let the last number be x
we know,
[tex] \boxed{mean = \frac{sum \: \: of \: \: all \: \: observations}{number \: \: of \: \: observations} }[/tex]
So,
[tex] \hookrightarrow \: 8 = \dfrac{22 + x}{4} [/tex]
[tex] \hookrightarrow \: 8 \times 4 = 22 + x[/tex]
[tex] \hookrightarrow \: 32 = 22 + x[/tex]
[tex] \hookrightarrow \: x = 32 - 22[/tex]
[tex] \hookrightarrow \: x = 10[/tex]
therefore, the last number is 10.
Solve the equation 3/4x=9
Answer:
3/4x = 9
4x = 3/9
4x = 1/3
x = 1/12
Answer:
x= 12
Step-by-step explanation:
[tex](\frac{4}{3})(\frac{3}{4}x)[/tex]= [tex]9\frac{4}{3}[/tex]
X= 12
Please mark me the Brainliest!
Help pls I really need this
Answer:
{2 , 4} is the answer of this question.
Which is equivalent to 1/4?
(equivalent means equal)
04/12
O 4/16
03/15
O 25/90
I need help on this pre-calculus function about domain and range.
Answer:
7
Step-by-step explanation:
Factor 18p – 36 to identify the equivalent expressions.
Choose 2 answers:
A
3(9p – 12)
B
9(2p – 4p)
2(9p – 18)
18(p - 2)
Answer:
DandC
Step-by-step explanation:
Which term would be combined with the constant +2 in the expression -8x^2 + 3x +2?
Answer:
102(5x+2y)+3x+6y−10
Step-by-step explanation:
Terms is each part of an algebraic expression separated by a plus or minus sign.
As 2(5x +2y ) , 3x , 6y2(5x+2y),3x,6y and 1010 .
Factor is a product of two or more numbers, algebraic variables or algebraic expressions . 2(5x +2y )2(5x+2y) has two factors 22 and (5x +2y )(5x+2y) .
3x3x has two factors 33 and xx .
6y6y has two factors 66 and yy .
-10−10 has one factors
Coefficient is the numerical factor of a term that contains a variable.
2(5x +2y ) the factor is 22 .
3x3x the factor is 33 .
6x6x the factor is 66 .
-10−10 the factor is -10−10 .
Variable is a symbol, usually a letter, used to represent a number.
As xx and yy
Constant is a term without a variable.
As -10−10 .
I WILL GIVE CORRECT ANSWER BRAINLIEST!
Each ride at the carnival requires 4 tickets to ride. Kate purchased 20 tickets and has
already ridden some rides.
Kate writes the expression 20 – 4r and Brian writes the expression 4(5 – 1) to
determine how many tickets Kate has left after riding some rides. Both expressions
are correct
Drag each description to explain each part of both expressions.
Step-by-step explanation:
In Kate's equation, 20 is the total number of tickets, 4 is number of tickets per ride, r is number of rides already ridden, and 4r is the number of tickets used
in Brian's equation, 5 is total number of rides Katie can ride and 5 - r is the number of rides left to ride
Answer:
Step-by-step explanation: I just did it
0.8 divided 11.08 plz give me answer
Answer: 0.8/11.08= 0.07220216606 or .0.7
Hope this helps!
To which set of numbers does −38 belong?
integers
irrational numbers
natural numbers
whole numbers
Answer:
-38 is an integer
Step-by-step explanation:
An integer is a whole-valued positive or negative number or 0. They are generated from the set of counting numbers 1, 2, 3,… and the operation of subtraction. So -38 is an integer.
hope this this helps
:)
Find the simple interest.
Principal
Rate
Time
$6000
20%
4 1/2 years
Answer:
$5,400. 20% of 6,000 = 1,200. 1,200 * 4 1/2 (4.5) = $5,400 (bonus: 6,000 + 5,400 = $11,400) hope this helps
Step-by-step explanation:
- Zombie
If a student didnt turn an assignment in on the 27th of august, and the teacher deducted 10 percent each day. How much credit would they get if they turned it in on the 1st of september?
Answer:
i have no idea
Step-by-step explanation:
Answer:
credit of 60= lost 40 points
Step-by-step explanation:
31-27= 4
decimal expansion for
1). 10 / 11
2). 1/9
5
3). 1 -
27
Answer:
3
Step-by-step explanation:
1-27!!!!!!!!!!!!!!!!!
what is BE in the figure
Answer:
I honestly don't understand what is being asked
Answer:
25
Step-by-step explanation:
B is second in the English alphabet and E is on the 5th positions on this same English alphabet
For the function f defined by f(x) = 3x^2 + 3x + 4, find the following values.
(a) f(-9) =
(Simplify your answer.)
[tex] \large \mathfrak{Solution : }[/tex]
let's solve for f(-9) :
3(-9)² + (3 × -9) + 4(3 × 81) - 27 + 4243 - 23220Step-by-step explanation:
220that's all
thank you
5. Is this function one-to-one? How do you know?
6. What is f(-1)?
7. What is f(2)?
8. What is f(0)?
Answer:
6. - f
7. 2 f
8. 0
Step-by-step explanation:
Too lazy to explain
solve it fasrltttttt
Answer:
answer::::: 9 . Is it true ?
someone help me with this
WILL MARK AS BRAINLIST (or whatever you call it)
30 points for it
(Ignore the bottom ones that r hard to see)
Answer:
1) 11/13
2) -7/8
3) -3/9
4) 7/11
7) 5/6
8) 2/3
9) -1
10) -1/7
Step-by-step explanation:
simplifying
7) 10/12 = 5/6
8) 4/6 = 2/3
9) -4/4 = -1
Can't see 5, 6, 11
Check all that apply
vertical angels must
A. be obtuse
B. be adjacent
C. have the same vertex
D. be congruent
Answer:
D. be congruent
Step-by-step explanation:
vertical angles are angles that are across from each other on intersecting lines and they are always congruent
Pierre travels by plane from Paris to Singapore. The plane leaves Paris at 16 35 on Thursday and arrives in Singapore 13 hours and 45 minutes later. The local time in Singapore is 6 hours ahead of the local time in Paris. Work out the day and time in Singapore when the plane arrives
Step-by-step explanation:
16:35 plus 6 hours to account for them being 6 hours ahead is 22:35 off the bat. we then add 13.75 hours which goes to Friday at 12:20 pm.
Trina ran 2 1/2 miles of Friday, 2 3/4 miles on Saturday and 3 mies on SUnday. The next week she ran the same amount. How far in miles did she run in two weeks?
Answer:
16 [tex]\frac{1}{2}[/tex] miles
Step-by-step explanation:
2 [tex]\frac{2}{4}[/tex] + 2 [tex]\frac{3}{4}[/tex] = 4 [tex]\frac{5}{4}[/tex] which equals 4 + 1 [tex]\frac{1}{4}[/tex] or 5 [tex]\frac{1}{4}[/tex]
5 [tex]\frac{1}{4}[/tex] + 3 = 8 [tex]\frac{1}{4}[/tex]
she ran 8 and one-quarter miles in the first week and if she ran the same amount the second week then we can add to get the answer:
8 [tex]\frac{1}{4}[/tex] + 8 [tex]\frac{1}{4}[/tex] = 16 [tex]\frac{2}{4}[/tex] or 16 [tex]\frac{1}{2}[/tex]
What is the solution to the equation -2(2x + 4) + 10 = 8x + 14?
A.
x = 3.5
B.
x = -1
C.
x = 1
D.
x = -3.5
[tex]-2(2x+4)+10=8x+14\\\\-4x-8+10=8x+14\\\\-4x-8x=14+8-10\\\\-12x=12 \ \ /:(-12)\\\\\huge\boxed{x=-1}[/tex]
Answer:
-1
Step-by-step explanation:
-2(2x + 4) + 10 = 8x + 14
-4x - 8 + 10 = 8x + 14
-4x + 2 = 8x + 14
-4x - 8x = 14 - 2
-12x = 12
x = -12/12
x = -1
Describe the transformation in words only for 4 please :)
Answer:
a rotation of 45° , this could be it
HELP
To make an international telephone call you need the code for the country you are calling. The codes for country A, country B, and C are three consecutive integers
whose sum is 84. Find the code for each country.
Answer:
27, 28, 29
Step-by-step explanation:
If you divide 84 by 3, the quotient will be in the middle of the three integers. We get 28 from dividing 84 by 3, therefore our string of numbers are 27, 28, and 29.
help plweaseeeee thanks
Answer:
first triangle (to left) b=8, second one c=17
Step-by-step explanation:
for the first triangle (one to the left) the hypotenuse is 9, so let's use the pythagorean formula.
A^2 + B^2 = C^2
^ ^ ^
^ ^ Hypotenuse
^ second side
first side
Substitute:
5^2 + b^2 = 9^2
SImplify:
25+b^2 = 81
Reduce:
b^2 = 64
Simplify:
b=8
In the second triangle, we are given 2 sides.
Let's do the same thing we did in the first one.
Givens:
A = 8
B = 15
Find:
C
Substitute:
8^2 + 15^2 = c^2
Simplify
64 + 225 = c^2
Reduce:
289 = c^2
Let's now square root both sides
square root of 289 is 17
so we are left with this:
c=17
Phew, you did it!
Hope this helped :))
6m+n m=8 and n=7 evaluate please help please
Answer:
55
Step-by-step explanation:
m=8
then 6x8=48
n=7
then 1x7 is 7
48+7=55
Answer:
55
Step-by-step explanation:
6m+n
6(8)+7=?
48 + 7= 55
Always multiply and divide first. Then addition and subtraction.
X=?
Missing angle=?
Answer: 132
X = 180 - 47 +1
x=132
Answer:
x = 67, 133 degrees
Step-by-step explanation:
2x - 1 + 47= 180
2x + 46 = 180
2x (+ 46 - 46) = 180 - 46
2x = 134
2x/2 = 134/2
x = 67
2x - 1
2(67) - 1
134 - 1
133 degrees
hello, this is my last attempt to get it right so if you can please help me
Answer:
138°
Step-by-step explanation:
x+115°=6x° [ being vertically opposite angle]
or, 115=6x - x
or, 115=5x
or, 115/5 =x
or, x=23
Then,
x+115°
= 23+115°
=138°
Mark me brainliest plz.
Hope it would be helpful for you
what is 640 divided by 20
Answer:
640/20 is 32
hope it's helpful
When the number 640 is divided by the number 20, the result is 32.
To divide 640 by 20, we perform long division or use the concept of division as the inverse of multiplication. By dividing 640 by 20, we are essentially finding how many times 20 can be evenly divided into 640.
On Dividing 640 by 20 yields a quotient of 32. This means that 20 can be divided into 640 exactly 32 times, without any remainder.
Thus, 640 divided by 20 is equal to 32. In simpler terms, if we distribute 640 items into 20 groups, each group will contain 32 items.
Learn more about Division here
https://brainly.com/question/2263644
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From the graph of the function, determine the domain and the range.
Domain: (-2, 0) (0,5] Range: (-2,0] [2, 4]
Domain: [-2, 4] Range: (-2, 0] [2, 4]
Domain:(-2, 0) (0, 4) Range: (-2,5]
Domain: (-2, 4] Range: (-2, 0] [2, 4)
Hey there again! :)
This function is a piecewise function and it's different from previous question.
As you may notice, the graphs are separated and some of coordinate points are not a part of domain and range. That's why we have separate domain and range.
First, let's consider that line graph. The one that contains (-2,0) and (0,-2).
Our domain is the set of all x-values. Only (-2,0) is a closed dot. We use [ ] for closed dot and ( ) for opened dot.
Hence, the first domain is [-2,0)
Next, we find the range of line graph or line segment.
Range is the set of all y-values. Hence, the first range is (-2,0]
We are not done yet! We have to find the second domain and range, which is a curve graph.
From the curve graph, our first point starts from (0,4) and ends at (5,4)
Since (0,4) is an opened dot and (5,4) is a closed dot.
Therefore, the second domain is (0,5]
For the range, the minimum point is (3,2) and maximum point is (0,4) and (5,4). Use the y-coordinate to find range.
Hence, the second range is [2,4}
Gathering Both Domain and Range
First Domain is [-2,0)First Range is (-2,0]Second Domain is (0,5]Second Range is [2,4]Combine both domains and ranges.
Hence, the domain is [-2,0] U (0,5] and the range is (-2,0] U [2,4] or The First Choice
Let me know if you have any questions!
Topic: Functions / Domain & Range
What do you mean by the value of function?
Answer:
The average value of the function over its domain
