Answer:
10080 ways
Step-by-step explanation:
First we find the amount of combinations of teachers who can be chosen, which is denoted by 10 choose 3 (10 nCr 3), shown below:
10! / (3! * 7!) --> 120
Next to find the amount of combinations of students, you evaluate 9 choose 3(9 nCr 3), shown below:
9! / (3! * 6!) --> 84
To find the total number of combinations, you multiply the teachers combinations by the students combinations:
120 * 84 = 10080
PLEASE HELP ME 2 QUESTIONS ARE LISTED DOWN BELOW
A) The linear equation is:
y = (3/4)*x + 3
B) The sets with only positive elements are:
{x| x ∈ N}{y| 0 < y < 1}{y| 3 ≤ y ≤22}How to write the linear equation?A general linear equation can be written as:
y = a*x + b
Where a is the slope and b is the y-intercept.
Here, we do know that the y-intercept of the linear equation is (0, 3), then we know that b = 3.
Then the line is something like:
y = a*x + 3
We also know that the line passes through (-4, 0), then we can replace these values in the equation above to get:
0 = a*-4 + 3
4a = 3
a = 3/4
Then the linear equation is:
y = (3/4)*x + 3
In which sets all the numbers are positive?The sets where all the numbers are positive are:
{x| x ∈ N}
Where N is the set of the natural numbers, these are all the integers equal to or larger than 1, so all are positives.
{y| 0 < y < 1}
There we can see that y must be larger than zero, so all the elements are positive.
{y| 3 ≤ y ≤22}
Here the elements are between 3 and 22, so all of these are positve.
Learn more about linear equations:
https://brainly.com/question/1884491
#SPJ1
a simple l cell organism divides in to 3 identical cells every 20 minutes, how many organisms will there be after 8 hours.
Step-by-step explanation:
Let’s see … one division every 20 minutes? That would be like <grinding noise> three binary doublings per hour, right? Now for the tough part … three doublings per hour, for eight straight hours? <more grinding noises> … Is that even mathematically possible? After much thinking, I decide that the total number of binary doublings has to be in the neighborhood of no less than eight times three!
Would you believe that 224=16777216 ? While mathematically true, it is not the answer to the posted question… Since we started at 0 minutes, there are only 23 buddings inside eight hours … so the answer has to be 223=8388608 , right?
Wrong again, this time forgetting all about the newlybud bacteria generations, that all go on budding side by side of their ancestors …
Now that you’ve caught on to the basic idea, I leave it to you to figure out the real answer! Keep in mind that after 20 minutes, you have two budding bacteria to reckon with, for 440 minutes … after 40 minutes another two (for 420 minutes), and so on, down the line.
Hint: the answer still is not 16777216 …
Answer:
after 1 division,there is 3 cell
after 2 divisions,there is 9 cell.
after 3 divisions,there is 27 cell
The above data takes the form of Geometric sequence.
3,9,27......,last term
here,Common ratio(r)=9/3=27/9=3
and,first term(a)=3
Let, n be the no.of divisions.
then, n=8 hrs/20 min=480 min/20min=24
Now,from the G.S,
last term=ar^n-1
=3×3^24-1
=9²³
Hence,9²³ organisms will there be after 8 hours
It can be written as 8.86293812×10²¹ as well
*Mark me brainliest
Rewrite the following without an exponent. 1/4^-4
Answer:
[tex]\frac{1}{4^{-4}} = 256[/tex]
Step-by-step explanation:
Given
[tex]\frac{1}{4^{-4}}[/tex]
Required
Write without the exponent
[tex]\frac{1}{4^{-4}}[/tex]
Apply the following law of indices
[tex]\frac{1}{a^m} = a^{-m}[/tex]
So, we have:
[tex]\frac{1}{4^{-4}} = 4^{-(-4)}[/tex]
Evaluate the bracket
[tex]\frac{1}{4^{-4}} = 4^4[/tex]
[tex]\frac{1}{4^{-4}} = 256[/tex]
Please help giving brainliest please
Answer:
$87025
Step-by-step explanation:
Net worth is assests minus liabilities
7.89 divided by 2 step by step
Answer:
3.945
Step-by-step explanation:
Hello! Can you please help me on this math problem? =)
Find the area of the composite shape. Use 3.14 for π and round to the nearest hundredth.
Answer:
95.52
Step-by-step explanation:
[tex]\frac{13*6}{2} <= The area of the triangle\\6 = radius\\(6^{2} )* 3.14\\\frac{113.04}{2} +39\\95.52[/tex]
A survey was taken asking how many siblings students had.
. . . .
0
1
2
3
4
Number of Siblings
Based on the dot plot, find the median and interquartile
range.
Answer:
MEDIAN: 3 IRQ (Interquartile Range): 2
Step-by-step explanation:
To find median, divide the number of data points by 2 (5/2) and round to the nearest whole. So, 5/2 = 2.5 rounded to nearest integer, is 3.
To find the interquartile range, subtract Q1 (1) from Q3 (3) which equals 2.
I hope dis right!!
Use the information provided to write the standard form equation of each ellipse.
Vertices: (20,5) (-6, 5)
Co-Vertices: (7, 10) (7,0)
O (1-7)
+
(7-5)
25
=1
169
O (2+6)
169
+
(y+6)
25
1
(1-7)
+
= 1
25
169
(2-7)
(y-5)
+
= 1
81
25
Answer:
B
Step-by-step explanation:
A box holds 2 Pens, 2 Pencils And one highliter
Tim Picks 1 item, A pen, And does not return it to the box. He then Picks a second item
what is the
Probability that the second item
IS A Pencil ?
When a box contains 2 pens, 2 pencils, and 1 highliter, there is a 50% chance that the second item is a pencil.
what is probability ?Probability theory, a subfield of mathematics, gauges the likelihood of an event or a claim being true. An event's probability is a number between 0 and 1, where approximately 0 indicates how unlikely the event is to occur and 1 indicates certainty. A probability is a numerical representation of the likelihood or likelihood that a particular event will occur. Alternative ways to express probabilities are as percentages from 0% to 100% or from 0 to 1. the percentage of occurrences in a comprehensive set of equally likely outcomes that result in a certain occurrence compared to the total number of outcomes.
given
according to the question , the probability is a
2 / 1+2+1 * 100 %
2/4 *100%
= 50 %
after picking out a pen , the remaining are 1 pen , 2 pencils and 1 highlighter . in total of 4 items , 2 items are pencil .
When a box contains 2 pens, 2 pencils, and 1 highliter, there is a 50% chance that the second item is a pencil.
To know more about probability visit:
https://brainly.com/question/11234923
#SPJ1
You buy 8.25 ounces of almonds and 7.5 ounces of cashews. You combine the nuts and divide them equally into 9 bags. How many ounces are in
each bag?
Options:
1.75 ounces
9.5 ounces
15.5 ounces
17.5 ounces
No. of many ounces are in each bag will be 1.75 ounces
What is the division of decimals?Unlike the division of natural numbers, the division of decimals is fairly straightforward. To divide decimal numbers by various sorts of numbers, such as whole numbers, decimal numbers, fractions, the powers of ten, etc., we can employ a variety of techniques. You may find answers to division of decimals quizzes and more practise problems in this article.
Dividing decimals is equivalent to dividing whole numbers, except when doing so, we take into account the decimal point as the final answer. The following are many options for splitting decimals:
Dividing by whole numbers with decimalsA decimal number divided by another decimal numberDecimal division using the powers of 10, specifically 10, 100, and 1000To be learn more about decimals refer to:
https://brainly.com/question/18744986?referrer=searchResults
#SPJ1
Fill in the blank to make equivalent rational expressions.
Answer:
Step-by-step explanation:
a.we should Make their denominators the same.
16[tex]x^{8}[/tex]÷4x=4[tex]x^{7}[/tex]
b.molecule multiply 4[tex]x^{7}[/tex], 5·4[tex]x^{7}[/tex]=20[tex]x^{7}[/tex]
c.finally, we get it
the answer is 20[tex]x^{7}[/tex]
Dan is training his puppy, Lola, to sit. Dan holds a treat 5 feet above the ground until Lola
sits. As soon as she does, he drops the treat, and Lola catches it in her mouth 1.5 feet above
the ground.
To the nearest tenth of a second, how long does the treat fall before Lola catches it?
Hint: Use the formula h = -16t² + s.
The distance the treat falls before Lola catches the treat is 3.5 feet.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
The distance of the treat from the ground = 5 feet.
The distance the dog jumps to catch the treat from the ground = 1.5 feet.
Now,
The distance the treat fall before Lola catches.
= 5 - 1.5
= 3.5 feet
Thus,
The treat falls for 3.5 feet.
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ1
what is the inverse matrix that can be used to solve this systems of equations
Step-by-step explanation:
The answer is OPTION C
Find the Inverse of a 3x3 Matrix.
First
Find the Determinant of A(The coefficients of e
Proceed towards finding the CO FACTOR of the 3x3 Matrix.
+. - +
A= [ 1 -1 -1 ]
[ -1 2 3 ]
[ 1 1 4 ]
The determinant of this is 1.
Find the co factor
| 2 3 | |-1 3 | |-1 2 |
| 1. 4. | |1 4 | |1. 1 |
|-1. -1 | |1 -1 | |1 -1
| 1. 4 | |1. 4| |1 1|
|-1. -1 | |1 -1 | |1. -1
|2. 3| |-1. 3| |-1 2|
After Evaluating The Determinant of each 2x 2 Matrix
You'll have
[ 5 7 -3]
[3 5 -2 ]
[-1 -2 1]
Reflect this along the diagonal( Keep 5,5 -2)
Then switching positions of other value
No need of Multiplying by the determinant because its value is 1 from calculation.
After this
Our Inverse Matrix Would be
[ 5 3 -1 ]
[7 5 -2 ]
[ -3 -2 1]
THIS IS OUR INVERSE.
SO
OPTION C
The radius of a circle is 8 miles. What is the area of a sector bounded by a 45° arc in
terms of ?
a. 64 miles
b. 4 miles
c. 8 miles
d. 512 miles
Answer:
[tex]8\pi\text{ mi}^2[/tex]
Step-by-step explanation:
The area of a full circle is [tex]A = \pi r^2[/tex] where r is the radius.
The area of the circle in this problem is [tex]A=\pi(8)^2=64\pi[/tex].
A 45 degree central angle (that's how arcs are measured) accounts for 1/8 of the circle (because it's 45 degrees out of a full circle of 360 degrees, and 45/360 = 1/8).
The area of the sector is [tex]\frac{1}{8}(64\pi)=8\pi[/tex] square miles
In triangle ABC, angle A is 37° and angle B is 24*. Select all triangles which are similar to triangle ABC.
D triangle DEF where angle Dis 37° and angle E is 24
• triangle GHI where angle G is 37" and angle I is 34°
O triangle JKL where angle J is 35" and angle L is 125*
• triangle MNO where angle Nis 24* and angle E is 119
O triangle POR where angle O is 24° and angle R is 30
Answer:
Triangles DEF and JKL are similar to triangle ABC because they have corresponding angles with the same measure.
Step-by-step explanation:
•Triangles DEF and JKL are similar to triangle ABC because they have corresponding angles with the same measure.
•The Triangle GHI is not similar to triangle ABC because the measure of angle G does not match the measure of angle A.
•The Triangle MNO is not similar to triangle ABC because the measure of angle N does not match the measure of angle B.
• The Triangle POR is not similar to triangle ABC because the measure of angle R does not match the measure of angle A or B.
To learn more about traingles :-
https://brainly.com/question/21752738?referrer=searchResults
https://brainly.com/question/8141142?referrer=searchResults
Choose the expression that is equivalent to fraction with 7 raised to the negative tenth power in the numerator and 7 raised to the fourth power times seven raised to the zero power in the denominator.
negative 1 divided by 7 raised to the fourteenth power
−714
1 divided by 7 raised to the fourteenth power
714
The equation that corresponds to fraction [tex]\frac{7^{-10} }{(7^{4} )(7^{0} )}[/tex] is [tex]\frac{1}{7^{14} }[/tex] . A phrase by itself could contain an action .
what is expression ?It is possible to multiply, divide, add, or subtract in math. An expression has the following structure: Expression: (Math Operator, Number/Variable, Math Operator). A mathematical expression is made up of numbers, variables, and functions (such as addition, subtraction, multiplication or division etc.) It is possible to compare expressions and phrases. In English, a phrase by itself could contain an action, but it doesn't constitute a full sentence.
given
[tex]\frac{7^{-10} }{(7^{4} )(7^{0} )} \\= \frac{1}{7^{4} } *\frac{1}{7^{10} } * 1\\= \frac{1}{7^{14} }[/tex]
The equation that corresponds to fraction [tex]\frac{7^{-10} }{(7^{4} )(7^{0} )}[/tex] is [tex]\frac{1}{7^{14} }[/tex] .
To know more about expression visit :-
https://brainly.com/question/14083225
#SPJ1
The student council is responsible for setting up the tables for
an awards banquet at the end of the year.
There are 144 people
who confirmed that they would attend the banquet.
The equation
8x +12y = 144 models this situation, where x is the number of
circular tables and y is the number of rectangular tables.
Find the x- and y-intercepts.
On solving the provided question, we can say that - here in the slope intercept [tex]2y / 2 = -4x /2 + 24 / 2 = > y = -2x + 12\\[/tex]
what is slope intercept?The point on the y-axis where the slope of the line passes is known as the intersection point in mathematics. the location on a line or curve where the y-axis crosses that point. This is demonstrated by putting y = mx+c as the equation for the straight line, where m denotes the slope and c the y-intercept. In the intercept form of the equation, the slope (m) and y-intercept (b) of the line are highlighted. The slope is m, and the y-intercept is b for equations in the intercept form (y=mx+b). Additionally, certain equations may be recast to seem like slope intercepts. For instance, if y=x is rewritten as y=1x+0, the slope becomes 1 and the y-intercept becomes 0.
y = mx + c
m = slope, c = y-intercept
[tex]4x + 2y = 24\\2y = -4x + 24\\2y / 2 = -4x /2 + 24 / 2\\y = -2x + 12\\[/tex]
To know more about slope intercept visit:
https://brainly.com/question/19824331
#SPJ1
Nathan and Lucy are selling blueberry and apple pies for a fundraiser. Nathan sold and 13 apple pies for a total of $147. Lucy sold 7 blueberry pies and 11 apple $204. What is the cost of one blueberry pie and one blackberry pie?
The cost of one blueberry pie and one blackberry pie is $11.30 and $11.373 respectively.
What are mathematical operators?In mathematics, an expression is a group of numbers and operations. The components of a mathematical expression that perform an operation are as follows:
Operands: The numbers used in an operation are called operands. Depending on the type of operation, different terms are applied to the operands.
Given Nathan sold 13 apples pies for $147,
cost of 13 apple pies = $147
cost of 1 apple pie = 147/13 = $11.30
Lucy sold 7 blueberry pies and 11 apple pie $204.
7 blueberry + 11 apple pie = $204
cost of 11 apple pie = $124.384
cost of 7 blueberry = 204 - 124.384 = $79.615
cost of 1 blue berry = 79.615/7 = $11.373
Hence the cost of 1 apple pie is $11.30 and 1 blueberry is $11.373.
Learn more about Mathematical operators;
https://brainly.com/question/8959976
#SPJ1
ADC is a triangle
AED and ABC are straight lines
EB is parallel to DC
Angle EBC = 148
Angle ADC = 63
Work out the size of angle EAB
Answer:
Angles EAB = 85 degrees
Step-by-step explanation:
This my answer with the working steps...
Help plz:)))I’ll mark u Brainliest
Answer:
8times 10 times 4 divided by 2 pplus 8 times 8 equals 64 + 80 = 144 m squared
Step-by-step explanation:
Answer:
Step-by-step explanation:
Sketch the Asymptotes and graph the function.
the quadratic equation have been solved and the required graph is attached below.
What is quadratic equation?
it's a second-degree quadratic equation which is an algebraic equation in x. Ax2 + bx + c = 0, where a and b are the coefficients, x is the variable, and c is the constant term, is the quadratic equation in its standard form. A non-zero term (a 0) for the coefficient of x2 is a prerequisite for an equation to be a quadratic equation. The x2 term is written first, then the x term, and finally the constant term is written when constructing a quadratic equation in standard form. In most cases, the numerical values of letters a, b, and c are expressed as integral values rather than fractions or decimals.
The equation:
[tex]\frac{x^{2}-7x+12 }{x^{2} -1}[/tex]
Its a quadratic equation in both numerator and denominator, by dividing the x² will be get a graph as given in the attached file.
Hence, the quadratic equation will be solved and the required graph is attached below.
Learn more about quadratic equations, by the following link.
brainly.com/question/1214333
#SPJ1
DUE SOON! PLEASE HELP!
SHOW ME HOW TO GET IT FOR NEXT TIME! SO CONFUSED AND BEEN STUCK FOREVER PLEASE HELP!
QUESTION DOWN BELOW!
The value of m in the given equation 4x² -mx +9 will be 13.
What is polynomia?A polynomial is a mathematical equation that solely uses the operations addition, subtraction, multiplication, and non-negative integer exponentiation of variables. Variables are sometimes known as indeterminates in mathematics. Polynomials come in various varieties. Monomial, binomial, and trinomial, respectively.
given an equation 4x² -mx + 9 = 0 and the question states that it has a root that is equal to 1
Since 1 is the root of this quadratic equation it will satisfy the equation
Substituting the values in the equation
4 - m + 9 = 0
m = 13
Therefore, In the given equation 4x² -mx +9 the value of m will be 13.
Learn more about polynomials here:
https://brainly.com/question/11536910
#SPJ1
3. Function G is defined by the equation G(x) = [x].
Function R is defined by the equation R(x) = x/+2.
Describe how the graph of function R relates to the graph of G, or sketch the graphs
of the two functions to show their relationship.
Answer: The function G(x) = [x] returns the greatest integer less than or equal to x. This means that for any value of x, G(x) will be the largest integer that is less than or equal to x. For example, G(3.5) = 3 and G(5) = 5.
The function R(x) = x/+2, x is any real number, this function returns the value of x incremented by 2. In other words, it is the result of adding 2 to x.
On the other hand, the graph of R(x) is a line that goes through the point (0, 2) and has a slope of 1, this means that for every change of 1 unit in the x-axis, the y-axis will change by 1 unit as well.
When we compare the two graphs, we can see that the graph of R(x) is shifted up 2 units from the graph of G(x) . If the graph of G(x) is thought of as the "ground", the graph of R(x) is "floating" two units above it. Also, the graph of R(x) is continuous while the graph of G(x) is not.
To sum up:
-The graph of G(x) is a step function, which start at the negative infinity and jumps up to the next integer at every point.
The graph of R(x) is a line that goes through the point (0, 2) and has a slope of 1
-R(x) is always two units above G(x) , and is a continuous function, while G(x) is not.
Step-by-step explanation:
why does the dolphins are said the biggest animals of sea
Answer:
They are not. Blue whales are.
Step-by-step explanation:
A sphere is inscribed in a cube with a volume of 8. cubic yards. What is the surface area of the sphere?
Answer:
64
Step-by-step explanation:
The surface area of the sphere is 12.56 yd².
What is surface area?Surface area is the amount of space covering the outside of a three-dimensional shape.
Given that a sphere is inscribed in a cube with a volume of 8. cubic yards. We need to find the surface area of the sphere,
Since the sphere is inscribed in the cube therefore the diameter of the sphere is equal to the side length of the cube,
Now, finding the side length of the cube,
We know volume of a cube = side³
Therefore,
side³ = 8
side = 2 yd
Therefore,
Diameter of the sphere = 2 yd
Radius = 1 yd
The surface area of the sphere = 4 × π × radius²
= 4 × 3.14 × 1²
= 12.56
Hence the surface area of the sphere is 12.56 yd²
Learn more about surface area click;
https://brainly.com/question/29298005
#SPJ2
find the measure of angle x
Answer:
103+37=X
X=140 is the answer
Andre drank 1.5 liters of water he brought. If he drank 80% of his entire hike, how much did he drink?
(please do explanation)
Answer:
He drank 1.2 liters
Step-by-step explanation:
1.5 X 0.8 (80%) = 1.2
Also the dude below also took my points when i asked a question :)
Which is the sum of the 2 smallest angles in a right triangle?
O A. 30 degrees
OB. 45 degrees
O c. 90 degrees
O D. 180 degrees
O E. 360 degrees
The sum of the 2 smallest angles in a right angled triangle be [tex]90^{0}[/tex].
What is angle sum property of triangle?"The angle sum property of a triangle states that the sum of the angles of a triangle is equal to 180º."
What is right angled triangle?"A right angled triangle is a triangle with one of the angles as 90 degrees. A 90-degree angle is called a right angle, and hence the triangle with a right angle is called a right triangle."
As we know the sum of the three angles of a right angled triangle is 180 degrees.
<A + <B + <C = [tex]180^{0}[/tex]
We also know the right angled triangle have a 90 degrees angle among the three angles.
So the sum of the 2 smallest angles in a right angled triangle be
<A + <B + <C = [tex]180^{0}[/tex]
<A + <B = [tex]180^{0}[/tex] - <C
<A + <B = [tex]180^{0}-90^{0}[/tex]
<A + <B = [tex]90^{0}[/tex]
Hence, the sum of the 2 smallest angles in a right angled triangle be [tex]90^{0}[/tex].
Learn more about angle sum property of triangle and right angled triangle here
https://brainly.com/question/21099419
https://brainly.com/question/3772264
#SPJ2
help please!
researchers surveyed recent graduates of two different universities about their income. the following two way table displays data for the sample of graduates who responded to the survey.
how many graduates from university a had an income under $20,000?
The numbers shown on the chart are the number of students for each category.
Looking at the line for Under $20,000 find the number located under University A.
The number located under University A for under $20,000 is 35
The answer would be 35
Answer:
right answer is 160/300
Step-by-step explanation:
Someone help me please show work
is this about time.................