MATHEMATICS MIDDLE SCHOOL

Which statement is not always true?A.The sum of a rational number and an irrational number is irrational.
B.The sum of two rational numbers is rational.
C.The product of two irrational numbers is irrational.
D.The product of two rational numbers is rational.

Answers

Answer 1
Answer: C) this isn't always true
If the irrational parts of the question can add together to make 0 and cancel each other out you will be left with a rational number
Answer 2
Answer: C.The product of two irrational numbers is irrational.

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Which situation can be represented by the inequality 4x − 25 < 125?

Unit rate for 240 kilometers and 2.5 hours show your work

Answers

To find the unit rate, you have to divide 240 by 2.5.
240/2.5 = 96
The answer is = 96 kilometers per hour.

A box contains 100 colored chips; some are violet and some are red. Wilson chooses a chip at random, records the color, and places it back in the bag. Wilson has recorded 9 violet chips and 16 red chips. Using these results, what is the predicted number of violet chips in the box?11
25
36
75

Answers

The predicted number of violet chips in the box is 36

What Do you mean by Probability ?

Probability is a stream in maths which is useful in prediction of likeliness of an event to happen.

It has a range of 0 to 1, where 0 means unlikeliness and 1 indicates certainty.

Probability Formula = f/n

where,

f is the number of times an event occurs

n is the total number of trials

It is given in the question that

A box contains 100 colored chips

Wilson records 9 violet chips and 16 red ones.

So from a sample of 25 chips, 9 are violet.

So violet probability of violet chips out of 25 = 9/25.

To find the number of violet chips in the box

a proportion has to be made

9/25 = v/ 100

v= 36

Therefore the predicted number of violet chips in the box is 36

To know more about Probability

brainly.com/question/11234923

#SPJ2

Answer: 36

Step-by-step explanation:

Wilson records 9 violet chips and 16 red ones.

So from a sample of 25 chips, 9 are violet.

So violet probability out of 25 = 9/25.

If we make a proportion we find how many violet chips out of 100 = 36

9/25 = ?/ 100

?= 36

Why is 0.000 002 the same as 2 out of a million

Answers

we can always convert a decimal to a fraction, by simply adding as many zeros at the bottom as there are deciamals, and lose the dot atop.

so with that mouthful, let's convert 0.000002 to a fraction.  It has 6 decimals, so we'll use 6 zeros.


\bf 0.\underline{000002}\implies \cfrac{0000002}{1\underline{000000}}\implies \stackrel{\textit{two millionths}}{\cfrac{2}{1,000,000}}\impliedby \textit{2 out of 1,000,000}

What is the answer to this math question?

Answers

pi is the quotient of the circumference and the diameter of a circle

the state of Florida has a total area of 58560 square miles, ofnwhich 4308 square miles are covers by water. what equation can you not use to find p, the percent of area of florida that is covered by water?

Answers

p = ( 4308 / 58560) * 100 = 7.35 => p% = 7.35%
p=(4308/58560)*100=7.35=>p%=

This table shows a linear relationship. x 3 4 5 6 7 y 14 18 22 26 30 Based on the information in this table, which equation can be used to model the relationship between x and y? Responses y = 4x + 2 y, = 4, x, + 2 y = 2x + 4 y, = 2, x, + 4 y = 4x y, = 4, x y = 2x

Answers

Answer:

Step-by-step explanation:

y = mx + b

Where:

y is the dependent variable (in this case, the values in the "y" column).

x is the independent variable (in this case, the values in the "x" column).

m is the slope of the line.

b is the y-intercept (the value of y when x is 0).

We can calculate the slope (m) using two points from the table. Let's use the points (3, 14) and (7, 30):

m = (y2 - y1) / (x2 - x1)

m = (30 - 14) / (7 - 3)

m = 16 / 4

m = 4

Now that we have found the slope (m), we can determine the equation:

y = 4x + b

To find the y-intercept (b), we can use one of the points from the table. Let's use the point (3, 14):

14 = 4(3) + b

14 = 12 + b

Now, solve for b:

b = 14 - 12

b = 2

So, the equation that models the relationship between x and y in the table is:

y = 4x + 2

Therefore, the correct equation is: y = 4x + 2.
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