Answers
Answer:
B
Step-by-step explanation:
A rational number can be expressed in the form
[tex]\frac{a}{b}[/tex] ← where a and b are integers
From the set
3 is rational as it can be expressed as [tex]\frac{3}{1}[/tex]
and [tex]\sqrt{9}[/tex] = 3 ← rational
[tex]\sqrt{2}[/tex], [tex]\sqrt{3}[/tex] and [tex]\sqrt{7}[/tex] ← are irrational numbers
Thus there are 2 rational numbers out of the 5 given, thus
P( rational ) = [tex]\frac{2}{5}[/tex] → B
Related Questions
The area of a square is 117 square meters which best represents the length of a side.
Answers
The best representation for the length of a side of the square is 10.82 meters.
Given that the area of the square is 117 square meters.
Let's denote the length of the side of the square as "s."
The formula for area of square
= s²
Substituting the value of area of square 117 square meter back to the formula
117 = s²
Take the square root of both sides:
s = √(117)
s ≈ 10.82 meters
So, the length of a side of the square is 10.82 meters.
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Ralph’s current annual income is $32,000. Using the graph shown below, Ralph has calculated that he will have to pay a total of $9,280 in federal taxes this year. Which of the following statements is true?
Answers
Answer:
c
Step-by-step explanation:
Ralph’s calculation is too high, as his calculation includes state taxes option (b) is correct.
What is a fraction?Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
It is given that:
Ralph’s current annual income is $32,000.
Total of $9,280 in federal taxes this year.
32000(0.24) = x
7680 = x
Thus, Ralph’s calculation is too high, as his calculation includes state taxes option (b) is correct.
a.
Ralph’s calculation is too high, he has only calculated state taxes.
b.
Ralph’s calculation is too high, his calculation includes state taxes.
c.
Ralph’s calculation is correct, he will have to pay $9,280 in federal taxes this year.
d.
Ralph’s calculation is too low, he did not include medical care in his calculation.What is gross pay.
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Evaluate the expression when a= - 7 and y= 2 a-2y
Answers
Answer:
j=7
Step-by-step explanation:
What is the mid point of (0,-4) and (2,-1)
Answers
Answer:
[tex](1,\frac{-5}{2} )[/tex]
Step-by-step explanation:
Midpoint Formula: [tex](\frac{x_1+x_2}{2},\frac{y_1+y_2}{2} )[/tex]
Simply plug in your coordinates into the midpoint formula to find the midpoint:
[tex](\frac{0+2}{2},\frac{-4-1}{2} )[/tex]
[tex](\frac{2}{2},\frac{-5}{2} )[/tex]
[tex](1,\frac{-5}{2} )[/tex]
Determine whether the dilation from Figure ABC to Figure A'B'C' is a reduction or enlargement Then find its scale factor.
Answers
Answer:
This dilation from Figure ABC to Figure A'B'C' is a reduction, with a scale factor of 1/3.
Step-by-step explanation:
The points for Figure ABC are
A =(3,3)
B =(6,3)
C =(6,-3)
The points of Figure A'B'C' are
A' =(1,1)
B' =(2,1)
C' =(2,-1)
To get from (3,3) to (1,1) we have to multiply by 1/3, (6,3) to (2,1) multiply by 1/3, and so on.
How can you write and solve equations and inequalities.
Answers
Answer:
1.) You my add any positive or negative number to both sides of an inequality.
2.) You may multiply or divided both sides of an inequality by any positive number.
Step-by-step explanation:
*Hope this helped*
The procedure is summarized in three steps: 1) Write expressions, 2) Simplify/reduce expressions, 3) Solve for each variable.
The procedure of Writing and Solving Equations and Inequalities: is described below:
1) Write a number of Equations with same quantity of Variables, in order to solve the System.
2) Use Algebra properties to Simplify and Reduce the number of Expressions.
3) Solve for each reduced Expression.
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Need help>>> If 1 inch = 2.54 cm, how many centimeters of fabric will a seamstress need for a 40 inch shawl?
Answers
Answer:
A seamstress will need 101.6 centimeters of fabric
Step-by-step explanation:
40 x 2.54 = 101.6
-p(51+z)=dz+84
how do i solve for z
Answers
Answer:
Z=53p/d-84/d
Step-by-step explanation:
hope it help's
What is the value of y ?
Answers
Answer:
y = 80
The opposite angle of y is 80.
Determine the mean of the following set of numbers:
40, 61, 95, 79, 9, 50, 80, 63, 109, 42
Answers
Answer:
the mean is 62.8
Step-by-step explanation:
40 + 61 + 95 + 79 + 9 + 50 + 80 + 63 + 109 + 42 = 628
628 / 10 = 62.8
1.
Which of the following is a conjecture?
Why is it so dark in here?
А
He is never going to get here.
B
Straight ahead.
That bridge over there.
D
Answers
/kənˈjekCHər/
noun
an opinion or conclusion formed on the basis of incomplete information.
The answer is B.
“He is never going to get here” is non factual. A is a question and D and C Are directions, therefore leaving B to be your answer.
If Ben ran 6 miles a day for twenty-eight days, how many total miles did he
run?
Answers
All we need to do is multiply.
6 miles * 28 days = 168 total miles ran in 28 days.
Therefore, the answer is 168 miles
Best of Luck!
find the indicated length
Answers
Answer:
ion know
Step-by-step explanation:
Reptile sticker come in sheets of 6 and fish stickers come in sheets of 9. Antonio buys the same number of both types of stickers and he buys at least 100 of each type. What is the least number of sheets of each type he might buy?
Answers
Answer:
he ill buy 0.06 reptile stickers and 0.09 fish sticker sheets
Step-by-step explanation:
Gracie can iron 3 shirts in 13 minutes. At this rate, how long will it take her to iron 10 shirts? Which proportion shows how to solve the problem?
Answers
Answer:
43 1/3 minutes to iron 10 shirts
Step-by-step explanation:
Number of shirts : Time taken
3 shirts : 13 minutes
10 shirts : x minutes
3 / 13 = 10 / x
Cross product
3 * x = 13 * 10
3x = 130
Divide both sides by 3
3x / 3 = 130 / 3
x = 43 1/3 minutes
x = 43 minutes 20 seconds
It will take 43 minutes 20 seconds to iron 10 shirts
maria brought a blouse on sale for 20% off. the sale price was $21.76. what was the original price? round to the nearest hundredth.
Answers
Answer: $27.20
Step-by-step explanation:
She bought a blouse for 20% off so it means that she paid 80% of the original price.We can then set up the equation
80% of x = 21.76 where x is the original price so solve for x
0.8x = 21.76
x = 27.20
Which means the original price is $27.20
Consider the segment AB with A positioned at (6,2). The midpoint of AB, M is located at (5, -3). What are the coordinates of point B? * O (7,7) O (4,-8) O (5.5, -0.5) O (4,5)
Answers
Answer:
I didn't "do the math" yet at all, but draw it out on an X,Y axis... Thinking about it logically... If point A is in the upper right quadrant of the axis, because both X and Y coordinates are positive numbers, so you go right on the horizontal axis and up on the vertical axis... Then the midpoint is in the lower right quadrant of the due to the X coordinate being a positive, thus you go right on the horizontal axis, but the Y coordinate is a negative, so you go down vertically... So point B cannot be above both the midpoint or point A, ruling out (7,7) and (4,5) as both Y coordinates of those answers (7 or 5) are higher than point A's Y coordinate of 2... B would have to be below point A because the midpoint is below point A with a Y coordinate of -3... So this leaves either option (5,-0.5) or option (4,-8)... However.... While (5,-0.5) has a lower Y coordinate than point A with -0.5, its Y coordinate is above the Y coordinate of the midpoint as well, since -0.5 is above -3... So this doesn't jive as point B cannot be between point A and the midpoint to point B... This logically leaves (4,-8) left to be the answer... And if you drew on an X,Y axis the coordinates (6,2) as well as (5,-3) and (4,-8), then connect the dots, you'd find (5,-3) sits about half ways between (6,2) and (4,-8)...
So (4,-8) is probably the answer...
The best way to come to this conclusion mathematically is finding the slope (rise over run) of point A and the midpoint between point A and point B, then continuing the slope down, etc... But this particular question with the multiple choice answers ruled all but 1 answer out...
To find the slope you take rise over run, which is the Y of the 2nd coordinate minus the Y of the 1st coordinate, divided by (or over) the X of the 2nd coordinate minus the X of the 1st coordinate....
IE: ( Y2 - Y1 ) / ( X2 - X1 ) = Rise / Run
So.... The 2nd coordinate's Y value is -3, and the 1st coordinate's Y value is 2... Subtract 2 from -3, and you get -5...
Then the 2nd coordinate's X value is 5, and the first coordinate's X value is 6... Subtract 6 from 5, and you get -1...
Divide -5 over -1, which equals the same as 5 over 1... The rise is 5, the run is 1, the slope is 5 steps vertically for every 1 step horizontally...
Or visually... ( -3 - 2 ) / ( 5 - 6 ) which is -5 / -1... Since both sides are negative, that's the same as 5 / 1... which is 5 vertical steps (rise) for every 1 horizontal step (run), or a slope of 5...
So add the slope rise of 5 to the Y coordinate of the midpoint, -3, and you get 2, which is the Y coordinate of point A... And add slope run of 1 to the midpoint X coordinate, 5, and you get 6, the X coordinate of point A... Now subtract the slope rise of 5 from the midpoint, -3, and you get -8... So that tells you that point B has to have a Y coordinate of -8.... And now subtract the slope run of 1 from the midpoint X coordinate, 5, and you get 4... The X coordinate of point B... Giving you a point B coordinate of (4,-8)...
Erite 2 • 2•2 •2• 2 • 3•3•3• 3 in exponential form?
Answers
Answer:
2^5 * 3^4
a
a
a
a
a
a
a
a
a
aa
easy 2 to the power of 6 multiplied by 3 to the power of 4
State the leading coefficient of the polynomial:
f(x) = 6x^5 + 9x^4 + 2x^3 + 3x^2 - 4x -6
Answers
Answer:
The leading coefficient of the polynomial is 5 .
Step-by-step explanation:
f(x) = 6x^5 + 9x^4 + 2x^3 + 3x^2 - 4x -6
In this polynomial , the highest exponential is the leading coefficient .
So there are 5 coefficients ,
5 , 4 , 3 , 2 , and x
so above , the highest one is 5 .
The box plots show the target heart rates of men 20-40 years olf and men 50-70 which statement is best supported by the information
Answers
What is 20-12x=8-10x
Answers
Answer: x= 6
Step-by-step explanation:
20 -12x = 8 - 10x Add 12x to both sides
+12 +12
20 = 8 + 2x subtract 8 from both sides
-8 -8
12 = 2x Divide both sides by 2
x = 6
Answer:
x=6
Step-by-step explanation:
20-12x=8-10x
Add 12x to each side
20-12x+12x=8-10x+12x
20 = 8 +2x
Subtract 8 from each side
20-8 = 8+2x-8
12 = 2x
Divide by 2
12/2 = 2x/2
6 =x
Locate the easternmost trade route, which runs from the southern tip of what is
now Florida north to the Wampanoag territory. How long, in miles, was this route?
Answers
Answer:
____________
is it 1700 miles ?
Find the value of 15-8 divided by 2
Answers
15-4=11
Step-by-step explanation:
Answer:
it’s 11 hun
You are at a rate of pay for $24.00/hour. You work a 32 hour work week. What is your gross pay?
Answers
Which is the distance between the points (-6, 2) and (8, 10)?
Answers
Answer:to find the distance between two points (x1,y1) and (x2,y2), all that you need ... What is the distance between the the points (0,0) and (6,8) plotted on the graph.
Step-by-step explanation:
The Distance Formula is a useful tool in finding the distance between two points which can be arbitrarily represented as points \left( {{x_1},{y_1}} \right)(x
1
,y
1
) and \left( {{x_2},{y_2}} \right)(x
2
,y
2
).
The Distance Formula itself is actually derived from the Pythagorean Theorem which is {a^2} + {b^2} = {c^2}a
2
+b
2
=c
2
where cc is the longest side of a right triangle (also known as the hypotenuse) and aa and bb are the other shorter sides (known as the legs of a right triangle).
On Wednesday, I bought 8 more pieces of candy. By sunday, half of the candy was taken by my sister and there were 22 pieces left. How many pieces of candy did I start with?
Answers
Answer:
52
Step-by-step explanation:
22 times 2 plus 8 is 52
4x-2(x+3)=5(x-3) do y’all know the answer ?
Answers
x=3!!!!!!!!!!!!!!!!!
Example 2 - A rectangle, whose perimeter is two hundred eight feet, has a width that is six feet
shorter than its length. What is the length and width of the rectangle?
Answers
Answer:
L=55 ft, W=49 ft
Step-by-step explanation:
W=L-6
perimeter= 2L+2W
208=2(L-6)+2L
L=55
W=55-6
=49
what is bigger 5.6% or square root of 27
Answers
square root of 27 is bigger.
What is percentage ?
In math, one percent is equal to a hundredth part; thus, 100 percent represents the entire amount and 200 percent specifies twice that amount
First calculating square root of 27 :
[tex]\sqrt{27}=5.196[/tex]
and 5.6 % is 0.056
clearly [tex]\sqrt{27}[/tex] is greater than 5.6%
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Please solve these problems. 2(2x-1)=3(x-6) and 4(5-7b)-4=-3(1+3b) I will pick Brainliest, and award 15 points. (They are separate problems tho)
Answers
Answer:
see explanation
Step-by-step explanation:
Given
2(2x - 1) = 3(x - 6) ← distribute parenthesis on both sides
4x - 2 = 3x - 18 ( subtract 3x from both sides )
x - 2 = - 18 ( add 2 to both sides )
x = - 16
-------------------------------------------------------------------
Given
4(5 - 7b)- 4 = - 3(1 + 3b) ← distribute parenthesis on both sides )
20 - 28b - 4 = - 3 - 9b , that is
16 - 28b = - 3 - 9b ( add 9b to both sides )
16 - 19b = - 3 ( subtract 16 from both sides )
- 19b = - 19 ( divide both sides by - 19 )
b = 1
Answer:
[tex]\sf 1) \ \ \ \ \huge\boxed{\sf x = - 16}[/tex]
[tex]\sf 2) \ \ \ \ \huge\boxed{\sf b = 1}[/tex]
Step-by-step explanation:
[tex]\sf 1) \ 2(2x-1) = 3(x-6)\\\\Resolving \ Parenthesis\\\\4x - 2 = 3x -18\\\\Combining \ like \ terms\\\\4x-3x = -18+2\\\\x = -16[/tex]
[tex]\rule[225]{225}{2}[/tex]
[tex]\sf 2) \ 4(5-7b) - 4 = -3(1+3b)\\\\Resolving\ Parenthesis\\\\20 - 28b-4 = -3-9b\\\\16 - 28b = -3-9b\\\\Combining \ like \ terms\\\\16+3 = -9b + 28b\\\\19 = 19b\\\\Dividing \ both \ sides \ by \ 19\\\\1 = b \\\\OR\\\\b = 1[/tex]
[tex]\rule[225]{225}{2}[/tex]