is 2.7 a rational or a irrational
Answer:
Rational
Step-by-step explanation:
2.7 can be written as a fraction, so therefore it is ration[tex]2.7=2\frac{7}{10} =\frac{27}{10}[/tex]al.
The number 2.7 is a rational number.
A rational number is a number that can be expressed as a ratio of two integers, where the denominator is not zero.
In other words, a rational number can be written in the form p/q, where p and q are integers, and q is not equal to zero.
Now, let's express 2.7 as a fraction:
2.7 = 27/10
Since 27 and 10 are both integers, and the denominator (10) is not zero, we have successfully expressed 2.7 as a fraction of two integers.
Therefore, 2.7 is a rational number.
On the other hand, an irrational number cannot be expressed as a simple fraction of two integers. Examples of irrational numbers include π (pi) and √2 (the square root of 2).
These numbers have non-repeating and non-terminating decimal expansions, and they cannot be written as a fraction of two integers.
However, 2.7 is a terminating decimal (it has a finite number of decimal places), and it can be expressed as a fraction, making it a rational number.
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how do you solve this question
Answer:
y÷234
Step-by-step explanation:
3×81x=234
234x=9x+y
234x-9x=y
x=y÷234
Find a cubic function with the given zeros. (1 point) Square root of seven. , - Square root of seven. , -4
Given :
Three roots , [tex]\sqrt{7},\ -\sqrt{7},\ -4[/tex] .
To Find :
A cubic function with the given zeros.
Solution :
Equation of polynomial of 3 zeroes is given by :
[tex](x-a_1)(x-a_2)(x-a_3)=0\\\\(x-\sqrt{7})(x+\sqrt{7})(x+4)=0\\\\( x^2-7)(x+4)=0\\\\x^3+4x^2-7x-28=0[/tex]
Therefore, the cubic function of given zeroes is [tex]x^3+4x^2-7x-28=0[/tex].
Hence, this is the required solution.
What are the single digit prime numbers
Answer:
The only single-digit prime numbers are: 2, 3, 5, and 7.
Answer:
2, 3, 5, 7
Step-by-step explanation:
1) Prime numbers are numbers that can only be multiplied by themselves and one; therefore, they only have two factors.
Hope this helps!
PLEASE HELP ASAP! I’m not good with angle stuff.
Answer:
QP and QR.
Step-by-step explanation:
Q is the common origin of the 2 rays.
What is the sum of 4 + (-6)?
Answer:
-2
Step-by-step explanation:
Answer:
-2
Step-by-step explanation:
4+(-6)
4-6
-2
Solve
5x - 4 = 3x + 12.
Answer:
x=8
Step-by-step explanation:
5x-4=3x+12
-3x. -3×
2x-4=12
+4. +4
2×=16
÷2. ÷2
x=8
Express the statement: y is not greater than -2 as an inequality.
how do I get AB? Please solve and explain ❤️
Answer:
The question is asking you to measure it, so I'm assuming you would do so with a ruler and get the exact measurement in centimetres.
6.50X+9.00(10-x)=8(10)
Solve
Answer:
Brainliest PLS
x=4
Step-by-step explanation:
Let's solve your equation step-by-step.
6.5x+9(10−x)=(8)(10)
A submarine 625 feet below sea level ascends (rises up) 575 feet before descending (submerging down) another 455 feet. Describe the final location of the submarine. Could anybody help me plz.
Answer:
505ft below the surface
Step-by-step explanation:
subtract 575 from 625 and then add 455 to get your final answer.
If rain is falling at 0.5 inches per hour and 1.5 inches have already accumulated, how many hours must have passed if there are 5 inches of rain? Create a linear equation that is a model for the rain that has accumulated. Select the two correct answers. (1 point)
Given :
Rain is falling at 0.5 inches per hour and 1.5 inches have already accumulated.
To Find :
How many hours must have passed if there are 5 inches of rain .
Solution :
Let , after x hours rain accumulated is 5 inches .
We know , general equation of line :
y = mx +c
Here , m = 0.5 and c = 1 .
So , equation of rain accumulated is :
[tex]y=0.5x+1[/tex]
Now , putting value of x = 5 hours .
We get :
[tex]y=0.5\times 5+1\\\\y=2.5+1=3.5\ inches[/tex]
Hence , this is the required solution .
Answer:
0.5h+1.5=5
1.5h+0.5=5
Compare your response to the sample response above. What did you include in your explanation? a reference to the horizontal-line test a statement that the function is one-to-one the conclusion that the inverse is a function
Answer:
all of the answers are correct
Step-by-step explanation:
i took the test and got a hundred! it's a trick question
The statements included in the explanation on the horizontal line test are follows as a reference to the horizontal-line test, a statement that the function is one-to-one. and inverse is a function.
What is the horizontal-line test?The horizontal line test is used to not only find out if a graph has an inverse function, but also if that inverse is also a function itself.
In order to pass the horizontal line test, the function has to be one-to-one which means that a horizontal line can intersect the graphed function at one point in all places.
If this happens, then there is an inverse and the inverse itself is a function.
Find out more on the horizontal line test at
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The complete question is
If the graph passes the horizontal-line test, then the function is one-to-one. Functions that are one-to-one have inverses that are also functions. Therefore, the inverse is a function. Compare your response to the sample response above.
Y = 120,000(1.1)^t
Is it growth or decay?
Answer:
growth
Step-by-step explanation:
The base of the positive exponent is 1.1, a value greater than 1. When the growth factor is greater than 1, it is a growth function.
__
It is a decay function when the growth factor is less than 1.
Please help me
-
-
-
Thanks by the way!!
Answer:
m=3
Step-by-step explanation:
subtract the e from both sides so you now have 15=5m divide each by 5 and you get 3=m
Answer:
m = 3
Step-by-step explanation:
-5m + 18 = 3
-5m = 3 - 18
-5m / -15 = 3
Answer: m = 3
Hope this helped
Brainliest is aprreciated.
4. Explain how to graph the equation y = -2x + 3 *
Answer:
Step-by-step explanation:
Easy way: type the equation into a graphing calculator.
__
By hand: find a couple of points and draw a line through them.
The equation is in "slope-intercept" form:
y = mx + b
where m is the slope (-2) and b is the y-intercept (3). The y-intercept is where the line crosses the y-axis, so right away you know one point on the line. That point is (0, 3).
The slope of -2 means for each horizontal unit, the line drops 2 units vertically. The point 1 unit to the right of (0, 3) is (1, 3); and the point 2 units below that is (1, 3-2) = (1, 1). So, another point on the line is (1, 1).
You can plot those two points and draw the line through them.
f(x) = 12x - 3x + 12
Find f(10x - 5)
Answer:
244,140,634
Step-by-step explanation:
- 5 1 / 3 divided by 2 3 / 4
Answer:-1.93939393939
Step-by-step explanation:
Look at the photo and answer questions *25 POINTS*
Answer:
The answer would be 4.2
Step-by-step explanation:
First add the 8 and 0
Find the values of x and y.
Twenty of the 25 students in Mrs. Thigpen’s class are we wearing sneakers. What is the fraction in simplest form?
Answer:
4/5
Step-by-step explanation:
20/25 = 4/5
Answer: free points
Step-by-step explanation:
3 ( x - 2 ) + 5 x = 18
Answer:
3 is correct answer
Step-by-step explanation:
[tex]3(x - 2) + 5x = 18 \\ 3x - 6 + 5x = 18 \\ 8x - 6 = 18 \\ 8x = 18 + 6 \\ 8x = 24 \\ x = \frac{24}{8} \\ x = 3[/tex]
hope it helped you:)
Answer:
x=3
Step-by-step explanation:
3x-6+5x=18
add the same terms to both sides
8x-6=18
add the term again
8x-6+6=18+6
simpfly
8x=24
8x/8 24/8
x=3
12 1 2 is a rational number, but – 4 is not a rational number. agree or disagree
Answer:agree
Step-by-step explanation:
Find the value of x if PQ = x^2 + 3, QR = 4 + 2x, and PR = 15 if Q is between P and R.
Answer:
x=2
Step-by-step explanation:
PQ+QR=PR
=x^2+3+4+2x=15
=x^2+2x+7=15
=x^2+2x+7-15=0
=x^2+2x-8=0. (quadratic equation)
=(x+4)(x-2)=0. (factorise)
=x+4=0 or x-2=0
x=-4 or 2
we take x to be the positive value which is
x=2
A natural number is ____
a rational number
HELPPP ??!!!!
Answer:
A natural number is a rational number.
Step-by-step explanation:
Rational number include all natural numbers, whole numbers, and integers.
So, a natural number would be a rational number. It also a whole number and a integer.
Hope this helps.
if a car travels 45 miles in 30 minutes how far will the car travel in 2.5 hours
Answer:
225
Step-by-step explanation:
well divide 45 by 30 to get miles per min. = 1.5
and theirs 150 min in 2 1/2 hours
so now multiply 150 by 1.5 = 225
Help!I need a pretty quick answer!Please helppp
Answer:
Pam's house to the restaurant: 5 units
Pam's house to Jean's house: 2 units
Jean's house to the school: 6 units
Step-by-step explanation:
The distance formula is: d=√((x_2 - x_1)²+ (y_2 - y_1)²)
So, plug the coordinates into the formula for each problem:
Pam's house to restaurant:
d=√((4 +1)²+ (-2 +2)²)
d=√(5²+ 0²)
d=√(25)
d=5
Pam's house to Jean's house:
d=√((-3 +1)²+ (-2 +2)²)
d=√(-2²+ 0²)
d=√(4)
d=2
Jean's house to the restaurant:
d=√((-3 +3)²+ (4+2)²)
d=√(0²+ 6²)
d=√(36)
d=6
So:
Pam's house to the restaurant: 5 units
Pam's house to Jean's house: 2 units
Jean's house to the school: 6 units
Hope this helps!
Which function has an inverse that is a function?
b(x)=x^2+3
d(x)=-9
m(x)=-7x
p(x)= |x|
m<QPS=88° m<RPS=5x+34° m<QPR=8x+15° find m<RPS
Answer:49
Step-by-step explanation:
The sum of three consecutive numbers is eighty-four. Create the equation you would use to solve this problem using x as the variable for the first of the three consecutive numbers. (Do not use spaces)
Answer:
27,28,29
Step-by-step explanation:
x+x+1+x+2 =84
3x +3 =84
3x=84-3
3x=81
x=81 :3
x=27 (the first number
27 +1=28 (the second number
27 +2 =29 (the third number