As the teacher-to-student ratio is equivalent in all schools, the number of students in school B is 506, the number of teachers in school C is 25 and the number of students in school D is 792 respectively.
What are ratio and proportion?
An equation known as proportion shows that the two ratios presented are equal to one another. A ratio is the comparative or condensed form of two quantities of the same type. The majority of the explanations for ratios and proportions use fractions. A ratio is a fraction that is expressed as a:b, but a proportion says that two ratios are equal. In this case, a and b can be any two integers.
Given, the teacher-to-student ratio is equivalent for all schools.
For school A, ratio of teacher-to-student = 15/330 = 1:22
Then, for school B, the number of students = 23*22 = 506
For school C, the number of teachers = 550/22 = 25
For school D, the number of students = 36*22 = 792
Hence, these are the required number of students and teachers for the respective schools.
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Two number cubes are rolled. Each number cube is labeled 1 through 6.
What is the probability that both number cubes will land on 1?
Step-by-step explanation:
Probabibility = 1/6 * 1/6 = 1/36 = 2.77%.
Which of the following are roots of the polynomial function below?
Check all that apply.
F(x) = 2x3 - 5x2 + 2x + 1
A. 1
3-17
B.
4
C.
3+√17
4
D.
5-/10
6
S+√10
E.
6
Answer:
\(f(x) = 2x^3 -5x^2+2x+1\\\\by \ trail \ and \ error, \\\\f(1) = 2(1^3) -5(1^2) +2(1) +1 = 2 - 5 + 2 + 1 = 0\\\\Therefore, 1 \ is \ a \ root \ of \ f(x).\\\\=> (x -1) \ is \ a \ factor \ of \ f(x).\)
Now using long division,
\(\mathrm{Factor}\:2x^3-5x^2+2x+1:\quad \left(x-1\right)\left(2x^2-3x-1\right)\)
\(\quad \left(x-1\right)\left(2x^2-3x-1\right)\\\\(x-1)(x-\frac{3+\sqrt{17} }{4})(x+\frac{3-\sqrt{17} }{4} )\)
Therefore , the roots are
\(1 , \frac{3+\sqrt{17} }{4} , \frac{3-\sqrt{17} }{4}\)
Plot the points A (-4,4), B (6,-1), C(0,5) and D (-5,0) on a Cartesian plane. Join A and B. Join
C and D. Write down the co-ordinates of the point of intersection of AB and CD.
Pls draw and show I’ll mark brainlist
(-2,3) is the point of intersection of AB and CD is denoted by M.
When two lines or more than two lines cross each other in a plane, this is called the intersection of lines, and the lines are called intersecting lines. They have a common point called the point of intersection.
Given that, the points A (-4,4), B (6,-1), C(0,5) and D (-5,0) on a Cartesian plane. Join A and B. Join C and D. And then we have to write down the co-ordinates of the point of intersection of AB and CD.
The graph of the following information is shown as below.
And the coordinates of point of intersection of AB and CD is denoted by M.
From the graph the coordinates of point of point of intersection of AB and CD is (-2,3) respectively.
Hence, (-2,3) is the required answer.
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What is the measure of each exterior angle of a regular hexagon?
40°
45°
60°
72°
The measure of each exterior angle of a regular hexagon ( six sided regular polygon is 60°.
Option C)60° is the correct answer.
What is a polygon?A polygon is simply a two-dimensional a plane shape enclosed by line segments called sides.
The formula for calculating the exterior angles of a polygon is;
E = 360° ÷ number of sides
Given the data in the question;
The polygon in question is a regular hexagonA regular hexagon has six sides, n = 6So we substitute the value for number of sides into the expression above.
E = 360° ÷ number of sides
E = 360° ÷ 6
E = 60°
The measure of each exterior angle of a regular hexagon ( six sided regular polygon is 60°.
Option C)60° is the correct answer.
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Answer: (C) 60°
Just took it on edge
please someone answer!!
Answer:
x=31
Step-by-step explanation:
x=180-149
x=31
The diameter of the circle shown below is 12 m. What is the area of the circle?
Answer:
36pi meters squared
Step-by-step explanation:
The area of a square is calculated using the formula "pi(r)^2" To find the radius (r), we divide the diameter by 2 (12/2=6). We know that the radius is six and 6^2 = 36. The last step is to multiply by pi.
wut is the answer for -5t = -45
Answer:
9
Step-by-step explanation:
-5t=-45
divide both sides by -5
-5t/5 would leave just t
-45/-5 would be 9
so t=9
lmk if you need more help i would be happy to help more
A sail on a sailboat can be made from a material called sailcloth. Discount Marine Sports sells sailcloth for $11. 75 per square yard. Jessica models a triangular sail on a coordinate plane with coordinates of the vertices of the triangle at (0, 0), (4, 0) and (3, 6). Enter the cost of purchasing the sailcloth for this sail, not including any overlap or stitching on the sail
The sailcloth having vertices of 0, 0), (4, 0), and (3, 6), with a sailcloth cost of $11.75 per square yard is $141
Which method can be used to calculate the cost of the sailcloth?The given parameters;
Cost of the sailcloth per square yard = $11.75
Vertices of the sailcloth are; (0, 0), (4, 0), and (3, 6)
The cost of purchasing the sailcloth = The area of the sailcloth × Cost per square yard
Taking the base length as; 4 - 0 = 4
The height = The distance from the x-axis to the highest point on the sailcloth = The highest y-value = 6
Which gives;
The area of the sailcloth = Area of a triangle = \(\dfrac{1}{2} \times 4 \times 6 = 12\)
The area of the sailcloth = 12 yard²
The cost of purchasing the sailcloth = 12 yard² × $11.75/yard² = $141
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*WILLL GIVE BRAINIEST TO COORECT RESPONCE*
how do i do this?
what is the answer?
Answer:
line mo
Step-by-step explanation:
Because the triangle are congrument
RST and MNO are the triangle
RT is a line in the RST triqangle
it is equal to the MO line in MNO
Write in simplest radical form. You must show all steps for full credit. √5/12 Circle your final answer. (4 points)
The simplest radical form of √5/12 is 1/2√5/3
Radical form:
Radical means the opposite of an exponent that is represented with a symbol '√' also known as root.
Given,
Here we have the number √5/12.
Now, we have to convert this into simplest radical form.
To convert this into radical form, first we have to expand the given terms,
Then we get,
=> √5 x √1/12
We know that, 4 x 3 is 12, So, we have to replace 12 with the expression 4 x 3, then we get,
=> √5 x √1/4 x 3
We know that the value of √4 is 2,
Then the expression is rewritten as,
=> 1/2√5/3
Therefore, the simplest radical form is 1/2√5/3.
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Find the Area of the figure below, composed of a rectangle with a semicircle removed from it. Round to the nearest tenths place.
Area of the figure is 150 units²
Define semicircle and its areaA semicircle is a half of a circle or the locus of all points that are equidistant from two endpoints on a diameter of a circle. It can be thought of as a curved shape that looks like half of a circle, with a flat side on one end.
The area of a semicircle can be found using the formula:
Area = (πr²)/2
where r is the radius of the circle.
Area of given figure= Area of rectangular part + Area of semicircle-Area of semicircle
=10×15
=150units².
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The complete question is;
Find the Area of the figure below, composed of a rectangle and one semicircle,
with another semicircle removed. Round to the nearest tenths place.
Image is attached below.
$200$ points are equally spaced on the circumference of a circle. how many squares can be formed with $4$ of the $200$ points as vertices?
The total number of squares that can be formed with 4 of the 200 points as vertices is 39,600.
The equation for calculating the total number of squares that can be formed with 4 of the 200 points as vertices are:
Number of squares = (200 Choose 4) x (4!/2) = (200!/196! x 4!) x (4!/2)
Using the factorial notation, this simplifies to:
Number of squares = (200 x 199 x 198 x 197) x (2) / (4 x 3 x 2 x 1)
The number of squares = 39,600.
Solving the equation, the total number of squares that can be formed is 39,600.
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How many roots does the equation -11x5+5x-3=0 have?
11
3
5
Answer:
5
Step-by-step explanation:
The Fundamental theorem of Algebra states that a polynomial of degree n has n roots, some may be complex.
11\(x^{5}\) + 5x - 3 = 0 ← is a polynomial of degree 5
Thus the equation will have 5 roots
please help i’ll mark
Answer:
c = 0.50(0.48)(1525)
Step-by-step explanation:
If 52% of the students are female, then
100% - 52% = 48% of the students are male
48% = 48/100 = 0.48
To find the number of students who are male:
⇒ total number of students x 0.48 = 0.48 x 1525
Half = 50% = 50/100 = 0.50
⇒ half of the male students = 0.50 x 0.48 x 1525
Solution: c = 0.50(0.48)(1525)
ratio 15 to 6 in simplist form
Answer:
5 to 3
Step-by-step explanation:
15/3=5
6/3=3
Answer:
5:2
Step-by-step explanation:
15:6 can both be divided by 3, 15/3 = 5, 6/3 = 2, making the ratio,
5:2 hope i helped you (and could i have brainliest it would help me!)
Can someone please help me!!!
Answer: x=20
Step-by-step explanation:
If im wrong, sorry
The angles of a triangle add up to 180 degrees.
(3x+5)+(2x+17)+(2x+18)=180
add the ones alike
3x + 2x + 2x=7x
5+17+18=40
so, 7x+40=180
we need to get the variable by itself so we take away 40 first by subtracting it from both sides of the equal sign
7x=140
we take away 7 from x by dividing it- opposite of multiplication is division
x=20
Answer:
x = 20
Step-by-step explanation:
3x+5° + 2x+18° + 2x+17° = 180° (sum of interior angles in a triangle is 180°)
collect like terms
3x + 2x + 2x + 5° + 18° + 17° = 180°
7x + 40° = 180°
solving for x
x = (180 - 40)/7
x = 140/7
x = 20
A shirt company had 3 designs each of which can be made with short or long sleeves. There are 7 patterns available. How many different types of shirts are available from this company
There are number of 42 different types of shirts are available from this company.
We have to given that,
A shirt company had 3 designs each of which can be made with short or long sleeves.
And, There are 7 patterns available.
Hence, Total number of different types of shirts are available from this company are,
⇒ 3 × 2 × 7
⇒ 42
Thus, There are 42 different types of shirts are available from this company.
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Find the coordinates of a point in Quadrant 3 that makes the following triangles congruent.
Triangle GHJ: G (1,-6), H (2,-5), J (2,1)
Triangle NOP: N (-6,1), O (-5,2)
A. P(-3,-4)
B. P(-4,-3)
C. P(-5,-6)
D. (-6,-5)
Answer:
c. triangle ghj
d. triangle nop (i could be wrong for both though)
Step-by-step explanation:
Two shapes that are the same size and the same shape are congruent. They are identical in size and shape
This is the hardest one yet! Please help!!
Answer:
Write your question.
Step-by-step explanation:
We're waiting...
Answer:
whats the question?
Step-by-step explanation:
OM is height of AOB, and ON is height of DOC. OM=ON (point O is on line AC). AM=4.2cm, DN=2.6cm. find CD.
(see the picture).
please explain
Answer:
6.8 cmStep-by-step explanation:
As per picture we have:
OM = ON - given∠AMO≅∠CN) - given∠AOM≅∠CON - vertical anglesThis gives us:
ΔAMO ≅ ΔCONTwo sides and included angle congruent - ASA postulate
As per above congruency we have:
NC = AM - corresponding sides of congruent trianglesFinding CD:
CD = DN + NCCD = 2.6 + 4.2 = 6.8 cmAnswer:
\(6.8\ cm\)
Step-by-step explanation:
\(We\ are\ given:\\OM\ is\ altitude\ of\ \triangle AOB\\ON\ is\ altitude\ of\ \triangle DOC\\Now,\\Lets\ only\ focus\ on\ the\ interior\ triangles\ inside\ the\ two\ above\ triangles.\\They\ are:\\\triangle OMA\ and\ \triangle ONC.\\\\We\ observe\ that:\\\angle AMO=90[As\ it\ is\ the\ altitude\ of\ \triangle AMO]\\\angle ONC=90[As\ it\ is\ the\ altitude\ of\ \triangle ONC]\\Hence,\\\angle AMO= \angle ONC=90\\\\\)
\(We\ also\ observe\ that,\\\angle MOA\ and\ \angle CON\ are\ vertically\ opposite\ as\ they\ are\ one\ pair\\ of\ opposite\ angles\ formed\ by\ the\ intersection\ of\ Lines\ AC\ and\ MN.\\We\ know\ that,\\"When\ two\ straight\ lines\ intersect,\ the\ pairs\ of\ vertically\ opposite\\ angles\ formed\ are\ equal".\\Hence,\\\angle MOA= \angle CON\)
\(Lastly,\\We\ are\ given\ that,\\MO=ON\)
\(Now,\\The\ ASA\ Congruence\ Criterion\ states\ that' If\ two\ angles\ and\ the\ includ\\ side\ of\ one\ triangle\ is\ equal\ to\ the\ corresponding\ angles\ and\ the\ includ\\ side\ of\ the\ second\ triangle,\ both\ triangles\ are\ congruent'.\\Hence,\\\triangle AMO \cong \triangle CNO.\)
\(Hence,\\AM=NC [Corresponding\ Parts\ of\ Congruent\ Triangles]\\We\ can\ observe\ that,\\CD=DN+NC\\Hence,\\DN=2.6\ cm [Given]\\NC=AM=4.2\ cm [Proven]\\Hence,\\DC=2.6+4.2=6.8\ cm\)
Next question years and \( 8 \% \) compounded quarfetly for the last 9 years. How much monay is currently in the RRSP? The balance is 5 (Round the final answer to the nearest cem as needed Round inter
The amount of money that is currently in the RRSP fund is approximately $117,303.70.
Determining the amount of money in RRSPTo know the amount of money in RRSP
Use the formula for the future value of an annuity:
\(FV = PMT * ((1 + r/n)^(n*t) - 1) / (r/n)\)
where:
FV = future value
PMT = regular payment
r = interest rate
n = number of compounding periods per year
t = number of years
For the first 5 years, we have:
PMT = $2,487.00
r = 6% per year, compounded quarterly, so r/n = 0.06/4 = 0.015
n = 4 quarters per year
t = 5 years
Plug the values into the formula
FV1 = $2,487.00 * (\((1 + 0.015)^(4*5)\) - 1) / (0.015)
= $39,947.05
For the last 9 years, we have:
PMT = $2,487.00
r = 8% per year, compounded quarterly, so r/n = 0.08/4 = 0.02
n = 4 quarters per year
t = 9 years
FV2 = $2,487.00 * (\((1 + 0.02)^(4*9)\) - 1) / (0.02) = $77,356.65
Sum up the two amounts to know the total future value in RRSP
FV_total = FV1 + FV2
= $39,947.05 + $77,356.65
= $117,303.70
Hence, the current balance in the RRSP is approximately $117,303.70.
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The question is incomplete, kindly find the complete question below
Sue has contributed $2,487.00 every three months for the last 14 years into an RRSP fund. The interest earned by these deposits was 6% compounded quarterly for the first 5 years and 8% compounded quarterly for the last 9 years. How much money is currently in the RRSP? The balance is $. (Round the final answer to the nearest cent as needed. Round intermediate values to four decimal places as needed
What is the image point of (−1,1) after a translation right 2 units and down 1 unit?(Exlain+rules)
What equation is equivalent to the equation 5x + 30 = 45?
5x+30=45
tkae the 30 to the other side and it becomes
5x=45-30
that gives you 15. then you want to divide 5 by 15
and then that gives you 3
x=3
Hope this helps you!
(-11 × 4) + (+15 ÷ -3)
Answer:
-49
Step-by-step explanation:
Jen enjoys going to the local gym. She paid a $15 enrollment fee to join and also pays a monthly fee. She has been going to the gym for 6 months and has spent a total of $87. How much does jen pay each month
Answer:
12$
Step-by-step explanation:
It says she paid a fee of 15, since total for six months is 87 it means the fee is included. So basically taking out the fee she paid a total of 72.
NOW you can divide by 6. which will give you 12 dollars per month.
This can trick people because they dont subtract the fee and think they can just divide by 6.
Find trigonometric notation: z = 1+2i O√5 (cos 63.4°-i sin 63.4°) O√5 (cos 63.4° + sin 63.4°) √5 (cos 6.34° + i sin 6.34°) √5 (cos 63.4° + i sin 63.4°)
The correct trigonometric, notation for z = 1+2i is √5 (cos 63.4° + i sin 63.4°).
The complex number z can be written in trigonometric form as z = r(cos θ + i sin θ), where r represents the magnitude of z and θ represents the argument (or phase) of z.
In this case, the magnitude of z is √(1² + 2²) = √5.
To find the argument θ, we can use the inverse tangent function:
θ = arctan(2/1) = 63.4°.
Therefore, the trigonometric notation for z is √5 (cos 63.4° + i sin 63.4°).
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The best response for individuals who handle biohazards who have an existing cut or open wound on their hands is?
The best response for a person handling biohazards with an open wound on their hands is to not work with biohazards until the cut is healed or cleared by a healthcare professional to work with the use of waterproof bandages and double gloves.
When should a person with a wound handle biohazards?Biohazards are extremely dangerous because they can get into the human body and cause a lot of damage.
This is why a person with an open would or existing cut should not handle a biohazard until they are cleared to to so by a trained healthcare professional.
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Beryl Is the first person to finish a 5k race and is standing 15 feet beyond the finish line another runner, Jeremy, is currently trying to finish the race and has approximately 14 before he reaches the finish line. What is the minimum possible distance between Beryl and Jeremy?
Based on the distance that Beryl is standing from the finish line, and the distance till Jeremy finishes the race, the minimum possible distance between Beryl and Jeremy is 29 feet.
How to find the minimum possible distance?Beryl has finished the race and is the first person to do so. She has then gone further such that Beryl is now about 15 feet beyond the finish line.
Jeremy on the other hand, still has to cover 14 feet before he can reach the finish line.
The minimum possible distance between them is therefore:
= Distance past the finish line for Beryl + Distance to the finish line for Jeremy
= 15 + 14
= 29 feet
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Why is pi important in math?
What is the area of a rectangle on a graph
60 units
Answer:
76 unit
Step-by-step explanation:
because added the rectangle size and added the 60 with 16