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3 years ago

13 + 2v - 8 + 6 > -7 - v please simplify and explain in number form!

Mathematics

1 answer:

dmitriy555 [2]3 years ago

7 0

Answer:-6>v

Step-by-step explanation:

13+2v-8+6>-7-v

11+2v>-7-v

+7-2v>+7-2v

18>-3v

18/-3>-3/-3v

-6>v

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Write a compound inequality to represent all of the numbers between -4 and 6.

blondinia [14]

-4 < 6
Negative number always less than positive number

4 0

4 years ago

una ventana rectangular tiene l metros de ancho y h metros de altura, con un perímetro de 6 metros y un área de 2m² ¿cuál es la

seropon [69]

Answer:

The formula for calculating the width of the window is

$w=\frac{-(-3)(+/-)\sqrt{-3^{2}-4(1)(2)}} {2(1)}$

Step-by-step explanation:

The question in English is

A rectangular window is l meters wide and h meters high, with a perimeter of 6 meters and an area of 2m². What is the formula for calculating the width of the window?

we know that

The perimeter of the window is equal to

$P=2(l+w)$

we have

$P=6\ m$

$6=2(l+w)$

simplify

$3=(l+w)$

isolate the variable l

$l=3-w$ ----> equation A

The area of the window is equal to

$A=lw$

we have

$A=2\ m^2$

$2=lw$ ----> equation B

substitute equation A in equation B

$2=(3-w)w$

solve for w

$2=3w-w^2$

$w^2-3w+2=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$w^2-3w+2=0$

$a=1\\b=-3\\c=2$

substitute in the formula

$w=\frac{-(-3)(+/-)\sqrt{-3^{2}-4(1)(2)}} {2(1)}$ ---> formula for calculating the width of the window

$w=\frac{3(+/-)\sqrt{1}} {2}$

$w=\frac{3(+/-)1} {2}$

$w=\frac{3(+)1} {2}=2\ m$

$w=\frac{3(-)1} {2}=1\ m$

7 0

4 years ago

Pleasee mwa mwa mwa help me

sammy [17]

Answer: About (-2.414, 0) and (0.414, 0)

Step-by-step explanation:

Let us graph the equation given and see what the x-intercepts are. These are points where the line intercepts the x-axis. See attached.

This means our x-intercepts are at about (-2.414, 0) and (0.414, 0).

These are also equal to $-1-\sqrt{2}$ and $-1+\sqrt{2}$

8 0

2 years ago

Read 2 more answers

Which angle pairs are supplementary? Check all that apply.

Zina [86]

Answer:

Supplementary Angles are two angles the sum of whose measures is 180º. Supplementary angles can be placed so they form a linear pair (straight line), or they may be two separate angles.

7 0

3 years ago

Read 2 more answers

A square has a side length of 5 and 1/4 inches what is the area of a square

padilas [110]

Answer: 27.5625 or 27.6

Explanation:
A square has even side lengths so each side equals 5 1/4 or 5.25. So you take two sides and multiply them together. In other words, 5.25•5.25. Then you get roughly 27.6 rounded

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3 years ago