All categories

3 years ago

-6x+14<-28 and 3x+28<25

Mathematics

2 answers:

slava [35]3 years ago

8 0

Answer:

There are no solutions

Step-by-step explanation:

just got the answer

navik [9.2K]3 years ago

6 0

Answer:

A. x ≤ -1 or x > 7

Step-by-step explanation:

-6x+14<-28

or, -6x < -28 - 14 [Changing the side]

or, -6x < -42

or, $\frac{-6x}{-6}$ > $\frac{-42}{-6}$ [Dividing both the sides by -6] [Due to dividing the sides by a negative number, the inequality reverses]

or, x > 7

Therefore, x > 7

3x+28 ≤ 25

or, 3x + 28 - 28 ≤ 25 - 28

or, 3x ≤ -3

or, x ≤ (-3 ÷ 3) [Dividing both the sides by 3]

or, x ≤ -1

Therefore, the answer is x ≤ -1 or x > 7

You might be interested in

X/2=4/8 wut?;-; i dont get ittttt :/

Alexandra [31]

Here
Pls mark brainliest

6 0

3 years ago

Read 2 more answers

This is an easy question but it’s kind of stumping me, please help!!

Kryger [21]

Answer:

-3/2

Step-by-step explanation:

Remeber, to find slope we use this formula:

y - y all over x - x, or (y-y) / (x-x)

(6-9) / (5-3)

-3 / 2

= -3/2

6 0

3 years ago

Read 2 more answers

A group of students are planning a mural at a wall the rectangular wall has dimensions of (6x+7) by (8x+5) and they are planning

zvonat [6]

Answer: $46x^2+73x+15$

Step-by-step explanation:

The area of a rectangle can be calculated with the formula:

$A=lw$

l: the length of the rectangle.

w: the width of the rectangle.

The area of the remaning wall after the mural has been painted, will be the difference of the area of the wall and the area of the mural.

Knowing that the dimensions of the wall are $(6x+7)$ by $(8x+5)$ , its area is:

$A_w=(6x+7)(8x+5)\\\\A_w=48x^2+30x+56x+35\\\\A_w=48x^2+86x+35$

As they are planning that the dimensions of the mural be $(x+4)$ by $(2x+5)$ , its area is:

$A_m=(x+4)(2x+5)\\\\A_m=2x^2+5x+8x+20\\\\A_m=2x^2+13x+20$

Then the area of the remaining wall after the mural has been painted is:

$A_{(remaining)}=A_w-A_m\\\\A_{(remaining)}=48x^2+86x+35-(2x^2+13x+20)\\\\A_{(remaining)}=48x^2+86x+35-2x^2-13x-20\\\\A_{(remaining)}=46x^2+73x+15$

8 0

4 years ago

Use the information provided to calculate the different parts of the proposal: The lazy river is basically a large circle that w

Step2247 [10]

Answer:

10,995.6 ft^3.

2300.3 gallons.

(both to the nearest tenth).

Step-by-step explanation:

Area of the surface of the river = area of the outer circle - area of the inner circle.

Radius of the outer circle = 30 *3 = 90 feet.

So the surface area of the river = π(90)^2 - π(85)^2

= 875π ft^2

Also the volume of the river = surface area * depth = 875π*4 = 3500π ft^3

= 10,995.6 ft^3.

Number of gallons of water it will hold = 10,995.6 / 4.78

= 2300.3 gallons.

4 0

4 years ago

Help i’m a bit confused and it’s due today……

strojnjashka [21]

Step-by-step explanation:

Regression Equation has the firm of,

Y = aX + b

please refer to my attachment for a and b.

So prepare table with columns of Y, X sq(x),......

then work out a and b according.

Finally sub a and b into the equation Y = aX + b

8 0

3 years ago