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3 years ago

Please do 2-6.I’ll give someone Brainiest!!

Mathematics

1 answer:

bazaltina [42]3 years ago

3 0

Answer:

r*4, m+15, 21/k, m-16, 17/g, p+24 . tell me if this is wrong i may have another answer

Step-by-step explanation:

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Reptile [31]

Answer:

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3 years ago

Please help me it not hard

steposvetlana [31]

Answer:

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Step-by-step explanation:

I used a graphing calculator called Desmos.

4 0

3 years ago

Read 2 more answers

Solve the system: 2/x - 3/y =-5; 4/x + 6\y =14

sertanlavr [38]

The solution is $x = 2 \text{ and } y = \frac{1}{2}$

Solution:

Let us assume,

$a = \frac{1}{x}\\\\b = \frac{1}{y}$

Given system of equations are:

$\frac{2}{x} - \frac{3}{y} = -5$

$\frac{4}{x} + \frac{6}{y} = 14$

Rewrite the equation using "a" and "b"

2a - 3b = -5 ------------ eqn 1

4a + 6b = 14 -------------- eqn 2

Let us solve eqn 1 and eqn 2

Multiply eqn 1 by 2

2(2a - 3b = -5)

4a - 6b = -10 ------------- eqn 3

Add eqn 2 and eqn 3

4a + 6b = 14

4a - 6b = -10

( - ) --------------------

8a = 4

$a = \frac{4}{8}\\\\a = \frac{1}{2}$

Substitute a = 1/2 in eqn 1

$2(\frac{1}{2}) -3b = -5\\\\1 - 3b = -5\\\\3b = 6\\\\b = 2$

Now let us go back to our assumed values

Substitute a = 1/2 in assumed values

$a = \frac{1}{x}\\\\\frac{1}{2} = \frac{1}{x}\\\\x = 2$

Substitute b = 2 in assumed value

$b = \frac{1}{y}\\\\2 = \frac{1}{y}\\\\y = \frac{1}{2}$

Thus the solution is $x = 2 \text{ and } y = \frac{1}{2}$

3 0

3 years ago

If r = 9, b = 5, and g=-6, what does (r+b-g) (b+g) equal? O-20 O-8 08 O 19 O 20

Colt1911 [192]

Answer:

-20...........................

7 0

1 year ago

Please help. Algebra.

Anuta_ua [19.1K]

Answer:

The answer is sometimes.

If the two lines have the same slope, then there will be 0 solutions, and if the two lines are the same, then there will be infinite solutions.

Hope this helps!

8 0

3 years ago