Mathematics High School

Which of the four statements is true and also write a one-step inequality as an example of when you would "flip" the sign.

Answers

Answer 1

Step-by-step explanation:

There are 5 types of Inequality sign :

1. = read  '' equals to ''

2. > read '' greater than ''

3. < read '' less than ''

4. ≥ read '' greater than or equals to ''

5. ≤ read '' less than or equals to ''

Example -

1. 2 = 3   ( 2 is equals to 3 )

2. 3 > 2 ( 3 is greater than 2 )

3. 2< 4  ( 2 is less than 4 )

4. 3 ≥ 2 ( 3 is greater than or equals to 2)

5. 2 ≤ 4 ( 2 is less than or equals to 4 )

One - step inequality :

Addition and Subtraction Properties of Inequality -

If a > b, then a + c > b + c

If a > b, then a − c > b − c

Multiplication and Division Properties of Inequality -

If a > b, then ac > bc, if c > 0

If a > b, then ac < bc, if c < 0

If a > b, then [tex]\frac{a}{c} > \frac{b}{c}[/tex], if c > 0

If a > b, then [tex]\frac{a}{c} < \frac{b}{c}[/tex],, if c < 0

The inequality x > y can also be written as y < x. The sides of any inequality can be switched as long as the inequality symbol between them is also reversed(or flip ).Solving inequalities is same as solving equations, except you have to reverse( or flip ) the inequality symbols when you multiply or divide both sides of an inequality by a negative number.

Related Questions

40 people can ride the roller coaster every 15 minutes. How many people can ride the roller coaster every 3 hours?

Answers

Answer:

480

Step-by-step explanation:

Answer:

486 people can ride the roller coaster in 3 hours

Step-by-step explanation:

40÷15 = 2.7

2.7 × (60×3)

2.7×180= 486

14m - 9n + 2n -3(3m - 4)

Answers

Answer:

14m-7n-3

Step-by-step explanation:

Answer:

5m-7n+12

Step-by-step explanation:

i’m a little bit confused for this one i just need to know what doesn’t belong

Answers

Answer:

C

Step-by-step explanation:

there is no other line

A farmer has a field in the shape of a semicircle of diameter 50 m. First,
calculate the length of the semicircle to 1 decimal place.
50 m

Answers

Answer:

157.1 m

Step-by-step explanation:

Here, we want to calculate the length of the semi-circle

This simply refers to the circumference of the semi-circle

Mathematically, the circumference is half that of a full circle

The circumference of a full circle is;

C = pi * d

For half circle or semi-circle;

It is ;

C = (pi * d)/2

D = 50 m

The circumference is thus;

C = 50 * 3.142

C = 157.1 m

I really need help ASAP pls I think it’s c but I’m not sure

Answers

i think that the answer will be c

Answer:

C.

Step-by-step explanation:

Because angle TQR & angle TRU are complementary angles, meaning they add up to 90º.

So if TQR = 18, then:

(X- the measure of TRU)

X + 18 = 90

solve for x:

X + (18-18) = 90 - 18

X= 72

Hope this helps! Have a great day!

6. The human brain weighes about 1 pounds for each 100 pounds of body weight. What
is the approximate weight of the brain of a person who weighs 85 pounds. Round to
the nearest ounce.
all

Answers

I did a proportion and I think the answer is 13.6 or 14 after being rounded

Which expressions are polynomials? Select each correct answer. x2−x√+2 2 + s 4x³ + y​

Answers

Answer:

Answers are

Y

2+s

4x^3+y

Step-by-step explanation:

15 NEED HELP ASAP WILL GIVE BRAINLY

Answers

Answer:

The first answer is correct because the angle it gives you in the 3rd picture at the bottom left is congruent with X,  therefore makeing the X 100.

Step-by-step explanation:

paul got 72 marks in a maths test. 72 marks is 60% of the total number of marks. work out the total number of marks in the test ​

Answers

Answer:

115.2 total marks.

Step-by-step explanation:

If 72 is only 60% of the total marks, then to find the total number of marks we will need to multiply 72 by 60% to find the remaining marks, then add that back to 72.

72 × 0.6 = 43.2 remaining marks.

72 + 43.2 = 115.2 total marks.

The total number of marks in the test ​ is 115.2 total marks.

What is the unitary method?

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

We have been given that paul got 72 marks in a maths test. 72 marks is 60% of the total number of marks.

When 72 is only 60% of the total marks, then to find the total number of marks.

We will need to multiply 72 by 60% to find the remaining marks, then add that back to 72.

Then, 72 × 0.6 = 43.2 remaining marks.

72 + 43.2 = 115.2 total marks.

Hence, The total number of marks in the test ​ is 115.2 total marks.

Learn more about the unitary method;

https://brainly.com/question/23423168

#SPJ2

asap help pls i need help

Answers

Go with a because that’s the right answer

. 5, 10, 20, 40.....​

Answers

Answer:

80, 160, 320, 640....

Step-by-step explanation:

multiply each number by 2

80 160 and so forth, you have to continue to multiply by 2

2y =x
Pls help, im taking a test, pls answer quick! Thx!

Answers

1/2
is the answer because Graph the line using the slope and y-intercept, or two points.

1
2
y-intercept:
(
0
,
0
)

3y + 7 = x is this a direct proportion

Answers

Answer:

no

Step-by-step explanation:

if the ratio (yx) of two variables (x and y) is equal to a constant (k=yx) .in this case y is said to be directly proportional to x with proportionality constant k

What are the zeros of the function h(x)=2x2+x−15
?

A
x=−3andx=−52
B
x=−3andx=52
C
x=−52andx=3
D
x=52andx=3

Answers

the correct answer is B x=-3 and x= positive 5/2

If angle 2 = 117°, find angle 8

Answers

Answer:

180- 117 = 63

Step-by-step explanation:

Sam put a 12-inch ruler into a cup. If 3 inches of the ruler were sticking out of the top of the cup, how deep was the cup?

Answers

Answer:

9 inches deep

Step-by-step explanation:

12 inches - 3 inches = 9 inches

HURRY
What is the name of the figure?
triangular prism
O triangular pyramid
O rectangular prism
O rectangular pyramid

Answers

Answer:

rectangular pyramid

Step-by-step explanation:

I don’t get this help thx

Answers

6.5693%
I’m not sure what you need to round this up to but this is the furthest I got with it. :)
6.6 I believe good luck

I am building birdhouses for all of my students for an upcoming project. If I complete 2 1/2 birdhouses in 2/3 of an hour of workwhat is my unit rate of birdhouses per bour?

Answers

Answer:

3 3/4

Step-by-step explanation:

convert to decimal

2.50/0.666

=3.75

hii please help i’ll give brainliest

Answers

Answer:

X>3

Step-by-step explanation:

n is less than or equal to 13

Answers

Answer:

n ≤ 13

Step-by-step explanation:

≤ is a symbol used to show less than or equal to. Since n is less than or equal to 13, you will put it like n ≤ 13.

Hopes this helps:

Answer:

Let x be the number. If x is no less than 13, the x can be greater than 13 or equal to 13. Combine these two conditions and get x >13.

What is 4 times 2 please I’m in need of an answer

Answers

8 is the answer to your question

Answer:

8 should be the answer.

Step-by-step explanation:

4 × 2 = 8

4.6 isosceles and Equilateral triangles

Answers

Answer:

Step-by-step explanation:

5555

The red arcs mean those angles are the same.

When two angles are the same the corresponding sides are also the same.

5. X = 8

6. X = 11

7. 2x-16 = 8

Add 16 to both sides:

2x = 24

Divide both sides by 2:

X = 12

8. X + 19 = 8

Subtract 19 from both sides:

X = -11

Help ASAP! Question in pic! Will give brainliest!!

Answers

Answer:

Its the third option

Write the equation of the line in fully simplified slope-intercept form?​

Answers

Answer:

ok

Step-by-step explanation:

Answer:

y=-1/2x-1

Step-by-step explanation:

Henry drives at a speed of 80miles per hour how long will it take to drive 400miles

Answers

5 hours. hope this helps
5.5 hours
Step-by-step explanation:

Help with this pls HELPP ME PLSSSS

Answers

Answer:

Slope = 2

Step-by-step explanation:

Rise = 2

Run = 1

Rise/Run = 2/1 = 2

. A dice is thrown once. Find the probability of getting (i) An even number (ii) a number greater than 6​

Answers

Answer: (i) 1/2 (ii) 0

Explanation:

(i) 1, 2, 3, 4, 5, 6 (numbers on a dice)
2, 4, 6 (even numbers on a dice)
3/6 is the probability of rolling an even number
3/6 = 1/2
1/2 is the probability of rolling an even number
(ii) there is no number greater than 6 on a dice

HELP ME PLZ ILL MARK YOU BRAINLIEST!!! Find the answers to the following multiplication problems without using a calculator, Reduce
the product to their lowest terms and change improper fractions to mixed numbers,
4/16 x 5/8

Answers

Answer:

Ok I gotchu!

5/16 I think-

Step-by-step explanation:

Help ASAP! Use the graph to answer the question

Answers

Answer:second 1

Step-by-step explanation:

Answer:

The blue line models the data points better than the red line. It is because the data points are all close to the line.

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