======================================================
Explanation:
A counter-example could be something like 2/3 which is rational, but not an integer since 2/3 = 0.67 has a fractional or decimal portion to it. An integer is one where its a positive or negative whole number. Zero is also an integer.
Any rational number is a ratio or fraction of two integers. Zero is not allowed in the denominator. Any integer is a rational number since x = x/1, where x is any integer. For example, 9 = 9/1.
Answer:
False
Step-by-step explanation:
Rational numbers include all integers, fractions, or terminating and repeating decimals.
If f(x) = (x^2-1)/(2x+3) then f(-4) =
a. -3
b. -(17/11)
c. -(17/5)
d. 15/11
e. 5/2
Answer:
b
Step-by-step explanation:
-4 squared = -16 -1 = -17
2(-4)= -8+3=11
thus giving you -(17/5)
Many states assess the skills of their students in various grades. One of the tests provided by a national association assesses the reading skills of 12th-grade students. In a recent year, the national mean score was 286 and the standard deviation was 38. Assuming that these scores are approximately Normally distributed, N(286, 38), use the 68-95-99.7 rule to give a range of scores that includes 95% of these students.
Answer:
95% of these scores are between 210 and 362.
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
68% of the measures are within 1 standard deviation of the mean.
95% of the measures are within 2 standard deviation of the mean.
99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Mean = 286, Standard deviation = 38
Use the 68-95-99.7 rule to give a range of scores that includes 95% of these students.
This is within 2 standard deviations of the mean. So
286 - 2*38 = 286 - 76 = 210
286 + 2*38 = 286 + 76 = 362
95% of these scores are between 210 and 362.
PLEASE HELP ME I HAVE A HOUR
Complete the table with the outputs that go with a given input.
Reminder that the tenths place is the digit to the right of
the decimal. 3/4 = 0.75. The 7 is in the tenths place so
name the
we put 7 as the output.
7
input
output
*
digit in the
tenths place
를
2.35
42
1
16
Answer:
If they don't have a decimal, the output will be zero.
Input = output
3/4 = 0.75 = 7
2.35 = 3
42.00 = 0
1.00 = 0
16.00 = 0
is 369/100 greater than 849/100
9514 1404 393
Answer:
no
Step-by-step explanation:
When fractions have the same denominator, you can compare the numerators.
369 < 849
369/100 is not greater than 849/100
__
Here, you can convert these to decimal numbers and do the comparison in the usual way:
3.69 < 8.49
The most-significant digits are in the same number place (units), and they are different. The number with the smaller most-significant digit is smaller.
Answer:
no
Step-by-step explanation:
369/100=3.69
849/100=8.49
3.69<8.49
Please help....................
Answer:
B = 31°
a = 18.9
b = 11.3
Step-by-step explanation:
✔️B = 180° - (90° + 59°) (sum of triangle)
B = 31°
✔️Use trigonometric ratio to find a:
Reference angle = 59°
Side opposite to reference angle = a
Hypotenuse = 22
Thus,
Sin 59 = a/22
Multiply both sides by 22
22*sin 59 = a
18.9 = a
a = 18.9 (nearest tenth)
✔️Use trigonometric ratio to find a:
Reference angle = B = 31°
Side opposite to reference angle = b
Hypotenuse = 22
Thus,
Sin 31 = b/22
Multiply both sides by 22
22*sin 31 = b
11.3 = b
b = 11.3 (nearest tenth)
Which row of the table reveals the y-intercept of function ? X f(x) 2 -1 0 2 1 0 2 ch -6 3 -24
Answer:
2, -1
Step-by-step explanation: Got it right on Edge
The row of the table of the y-intercept of the function is f ( 2 ) = -6
What is a function rule?The function rule is the relationship between the input or domain and the output or range. A relation is a function if and only if there exists one value in the range for every domain value.
A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.
Given data ,
Let the function be represented as A
Now , the value of A is
f ( -1 ) = 2^2/3
f ( 0 ) = 2
f ( 1 ) = 0
f ( 2 ) = -6
f ( 3 ) = -24
Hence , the function is f ( 2 ) = -6
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The image is triangle ABC Clara says the two triangles are congruent because their angle measures are the same to you agree explain how you know
Answer:
Step-by-step explanation:
The are similar. That means that one could have its sides measured in miles and the other measured in a few inches. All three angles could be equal, but they are not congruent.
You need at least one properly placed side to make them congruent.
A relay race covers a distance of 21/2 miles. Each runner on the team will run 1/4 miles how many runner needed for the team to cover the distances
Answer: 10
Step-by-step explanation:
Each mile has 4 quarter miles.
2.5 miles are covered.
4×2.5=10
Note: The square is not drawn to scale.
What is the area of the square above?
Answer:
where is the square at I cannot see it
HELP ME WALLAHI HELP HELP PLS
Answer:
15
Step-by-step explanation:
Answer:
b=1.5*10^1
Step-by-step explanation:
a^2+b^2=c^2
a=20
b=?
c=25
a=4*10^2
c=6.25*10^2
a-c=2.25*10^2
b^2=2.25*10^2
take the square root if it requires it.
b=1.5*10^1
Which expression correctly represents "nine less than the quotient of a number and four, increased by three"?
Answer:
x/4-9+3
Step-by-step explanation:
Enter the decimal represented by the shaded square.
Two mechanics worked on a car. The first mechanic charged $115 per hour, and the second mechanic charged $50 per hour. The mechanics worked for a combined total of 25 hours, and together they charged a total of $2,550. How long did each mechanic work?
How to get 6/9 as a decimal using division help
Find the perimeter and area of a rectangle with the following length and breadth:
i. L = 10.5m, B = 5.5m
ii. L = 15cm B = 6.8cm
Answer:
perimeter: 2(l+b) , area : multiply by breadth
Step-by-step explanation:
perimeter: 2(10.5+5.5)
:206.5m ans
area: 10.5multiply bye 5.5
:57.75m ans
2: perimeter: 2(15+6.8)
: 36.8cm ans
area : 15 multiply by 6.8
: 102cm ans
How can you use ratios and rates to solve problems? Compare ratios and rates by finding equivalent ratios and rates with a common_________ Make predictions by finding a _________and multiplying by it.
Answer:
Second term
Common factor
Step-by-step explanation:
How can you use ratios and rates to solve problems? Compare ratios and rates by finding equivalent ratios and rates with a common second term. Make predictions by finding a common factor and multiplying by it.
The length of a rectangle is 4 cm less than 3 times its width. If the width is x cm, then the length is
Answer:
Length: 3w-4
Step-by-step explanation:
Length: 3w-4
Width: W
*You don't have to, but I am currently trying to reach the next level, and all I need is some more brainliest answers. If you think my answer was brainly enough, you can make my answer the brainliest, but no pressure. I just help people for fun! :) Thank you, have a great day!*
-10=-10+7m help me please thank you so much
Answer:
m=0
hope this helps!!:)
Step-by-step explanation:
Is the relationship between the 6s in 6,642 and 6,683 different in any way? Explain why or why not.
Answer:
In both numbers, we have the 6s in the thousandths digit and in the hundreths digit, so the relationship is not different in any way.
Step-by-step explanation:
Suppose we have a number of 4 digits, in the following format:
a,bcd
We have that:
a is the thousandths digit
b is the hundreths digit
c is the tenths digit
d is the unit digit
In this question:
In both numbers, we have the 6s in the thousandths digit and in the hundreths digit, so the relationship is not different in any way.
Translate and solve: 18 times r is at least 144.
(Enter your answer using interval notation.)
Answer:
18 x r =144
that would be 144 divided by 18, that would be your answer
HELP PLSSS PLSSSS WALLAH HELP
Answer:
30
Step-by-step explanation:
use the Pythagorean theorem
Answer:
30
Step-by-step explanation:
Please solve the question below 2
Answer:
C
Step-by-step explanation:
The Interquartile range determines how consistence Annie and Ellen are. The greater the IQR, the less the consistency, while the lesser the IQR, the more consistency.
The IQR for Annie is lesser than that of Ellen because the rectangular box is smaller for Annie's than that of Ellen.
Therefore, Annie is more consistent.
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Answer:
6 houses
Step-by-step explanation:
Please solve the question below 2.0
Answer:
The answer is B
Step-by-step explanation:
Just look at the picture
3x + 4y + 4 > 0
how would i solve this?
20 over 35 equals 110 over b
Answer:
[tex]b=192.5[/tex]
Step-by-step explanation:
We can set up the following proportion:
[tex]\frac{20}{35}=\frac{110}{b}[/tex].
Cross-multiply to solve for [tex]b[/tex]:
[tex]20b=110\cdot 35,\\b=\frac{110\cdot35}{20}=\fbox{$192.5$}[/tex].
what is percent increase from 5 to 8
The percentage increase from 5 to 8 is 60% .
Given,
Number increased by 5 to 8 .
Now,
Percentage increase formula = Final - Initial/Initial * 100
Now initial value is 5
Final value = 8
Substitute the values in the formula,
Percentage increase formula = 8 - 5 / 5 * 100
Percentage increase = 60%
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In sanja primary school the male students are 56 and female students are 44%. What are the total students?
Answer:
100
Step-by-step explanation:
Male students take up 100%-44% = 56% of the whole school.
Let x be the total number of students.
56/x = 56%
56/x = 56/100
x = 100
Therefore there are 100 students in total.
Anne bought a new pair of shoes. She got 20% off the regular price. If she paid $40, what was the regular price of the shoes before her discount?
The seller of a watch marked up the price by 25%, and the new price is $325.00. What was the watch’s original price before the markup?