Explain when you should reverse the inequality symbol when solving an equality.

Answers

Answer 1
You must “reverse” the inequality sign to make the statement true: When you multiply by a negative number, “reverse” the inequality sign. Whenever you multiply or divide both sides of an inequality by a negative number, the inequality sign must be reversed in order to keep a true statement.

Related Questions

is this a function?

Answers

Answer:

yes

Step-by-step explanation:

yes it is a function

Find all angles, 0°< A<360°, that satisfy the equation below, to the nearest tenth
of a degree (if necessary).
3 tan A+75 = 0

Answers

Answer:

143.3 degrees and 323.3 degrees

Step-by-step explanation:

Given the equation

3tanA +√5 = 0

3tanA = -√5

tanA =-√5/3

tanA = (-0.7454)

A = arctan(-0.7453)

A = -36.699

Since tan is negative in 2nd and 4th quadrant

A = 180 - 36.699

A = 143.3 degrees

In the fourth quadrant

A = 360 - 36.699

A = 323.3degrees

Hence the value of A that satisfies the equation are 143.3 degrees and 323.3 degrees

Lance is drawing a triangle. He draws one side that is 8 inches long and another side that is 5 inches
long. Which one of the following could be the third side?

Answers

Answer:

6 inches

Step-by-step explanation:

(8-5)>x>(5+8)

UHHHHH IM GONNA FAIL MATH YALL

Just answer it ig-?
I WILL MARK AS BRAINLIEST

Answers

Answer:

30.96 m^2

Step-by-step explanation:

Side length of the square is also the diameter of the semicircle so:

r = 0.5 * 12 m = 6 m

Since you want the area of the shaded area, you have to subtract the area of both semi circles from the area of the square:

Square Area - Semi Circle Area - Semi Circle Area = Shaded Region Area

(12 m * 12 m) - (0.5 * 3.14 * 6^2 m) - (0.5 * 3.14 * 6^2 m)

= 144 - 56.52 - 56.52

= 30.96 m^2

PLEASE HELP IMMIDEATIALY BFHBGDWAHDW

Answers

Answer:

zeros and AoS

Step-by-step explanation:

zeros, x = (1 , -7)

AoS:x =-1

if the volume is 120, the length is 6 and the height is 5 what is the width?

Answers

The width is 4. 6lx5hx4w=120 volume
The equation is length times with times height so 6 x X x 5 = 120

WILL MARK BRAINLIEST!
Elevation questions:
1. how much higher is 500 than -400 m
2. how much higher is -200 m than 450 m

Answers

Answer: 900 and 650

Step-by-step explanation: so because 400 is negative, it would take 400 to get to 0 and 500 more to get to 500 so 900 for 1. And same thing for the second one, -200 plus 200 is 0 plus 450, it’s 650

Write an equation of a line that is perpendicular to the line y = 2/3x + 5 and that passes through the point (0,0)?

Answers

Answer

y=(2)/(3)x-5

Step-by-step explanation:

Help help help help help help help

Answers

Answer:

35/14

Step-by-step explanation:

Volume = 4 * h * 7 / 2 = 14h

35/14 = h

x - 3( 2 - 3x)=2 ( 5x - 2)

Please solve !!

Answers

Step-by-step explanation:

I hope that this helps:)

x-6+9x=10x-4

10x-6=10x-4

-6=-4

Tha statement is false for any value of x

x=0 no solution

What steps should be followed to solve the inequality -4x < 8.

Answers

Answer:

8 is greater then -4

Step-by-step explanation:

Answer: Divide by -4 in the both sides, and change the sign < to >.

Step-by-step explanation:

What is the area of the right trapezoid?
A) 28 square inches
B) 35 square inches
C) 56 square inches
D) 70 square inches

Answers

Answer:

c

Step-by-step explanation:

because are of trapizium =( a+b/2) × h

Standard Form of a linear equation. Match the phrase with the equivalent term
Ax + By = C

equation
line
point
x-intercept
y-intercept

Which one is correct I’ll mark Brainlest

Answers

Answer:

pretty sure its equation, if its wrong im sorry!

help ASAP ill mark u brainliest

Answers

if I remember correctly, it’s the first one

chris sold a watch for $1500 thereby making a profit of 20% calculate the amount chris payed for the watch

Answers

Picture? So I can see?

Jean junction is selling jeans at 12% off the regular price. The regular price is $32.00 per pair. What is the discount amount

Answers

Discount amount is 3.75 I think!

help i dont get it pelase

Answers

Step-by-step explanation:

(-1,3)

just move the point over 5 lines and then up 4 lines. or

4-5 = -1

-1 +4=3

What is the EXACT circumference of a circle that has a radius of 10 cm? Use "pi" to represent the pi symbol in your answer if necessary. ex. 15 times pi would be written as 15pi. ?

Answers

Answer:

62.8

Step-by-step explanation:

c = 2 pi r

c = 2 * 3.14 * 10

c = 62.8

On average, it takes Xavier \large 2\frac{1}{6}hours to drive to his Mom's house. After \large 1\frac{3}{4}hours, how many hours does he have left to drive?

Answers

2 because  iiiiiiiiiiiiiiiiiiiiiiiiii

Add or Subtract to simplify

Answers

Answer:

-5x^5 + 2x^3 - 6x should be your answer

Will be marked brainliest if answered correctly

Answers

Answer:

the second one

Step-by-step explanation:

Answer:

Hope that answers your question

A ladder leaning against a wall makes a 60° angle with the ground. The base of the ladder is 3 m from the building. How high above the ground is the top of the ladder?

Answers

Answer:

The distance is 5.20m

Step-by-step explanation:

Here, we want to get the height of the ladder

To get this, we need to understand that we have a right triangle, with the base of the triangle as 3 m, the angle at the downward part is 60, and we want to get the height of the triangle

The angle here faces the height we want to calculate

This height is known as the opposite

What we have is the adjacent

Now, the trigonometric identity that relates the opposite and the adjacent is the tan

The tangent of an angle is the ratio of the opposite to the adjacent

Mathematically;

tan 60 = h/3

h = 3 tan 60

h = 5.20 m

The ladder is at a height of 5.20 m above the ground

A pet home owner wants to keep the ratio of cats to dogs at 3:5. She has 21 cats, how many dogs are there in the pet home?

Answers

35 dogs

Step-by-step explanation:

The ratio of cats to dogs can also be written as

3/5 = 21/x

x = 35

What is the inverse of the function

Answers

Answer:

second option

Step-by-step explanation:

let y = f(x) and rearrange making x the subject, that is

y = x - 9 ( add 9 to both sides

y + 9 = x

Change y back into terms of x with x = [tex]f^{-1}[/tex] (x) , then

[tex]f^{-1}[/tex] (x) = x + 9

A farmer harvested 1,635 pounds of potatoes. She could buy either small bags that hold 10 pounds of potatoes, medium-sized bags that hold 12 pounds, or large bags that hold 25 pounds. She will use bags that are all the same size and must select one size only.

Which size bag should the farmer use to package the potatoes so the fewest pounds are left over after packaging

Answers

Answer:

She should buy the medium sized bags.

Ryan bought a brand new car for $18,000. It's value depreciated at a rate of 1.2% write a function to represent the value of the car as a function of time

Answers

Answer:

gds

Step-by-step explanation:

hgfdz

b

Which expression is equivalent to 6(5m-7)

a 11m-13
b 11m-42
c 30m-13
d 30m-42

Answers

Answer:

30m-42 (D)

Step-by-step explanation:

Let's evaluate the expression,

6(5m-7)

30m-42

If you have any questions, let me know!

FIND THE VALUE OF X

Answers

Answer:

x = 9

Step-by-step explanation:

diagonals bisect each other so we can set up these equations:

x+8 = 2y+5

2x = 3y

in the top equation we can solve for 'x': x = 2y-3

in the second equation we can solve for 'x': x = 3y/2

2y-3 = 3y/2

multiply each side by 2 to eliminate fractions:

4y - 6 = 3y

4y = 3y + 6

y = 6

2x = 3(6)

2x = 18

x = 9

can you help me with this please​

Answers

Answer:

a)  y = 2 x - 1

b)  y = - x + 7

c)  y = 7 x + 2

Step-by-step explanation:

Use a pair of (x1, y1) and (x2, y2) points to find the equation of the line for each tables:

a) (5, 9) and (10, 19)

slope: (y2 - y1) / (x2 - x1) = (19 - 9) / (10 - 5) = 10 / 5 = 2

Then  y = 2 x + b

solve for b in:  9 = 2 (5) + b

b = 9 - 10 = -1

Then   y = 2 x - 1

b) (2, 5) and (5, 2)

slope: (y2 - y1) / (x2 - x1) = (2 - 5) / (5 - 2) = -3 / 3 = -1

Then  y = - x + b

solve for b in:  5 = - (2) + b

b = 5 + 2 = 7

Then   y = - x + 7

c) (3, 23) and (6, 44)

slope: (y2 - y1) / (x2 - x1) = (44 - 23) / (6 - 3) = 21 / 3 = 7

Then  y = 7 x + b

solve for b in:  23 = 7 (3) + b

b = 23 - 21 = 2

Then   y = 7 x + 2

A square has an area of 36 m2. The square is scaled in such a way that its area is increased by 28 m2. What is the approximate factor by which the length of the side of the square is increased?

Answers

Answer:

28/36 shd give u the answer

answer in 1:ur answer

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