Answer:
I. Mean = 15
II. Median = 15
Step-by-step explanation:
Given the following data;
Total number of students = 8
x = 18, 10, 20, 18, 12, 19,12, 11
F(x) = 18 + 10 + 20 + 18 + 12 + 19 + 12 + 11
F(x) = 120
To find the mean;
Mean = F(x)/n
Mean = 120/8
Mean = 15
To find the median;
Median refers to the middle number of a sorted data.
x = 10, 11, 12, 12, 18, 18, 19, 20
Middle numbers = 12 and 18
Median = (12 + 18)/2
Median = 30/2
Median = 15
r + 4s = -8
3r + 2s = 6
Answer:
R = 4
s = -3
Step-by-step explanation:
r + 4s = -8
3r + 2s = 6
there are several ways to solve this system but i chose the elimination method and multiplied the second equation by -2 to get:
-6r - 4s = -12 and added it to the first equation
+ 1r + 4s = -8
-5r = -20
r = 4
plug in to find 's': 4 + 4s = -8
4s = -12
s = -3
PLS HELP ASAP I AM ALMOSF DONE PLS
Answer:
im saying d is the answer
Step-by-step explanation:
A school district currently has 12,000 students. Based on declining enrollment figures, the number of students in the school district is expected to decline by 5% each year. Which of the following functions represents the number of students, S, in the school district after n years?
Answer:
S(n) = 12,000(–0.05)n
Step-by-step explanation:
The function that represents the number of students, S, in the school district after n years is [tex]S=12000(0.95)^n[/tex]
Original population , P = 12000
Rate of decline, r = 5%
r = 5/100
r = 0.05
The number of years = n
The population of students after n years will be given by the formula:
[tex]S =P(1-r)^n[/tex]
Substitute r = 0.05 and P = 12000 into the formula above
[tex]S=12000(1-0.05)^n\\\\S=12000(0.95)^n[/tex]
The function that represents the number of students, S, in the school district after n years is [tex]S=12000(0.95)^n[/tex]
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Please help me out someone
Answer:
Step-by-step explanation:
is SAS because you are given a pair of sides ≅, you have a pair of angles that are ≅ because 2 ║lines cut by a transversal and, you have another side because one of the sides is shared
Find the volume of the cube that measured 4.7 inches by 4.7 inches 4.7 by 4.7 inches. The volume of the cube is (simplify your answer. round to three decimal place as needed.)
Answer: Volume = 103.823 cubic inches
Step-by-step explanation:
Volume= length x width x height
Volume = 4.7inxhes x 4.7inxhes x 4.7inches
Volume = 103.823 cubic inches
Write the perimeter of the triangle as a simplified polynomial. Then factor the polynomial. The perimeter of the triangle is (Simplify your answer.)
Answer:
(x+5)(3x+1)
Step-by-step explanation:
Add all the sides together to get perimeter.
Then Factor once you are done adding.
You answer is (x+5)(3x+1)
The perimeter of the triangle as a simplified polynomial is (3x + 1)(x+5)
Perimeter of a triangleThe perimeter of a triangle is the sum of all the sides of the triangle.
According to the figure shown, the perimeter of the shape is given as:
P = 2x²+1 + 4x+4 + x²+12x
P =3x² + 16x + 5
Factorize
P =3x² + 15x + x+ 5
P = 3x(x + 5) + 1(x+5)
P = (3x + 1)(x+5)
Hence the perimeter of the triangle as a simplified polynomial is (3x + 1)(x+5)
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HELP ASAP!! ILL GIVE BRAINLIEST
Lola went into walmart and spent $22.30 on groceries. She had to pay an additional 7% for taxes. What was Lola's total before taxes?
PLEASE HELP ASAPPP
Answer:
$23.86 I believe, im a bit rusty lol
Step-by-step explanation:
Composite numbers are numbers greater than 1 that are not____.
10
A composite number is a positive integer. which is not prime (i.e., which has factors other than 1 and itself). The first few composite numbers (sometimes called "composites" for short) are 4, 6, 8, 9, 10, 12, 14, 15, 16, ... (OEIS A002808), whose prime decompositions are summarized in the following table.
10 = - 1/4x +12
Answer pls
Answer: x = 8
Step-by-step explanation:
Answer:
x=8
Step-by-step explanation:
10= -1/4x+12
move the 12 to the other side
10-12= -1/4x
-2= -1/4x
divide -1/4 by both sides
8=x
100 POINTS AND BRAINLIEST!!!!!!!!!!!!!
Which city-state is considered the birthplace of the Renaissance?
Milan
Venice
Rome
Florence
Answer: I think its florence
Match each equation with its solution...I dont get this
Answer:
go to demos.com (calculator) trust me amd type the equation in as so ex: e+ 3/8 = 2 type it in as 2- 3/8 then you'll see the little fraction number by your answer sometimes youll have to press that
how do i solve 3yi(6- 7yi )
Answer:
18yi+ 21y^2
Step-by-step explanation:
answer 18 yi+21y2
step by step
factor 4a^2-b^2-2a+b
Answer:Equation at the end of step 1
STEP
2
:
4a2 - b2
Simplify ————————
2a - b
Trying to factor as a Difference of Squares:
2.1 Factoring: 4a2 - b2
Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)
Proof : (A+B) • (A-B) =
A2 - AB + BA - B2 =
A2 - AB + AB - B2 =
A2 - B2
Note : AB = BA is the commutative property of multiplication.
Note : - AB + AB equals zero and is therefore eliminated from the expression.
Check : 4 is the square of 2
Check : a2 is the square of a1
Check : b2 is the square of b1
Factorization is : (2a + b) • (2a - b)
Canceling Out :
2.2 Cancel out (2a - b) which appears on both sides of the fraction line.
Final result :
2a + b
Step-by-step explanation:
I need help!!! BADLY
Answer:
118 degrees
Step-by-step explanation:
Opposite angles always have the same angle measure.
What is the image point of (0,8) after a translation right 3
units and down 5 units
Answer:
3,3
Step-by-step explanation:
moving right changes x (0) by adding 3 to equal 3
moving down changes y (8) by subtracting 5 to get 3
Factorise the following:
a) x + 3x - 4
b) x - 2x - 3
c) x + 2x - 8
100 POINTS AND BRAINLIEST
What is the rule for the function that is graphed?
y = 2 x + 2
y = 3 x + 2
y = 2 x
y = x – 2
Answer:
Y=2x+2
and tbh it's simple for most people
Step-by-step explanation:
Hope it helps
Answer:
y = 2 x + 2
Step-by-step explanation:
I did the assignment, so I hope it helps (A like helps me if you have time)
I need help with Geometrey
Answer:
B
Step-by-step explanation:
LM is the "average" of AB and CD
AB = 45
DC = 61
LM = (48 + 61)/2
LM = 109
LM = 54.5
! Angle Measurement of Polygons !
~Help my brainless self-~
Answer:
b) 123
Step-by-step explanation:
Can someone help plz
Which phrase best describes a certificate of deposit?
A. An account in which money must stay deposited for a specific
amount of time
B. An account that features an interest rate that varies according to
changes in the market
C. Money that is lent with the expectation that it will be paid back
later, often with interest
D. An account that pays interest but cannot be used in conjunction
with checks or debit cards
Answer:
An account in which money must stay deposited for a certain amount of time.
Step-by-step explanation:
The account in which money must stay deposited for a certain amount of time. is the correct phrase describing about the certificate of deposit. Hence, option A. is correct.
What is the deposit?A deposit is saving your fund in some risk free investment avenues for growing the value of money deposited over the period of time. The deposits can be in the form of cash deposits or any collateral deposits, depending upon the type of financial avenue.
The certificate of deposit is the legal document that is given by the financial institution or the deposit holder to the depositor of fund. It entails the total amount of deposit, the specified time period for which the fund is deposited, the interest rate, and the terms and conditions attached with such type of deposits.
Therefore, option A. is correct.
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$15,000 at 15% compounded annually for 5 years
A. $28,500.00
0
B. $30,170.36
C. $17.250.00
ОО
D. $26,250.45
Answer:
p=$15000
R=15%
t=5years
compound amount CI=?
Step-by-step explanation:
we have
CI=p(1+R/100)^t=$15000(1+15/100)^5=$15000×1/15^5=$30170.35The total amount of $15,000 at 15% compounded annually for 5 years will be $30,170.36 so option (B) is correct.
What is compound interest?Compound interest is applicable when there will be a change in principle amount after the given time period.
The rate at which compound interest accrues depends on the frequency of compounding.
For instance, if you offer someone $500 at a rate of 10% annually, $500 will be considered your principal sum. After a year, the interest will be $50, making the principle amount $550. Moving forward, the interest will be $550 rather than $500.
Given
Principle amount = $15000
Rate of interest = 15%
The time period T = 5 years.
Compound interest formula
A = P [tex][ 1 + R/100 ]^{T}[/tex]
A = 15000 [tex][ 1 + 15/100 ]^{5}[/tex]
A = $30,170.36 hence, the total amount after 5 year will be $30,170.36.
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how do you solve this equation?
Answer:
[tex]5 \sqrt{2} [/tex]
= 7.071067812
Step-by-step explanation:
hope this helps
Is it a polynomial?
Answer:
It is a polynomial
Step-by-step explanation:
The given expression [tex] \boxed{represents} [/tex] a polynomial.
Type: monomial or cubic
Degree: 3
Kelly makes $500 a week selling cars and $200 per car she sells. What is the slope in terms of the problem?
Answer:
y=200x+500
Step-by-step explanation:
Kelly gets a fixed pay of $500 and also $200 for every car she sells
500 is the constant and 200 is the linear earning
the linear equation formula is y=mx+b
substitute your numbers in and you get:
y=200x+500
Factor the following binomial using the difference of squares?
(49x^2 – 9)
What is the distance between (2, 5) and (2,-5) on the coordinate plane
Answer:
10
Step-by-step explanation:
When you find the distance, you just add both of the numbers as if they were in absolute value 5+|-5|
so then since the x values are the same, you would go up/down 10 spaces on the Y-axis
Answer:
10 units
Step-by-step explanation:
Use the distance formula:
[tex]\sqrt{ (x_{2} - x_{1} )^2 -(y_{2} - y_{1} )^2[/tex]
Plug in values:
[tex]\sqrt{ (-5-5 )^2 -(2-2 )^2[/tex]
[tex]\sqrt 100[/tex]
=10 units
Use the information below to answer the following questions.
Find the slope and initial value of the graph below. Then write the equation of the line.What is the initial value (y-intercept)
2/5 of 2/3
What’s the answer to this? I’m failing math and I kinda forgot how to do fractions lol
Answer:
4/15 is your answer my friend
Step-by-step explanation:
Answer:
when the equation says of, all you need to do is multiply the two numbers, so the answer is 4/15
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11 12 c 16 18 if the mean is 12, which number could c be?
Answer:
c = 14
Step-by-step explanation:
hope this helps
