My number has a tens digit that is 8 more than the ones digit. Zero is not one of my digits. Write the 2-digit number that match
es the clues
2 answers:
The requested number is: <u><em>91 </em></u>
<h3>Further explanation </h3>Numbers are quantities used in measurements
Numbers in mathematics can be divided into several terms
- 1. integer
numbers consist of positive, negative and 0 numbers
- 2. natural numbers
numbers consisting of positive numbers, starting with number 1
- 3. whole number
a number consists of positive numbers and zeros
- 4. prime number
numbers that can only be divided by numbers themselves and the number 1
And examples of other numbers such as imaginary numbers, real numbers, rational numbers, etc.
Integers themselves consist of
- 1. positive integers
the number to the right of the number 0 is 1,2,3 ...
- 2. negative integers
the numbers to the left of the zeros are -1, -2, -3 ...
- 3. number 0
From the above questions we can separate into several sections:
- Write the 2-digit number that matches the clues
Means the number requested consists of 2 numbers, let us suppose the tens = x and the ones = y, so the number is<em><u> </u></em><em><u>xy </u></em>
- My number has a tens digit that is 8 more than the ones digit
we can translate this sentence into the equation:
x = y + 8
So from the numbers 0 to 9 that have a difference of 8 to fill the values of x and y are
- 0 and 8
- 1 and 9
because Zero is not one of my digits, the most appropriate numbers x and y are <u>1 and 9 </u>
So the number requested is
<h3>Learn more </h3>
Express 0.000431 L answer as an integer
type of number
Classify the number as a natural, whole, integer, rational, or irrational.
Keywords: integer, digit, the tens, the ones, number
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Answer:
1, 2, 6
Step-by-step explanation:
The z score shows by how many standard deviations the raw score is above or below the mean. The z score is given by:
Given that mean (μ) = 130 texts, standard deviation (σ) = 20 texts
1) For x < 90:
From the normal distribution table, P(x < 90) = P(z < -2) = 0.0228 = 2.28%
Option 1 is correct
2) For x > 130:
From the normal distribution table, P(x > 130) = P(z > 0) = 1 - P(z < 0) = 1 - 0.5 = 50%
Option 2 is correct
3) For x > 190:
From the normal distribution table, P(x > 3) = P(z > 3) = 1 - P(z < 3) = 1 - 0.9987 = 0.0013 = 0.13%
Option 3 is incorrect
4) For x < 130:
For x > 100:
From the normal table, P(100 < x < 130) = P(-1.5 < z < 0) = P(z < 0) - P(z < 1.5) = 0.5 - 0.0668 = 0.9332 = 93.32%
Option 4 is incorrect
5) For x = 130:
Option 5 is incorrect
6) For x = 130:
Since 1.5 is between 1 and 2, option 6 is correct
Answer:
<u>Option C</u>
Step-by-step explanation:
Given 0.5≤ x ≤ 0.7
According to the range of x, we will check which option is true
Let x = 0.6
A.
If x = 0.6
∴0.6/3 > √0.6 ⇒ 0.2 > 0.77 ⇒ <u>Wrong inequality </u>
B. x³ > 1/x
If x = 0.6
∴ 0.6³ > 1/0.6 ⇒ 0.216 > 1.667 ⇒ <u>Wrong inequality </u>
<u></u>
C. √x > x³
If x = 0.6
∴ √0.6 > 0.6³ ⇒ 0.77 > 0.216 ⇒ <u>True inequality </u>
D. (x/3) > (1/x)
If x = 0.6
∴ 0.6/3 > 1/0.6 ⇒ 0.2 > 1.667 ⇒<u> Wrong inequality </u>
<u>So, The true inequality is option C</u>