Work Shown:
n = a number, aka a placeholder for a number
3n = triple a number
3n-4 = four less than triple a number
So whatever n is, we multiply by 3 and then subtract off 4.
As an example, if n = 12, then 3n-4 = 3*12-4 = 36-4 = 32.
HELP ILL GIVE U BRAINLIEST
Answer:
-6 33/40
Step-by-step explanation:
[tex]2\frac{5}{8} = 2.625\\-2\frac{3}{5} = 2.6\\\\2.625 *-2.6 = -6.825\\\\-6.825 = -6\frac{33}{40}[/tex]
express the ratio 7day to 6weeks as a decimal fraction
Answer:
6 weeks=6*7 days=42days
7/42 =1/6 =0.16667
OR
7 days=1 week
therefore 1/6=0.16667
Note that both must be in the same unit.
convert 72° into grades.
Answer:
[tex]72in \: grades = > 1degree = \frac{10}{9} \times 72 \\ 72degree = \frac{10}{9} \times 72grades \\ 7degre = 80grades \\ thank \: you[/tex]
-3 find the value. -3 ( 2 ) ² x (4)
pls tell the answer step by step pls
(-2/3)^(-2) × x × (3/4)-3
(-3/2)^2 × x ×(4/3)^3
-3/2×-3/2×4/3×4/3×4/3×x
= 16/3 × x
= 16x/3
Must click thanks and mark brainliest
Date: Pages The recent price of a car is Rs. 10.00,000: If its price reduces by to1 yearly after how many year its price will be Rs 7, 29,000?
Answer:
729000 year it's price will Rs 729000
Someone help please
Answer:
c
Step-by-step explanation:
62.5 = 10(b)^2
62.5÷10 = b^2
6.25 = b^2
square root 6.25 and b^2
the answer is 2.5
In a large restaurant, an average of 3 out of every 5 customers ask for water with their meal. A random sample of 10 customers is selected. Find the probability that exactly 6 ask for water with their meal. Let X be the random variable that represents the number of these customers who ask for water.
Answer:
please mark me brainlist
Step-by-step explanation:
a) Let X be the random variable the number of customers asking for water.
X ~B(10,0.6)
= P(X = 6) =( 0.6)6 ( 0.4)4 10!/6 !*4!
= 0.2508
Y ~B(10,0.4)
= P(Y = 4)=( 0.6)6 ( 0.4)4 10!/6 !*4!
= 0.2508
The probability that exactly 6 ask for water with their meal is calculated by binomial distribution and the value is P ( x = 6 ) = 25.08 %
What is a Binomial Distribution?
The binomial distribution is a type of probability distribution that predicts the likelihood of obtaining one of two outcomes given a set of inputs. It summarizes the number of tries where each trial has the equal chance of producing the same result.
The formula for Binomial Distribution is given by
P ( x ) = [ n! / ( n - x )! x! ] pˣqⁿ⁻ˣ
where
n = number of trials
x = number of successes
p = probability of getting a success in one trial
q = probability of getting a failure in one trial
q = 1 - p
Given data ,
Let the probability that exactly 6 ask for water with their meal be P ( x = 6 )
Now , an average of 3 out of every 5 customers ask for water with their meal
So , the probability of getting a success p = 3/5 = 0.6
The probability of getting a failure q = 1 - p = 0.4
The number of trials = 10
The number of successes x = 6
So ,
Probability that exactly 6 ask for water with their meal be P ( x = 6 ) is
P ( x ) = [ n! / ( n - x )! x! ] pˣqⁿ⁻ˣ
Substituting the values in the equation , we get
P ( x = 6 ) = [ 10! / ( 4 )! 6! ] ( 0.6 )⁶( 0.4 )⁴
On simplifying the equation , we get
P ( x = 6 ) = 0.2508
P ( x = 6 ) = 25.08 %
Therefore, the value of P ( x = 6 ) is 25.08 %
Hence , probability that exactly 6 asks for water is 25.08 %
To learn more about binomial distribution click :
https://brainly.com/question/29350029
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what is 3.01 as a mixed mber
Answer:
3 1/100
Step-by-step explanation:
This is the answer because a mixed number is a fraction in it's simplest form.
is three a solution of z^2 +1=4+3z?
Answer:
no
Step-by-step explanation:
z^2 +1=4+3z
Substitute into the equation and see if it is true
3^2 +1 = 4+3(3)
9+1 = 4+9
10 = 13
This is not a true statement so this is not a solution
Write 1.61 as a mixed number and as an improper fraction.
Do not try to simplify your answers.
mixed number:
improper fraction: |
Answer:
the answers would be 1 61/100 and 161/100
Solve for x.
3x + 2
2x + 6
x = [?]
Answer:
4
Step-by-step explanation:
Im assuming you mean the first and second equation equal each other:
3x+2=2x+6
x=4
Please help
Solve the system of equations shown below.
Answer:
(6, 4 )
Step-by-step explanation:
Given the 2 equations
2x - 6y = - 12 → (1)
x + 2y = 14 → (2)
Multiplying (2) by - 2 and adding to (1) will eliminate x
- 2x - 4y = - 28 → (3)
Add (1) and (3) term by term to eliminate x
- 10y = - 40 ( divide both sides by - 10 )
y = 4
Substitute y = 4 into either of the 2 equations and solve for x
Substituting into (1)
2x - 6(4) = - 12
2x - 24 = - 12 ( add 24 to both sides )
2x = 12 ( divide both sides by 2 )
x = 6
solution is (6, 4 )
2x+6=3x+9-3 solve for x
Answer:
x=0
Step-by-step explanation:
2x-3x=9-3-6
-x=0
x=0
Answer:
x = 0
Step-by-step explanation:
Given
2x + 6 = 3x + 9 - 3 , that is
2x + 6 = 3x + 6 ( subtract 2x from both sides )
6 = x + 6 ( subtract 6 from both sides )
0 = x
Help anyone can help me do this question,I will mark brainlest.
Answer:
Sides = 3.2
Diagonals = 4.5
Shape = Square
Step-by-step explanation:
a) i) Distance from P to Q= 3.162278 which is approx 3.2.
So to calculate your answer you use the distance formula. The formula is the square root of (x2 - x1) + (y2 - y1).
So all sides of the shape have a length of 3.2 because the shape is a square.
DIAGONALS:
QS = 4.472136 approx 4.5
For:
(X1, Y1) = (-3, -2)
(X2, Y2) = (-1, 2)
We use the same formula for distance.
B) The shape is a square
I REALLY HOPE THIS HELPED
1. PLEASEE HELP!! Find the slant height of the cone
13 m
11 m
17 m
15 m
Rewrite the expression using positive exponents
1. 1/9x^-2y^-1
2. a^-5*a^-8
Answer:
Property : a^-b = 1/a^b
Using this property, we can rewrite the expression using positive exponents :
[tex]1. \frac{1}{9}*x^{-2} *y^{-1} =\frac{1}{9}\frac{1}{x^{2} } \frac{1}{y} =\frac{1}{9x^{2} y} \\2. a^{-5} a^{-8} =\frac{1}{a^{5}a^{8} } =\frac{1}{a^{13} }[/tex]
Mr.Swanson drove 150 miles in 4 hours how many miles will he drive in 1 hour
Answer:
37.5 miles
Step-by-step explanation:
Distance covered in 4 hours = 150 miles
Distance covered in 1 hour = 150/4 = 37.5 miles
lf y 1/4 · when x=5, find y when x=7. given that y varies directly with x.
y=
Answer:
y= 0.35
Step-by-step explanation:
y 1/4
when x=5,
find y=? when x=7.
given that y varies directly with x.
y = kx
Where k is the constant of proportionality
k= y/x
k= (1/4)÷ 5
k= 0.05
y= kx
y= (0.05)(7)
y= 0.35
I Hope this will helpful...
An isosceles triangle has one angle of 30 degrees. Calculate the possible sizes of the other 2 angles
Answer:
75 and 75
Step-by-step explanation:
Answer:
Hello,
Step-by-step explanation:
2 solutions:
30° is angle of the base: other angle of the base is 30° and the main angle is 180°-30°-30°=120°30° is the main angle, angles of the base are (180°-30°)/2=75° and 75°.Very quick definition: What do you call the relation between two points that have one or more points in between them? For example, in a square ABCD, A and C would have B in between and in a pentagon VWXYZ, V and X would have W in between them and V and Y would have both W and X between. So basically like non consecutive points? Please tell me if I make no sense I honestly don't know how to word it :P
Answer:
Step-by-step explanation:
Well believe it or not, that is not a simple question. Just look at what you left us to define. Your talking (for example) about a square and wondering what the vertex of B is called (other than a vertex.)
I think vertex is the only thing you can call B. But then there's a problem. What do you call the points on a segment? ___________? There are endpoints, but what's between those endpoints? I think you would just give them letter names and call them points. A point is dimensionless and there an infinite number of them in a segment.
Phew!!!
answer
answer
asap
pls
Answer:
true
Step-by-step explanation:
Answer:
true
Step-by-step explanation:
An integer can be written as a fraction by giving it a denominator of one
The system of linear equations x – y + 2 = 0 and 2x + y -14 = 0
Answer:
(4, 6 )
Step-by-step explanation:
Given the equations
x - y + 2 = 0 ( subtract - y + 2 from both sides )
x = y - 2 → (1)
2x + y - 14 = 0 → (2)
Substitute x = y - 2 into (2)
2(y - 2) + y - 14 = 0 ← distribute and simplify left side
2y - 4 + y - 14 = 0
3y - 18 = 0 ( add 18 to both sides )
3y = 18 ( divide both sides by 3 )
y = 6
Substitute y = 6 into (1) for corresponding value of x
x = 6 - 2 = 4
solution is (4, 6 )
3x^2+5x^2+3x+1=(3x-1)(x^2+A)+B
Answer: If the question is to solve for A: A= [tex]\frac{15x+1-B}{3x-1}[/tex]
If the question is to solve for B: B= 15x+1-3xA+A
Step-by-step explanation:
A: Move terms to the left.
B: Simplify both sides.
Answer:
a=8x^2+3x+1-b/3x-1 -x^2; xdoes not equal 1/3
Step-by-step explanation:
hope this helps
a b c or d? pls help out thx
Answer: I'm very sure the answer is B
Step-by-step explanation:
If the rocket is going straight up and it's measuring the height and time in seconds it should be at a slight curve but maintaining it's straight curve up making it a linear.
Can you please factor the problems below and explain/show all your steps. I will be attaching a photo with the problems as well in case they are more understandable on there. Also if you can please explain how you used the key concepts from the photo in your work if you used them.
Factor: 2a^3 + 4a^2 + 8a
Factor: 6y^4 - 294y^2
Factor: 5x^2 + 50x +125
---------------------------------------
To factor each expression, we apply the given concepts, that is, greatest common factor, difference of squares and perfect squares.
---------------------------------------
Expression 1:
The expression is:
[tex]2a^3 + 4a^2 + 8a[/tex]
First, we find the gcf of the numbers 2, 4 and 8, which is 2.
Of the exponents, the gcf between 3, 2 and 1 is 1, so:
[tex]2a^3 + 4a^2 + 8a = 2a(\frac{2a^3}{2a} + \frac{4a^2}{2a} + \frac{8a}{2a}) = 2a(a^2 + 2a + 4)[/tex]
---------------------------------------
Expression 2:
The expression is:
[tex]6y^4 - 294y^2[/tex]
The gcf of 6 and 294 is 6.
The gcf of the exponents 2 and 4 is 4.
Thus:
[tex]6y^4 - 294y^2 = 6y^2(\frac{6y^4}{6y^2} - \frac{294y^2}{6y^2}) = 6y^2(y^2 - 49)[/tex]
Then, applying the difference of squares:
[tex]y^2 - 49 = (y - 7)(y + 7)[/tex]
Thus, the factored expression is:
[tex]6y^2(y^2 - 49) = 6y^2(y - 7)(y + 7)[/tex]
---------------------------------------
Expression 3:
The expression is:
[tex]5x^2 + 50x + 125[/tex]
The gcf of the coefficients, 5, 50 and 125 is 5, so:
[tex]5(\frac{5x^2}{5} + \frac{50x}{5} + \frac{125}{5}) = 5(x^2 + 10x + 25)[/tex]
Applying the perfect square, we get that:
[tex]x^2 + 10x + 25 = (x + 5)^2[/tex]
Tus, the factored expression is:
[tex]5(x^2 + 10x + 25) = 5(x+5)^2[/tex]
A similar question is given at https://brainly.com/question/11930822
A: m_1 = m_4
B: m_2 = m_3
C: m_1 + m_4 = 180°
D: m_2 + m23 = 180°
Answer:
A
Step-by-step explanation:
1.4 (x + 5) + 1.6x = 52
Simplify <3
Select all sets in which the number
HELP PLZZZZZZZZ
8/9
is an element.
A. rational numbers
B. natural numbers
C. whole numbers
D. irrational numbers
E. real numbers
F. integers
Answer:
A
E
Step-by-step explanation:
a rational number can be expressed as fraction. well, that is what the number 8/9 is.
so, A is a correct option.
as such it is automatically also a member of the real numbers (which is a superset of rational numbers). so, E is a correct option.
all other options are wrong.
8/9 is not a natural number (1, 2, 3, 4, ...).
it is not a whole number (0, 1, 2, 3, 4, ...).
it is not an integer (... , -2, -1, 0, 1, 2, 3, ...).
and as it is a rational number, it is automatically not an irrational number.
Nike is offering a 30% discount on shirts. A shirt at the store has an original cost of $25. What is the cost of the shirt, in dollars, after the discount
Answer:
$17.5
Step-by-step explanation:
original price of shirt=$25
discount on shirt=30%
discount on shirt in $=$25*30%
discount on shirt=$7.5
cost of shirt after discount=origanl price-discount
=$25-$7.5
=$17.5
If you open an already created budget Excel spreadsheet, what is one feature it has when calculating amounts?
A) There isn't an already created budget Excel spreadsheet.
B) Formulas are already included that will calculate the totals for you.
C) You need to create formulas by yourself to calculate the totals.
D) You can use a calculator to add the numbers.
Formulas are already included that will calculate the totals for you.
