We want to find the number of students that are not good in any of the courses.
There are 80 students.
45 are good in mathematics
15 are good in both, mathematics and in English
13 are good in both, mathematics and psychology
16 are good in both English and psychology
20 are good in psychology
9 are good in all of the courses.
First, we know that we have:
45 good in math + 20 good in psychology = 65 students good in something.
But we know that:
13 are good in both, mathematics and psychology
This means that there are 13 students that are being counted twice, so we need to subtract 13.
45 + 20 - 13 = 52 students good in something.
Now we know that:
15 are good in both, mathematics and in English
16 are good in both English and psychology
9 are good in all of the courses.
So one would want to also count these students, but notice that these are already good in mathematics or in psychology, so these are already counted.
And we can't see the number of students that are only good with English, so we can conclude that
52 students are good in something.
then 28 students are not good at any of the 3 courses.
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your sister is selling girl scout cookies that cost $4.25 a box. your family bought 6 boxes. how many more boxes of cookies must your sister sell in order to $255
An elevator was on the 23rd floor. It
then went down 7 floors and then
another 4 floors. What floor was the
elevator on now?
Answer:
The 12th floor
Answer:
12th floor
Step-by-step explanation:
4+7 = 11
23-11 = 12
The opposite of -17 I need the answer please and thanks
simplify 3/8 and 9/64
PLEASE HELP
Answer:
3/8 simplified is still 3/8 (0.375 in decimal form)
9/64 simplified is also still 9/64 (0.140625 in decimal form)
Step-by-step explanation:
The velocity, V, of a specific object being dropped from a particular height, h, can be found by the radical function V = sqrt 2ha. Where A represents the acceleration in ft/sec2. If the acceleration due to gravity is 32.2 ft/sec2, at what height should you drop an object in order for it to have a velocity of 60 ft/sec?
0.9 feet
55.6 feet
55.9 feet
3,864 feet
Answer:
55.9 feet
Step-by-step explanation:
Basically you can just plug in what they give you
givens:
V=60 ft/sec
a= 32.2 ft/sec^2
function to find velocity: [tex]V=\sqrt{2ha[/tex]
if you plug everything in: [tex]60=\sqrt{2(h)(32.2)[/tex]
you can just put that equation into a website and ask it to solve for h which would give you your answer
but, if you want the work,
FIRST square both sides of the equation to get rid of the square root symbol on the left so,
[tex]60^{2} =\sqrt{2(t)(32.2)} ^{2}[/tex]
which cancels out to
[tex]3600= 2(t)(32.2)[/tex]
NEXT: divide both sides by 32.2 to get 2t by its self so,
[tex]\frac{3600}{32.2} =\frac{2(t)(32.2)}{32.2}[/tex]
which should get you to
[tex]111.80124223=2(t)[/tex]
LAST: divide both sides by 2 to get t by itself so
[tex]\frac{111.80124223}{2} =\frac{2(t)}{2}[/tex]
and you should end up with
55.900621 = t
which rounded would be an answer of
t= 55.9 feet
Answer:
YUP IT IS 55.9
Step-by-step explanation:
I don't got an explanation, but I can say that I got 100 on my quiz.
-12x²-5x-7x²+6+13x simplify
Answer:
-19[tex]x^{2}[/tex] + 8x + 6
Step-by-step explanation:
−12[tex]x^{2}[/tex]−5x−7[tex]x^{2}[/tex]+6+13x
= −12[tex]x^{2}[/tex]−7[tex]x^{2}[/tex]+13x-5x+6
= -19[tex]x^{2}[/tex] + 8x + 6
find the number halfway between 19 and -55
Answer:
-18 is answer vvv9p6trrrd
The textbook for a course in basic mathematics costs $35. There are 34 students in the class. Find the total cost of the textbooks for this class.
Answer:
1190 notebooks
Step-by-step explanation:
Cost per notebook * number of students
35 * 34 = 1190
35*30=1050
35*4 = 140
35*34 = 1050 + 140 = 1190
So the answer is 1190 notebooks.
In math how can you tell if something is a function.
Answer:
if the line dosent have the same x's
Step-by-step explanation:
Answer this question.
Answer:
B. y = -2x + 5
Step-by-step explanation:
By looking at the table of values, as x increases by 1, y decreases by 2. This means the slope is -2. By process of elimination, this leaves with answer B.
100,203 in expanded form
hi <3
it would be 100000 + 200 + 3
hope this helps :)
4. Use the properties of exponents to simplify the expression: y ^ -4 (y ^ 3) ^2
Answer:
y^2
Step-by-step explanation:
See the image for solution
Hope it helps
Have a great day
A basketball player has a 25% accuracy rate at making three-point shots. Mark thought it was reasonable that each attempt was independent and the probability stayed at 25% for this player. P (X equals k )equals (1 minus p )to the power of k minus 1 end exponent p Using the geometric distribution formula, what is the probability that the basketball player makes his first three-point shot on the third attempt
The probability that the basketball player makes his first three-point shot on the third attempt is 0.38.
What is geometric distribution?A discrete probability distribution known as a geometric distribution may be used to describe the likelihood of experiencing success for the first time following a string of failures. Up until the first success, a geometric distribution can undergo an infinite number of trials.
The number of separate trials necessary to achieve success is described by the geometric distribution,
which is a probability distribution.
In this scenario, the basketball player's three-point accuracy rate is 25%, which indicates that the probabilities of success (hitting a three-point shot) and failure (missing a three-point shot) are 0.25 and 1-p, respectively.
The likelihood that the basketball player will make his first three-point shot on the third try,
according to the geometric distribution formula, is:
P(x = 3) = (1-p)⁽³⁻¹⁾ × p
= (0.75)² × 0.25
= 0.38
Hence, there is a 38% probability that the basketball player will make his first three-point shot on the third attempt.
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GENTE PORFAVOR ME AJUDA
You have asked for help without actually providing what you need help on.
Based on a sample of 400 people, 22% owned cats
The p value is
Answer:
88 people
Step-by-step explanation:
400*22/100
4*22
88 people
Based on a sample of 400 people, the 88 people owned cats.
What is the fundamental principle of multiplication?Multiplication is the mathematical operation that is used to determine the product of two or more numbers. If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.
We are given that on a sample of 400 people, 22% owned cats
Let consider that the number of cats are p then we have;
22% of 400 = p
Thus, p = 400 x 22/100
p = 4 x 22
p = 88 people
The p value is 88
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Solve for n: n-70=200-(15x4)
Analyze the diagram below and complete the instructions that follow.
Identify the cross section of the solid shown in the diagram.
A. tetrahedron
B. quadrilateral
C. rectangle
Dsquare
Find the smaller of 2 consecutive even integers if the sum of twice the smaller integer and the larger
integers is -16.
Answer:
n = -6
Step-by-step explanation:
2n + (n + 2) = -16
3n + 2 = -16
3n = -18
18.670308 to the nearest hundred-thousandth
Answer:
It is 18.67031
Step-by-step explanation:
[tex]thats \: it[/tex]
The nearest hundred-thousandth of the number is 18.67031.
To find the nearest hundred-thousandth.
What is decimal?Decimals are the numbers, which consist of two parts namely, a whole number part and a fractional part separated by a decimal point.
If the digit is less than 5, round down the nearest digit. If the digit is more than or equal to 5, round up the nearest digit.
the given number is 18.670308 ,then round up the nearest digit is 18.67031.
So, the nearest hundred-thousandth of the number is 18.67031.
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If a car is traveling at 45 km/h, what is its speed in meters per second?
Answer:
4.5 meters
Step-by-step explanation:
find the value of xand y : x=2y and x+y=6
Answer:
y=2 x=4
Step-by-step explanation:
Substitute x with 2y so the second equation is 2y+y=6
Then simplify your new equation:
3y=6
y=2
If y=2 and x=2( 2) then x=4
if 2x + 8 = 16, what is the vaule of x + 4?
Answer:
your answer
Step-by-step explanation:
mark me a brainlist
Hello!
✥ Answer: ✥
Value of x + 4 is 8.
❀ Step-by-step explanation: ❀
1. If 2x + 8 = 16, what is the value of x + 4?
2x + 8 = 16
2x = 16 - 8
2x = 8
x = 8 ÷ 2
x = 4
x + 4 => 4 + 4 = 8
Good luck!
PLZ HELP WILL MARK BRAINLIEST!
Step-by-step explanation:
directrix = (1, -1)
focus = (-3, 2)
vertex = (-3, 3)
The Runwell Company has 8 employees. Five of
the employees earn $12 an hour, two earn $9 an
hour and 1 earns $11 an hour. What is the average
amount per hour that the employees are paid?
Answer:
41
Step-by-step explanation:
i think i dont know that much
smallest to largest. 14/5, 2.4, 2 1/3, 1.41
Answer:
1.41, 2 1/3, 2.4, 14/5
Step-by-step explanation:
Change everything to decimal points first
Which expressions are equivalent to the expression 7(5 + m) - 8?
Answer:
27 + 7m
Step-by-step explanation:
[tex]7(5 + m) - 8[/tex]
open the bracket:
[tex] = 35 + 7m - 8 \\ = 27 + 7m[/tex]
a sum of $6000 is divided into 3 parts in the ratio 5:4:3 . The smallest portion is?
What is a 15 of the sequence –7,2, 11, ...?
We can see: Everytime, the new number is the sum of the number behind it with 9.
So the 15th will total add: 9 x 14 = 126
Start from number -7 so the 15th number is : 126 -7 = 119
SO: B.119 is the answer
NL: Sorry my english was bad
Answer:
119
Step-by-step explanation:
We need to find the 15th term in the sequence. The pattern is that each term increases by 9.
We can then count to the 15th term
-7 + 14*9 = 119
Therefore, the 15th term is equal to 119, or answer B.
HELP ME PLEASEEEEEEEE
Answer:
c
Step-by-step explanation:
i search it up
Simplify show step by step 30 POINTS!
Step-by-step explanation:
hopefully it makes sense and is visible
:)