All categories

2 years ago

2X +7 < 3X -5——————————————————————————————-

Mathematics

2 answers:

Andrew [12]2 years ago

7 0

Answer:

x=12

Step-by-step explanation:

2x+7=3x-5

2x=3x-5-7

2x=3x-12

2x-3x=-12

-x=-12

x=12

2x+7=0

2x=-7

x=-3.5

3x-5=0

3x=5

x=1.6

-3.5<1.6

mr Goodwill [35]2 years ago

6 0

Answer:

x>12

Step-by-step explanation:

You might be interested in

Write the ratio as a fraction in simplest form, with the whole numbers In the numerator and denominator. 1.4L : 4.9 L

lidiya [134]

1.4L : 4.9L
$= \frac{1.4}{0.7} L:\frac{4.9}{0.7}L$
=2L : 7L

8 0

2 years ago

Can someone please help me i would just need the answer

o-na [289]

Answer:

80+50P

Step-by-step explanation:

80 is fixed

50 is variable

1 device = 130

2 decices = 180

8 0

3 years ago

Alison has some shapes. She has 14 red cubes and 10 red spheres. She has 12 black cubes and 8 black spheres. Alison is going to

KengaRu [80]

Answer:

Step-by-step explanation:

6 0

2 years ago

A: What are the solutions to the quadratic equation x2+9=0? B: What is the factored form of the quadratic expression x2+9? Selec

Paraphin [41]

Answer:

A. The solutions are $x=3i,\:x=-3i$ .

B. The factored form of the quadratic expression $x^2+9=(x-3i)(x+3i)$

Step-by-step explanation:

A. To find the solutions to the quadratic equation $x^2+9=0$ you must:

$\mathrm{Subtract\:}9\mathrm{\:from\:both\:sides}\\\\x^2+9-9=0-9\\\\\mathrm{Simplify}\\\\x^2=-9\\\\\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}\\\\x=\sqrt{-9},\:x=-\sqrt{-9}$

$x=\sqrt{-9} = \sqrt{-1}\sqrt{9}=\sqrt{9}i=3i\\\\x=-\sqrt{-9}=-\sqrt{-1}\sqrt{9}=-\sqrt{9}i=-3i$

The solutions are:

$x=3i,\:x=-3i$

B. Two expressions are equivalent to each other if they represent the same value no matter which values we choose for the variables.

To factor $x^2+9$ :

First, multiply the constant in the polynomial by $i^2$ where $i^2$ is equal to -1.

$x^2+9i^2$

Since both terms are perfect squares, factor using the difference of squares formula

$a^2-i^2=(a+i)(a-i)$

$x^2+9=x^2+9i^2=\left(-3i+x\right)\left(3i+x\right)$

5 0

2 years ago

How do you write an equation of a line that is parallel line to y=8x-8 through the point (5,2)

Andreyy89

Parallel means that the two equations have the same slope,

so we have y = 8x + b so far.

Then we can just apply the slope to the given point by taking the y value and decreasing it by 40, due to the x value being 5

So in short, the equation that runs parallel to y = 8x-8 and intersect the point (5,2) is y = 8x -38

8 0

2 years ago

2X +7 < 3X -5——————————————————————————————-￼

2X +7 < 3X -5——————————————————————————————-