π and -0.314314 are irrational numbers, ¾ and -0.3 are rational numbers but not an integer, and -15 is an integer.
π and -0.314314 are irrational numbers, which means that they cannot be expressed as a ratio of two integers. π is approximately equal to 3.14159265358979323846… and its decimal expansion goes on forever without repeating. ¾ and -0.3 are rational numbers because they can be expressed as a ratio of two integers. ¾ is not an integer because it has a fractional part between 0 and 1. -0.3 is not an integer because it has a fractional part between -1 and 0. -15 is an integer, which means that it is a whole number (positive, negative, or zero) without any fractional or decimal parts.
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The complete question is:
Match each number on the left with the correct description of the number on the right.
Answer options on the right may be used more than once.
Column A:
a. π
b. -15
c. -0.314314...
d. ¾
e. -0.3
Column B:
a. This is an integer.
b. This is a rational number, but not an integer.
c. This is an irrational number.
2. Jim makes $12 an hour and worked 47 hours this week? (remember the overtime)
Fine the volume of both shapes then add
The volume of the first and second solid shapes are 3014.4m³ and 360ft³ respectively.
How to calculate for the volume of the solid shapesThe first shape comprises of a cone and a cylinder, and the volume is derived as follows:
volume of the cone = 1/3 × 3.14 × (8m)² × 5m
volume of the cone = 1004.8m³
volume of the cylinder = 3.14 × (8m)² × 0m
volume of the cylinder = 2009.6 m³
volume of the first solid shape = 1004.8m³ + 2009.6 m³
volume of the first solid shape = 3014.4m³
The second solid shape comprises of a trianglular prism and a cuboid
volume of the trianglular prism = base area × height
base area = 1/2 × 6ft × 4ft = 12ft²
volume of the trianglular prism = 12ft² × 6ft
volume of the trianglular prism = 72ft³
volume of the cuboid = 12ft × 6ft × 4ft
volume of the cuboid = 288ft³
volume of the second solid shape = 72ft³ + 288ft³
volume of the second solid shape = 360ft³
Therefore, the volume of the first and second solid shapes are 3014.4m³ and 360ft³ respectively.
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Solve the following system of equations using the elimination method.
5x + y = 9
Answer:
x= -1/5y+9/5
Step-by-step explanation:
5x+y=9
Step 1
First you need to add -y to both sides, basically subtracting y
5x+y-y= 9-y
Step 2
Divide both sides by 5, or multiply by 1/5. You want to do this because to cancel out 5, so you multiply the reciprocal, or divide the constant.
1/5*5x=-y+9/5
Then, you will get the answer
Hope this helps, sorry if it is wrong, I am just 4th grade :(
But I am sure this is correct :)
Suppose a survey indicated that the average American spends the following number of hours per week for each activity: 54 hours for sleep, 28 hours for work, 18 hours for family care, 20 hours for personal care, and 48 hours for leisure. In constructing a circle graph, how many degrees (to the nearest tenth) of the circle should be used for the “work” segment?
Work accounts for approximately 60° of the pie chart, or 15.48% of the total 360°.
How to solveTo calculate a pie chart, first, categorize the data and calculate the total.
Each slice of the pie chart represents a numerical value and has a size proportional to the value.
The sum of all the data is equal to 360°, with the total value always being 100%.
To find the percentage for each slice of the pie chart, divide the categories by the total and convert them into percentages.
Finally, calculate the degrees using the formula (Given Data/Total value of Data) × 360°.
For example, let's say we have data on sleep, work, family care, personal care, and leisure, with a total of 168 hours.
To find the percentage for each category, we can use the following calculations:
Sleep: 54/168 x 100 = 32.14%Work: 28/168 x 100 = 15.48%Family care: 18/168 x 100 = 10.71%Personal care: 20/168 x 100 = 11.90%Leisure: 48/168 x 100 = 28.57%Therefore, work accounts for approximately 60° of the pie chart, or 15.48% of the total 360°.
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costheta =12/13, 3pi/2
QUESTION 1
\(cos\ \theta = \frac{12}{13}\\\theta = cos^{-1}\frac{12}{13} = 22.62\textdegree = 0.3948\ (\text{radians})\)
QUESTION 2
\(\frac{3\pi}{2} < \theta < 2\pi\ \text{then find}\ sin(2\theta)\)
First, the fact that we have \(sin(2\theta)\) means we have to adjust our range
\(\frac{3\pi}{2} < \theta < 2\pi\ \ \text{becomes}\ \ 3\pi < 2\theta < 4\pi\\)
\(sin\ 2\theta = \frac{3\pi}{2}\\2\theta = sin^{-1} \frac{3\pi}{2}\\2\theta = \text{error}\)
There are no solutions to inverse sin of \(\frac{3\pi}{2}\\\)
Choose the most reasonable Celsius temperature for a snowy day.
17°C 26°C -6°C
Choose the most reasonable Celsius temperature for a snowy day.
O A. 26°C
OB. 17°C
C. -6°C
The most reasonable temperature for a snowy day is given as follows:
C. -6°C
How to obtain the most reasonable temperature?Considering that it snows, the temperature is either negative or very low positive, as snow only happens on temperatures close to freezing (like 2º C) or negative.
17ºC and 26ºC are far from cold enough to generate snow, hence the most reasonable temperature for a snowy day is given as follows:
C. -6°C
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In the figure below, angle X is 35 degrees. What is the measure of angle Z?
Answer:
Z = 45 degrees
Step-by-step explanation:
the angle is still an acute angle but it is not a right angle so it must be 45 according to my calculations. plz mark brainliest
Car at a constant speed
Answer:
it will have no acceleration, and a constant velocity.
Step-by-step explanation:
Does anyone know the answer to 233x282/34+1243
Answer:
\(51\frac{579}{1277}\)
Step-by-step explanation:
\(\frac{233(282)}{34+1243}\)
\(=\frac{65706}{1277}\)
\(=51\frac{579}{1277}\)
Answer: 3175.52941176
Step-by-step explanation:
It is a repeating decimal so i cant put the whole answer.
Find u if a normal distribution has a standard deviation of 3.5 with a z-score of -0.74 for a value of 6.2
Answer:
8.79-------------------
Use the formula for z-score
z = (x - μ) / σSubstituting the given values, we get:
-0.74 = (6.2 - μ) / 3.5Solve it for mean μ:
-0.74 * 3.5 = 6.2 - μ -2.59 = 6.2 - μ μ = 6.2 - (-2.59) μ = 8.79Therefore, the mean of the normal distribution is 8.79.
Find the inverse of the function y= 2x
Answer:
\(y=\frac{1}{2}x\)
Step-by-step explanation:
To find the inverse of a function, switch the x and y values and isolate y. After switching the x and y values of \(y=2x\), we get \(x=2y\).
Now divide by 2 to isolate y:
\(y=\frac{x}{2},\\\boxed{y=\frac{1}{2}x}\)
Answer:
y = x/2
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityAlgebra I
FunctionsFunction NotationInverse FunctionsStep-by-step explanation:
Step 1: Define
Identify
y = 2x
Step 2: Solve
Swap: x = 2y[Division Property of Equality] Divide 2 on both sides: x/2 = yRewrite: y = x/2Trying to understand this, someone help pls thank you !
\(\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}\)
Actually Welcome to the concept of Lines.
We know that perpendicular lines have a inverse negative slope, such that
m1*m2 = -1
hence, m1 = -1/m2
so the perpendicular line is,
==> y-(5) = 3/2(x-(-6))
==> y+5 = 3/2(x+6)
==> y+5 = 3/2*(x) +9
=> y = 3/2(x) +9-5
==> y = 3/2*(x) + 4
hence the correct option is D.)
will give brainiest will give brainiest will give brainiest will give brainiest will give brainiest will give brainiest
Area of the given figure is 27.852 in².
What is Area?Area is defined as the total space taken up by a flat (2-D) surface or shape of an object.
In the given figure there is a square.
First let us find the area of square, which has length of side 3 in
Area of square=3²=9
Now there are two semicircles with diameter 3 in.
Radius of semicircle = 3/2=1.5 in
Area of semicircle=2πr
=2×3.142×1.5
=9.426
As there are two semicircles
2×9.426
18.852
Area of figure is 9+18.852
27.852 in²
Hence, area of the given figure is 27.852 in².
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In a survey on favorite parts of college, students were asked to choose their favorite professor (from a list of four popular professors), favorite meal in the dining hall (from a list of five popular meals), and favorite weekend activity (from a list of six popular activities). Calculate the number of different ways the survey can be filled out if students select one from each category.
Answer:
The survey can be filled out in 120 different ways.
Step-by-step explanation:
The possible options are:
One professor from a set of four.
One meal from a set of five.
One weekend activity from a set of six.
Calculate the number of different ways the survey can be filled out if students select one from each category.
The multiplication of the number of possible outcomes for each trial. So
4*5*6 = 20*6 = 120
The survey can be filled out in 120 different ways.
❗️❗️❗️Find the length of side x in simplest radical form with a rational denominator.❗️❗️❗️
Plzzz helppp meeee
Answer:
\(x=\frac{\sqrt{14} }{2}\)
Step-by-step explanation:
Notice that you are given an isosceles right-angle triangle to solve, since each of its two acute angles measures \(45^o\). Then such means that the sides opposite to these acute angles (the so called "legs" of this right angle triangle) must also be of the same length (x).
We can then use the Pythagorean theorem that relates the square of the hypotenuse to the addition of the squares of the triangles legs:
\((\sqrt{7})^2=x^2+x^2\\7=2\,x^2\\x^2=\frac{7}{2} \\x=+/-\sqrt{\frac{7}{2}} \\x=+/-\frac{\sqrt{14} }{2}\)
We use just the positive root, since we are looking for an actual length. then, the requested side is:
\(x=\frac{\sqrt{14} }{2}\)
???????help????????????
Answer:
20 divided by 5=4
Step-by-step explanation:
5x4=20. 20 divided by 5 is equal to 4. They are the same because they use the same number but just flip the sign and equation.
If this has helped please mark as brainliest
////////////////////////////
Answer:
///////////////////
Step-by-step explanation:
Find the slope (-1,9) and (5,-6)
Answer:
-5/2
Step-by-step explanation:
Find the length of RS.
Answer:
If ET is 20 then DS should be 30 which makes RS 90
Step-by-step explanation:
Hope this helps. :)
Unit 4 Lesson 13 exit ticket (please help me im getting stressed with this)
Answer:
No solutions.
Step-by-step explanation:
Steps:
I will solve your system by substitution.
y=1/4x−10;y=1/4x+1
Step: Solve y=1/4x−10 for y:
Step: Substitute 1/4x−10 for y in y=1/4x+1:
y=1/4x+1
1/4x−10=1/4x+1
1/4x−10+−1/4x=1/4x+1+−1/4x(Add (-1)/4x to both sides)
−10=1
−10+10=1+10(Add 10 to both sides)
0=11
The given system of equation of No solution.
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
We have the equations:
y= 1/4 x - 10
y = 1/4x + 1
Now, Solve y=1/4x−10 for y by Substituting 1/4x−10 for y in y=1/4x+1 we get
y=1/4x+1
1/4x−10=1/4x+1
1/4x−10+−1/4x=1/4x+1+−1/4x
−10=1
0=11
thus, the equation have No solution.
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QUESTION ON PIC BRAINLIEST THANK YOU!
Answer:
1, 3, 9, 27
Step-by-step explanation:
1 times 27 = 27
3 times 9 = 27
9 times 3 = 27
27 times 1 = 27
hope this helps!!!
Answer:
1, 3, 9, 27
Step-by-step explanation:
27 = 3³
The factors of 27 are:
1, 3, 9, 27
5 + 2
6 6
me ayudan a Aser esa suma porfavor
Answer:
271
Step-by-step explanation:
Given: ∠AOC and ∠BOC are complementary. m∠AOC=m∠BOC+30°. Find: m∠AOC and m∠BOC
Statement Reason
1. m∠AOC+m∠______ = ______ 1. _____________
2. m∠______ + ______ +m∠BOC=90° 2. Substitution
3. m∠BOC = _________ 3. Algebra
4. m∠AOC = _________ 4. Algebra
Answer:
Statement Reason
1. m∠AOC+m∠COB= 90° 1. complementary angles
2. m∠30° + BOC+m∠BOC=90° 2. Substitution
3. m∠BOC = 30° 3. Algebra
4. m∠AOC = 60° 4. Algebra
I think I got it
What is the solution to the system of equations?
y = x +3
x=-2.
Answer:
(-2, - 15/2)
Step-by-step explanation:
A student ran a distance of 3 1/2miles each day for 5 days. Then the student ran a distance of 4 1/4 miles each day for the next 5 days. What was the total distance in miles the student ran during these 10 days?
Answer:
To find the total distance, we need to add up the distance the student ran in the first 5 days and the distance the student ran in the next 5 days.
Distance for the first 5 days = 3 1/2 miles/day × 5 days = 17.5 miles
Distance for the next 5 days = 4 1/4 miles/day × 5 days = 21.25 miles
Total distance = Distance for the first 5 days + Distance for the next 5 days
Total distance = 17.5 miles + 21.25 miles
Total distance = 38.75 miles
Therefore, the student ran a total of 38.75 miles during these 10 days.
many lines of symmetry does this rectangle have?
Answer:
Step-by-step explanation:
an normal rectangle will have abot 4 lines of symmetry but since i can not see you rectangle i cant tell for sure
21 + 23 + 25 + ⋯ + 43
Find the sum of the arithmetic series
Answer:
the answer is 384
Step-by-step explanation:
a1 = 21, a2 = 23, a3 = 25
an = 43
d = a2 - a1 = 23 - 21 = 2
d = a3 - a2 = 25 - 23 = 2
Here, common difference is same everywhere
So,
\( a_{n} = a + (n - 1) \times d\)
\(43 = 21 + (n - 1) \times 2\)
\(43 - 21= 2n - 2\)
\(2n - 2 = 22\)
\(2n = 24 \)
\(n = 12\)
Now,
\(s _{n} = \frac{n}{2} (a + a_{n}) \\ \)
\(s _{12} = \frac{12}{2} (21+ 43) \\ \)
\(s _{12} = 6 (64) \\ \)
\(s _{12} = 384 \\ \)
Name two pairs of supplementary angles in the figure below.
Answer:
1. <AEB and <BEC 2. <AED and <CED
Step-by-step explanation:
Supplementary angles are 2 angles that add up to 180 degrees. 180 degrees is also a line. So I picked angles that form a line.
Carly tried to solve an equation step by step. 7a=28 Step 1: 7a/a = 28/7 Step 2: 7 = 4 Find Carly's mistake A: Step 1 B: Step 2 C: Carly did not make a mistake.
This are the right steps
Step 1: first you divide the both size by 7 because there is 7 a's
7a/7 = 28/7
Step 2: You solve the equation
7a/7= a. 28/7 = 4
So, the answer is a = 4
not 7 = 4
Carly did a mistake in Step 1, as she divides the two sides of the equation by different quantities (she divided the left side of the equation by a and the right side of the equation by 7), but we are supposed to follow the same operations on both sides of the equation. Hence, option A: Step 1 is the right choice.
How are linear equations in one variable solved?To solve linear equations in one variable, we isolate the variable to one side of the equation and simplify the other side to get the solution for the equation.
In the process of isolation, the operations performed on one side of the equation have to be performed on the other side too.
How to solve the question?In the question, we are informed that Carly tried to solve an equation step by step. 7a=28 Step 1: 7a/a = 28/7 Step 2: 7 = 4.
We are asked to find the mistake that Carly did in solving the equation.
We first try to solve the equation: 7a = 28.
Step 1: 7a/7 = 28/7 {Dividing both sides by 7}
Step 2: a = 4 {Simplifying}.
Thus, we can see that Carly did a mistake in Step 1, as she divides the two sides of the equation by different quantities (she divided the left side of the equation by a and the right side of the equation by 7), but we are supposed to follow the same operations on both sides of the equation. Hence, option A: Step 1 is the right choice.
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10 PTS
NEED HELP ASAP
Answer:
C (3x2)x8+7
Step-by-step explanation: