Answer:
Greater than 20Step-by-step explanation:
Since mean is the average number of students, the formula for calculating the mean attendance of students is expressed as;
Mean = total number of student/sample size
[tex]\overline x = \frac{\sum Xi}{N}[/tex]
Given mean = 20
Since the question talks about the first four meetings, the sample size = 4
[tex]20 = \frac{\sum Xi}{4}\\ \\\sum Xi = 20 * 4\\\\\sum Xi = 80[/tex]
Since the sum total of students for the first four meetings is 80, hence the number of students who attended the meeting is greater than 20
19.86 - 4.94 please help i don’t u understand this
Answer:
14.92
Step-by-step explanation:
you basically add them. just like normal numbers but add the decimal point.
Answer:
14.92
You need to do like this:
19.86
-4.94
--------
14.92
I need help on everything
9. If H is the midpoint of GI, find GH.
5x + 2
9x - 10
FIND GH
I inserted the graph
Answer:
GH = 17
Step-by-step explanation:
Given that H is the midpoint of segment GI, and GH = 5x + 2, HI = 9x - 10, GH is congruent to HI. This implies GH = HI.
Therefore:
[tex] GH = HI [/tex], which will give us the following equation:
[tex] 5x + 2 = 9x - 10 [/tex]
Solve for x
[tex] 5x + 2 - 9x = 9x - 10 - 9x [/tex] (subtracting 9x from each side)
[tex] -4x + 2 = -10 [/tex]
[tex] -4x + 2 - 2 = -10 - 2 [/tex] (subtracting 2 from each side)
[tex] -4x = -12 [/tex]
[tex] \frac{-4x}{-4} = \frac{-12}{-4} [/tex] (dividing both sides by -4)
[tex] x = 3 [/tex]
GH = 5x + 2
Plug in the value of x
GH = 5(3) + 2 = 15 + 2
GH = 17
Answer:17
Step-by-step explanation: trust me bro
Against the Lady Huskies, the Lady Bears scored 65 points on 30 field goals (2- and 3-point goals). How many 2-point goals and how many 3-point goals did they make?
Answer:
The team scored 25 2-point goals and 5 3-point goals
Step-by-step explanation:
Here, we are interested in calculating the number of 3 points and 2 points goals scored by the team
let the number of two point goals be x while the number of three point goals be y
The total goal number is 30;
Hence;
x + y = 30 ••••••(i)
Also, the total point is 65
point of two points goals is 2 * x = 2x
points of three point goal is 3 * y = 3y
Adding both;
2x + 3y = 65 ••••••(ii)
So we have two equations to solve simultaneously.
From 1, x = 30 -y
Now substitute this into ii
2(30-y) + 3y = 65
60 -2y + 3y = 65
y = 65 -60
y = 5
x = 30 - y
x = 30-5 = 25
k(t) = 13t – 2
k(3) =
Please help me with this one!! If the answer is correct I will mark it the best answer!
Anna and Jon were asked to solve the following inequality:
1- Jon was correct. And did not flip the inequality.
2- Anne was correct. Jon flip the inequality.
3- anne was correct Jon did not perform the inverse operation correctly
4- Jon was correct. Anne did not perform the inverse operation correctly
Answer:
Number two
Step-by-step explanation:
it took the test
Write 0.54 as a fraction in simplest form.
Answer:
Convert to a simplified fraction by placing the numbers to the right of the decimal over 100 .
Reduce the fraction.
27 /50
Step-by-step explanation:
Answer:
27/50
Step-by-step explanation:
Take 54 and divide by 100 (54/100). The GCD of 54 is 2. When we divide the numerator and the denominator by 2 we get 27/50
if sugarless gum sells at 2 pieces for $.25, then what would 10 pieces cost?
Answer:
Does this help
Step-by-step explanation:
10 pieces would cost $30
Mabey I am wrong
HELP ASAP | A bird (B) is spotted flying 5,000 feet from a tree (T). An observer (0) spots the bird (B) at a distance of 13,000 feet. What is the angle of
depression from the bird (B) to the observer (0)? (4 points)
T
5,000
00
13,000
o
a
22.70°
44.62
C
67.38°
d
68.96º
Answer:
[tex]x=67.38^\circ[/tex]
Step-by-step explanation:
Use trigonometry
Recall that cos(x)=adjacent side/hypotenuse
You can remember this with SohCahToa
Also remember that if cos(x)=y then [tex]cos^{-1}(y)=x[/tex]
In this case, we know the adjacent side and hypotonous
Adjacent side=5000
Hypotenuse=13000
Therefore
[tex]Cos(x)=\frac{5000}{13000}=\frac{5}{13}[/tex]
Now to solve for x, take the inverse cosine
[tex]cos^{-1}(\frac{5}{13})=x=67.38^\circ[/tex]
Answer:
x=67.38
Step-by-step explanation:
I took the quiz and got it correct!
What is the equation for the line that goes through the point (-3,-1) and has the slope of -1/3
[tex]y = {x}^{2} + 4x + 3[/tex]
A resort hotel in Scottsdale, AZ charges $1800 to rent a reception hall, plus $58 per person for dinner and open bar. The reception hall can accommodate up to 200 people. a) Write a function, T, to represent the total cost to rent the reception hall if n people attend the reception.
Answer:
T(n) = 1800 + 58n
Step-by-step explanation:
Rent reception = $1800
Charge per person = $58
Number of person who attend reception = n
Total cost = fixed cost + variable cost
Fixed cost = 1800
Variable cost = 58n
Total cost = T(n)
Total cost = fixed cost + variable cost
T(n) = 1800 + 58n
If the relationship is proportional, what is the missing value from the table? x / y 8 / 6 16 / ? 24 / 18 answers under here! 8,a 9,b 12,c 14,d ADD ANSWER
The correct option is Option C: the missing value is 12.
What is the directly propotional?In directly proportionality, if one quantity increases then the other quantity also increases. if one quantity decreases then other quantity also decreases.
x ∝ y
⇒ x= ky
where k is proportionality constant.
Here the value x1, y1 is given by
x1=8
y1=6
as x1 is directly proportional to y1.
x1 = ky1
⇒8=6k
⇒k= 8/6
⇒k =4/3
If x3= 24 then x3 =ky3
⇒24=(4/3)y3
⇒y3= 24/(4/3)= 18 which is true from the table
Then given in the question x2=16
As x2 is directly proportional to y2.
x2 ∝ y2
⇒ x2 =ky2
where k= 4/3
⇒ 16 = (4/3)y2
⇒ y2= 16/(4/3)
⇒y2= 16*3/4
⇒y2= 12
The correct option is Option C: the missing value is 12.
Learn more about proportionality
here: https://brainly.com/question/24868934
#SPJ2
Mr. mehta is trying to subtracting one polynomial from another polynomial, what must he do first?
The first thing he has to do is take that "minus" sign through the parentheses containing the second polynomial. Some students find it helpful to put a " 1 " in front of the parentheses, to help them keep track of the minus sign. Here's what the subtraction looks like, when working horizontally.
What is 5 to the power of -3, show how you did it
Answer:5 to the power of -3 is 5 times-5=-25 times -25= 125 times -5 = -625
Step-by-step explanation:
|6|+|-2| what's the answer cuz ion know
Answer:
8
Step-by-step explanation:
6|+|−2|
=6+|−2|
=6+2
=8
What is 4(2x+7)=12-2(10-2x)
Answer:
x=-9
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
Step 2: Subtract 4x from both sides.
Step 4: Divide both sides by 4.
find angle PBH and find the value of c
Answer:
Vertically opposite angles are angles that are formed opposite of each other when two lines intersect, and they are always equal.
Thus, Angle PBH is 118 degrees.
-----------------------------------------------
Finding the value of c:
[tex]3c+94=118[/tex]
Subtract 94 from both sides:
[tex]c+94-94=118-94[/tex]
[tex]3c=24[/tex]
Divide both sides by 3:
[tex]\frac{3c}{3}=\frac{24}{3}[/tex]
[tex]c=8[/tex]
What is the answer to this thing?
Answer:
area=108
Step-by-step explanation:
length times width
8x6=48
10x4=40
5x4=20
---------
Add them all together 48+40+20 =108
I will give brainliest!!!!
Answer two questions about Equations AAA and BBB:
A.3x-1=7
B.3x=8
1) How can we get Equation BBB from Equation AAA?
Choose 1 answer:
(Choice A)
A
Multiply/divide both sides by the same non-zero constant
(Choice B)
B
Multiply/divide both sides by the same variable expression
(Choice C)
C
Add/subtract the same quantity to/from both sides
(Choice D)
D
Add/subtract a quantity to/from only one side
2) Based on the previous answer, are the equations equivalent? In other words, do they have the same solution?
Choose 1 answer:
(Choice A)
A
Yes
(Choice B)
B
No
Answer:
1. C
2. A
Step-by-step explanation:
Step 1: Write equation
3x - 1 = 7
3x = 8
Step 2: Use 1st equation and solve
3x = 8
x = 8/3
Step 3: Use 2nd equation and solve
3x = 8
x = 8/3
Both equations have equivalent solutions and the 2nd equation is the simplified version of the 1st.
For each equation, state whether there is no solution, one solution, or infinitely many solution. Explain your reasoning. A: 3x - 6 = 3(x - 1) - 3 B: 2x + 7 = - 2x + 7 C: 2x + 7 = 2x
Answer:
A: Infinite
B: One
C: No Solution
Step-by-step explanation:
Equation A:[tex]3x-6=3(x-1)-3\\\\3x-6=3x-3-3\\\\\boxed{3x-6=3x-6}[/tex]The sides are the same. This means that the equation has infinite solutions.
Equation B:[tex]2x+7=-2x+7\\\\2x+7-7=-2x+7-7\\\\2x=-2x\\\\2x+2x=-2x+2x\\\\4x=0\\\\\frac{4x=0}{4}\\\\\boxed{x=0}[/tex]The equation has one solution.
Equation C:[tex]2x+7=2x\\\\2x-2x+7=2x-2x\\\\\boxed{7\neq 0}[/tex]
The final result is a contradiction. The equation has no solution.
If B is the midpoint of AC, and AC=8x-20, find BC.
Answer:
[tex]BC=26[/tex]
Step-by-step explanation:
Start with:
[tex]AB+BC=AC[/tex]
Since [tex]B[/tex] is the midpoint, we also know that:
[tex]AB=BC[/tex]
Knowing this, we can use a system of equations and substitute [tex]AB[/tex] for [tex]BC[/tex] in the equation we started with:
[tex]AB+AB=AC[/tex]
Let's identify our values:
[tex]AB=3x-1\\AC=8x-20[/tex]
Substitute:
[tex]3x-1+3x-1=8x-20[/tex]
Combine like terms:
[tex]6x-2=8x-20[/tex]
Add [tex]20[/tex] to both sides of the equation:
[tex]6x+18=8x[/tex]
Subtract [tex]6x[/tex] from both sides of the equation:
[tex]18=2x[/tex]
Divide by the coefficient of [tex]x[/tex], which is [tex]2.[/tex]
[tex]x=9[/tex]
Substitute [tex]9[/tex] into [tex]3x-1[/tex]
[tex]3(9)-1[/tex]
Solve:
[tex]AB=26[/tex]
Remember that [tex]AB=BC[/tex], thus:
[tex]BC=26[/tex]
The area of the star shaped surface of this block is 1.2m^2. The thickness of the block is 25cm. What is the volume of the block?
Answer:
volume = 0.30 m³
Step-by-step explanation:
GIVEN:
The area of the star shaped surface of this block is 1.2m^2.
The thickness of the block is 25cm.
FIND:
What is the volume of the block?
SOLUTION:
volume = area x length
where area = 1.2 m²; length = 0.25 m
plugin values into the formula:
volume = 1.2 m² x 0.25 m
= 0.30 m³
therefore, the volume of the star shaped block is 0.30 m³
Choose two statements that are true for this expression.
423 – 7x2 – 30 + 15
A. The term – 3 is a ratio.
B. The entire expression is a difference.
C. There are three terms.
D. There are four terms.
Answer:
Options (A) and (D).
Step-by-step explanation:
Given expression is,
4x³ - 7x² - [tex]\frac{30}{y}[/tex] + 15
Characteristics of the give expression ,
Option (A).
Third term [tex]-\frac{30}{y}[/tex] of the expression is in the form a ratio.
True.
Option (B).
Entire expression is a difference.
False.
Option (C).
There are three terms.
False.
Option (D).
There are four terms in the given expression.
True.
Therefore, Options (A) and (D) will be the correct options.
write .11111 as a fraction in simplest form.
Answer:
11111/100000
Step-by-step explanation:
Good luck
Which of the following is a polynomial?
A. 1 / +2
B. (*8 - 2)
(x4 +3)
C. A + x 4 + 16
D. x2 - 1
Answer: I really don't understand B. but i think the answer is C
how do you find the equation of a line
If a rocket travels at 30km/s then the distance traveled by it in one hour is _____ A. 1800 km B.1080 km C.108000 km D. 500 km
Answer: C
Step-by-step explanation:
30 km/s x 60 = 1800 (1 minute)
1800 x 60 = 10800 (1 hour)
Answer:
C. 108,000 km
Step-by-step explanation:
use distance = velocity x time
30 km x 3600 sec x 1 hr
sec 1 hr
= 108,000 km
x2 +__ x + 36 What should go in the blank?
It could be anything in reality. Do you need the zero's solved?Please specify the question properly.
ANS: 12,0,13
6x-3=2x-1 8 what’s x equal
Answer:
1/2
Step-by-step explanation:
Subtract 2x from both sides
Add 3 to both sides
Then divide both sides by 4
x = (1/2)
Solve for x. 7x−9<12 or 14x+8>11
Answer:
For 7x-9<12, the answer is x<3
For 14x+8>11, the answer is x>3/14
Step-by-step explanation: Isolate the variables by dividing each side by factors that do not contain the variable.
I hope this helps you out! :)
