Answer
189
Step-by-step explanation:
just is
7a + 3bc -6c7(1) +3 1/3 (-2) -6(-2) =
7(1) +3 1/3 (-2) -6(-2) =
Multiply
7+ 1 (-2) +12 =
Add and subtract
7-2+12 =
17
Can the following list represent a complete probability model? P(2)= 1/12 P(3) = 2/3 P(4) = 1/4
Therefore , the solution of the given problem of probability comes out to be a complete probability model cannot be represented by this list.
What exactly is probability?The main objective of each considerations technique is to calculate the likelihood that a claim is true or that a particular incident will occur. Anything between 0 and 1, were 0 traditionally denotes a percentage and 1 typically denotes the degree of certainty, can be used to represent chance. A probability illustration shows the likelihood that a particular event will occur.
Here,
The probabilities assigned to the outcomes do not add up to 1, hence the following list cannot be a complete probability model.
=> P(2) + P(3) + P(4)
=> 1/12 + 2/3 + 1/4
=> (1 + 8 + 3) / 12
=> 12 / 12 = 1
In a complete probability model, the total of the probabilities should always be equal to 1, indicating that there is a probability of 1 that one of the events will occur.
In this instance, there is a missing probability since the sum of the probabilities assigned to the possible possibilities is less than 1.
Therefore, a complete probability model cannot be represented by this list.
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Use reasoning to solve for the unknown number. five is the quotient of 100 / some number what is the number 5 is the quotient of 100 divided by _____.
Answer: 20
Step-by-step explanation: just do 100/5=20 so do 100/20=5 hope this helps!!
Answer:
20
Step-by-step explanation:
the guy above me ∧ is correct! Hope this helps! :)
There are nine saxophone players in the band. The number of saxophone players is one less than twice the number of tuba players. Find the number of tuba players.
Answer:
\(5\)
Step-by-step explanation:
Let \(x\) be the number of tuba players.
We are given that the number of saxophone players is one less than twice the number of tuba players.
There are 9 saxophone players.
\(9 = 2 x-1\)
\(9+1=2x\)
\(10=2x\)
\(10 \div 2=x\)
\(5=x\)
Point Q is between Points A and B on AB, which definition, property, or postulate would justify the equation: AQ + QB = AB
In order to multiply fractions, the ______(s) are multiplied together, the_______(s) are multiplied together, and the fractions is simplified
Answer:
Numerators and denominators
Step-by-step explanation:
Upper part of fraction is referred to as numerator while lower part as denominator.
Answer:
In order to multiply fractions, the numerator(s) are multiplied together, the denominator(s) are multiplied together, and the fractions is simplified
Step-by-step explanation:
I remember it like this: numerator - up; denominator - down
Please give me brainliest
PLEASE I need this answer ASAP I am being timed
Answer:
331.4
Step-by-step explanation:
you just add the area of the three squares and then ad those half circles into a whole and solve the area
\(\sqrt{400x^6\)
Answer:
\(20x^3\)
Step-by-step explanation:
\(\sqrt{400x^6}\\=\sqrt{400}*\sqrt{x^6}\\=20(x^6)^\frac{1}{2}\\=20x^{6*\frac{1}{2}}\\=20x^3\)
Kiyo invites 5 friends to a sporting event.
Tickets cost $40 each. He knows at least one
friend will choose to attend the event.
Answer: 40 dollars
Step-by-step explanation:
i hope the explanation is right:)
If he invites 5 friends for 40 bucks each then one friend that he knows will go is 40 dollars. So the only thing you have to do for this problem is multiply 40 by the number of friends which in this case i believe is 1.
Pleas I need help ASAP
NOTE: sorry if im wrong
ANSWER: C.
Answer:
a)
c)
d)
Step-by-step explanation:
a) true : from inspection of the graph, when h=0, g=50, so g(0)=50
b) false : we are told that h is hours after 8:00am. Therefore, when h=12, this would be 8:00pm
c) true : from inspection of the graph, the maximum temperature occurs when h=7. We are told that h is hours after 8:00am, so when h=7 this would be 15:00 = 3.00pm
d) true : from inspection of the graph, we can see that when h=11, g≈62 and when h=8, g≈74. Therefore g(11) < g(8)
e) false : at 8.00am, h=0 and g=50. At 1.00pm, h=5 and g≈71. 71-50=21. 21≠10.
PLEASE I'M ON MY LAST ATTEMPTTTTTTTTT ;-;
The best way to describe the center of the data as represented on the line plot is the mean is 4 inches
How to find the mean ?To find the mean, first list out the numbers in the line plot to be :
0, 1, 2, 4, 5, 5, 5, 6, 6, 6
The mean can be found by the formula :
= Sum of all numbers / Number of data points
Sum of all numbers :
= 0 + 1 + 2 + 4 + 5 + 5 + 5+ 6 + 6 + 6
= 40
Number of data points = 10
The mean is:
= 40. / 10
= 4 inches
The median would be the average of the two numbers in the middle:
= ( 5 + 5 ) / 2
= 5
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Find the Central arc measure
Answer:
The central arc measure is 125.
Answer
-10 – (-2) =
Answer:
8
Step-by-step explanation:
- (-2) is the same as + 2
-10 + 2 = -8
Answer:
-8
Step-by-step explanation:
Since there are two minus sign with the two, make it into plus. There fore the equation is -10+2= -8!
The student council is ordering T-shirts from a website. The T-shirts cost $9 each and there is a shipping fee of $8 for any
amount ordered. The student council wants to spend exactly $710 on the T-shirts. How many T-shirts, x, they can order?
an
Answer: They can order 78 shirts.
Step-by-step explanation:
9x + 8 = 710
9x = 702
x = 78
**Since the shipping fee is $8 for ANY amount ordered, the price of shipping doesn’t change with the number of shirts — the shipping price is a constant.
Assume that a sample is used to estimate a population proportion p. Find the 99% confidence interval for a sample of size 315 with 37% successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.
Answer:
The 99% confidence interval is = 0.37 +/- 0.070
= (0.300, 0.440)
Step-by-step explanation:
Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.
The confidence interval of a statistical data can be written as.
p+/-z√(p(1-p)/n)
Given that;
Proportion p = 37% = 0.37
Number of samples n = 315
Confidence interval = 99%
z value(at 99% confidence) = 2.58
Substituting the values we have;
0.37 +/- 2.58√(0.37(1-0.37)/315)
0.37 +/- 2.58√(0.00074)
0.37 +/- 2.58(0.027202941017)
0.37 +/- 0.070183587825
0.37 +/- 0.070
= (0.300, 0.440)
The 99% confidence interval is = 0.37 +/- 0.070
= (0.300, 0.440)
There are 3 feet in a yard. How many yards, as a mixed number, will you drive until you reach this exit?
The number of yards, as a mixed number, will you drive until you reach this exit is 333 1/3 yards
How to determine the number of yards to drive?The complete question is added as an attachment
From the attached figure, we have:
Exit = 1000 feet
From the question, we have
3 feet = 1 yard
So, the number of yards is
Number of yard =Exit/3 yards
This gives
Number of yard = 1000/3 yards
Evaluate the quotient
Number of yard = 333 1/3 yards
Hence, the number of yards, as a mixed number, will you drive until you reach this exit is 333 1/3 yards
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Consider the graph of the function.
Which best represents the graph of the function?
Responses
f(x)=x−8−−−−√+2
f
(
x
)
The equation of the function represented by the graph is (d) g(x) = √(x + 9) - 1
How to describe the transformed equation from the parent function?From the question, we have the graph that can be used in our computation:
The parent function of the graph is a square root function
This is represented as
f(x) = √x
First, we have the transformation to be:
The function is translated left by 9 units
Next, we have:
The function is translated down by 1 unit
Mathematically, this can be represented as
g(x) = f(x - 9) - 1
When represented as an equation, it is
g(x) = √(x + 9) - 1
Hence, the transformation is (d) g(x) = √(x + 9) - 1
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The elevation of a submarine with respect to sea level is displayed as - 125 feet. Which statement is correct?
A. The submarine is 125 feet above sea level.
B. The submarine is 125 feet below sea level.
C. The submarine is -125 feet above sea level.
D. The submarine is -125 feet below sea level.
B. The submarine is 125 feet below sea level.
Step-by-step explanation:
-124 feet because - (negative) means the submarine is 124 meters below sea level (masl).
Answer:
The elevation of a submarine with respect to sea level is displayed as - 125 feet. Which statement is correct?
A. The submarine is 125 feet above sea level.
B. The submarine is 125 feet below sea level.
C. The submarine is -125 feet above sea level.
D. The submarine is -125 feet below sea level.
Step-by-step explanation:
The keyword is below so it means it is a negative integer. Therefore the answer is letter D.What is the solution to the equation 2x+4-12-20?
X=0
x=1
X=2
X=9
Answer:
C : x=2
Step-by-step explanation:
Edge 2022
what is the distance between (10,0),(0,4)
Answer:
c = 10.7703296143
Step-by-step explanation:
This can be figured out through Pythagorean theoroem.
a²+b²=c²
10,0 indicates 10 for X, 0 for Y.
So the length is 10.
0,4 indicates 4 tall, so height is 4
10²+4²=c²
100+16=c²
√ 116=√ c²
c = 10.7703296143
What is 3.30 divided by -2.00? Show work.
Answer:
1.65Step-by-step explanation:
\(\frac{3.3}{-2}\\\\\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{-b}=-\frac{a}{b}\\=-\frac{3.3}{2}\\\\\mathrm{Divide\:the\:numbers:}\:\\\frac{3.3}{2}=1.65\)
1. A random sample of 25 customers for lunch at a local restaruant stayed an average of 45 minutes with a standard deviation of 10 minutes. Another random sample of 30 customers for dinners at this restaurant stayed an average of 55 minutes with a standard deviation of 15 minutes. Determine a 95% confidence interval for the difference of the mean time that the customers stayed for lunch and for dinner.
a. (3.35, 16.65) b. (3, 17) c. (3.06, 16.94) d. (-3.35, 16.62) e. (-3, 17)
A 95% confidence interval for the difference of the meantime that the customers stayed for lunch and for dinner the correct option is option a (3.35, 16.65).
Given:
The number of random customers n1 = 25
The number of random customers n2 = 30
x1 = 45, x2 = 55
σx1 = 10, σx2 = 15
Zα12 = Z0.025 = 1.96
95% confidence interval,
= {(x2-x1) ± Zα12 [(σx1)^2/n1 + (σx2)^2/n2]^0.5}
= {(55-45) ± 1.96 [\(10^{2}\)/25 + \(15^{2}\)/30]^0.5}
= {10 ± 1.96(4 + 7.5)^0.5}
= {10 ± 1.96(11.5^0.5)}
= {10 ± 1.96(3.3911)}
= {10 ± 6.6466}
=> (10-6.6466, 10 + 6.6466)
=> (3.35, 16.65)
So, the correct option is a (3.35, 16.65) for the difference of the meantime.
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What is the distance from Mto N?
4
N(2,3)
3
2
1
5 4 3 2
1
1 2
3 4 5
2
-3
4
M-4.-5)
A. 14 units
B. 100 units
C. 10 units
D. 2 units
9514 1404 393
Answer:
C. 10 units
Step-by-step explanation:
The distance MN can be found using the distance formula.
d = √((x2 -x1)² +(y2 -y1)²)
d = √((2 -(-4))² +(3 -(-5))²) = √(6² +8²) = √100 = 10
The distance from M to N is 10 units.
Ages Number of students
15-18 5
19-22 7
23-26 8
27-30 7
31-34 2
35-38 4
Based on the frequency distribution above, find the relative frequency for the class with a lower class limit of 35
Give your answer as a percent, rounded to 1 place after the decimal point, if necessary. Type only a number in the answer box (do NOT type "%" after your answer).
Answer:
35 is the answer
Step-by-step explanation:
What is the area of the square that measures 3.1 m on each side
The area of the square with a side length of 3.1 meters is 9.61 square meters.
To find the area of a square, we need to multiply the length of one side by itself. In this case, the square has a side length of 3.1 m.
Area of a square = side length × side length
Substituting the given side length into the formula:
Area = 3.1 m × 3.1 m
To perform the calculation:
Area = 9.61 m²
It's worth noting that when calculating the area, we are working with squared units. In this case, the side length is in meters, so the area is expressed in square meters (m²). The area represents the amount of space enclosed within the square.
Remember, to find the area of any square, you simply need to multiply the length of one side by itself.
The area of the square with a side length of 3.1 meters is 9.61 square meters.
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1 Solve for the variable. 3x + 8 = 44
Answer:
x=12
Step-by-step explanation:
3x12=36
36+8=44
Answer:
x = 12
Step-by-step explanation:
3x + 8 - 8 = 44 - 8
3x = 36
simplify to get 12
A trapezoid has an area given by A =1-2(b1-b2)h,where b1,is the length of one base, b2 is the length of the other
base, and h is the height. If the trapezoid has an area of 14 square units, solve for b in terms of the other variables.
The value of \(b_{1}\) is 69/4h and value of \(b_{2}\) is 43/4h if the area of trapezoid is 14 square units.
Given that area is equal to 1-2(\(b_{1} -b_{2}\))h and area is 14 square units.
We know that area of trapezoid is equal to (a+b)h/2.
We have to put the given equation equal to 14 to get our first equation.
14=1-2(\(b_{1} -b_{2}\))h
14=1-2\(b_{1}\)h+2\(b_{2}\)h
2\(b_{1}\)h-2\(b_{2}\)h=-13------------1
Now put the value of area in the formula of area of trapezoid.
14=\((b_{1} +b_{2})h/2\)
\(b_{1}\)h+\(b_{2}h\)=28-----------------2
Multiply equation 2 by 2 and then subtract 2 from 1
\(2b_{1}h -2b_{2}h -2b_{1}h-2b_{2}h\)=-13-56
-4\(b_{2}h\)=-43
\(b_{2}\)=43/4h
Put the value of \(b_{2}\) in 2 to get the value of \(b_{1}\).
\(b_{1} h+43/4h*h=28\)
\(b_{1}\)=69/4h
Hence The value of \(b_{1}\) is 69/4h and value of \(b_{2}\) is 51/4h if the area of trapezoid is 14 square units.
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I need 23 questions answered
The surface area of a rectangular prism is 48 5/6 mi².
How to calculate the surface area of a rectangular prism?In Mathematics and Geometry, the surface area of a rectangular prism can be calculated and determined by using this mathematical equation or formula:
Surface area of a rectangular prism = 2(LH + LW + WH)
Where:
L represents the length of a rectangular prism.W represents the width of a rectangular prism.H represents the height of a rectangular prism.By substituting the given side lengths into the formula for the surface area of a rectangular prism, we have the following;
Surface area of rectangular prism = 2[6 × 2 1/3 + (1 1/4 × 6) + (1 1/4 × 2 1 /3)]
Surface area of rectangular prism = 2[14 + 15/2 + 35/12]
Surface area of rectangular prism = 48 5/6 mi².
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Hi guys can you help me?
Answer:
(2,-3)
Step-by-step explanation:
(-2 , -5) 4 units down → (-2, -9)
(-2, -9) reflected across y-axis → (2, -9)
The rule for a reflection over the y -axis is (x, y) → (−x, y)
(2, -9) 6 units up → (2, -3)
4.a) A car consumes a gallon of petrol for every 30 km drive. The driver of the car set out on a journey of 420 km with 10 gallons of petrol in the fuel tank. i) How many more gallons of petrol will be needed to complete the journey? ii)find the cost of the petrol for the journey of 420km if a gallon of petrol cost GH¢5.50
i) 4 more gallons of petrol will be needed to complete the journey.
ii) The cost of the petrol for the 420 km journey is GH¢55.00.
i) To determine the number of gallons of petrol needed to complete the journey, we can calculate the total distance that can be covered with the available petrol and then subtract it from the total distance of the journey.
Given that the car consumes 1 gallon of petrol for every 30 km, we can calculate the distance that can be covered with 10 gallons of petrol by multiplying 10 (gallons) by 30 (km/gallon):
Distance covered with 10 gallons = 10 * 30 = 300 km
To find the remaining distance that needs to be covered, we subtract the distance covered with the available petrol from the total distance of the journey:
Remaining distance = Total distance - Distance covered with available petrol
Remaining distance = 420 km - 300 km = 120 km
Since the car consumes 1 gallon of petrol for every 30 km, we can determine the additional gallons of petrol needed by dividing the remaining distance by 30:
Additional gallons needed = Remaining distance / 30 = 120 km / 30 km/gallon = 4 gallons
Therefore, the driver will need 4 more gallons of petrol to complete the journey.
ii) To calculate the cost of the petrol for the journey of 420 km, we need to multiply the total number of gallons used for the journey by the cost per gallon.
Given that a gallon of petrol costs GH¢5.50, and the total number of gallons used for the journey is 10 (given in the problem), we can calculate the cost using the formula:
Cost of petrol = Total gallons used * Cost per gallon
Cost of petrol = 10 gallons * GH¢5.50/gallon = GH¢55.00
Therefore, the cost of the petrol for the journey of 420 km is GH¢55.00.
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