n&lt;5
melisa1 [442]

Answer:

-2, -1, 0, 1, 2, 3, 4

Step-by-step explanation:

The number has to be smaller than 5 but greater than or equal to - 2

8 0
3 years ago
Read 2 more answers
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