I need help with this
Answer:
d
Step-by-step explanation:
Police estimate that 20% of drivers do not wear their seatbelts. The police set up a safety roadblock and stopping cars to check for seatbelt use. If the police team stops 30 cars during the first hour, what is the standard deviation?
If Police estimate that 20% of drivers do not wear their seatbelts. The police set up a safety roadblock and stopping cars to check for seatbelt use. If the police team stops 30 cars during the first hour, the standard deviation is 2.191.
How to find the standard deviation?Using this formula to find the Standard deviation
Standard deviation = √ Sample size × Estimated drivers × (1 - Estimated drivers)
Let plug in the formula
Standard deviation = √ 30 × 0.20 × (1- 0.20)
Standard deviation = √ 30 × 0.20 × 0.80
Standard deviation = √ 4.8
Standard deviation = 2.191
Therefore we can conclude that the standard deviation is 2.191.
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Yoshio has 3 pieces of fabric. Each piece of fabric is the same length. The total length of the pieces is 2 and 1/4 yards. What is the length of each piece of fabric?
In linear equation, Length of each piece of fabric is 3/2 yards.
What in mathematics is a linear equation?
A linear equation is a first-order (linear) term plus a constant in the algebraic form y=mx+b, where m is the slope and b is the y-intercept.
Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables.
Number of pieces of fabric = 3
Total length of a fabric = 2 1/4 yards
= 9/4 yards
Therefore,
Length of each piece of fabric = 9/4 ÷ 3
= 3/4 yards
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In the figure below, =m∠364°. Find m∠1, m∠2, and m∠4.
Answer:
m∠1 = 64
m∠2 = 117
m∠3 = 117
Step-by-step explanation:
m∠1 = 64
m∠2 = x+64 = 180
= x = 117
m∠2 = 117
m∠3 = 117
Triangle JKL has coordinates 42,-5), K-1,-3), and L-4, 5). Determine the
coordinates of the vertices of the image after each transformation
10. translation along the vector (-3,1)
J (2,-5) ---------->! (, )
K (-1, -3) --------> K', )
L (-4, 5) --------->"(, )
The vertices of the image after transformation is K(5,-2), L(-1,3) and M(4,-5)
What is a triangle called?A triangle is a 3-sided polygon that is occasionally (though not frequently) referred to as the trigon. There are three sides and three angles in every triangle, some of which may be the same.
What are the 3 sides of a triangle called?A right triangle's hypotenuse is its longest side, its "opposite" side is the one that faces a certain angle, and its "adjacent" side is the one that faces the angle in question.
According to the given question,
with respect to the mirror
the vertices of the image of the triangle is
J (2,-5) ---------->! (5,2)
K (-1, -3) --------> K'(-1,3 )
L (-4, 5) --------->"(4,-5 )
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If you add 21 to my number, multiply the result by 3, you will get 84 more than 2/3 of my number what is my number?
Step-by-step explanation:
x = my number
3(x + 21)
multiply sum of 21 and my number by 3
=
(2/3)x + 84
84 more than 2/3 of my number
3(x + 21) = (2/3)x + 84
9(x + 21) = 2x + 3×84 = 2x + 252
9x + 189 = 2x + 252
7x + 189 = 252
7x = 63
x = 9
my number is 9.
Hi if anyone can answer that would be great thanks!
The value of GL is 161.We can find by using supplementary angles.
What is supplementary angle with example?Supplementary angles are those angles that sum up to 180 degrees. For example angle 130° and angle 50° are supplementary angles because sum of 130° and 50° is equal to 180°.There are a total of two supplementary quantities and their units.
How do you find supplementary angles?The sum of two angles is equal to 180° then they are supplementary angles. Each of the angles is said to be a supplement of another angle. Hence we can determine the supplement of an angle by subtracting it from 180°.
Now
According to supplementary angles
GL + LK =180
GL =180- LK
GL = 180 -19
GL = 161
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in an experiment, what is the probability than even A occurs is 0.2 and the probability that event b occurs is 0.5
Answer: In an experiment, if the probability that event A occurs is 0.2 and the probability that event B occurs is 0.5, then the probability that either event A or event B (or both) will occur is the sum of their individual probabilities, which is 0.2 + 0.5 = 0.7.
It should be noted that the sum of the individual probabilities of two events is less than or equal to 1. If the sum of the probabilities is greater than 1, it means that the events are not mutually exclusive and that means that they can happen at the same time.
It's important to mention that the above answer is based on the assumption that events A and B are mutually exclusive events, which means that they cannot happen at the same time. If they are not mutually exclusive, the probability of both occurring at the same time would have to be calculated using the formula P(A and B) = P(A) * P(B|A) where P(A) is the probability of event A occurring and P(B|A) is the probability of event B occurring given that event A has already occurred.
Step-by-step explanation:
Answer the picture below
Jim spent a total of $125.15 for the 130 miles he traveled in one day at the $14.95 base fee.
what is equation ?A mathematical equation is a formula that connects two statements using the equal sign (=) to signify equivalence. A mathematical statement demonstrating the equality of two mathematical expressions is the definition of an equation in algebra. For instance, the variables 3x + 5 and 14 are separated by an equal sign in the equation 3x + 5 = 14. Mathematically, the connection between two phrases on either side of a letter is stated. The symbol doubles as the sole variable most of the time. for illustration, 2x - 4 = 2.
given
per mile the cost is $0.85
Base fee is 14.95
0.85x+14.95= 125.15
0.85x=125.15 - 14.95
0.85x = 110 . 92
x= 110 . 92 / 0.85
x= 130. 49
Jim spent a total of $125.15 for the 130 miles he traveled in one day at the $14.95 base fee.
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NEED SOMEOEN THAT KNOWS PRE CALC The endpoints of a diameter of a circle are (7,−4) and (−3,2).
What is the equation of the circle in standard form?
Enter your answer by filling in the boxes. Enter any fractions in simplified form.
(x-2)² + ( y + 1)² = 34 is the equation of the circle in standard form.
What is the short definition of a circle?
To put it simply, a circle is a spherical shape without any edges or line segments. In terms of geometry, it has the shape of a closed curve.
The circle's points are set apart from the center by a predetermined amount.
The endpoints of the diameter (7,−4) and (−3,2)
the center of the circle is the midpoint of the diameter.
So, the coordinates of the center
(h,k) = ( 7 + (-3)/2 , -4 +2/2)
= ( 4/2 , -1 )
= ( 2 , -1 )
the radius of the circle is just half of the length of the diameter.
So, r = 1/2√(-3 -7 )² + ( 2 - (-4))²
= 1/2√(10)² + ( 2 +4 )²
= 1/2√100 + 36
= 1/2√136
= √136/2
= 2√34/2
= √34
substitute the values of h, k, and r into the standard equation of the circle
( x-h)² + ( y-k)² = r²
( x - 2)² + ( y -(-1))² = (√34)²
(x-2)² + ( y + 1)² = 34
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A student graphed f(x) = x and g(x) = f(x) - 5 on
the same coordinate grid. Which statement
describes how the graphs of f and g are related?
A The graph of f is shifted 5 units up to create the
graph of g.
B The graph of f is steeper than the graph of g.
C The graph of f is shifted 5 units down to create
the graph of g.
D The graph of f is less steep than the graph of g.
The statement (c) describes that the graph of f is shifted 5 units down to create the graph of g. The solution has been obtained using the concept of vertical translation.
What is translation?
Translation is the act of moving a shape or a figure from one position to another. It is classified into two types:
Horizontal Translation: This describes the movement of a function graph to left or right.Vertical Translation: This describes the movement of a function graph upward or downward.Now, for a function f(x) we define a vertical translation of N units as:
g(x) = f(x) + N
If N is positive, the translation is upwards.
if N is negative, the translation is downwards.
We are given g(x) = f(x) - 5
This shows that N is negative and therefore, there is translation of 5 units downwards.
Hence, the graph of f is shifted 5 units down to create
the graph of g.
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is 6.26 number types
Evaluate the iterated integral. 1 0 s5 cos(s6) dt ds 0
The value of the evaluated iterated integral is = 0.002
As per the given data the iterated integral is, [tex]I[/tex] = [tex]\int\limits^1_0[/tex] [tex]\int\limits^s_0[/tex] cos ([tex]s^{6}[/tex] ) [tex]dt ds[/tex]
Here we have to evaluate the given iterated integral.
The definite integral of a real-valued function f(x) with respect to a real variable x on an interval [a, b] is expressed as,
[tex]\int\limits^a_b f({x} )\, dx[/tex] = f(b) - f(a)
Where,
a = Lower limit
b = Upper limit
f(x) = Integrand
dx = Integrating agent
Thus, [tex]\int\limits^_[/tex] ab f(x) dx is read as the definite integral of f(x) with respect to d x from a to b.
Indefinite integrals are implemented when the boundaries of the integrand are not specified.
[tex]I[/tex] = [tex]\int\limits^1_0[/tex] [tex]\int\limits^s_0[/tex] cos ([tex]s^{6}[/tex] ) [tex]dt ds[/tex]
Integrate the given iterated integral.
We get:
= [tex]\int\limits^1_0[/tex] cos ([tex]s^{6}[/tex] ) ([tex]\int\limits^5_0dt[/tex] ) ds
= [tex]\int\limits^1_0[/tex] cos ([tex]s^{6}[/tex] ) [t][tex]0 to s^{5}[/tex] ds
= [tex]\int\limits^1_0[/tex] cos ([tex]s^{6}[/tex] ) [tex](s^{5} -0)[/tex] ds
= [tex]\int\limits^1_0[/tex] [tex]s^{5}[/tex]cos ([tex]s^{6}[/tex] )ds
Then,
[tex]s^{6}[/tex] = t when s = 0
[tex]\frac{dt}{ds}[/tex] = 6[tex]s^{5}[/tex] t = 0
[tex]\frac{dt}{6}[/tex] = [tex]s^{5}[/tex] ds when s = 1..... t = 1
Replace the assumed terms.
Then we get:
[tex]I[/tex] = [tex]\int\limits^1_0[/tex] cos(t) [tex]\frac{dt}{6}[/tex]
[tex]I[/tex] = [tex]\frac{1}{6}[/tex] [tex]\int\limits^1_0[/tex] cos(t) dt
[tex]I[/tex] = [tex]\frac{1}{6}[/tex] [sin(t)][tex]0to1[/tex]
[tex]I[/tex] = [tex]\frac{1}{6}[/tex] [ sin(1) - sin(0) ]
[tex]I[/tex] = [tex]\frac{sin(1)}{6}[/tex]
[tex]I[/tex] = 0.002
Therefore,
The value of the evaluated iterated integral is = 0.002
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A computer can do a computation in 6.8 x 10-9 seconds? How many computations can the computer do in 5 minutes
Answer:
≈[tex]4.4117647059\times10^{10}[/tex] computations in five minutes.
Step-by-step explanation:
[tex]\frac{5*60}{6.8\cdot10^{-9}}[/tex] = [tex]4.4117647059\times10^{10}[/tex].
Proof in the image.
Please mark brainliest so I can get to the expert rank (only 10 to go!)
Select each expression that has a difference of 4 3/12 
Answer:
Step-by-step explanation:
9 7/12 - 5 4/12 = 4 3/12
I need help with this question
Answer:
I think A is the answer.
U're welcome amigo.
Determine the total flops as a function of the number of equations n for the decomposition, forward-substitution, and back-substitution phases of the LU decomposition version of Gauss elimination.
The total flops as a function of the number of equations n for the LU decomposition version of Gauss elimination is given by (n^3 + 3n^2)/3.
The LU decomposition version of Gauss elimination involves 3 phases which are :
decomposition forward-substitution back-substitution.The flops in decomposition phase is (n^3)/3, forward-substitution phase is n^2 and back-substitution phase is 2n^2. By adding all the flops for these 3 disinct phases we get (n^3 + 3n^2)/3 as total flops as a function of the number of equations n for the LU decomposition version of Gauss elimination.
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A term that means the same as the term "variable" in an ANOVA procedure is _____.
A term that means the same as the term "variable" in an ANOVA procedure is a factor.
A factor is a number that divides another number, leaving no remainder. In other words, if multiplying two whole numbers gives us a product, then the numbers we are multiplying are factors of the product because they are divisible by the product.
There are two methods of finding factors: multiplication and division. In addition, rules of divisibility may also be used.
Let us consider the number 8. 8 can be a product of 1 and 8, and 2 and 4. As a result, the factors of 8 are 1, 2, 4, and 8. Therefore, when finding or solving problems involving factors, only positive numbers, whole numbers, and non-fractional numbers are considered.
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The diameter of a circle is 18 in. Find its area to the nearest whole number.
Answer:
The answer is 20
Answer: 254 in^2
Step-by-step explanation:
At a certain college, 64% of the entering freshmen graduate. If we randomly selected 10 entering freshman, find the probability that: 14. Exactly 5 of the students will graduate 15. At least 8 of the students will graduate.
14) Probability that exactly 5 of the students will graduate is 0.1636.
15) Probability that atleast 8 of the students will graduate is 0.2405.
We have , In a college,
The freshmen graduate enters = 64%
Probability of sucess , p = 64% = 0.64
Probability of failure , q = 1 - 0.64 = 0.36
Randomly selected entering = 10 , i.e, n = 10.
This follows a Binomial probability distribution with the parameters, n = 10 and p = 0.64.
Using Binomial probability formula,
P(X = x) = ⁿCₖ pᵏ (1 - p)ⁿ⁻ᵏ
(14) Probability that exactly 5 of the students will graduate = P(x = 5),
P( x = 5) = ¹⁰C ₅ (0.64⁵) (0.36⁵)
= 0.1636
15) Probability that at least 8 of the students will graduate, P(x ≥8) = P(X= 8) + P(X= 9) + P(X= 10)
= ¹⁰C₈ 0.64⁸ 0.36² + ¹⁰C₉ 0.64⁹ 0.36¹ + ¹⁰C₁₀ 0.64¹⁰ 0.36⁰ = 0.2405
Hence, the required probabilities are 0.1636 and 0.2405.
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Help me, please let me know the answer to the question <3
Answer:16.98$
Step-by-step explanation:
A pound of roast beef costs 8.49
2 pounds of roast cost?
2x8.49=16.98
Linda bought a washer and dryer from Mill page Laundry Supplies for y dollars. She signed an installment agreement requiring a 15% down payment and monthly payments of dollars for one year.
a) Her down payment algebraically is 0.15y (b). number of monthly payments must Linda make12 months (c) The total amount of the monthly payments algebraically is 12x (d) The first term a
and the common ratio d a1 = 0.15y, d = x (e) The total amount Linda pays for the washer and dryer on the installment plan algebraically is 12x + 0.15y (e) the finance charge algebraically (12x + 0.15y) - y = 12x - 0.85y
How to solve the problems?The given parameters that will help us get the solutions are
If y = cost of washer and dryer
x = cost for one month.
Down payment = 0.15y
Numbers of months = 12months
Amount of monthly payment = 12x
First term and common ratio = a1 = 0.15y and d = x
Total amount for washer and dryer 12x + 0.15y
Finance charge
(12x + 0.15y) - y
12x - 0.85y
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Complete question:
2. Linda bought a washer and dryer from Millpage Laundry Supplies for y dollars. She signed an
installment agreement requiring a 15% down payment and monthly payments of x dollars for one
year.
a. Express her down payment algebraically.
b. How many monthly payments must Linda make?
c. Express the total amount of the monthly payments algebraically.
d. If Linda models her payment plan as an arithmetic sequence, give the first term a
and the common ratio d
e. Express the total amount Linda pays for the washer and dryer on the installment plan
algebraically.
f. Express the finance charge algebraically.
A smoking cessation program was organized for 623 employees of a company, and 216 successfully stopping smoking. What was
the approximate ratio of successes to failures?
A) 1 to 2
B) 2 to 3
C) 3 to 1
D) 4 to 2
Answer:
A) 1 to 2
Step-by-step explanation:
Total number of people: 623
Successes: 216
Failures: 623 - 216 = 407
Ratio of successes to failure = 216/407
Since 216 is approximately half of 407, the ratio is approximately 1/2.
Answer: A) 1 to 2
Can someone help me with this problem, please
THANKS
Answer:
30%
Step-by-step explanation:
3 pizzas = 30 slices. count yellow 1+6+2 = 9
9/30 = 30%
StarWatch Camping Site
The holiday is just 9 weeks away and they
each plan to save £13 per week from now
Charge per person: £6 per night
until their holiday.
Will they save enough money to cover all
Tent pitch:
≤ 10 mª at £15 per night
their camping site charges?
(ground surface)
If the answer is 'yes' say how much extra
>
10 mª at £18 per night
money they will save.
You must show all your working.
Special offer:
For
every 5 nights you
stay, only pay for 4.
Lila and Wassim are planning a stay
at the StarWatch camping site.
They will:
share a tent between them,
both stay for a total of 10 nights,
use a tent with a rectangular base
measuring 2.3 by 4.2 metres.
Answer:
The total cost of their stay at the StarWatch camping site will be £108. This includes the special offer of 5 nights for the price of 4.
Lila and Wassim have saved £130 by the time of their holiday. This means they have saved £22 extra.
What number gives a result of −4
when 8
is subtracted from the quotient of the number and 4
?
16 is the number gives a result of −4 when 8 is subtracted from the quotient of the number and 4.
What is Division?A division is a process of splitting a specific amount into equal parts.
If it gives a result of -4 then our equation will have ___ = -4
If we subtract 8 from the quotient of a number and 4 we have x/4 - 8
Our equation is:
x/4 - 8 = -4
Add 8 to both sides
x/4=-4+8
x/4=4
Multiply both sides by 4
x=16.
Hence, 16 is the number gives a result of −4 when 8 is subtracted from the quotient of the number and 4.
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what is (x + 2 ) (4x - 1 )
Answer:
(x+2)(4x-1)
For this problem, use the FOIL (first, outside, inside, last) method
You have x, 2, 4x, and -1. Start by multiplying x by 4x and -1. Then multiply 2 by 4x and -1. You should have four separate values to add together.
(x*4x)+(x*(-1))+(2*4x)+(2*(-1)) = 4x^2+(-x)+8x+(-2)
Once you have this, order each value by their exponents and combine like terms. The highest exponents always go to the left and lowest exponents go to the right.
4x^2+7x-2
what is the difference from C to D
The difference between points C and D is √289 units.
What is Distance formula?
The distance formula is a mathematical formula used to determine the distance between two points in a plane. The formula is:
d = √((x2 - x1)² + (y2 - y1)²)
"C" and "D" are points in a two-dimensional coordinate system. C is represented by the coordinates (-1, 11) and D is represented by the coordinates (7, -4).
The difference between these two points is the distance between them, which can be calculated using the distance formula:
√((x2 - x1)² + (y2 - y1)²)
Where x1, y1 are the coordinates of point C and x2, y2 are the coordinates of point D.
Substituting the values, we get:
√((7 - (-1))² + (-4 - 11)²) = √((8)² + (-15)²) = √(64 + 225) = √289
Hence, the difference between point C and D is √289 units.
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Write two equations showing the Transitive Property of Equality. Justify your reasoning.
11
Stephen is n years old.
Rachel is 10 years older than Stephen
(a) Write an expression for Rachel's age.
Tim is 13 years younger than Stephen.
(b) Write an expression for Tim's age.
Juil
neb
13
12
inotdan ni
(c) Write an expression for the total age of Stephen, Rachel and Tim.
nt
2