All categories

3 years ago

Answer quick for brainliest.

Mathematics

2 answers:

Ilya [14]3 years ago

8 0

Answer:

4) x = -11 5) x = 4 6) x = -5 7) x = -20

Step-by-step explanation:

Subtract 7 from both sides.

x+7-7 = -4-7

x = -11

Add 5 to each side.

x-5+5 = -1+5

x = 4

Add 7 to each side.

-7 + 7+x = -12+7

x = -5

Subtract 6 from each side.

6-6+x = -14-6

x = -20

olga2289 [7]3 years ago

5 0

Answer:

x=-11

x=4

x=-5

x=-20

Step-by-step explanation:

jsj

You might be interested in

Can Ny body help pls

Maslowich

Answer:

Thank god im virtual

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Please show your work and explain it.

Maru [420]

Answer:

$f(x)=\dfrac{x+2}{2(x-2)}$

Step-by-step explanation:

Remember when you divide fractions, you need to get the reciprocal of the divisor and multiply. So your first simplification would be:

$\dfrac{x^2+4x+4}{x^2-6x+8}\div\dfrac{6x+12}{3x-12}\\\\=\dfrac{x^2+4x+4}{x^2-6x+8}\times\dfrac{3x-12}{6x+12}\\\\=\dfrac{(x^2+4x+4)(3x-12)}{(x^2-6x+8)(6x+12)}$

Next we factor what we can so we can further simplify the rest of the equation:

$=\dfrac{(x^2+4x+4)(3x-12)}{(x^2-6x+8)(6x+12)}\\\\=\dfrac{(x+2)(x+2)(3x-12)}{(x^2-6x+8)(6(x+2))}\\\\$

We can now cancel out (x+2)

$=\dfrac{(x+2)(3x-12)}{(x^2-6x+8)(6)}$

Next we factor out even more:

$=\dfrac{(x+2)(3)(x-4)}{(x-2)(x-4)(6)}$

We cancel out x-4 and reduce the 3 and 6 into simpler terms:

$=\dfrac{(x+2)(1)}{(x-2)(2)}$

And we can now simplify it to:

$=\dfrac{x+2}{2(x-2)}$

6 0

3 years ago

A coordinate plane with a straight line with a negative slope, with endpoints at, (0, 9) and (9, 0) The slope of the graph is –1

zaharov [31]

Answer:

D .candle burns down 1 cm per hour

Step-by-step explanation:

this is the answer i just got it rigth

7 0

3 years ago

Read 2 more answers

7,,,,,,,,,,,,,,,,,,,,please help

Goryan [66]

Answer:

Step-by-step explanation:

The given expression is

$\frac{2^{\frac{11}{2} }\times 2^{-7}\times 2^{-5}}{2^3\times 2^{\frac{1}{2} }\times 2^{-10}}$

Recall and use

$a^m\times a^n=a^{m+n}$

$\frac{2^{\frac{11}{2} -7-5}}{ 2^{3+\frac{1}{2} -10}}$

$\frac{2^{-\frac{13}{2}}}{ 2^{-\frac{13}{2}}}$

Same bases are dividing, so we write one base and subtract the exponent.

$2^{-\frac{13}{2}+\frac{13}{2}}$

$2^0=1$

8 0

3 years ago

What is the measure of ∠4? Enter your answer in the box.

charle [14.2K]

Step-by-step explanation:

$\angle 4, \:60\degree \:\&\:61\degree$ are straight line angles.

$\therefore \angle \: 4 + 60 \degree + 60 \degree = 180\degree \\ \\ \therefore \: \angle \: 4 = 180\degree - 121\degree \\ \\ \huge \red {\boxed {\therefore \: \angle \: 4 = 59\degree}}$

4 0

2 years ago

Read 2 more answers