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3 years ago

WILL GIVE BRAINLIEST

Mathematics

1 answer:

Zepler [3.9K]3 years ago

3 0

We Know that in geometry the Cos/Sin = Cotangent. And the abbreviation for this is cotø

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1/2 = 2m what does m equal

max2010maxim [7]

1/4 time 1/4 equals a half...or you can think about it as 25 plus 25 equals 50, (1/2 of a dollar)

8 0

3 years ago

(Please someone help me!) (No links!) I don't know what to do!!

NeTakaya

Answer:

the answer is the last one

Step-by-step explanation:

3 0

2 years ago

Simply the following expressions:

Lapatulllka [165]

Answer:

6.  (2x - 1) 

(3x + 2)

8.  y - 3 

y² - 3y + 9

Step-by-step explanation:

6. 2x² + 9x - 5

3x² + 17x + 10

= (2x - 1) (x + 5)

3x² + 17x + 10

= (2x - 1) (x + 5)

(3x + 2) (x + 5)

=  (2x - 1) 

(3x + 2)

8. y² - 9

y³ + 27

= (y + 3) (y - 3)

y³ + 27

= (y + 3) (y - 3)

(y+3) (y² - 3y + 9)

=  y - 3 

y² - 3y + 9

5 0

3 years ago

Read 2 more answers

Solve the equation x+3/x-4 = x-5/x+4

Serga [27]

Answer:

$\large\boxed{x=\dfrac{1}{2}}$

Step-by-step explanation:

$\dfrac{x+3}{x-4}=\dfrac{x-5}{x+4}\\\\\text{Domain:}\ x-4\neq0\ \wedge\ x+4\neq0\\\\x\neq4\ \wedge\ x\neq-4\\\\D:x\in\mathbb{R}-\{-4,\ 4\}$

$\dfrac{x+3}{x-4}=\dfrac{x-5}{x+4}\qquad\text{cross multiply}\\\\(x+3)(x+4)=(x-4)(x-5)\qquad\text{use FOIL}\ (a+b)(c+d)=ac+ad+bc+bd\\\\(x)(x)+(x)(4)+(3)(x)+(3)(4)=(x)(x)+(x)(-5)+(-4)(x)+(-4)(-5)\\\\x^2+4x+3x+12=x^2-5x-4x+20\qquad\text{combine like terms}\\\\x^2+(4x+3x)+12=x^2+(-5x-4x)+20\\\\x^2+7x+12=x^2-9x+20\qquad\text{subtract}\ x^2\ \text{from both sides}\\\\7x+12=-9x+20\qquad\text{subtract 12 from both sides}\\\\7x=-9x+8\qquad\text{add}\ 9x\ \text{to both sides}\\\\16x=8\qquad\text{divide both sides by 16}\\\\x=\dfrac{8}{16}\\\\x=\dfrac{8:8}{16:8}\\\\x=\dfrac{1}{2}\in D$

7 0

3 years ago

What is the answer to this question?

Degger [83]

Answer:

$y = -\frac{19}{9}x + \frac{5}{3}$

Step-by-step explanation:

Given:

19x + 9y = 15

Required:

Rewrite in slope-intercept form, y = mx + b

SOLUTION:

19x + 9y = 15

Subtract 19x from both sides

9y = -19x + 15

Divide both sides by 9

y = -19x/9 + 15/9

$y = -\frac{19}{9}x + \frac{5}{3}$

5 0

3 years ago