2 years ago

Simplify the expression: -4z -6 - 7z + 3

Mathematics

1 answer:

Mnenie [13.5K]2 years ago

6 0

The answer would be -11 z - 3

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PLEASE HELP

kifflom [539]

$\\ \sf\longmapsto \dfrac{x^2-1}{x^2+5x+4}\leqslant 0$

Solving denominator

$\\ \sf\longmapsto x^2+5x+4>0$

$\\ \sf\longmapsto x^2+4x+x+4>0$

$\\ \sf\longmapsto x(x+4)+1(x+4)>0$

$\\ \sf\longmapsto (x+4)(x+1)>0$

$\\ \sf\longmapsto x>-4\:or x>-1$

Hence x $\neq$ -1
x can't be 0 as it makes function undefined

$\\ \sf\longmapsto -4$

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2 years ago

Find the slope of the line (brainlist whoever gets it right first and extra points on this question)

nekit [7.7K]

Answer:

y = -3x

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Is 4 m < > or equal to 400 dm

lys-0071 [83]

It is less than
4 meters equal 40 decimeters

4 0

2 years ago

Read 2 more answers

What does k equal if <br>485= 1/((k)(5.99x10^-3))

Verizon [17]

$k\ne 0$

$485=\frac{1}{(k)(5.99*10^{-3})}\\\\ \frac{485}{1}= \frac{1}{0.00599k}\\\\ 485*0.00599k=1\\\\ k=\frac{1}{485*0.00599}\\\\k\approx 0.3442$

7 0

2 years ago

Select the correct answer.

Afina-wow [57]

Answer:

$d)\ \frac{81}{m^{7}}$

Step-by-step explanation:

$(3m^-4)^3(3m^5)$

First, simplify $(3m^{-4})^3$ :

$(3m^{-4})^3\\\\3^3*m^{-4*3}\\\\27m^{-12}$

$27m^{-12}*3m^5\\\\27*3 *m^{-12+5}\\\\81m^{-7}\\\\81*\frac{1}{m^{7}} \\\\\frac{81}{m^{7}}$

Hope this helps!

5 0

1 year ago