Given : Two groups
Group A: contains 390 people.
Three fifths of the people in group A will be selected to win $100 fuel cards.
So, the number of people who will win = 3/5 * 390 = 234
Group B : contains 553 people
the group will receive the same number of fuel cards
so, the group will receive 234 cards
The non-winners of group A = 390 - 234 = 156
The non-winners of group B = 553 - 234 = 319
The ratio between them = 156 : 319
If m 3 = 80°, find m 7. Type a numerical answer in the space provided. Do not type degree symbols or spaces in your answer.
The value of m∠7, given the data from the question is 80°
Alternate angle theoremAlternate angle theorem states as follow:
When two parallel lines are cut by a line (i.e transversal), then the alternate interior angles or alternate exterior angles are aqual.
How to determine the value of m∠7From the diagram,
Line l and line m are parallel linesm∠3 and m∠7 are alternate anglesm∠3 = 80°m∠7 =?From the above, we can see that m∠3 and m∠7 are alternate angles.
Therefore,
m∠7 = m∠3
m∠7 = 80°
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Complete question
please see attached photo
Each person at a
baseball game receives 3 raffle tickets
and a $2 certificate for the team store.
A group of people receives 39 raffle
tickets. How much money in certificates
does the group receive?
In a case whereby baseball game receives 3 raffle tickets and a $2 certificate for the team store. A group of people receives 39 raffle tickets the amount of money in certificates the group receive is $26.
How can this be calculated?If one baseball game receives 3 raffle tickets and a $2 certificate for the team store, then we can say that each raffle ticket is worth 2/3 dollars ($2 divided by 3 tickets).
So, for 39 raffle tickets, the group would receive (39 x 2/3) = $26
Therefore, the amount of money in certificates the group receive is $26
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Brett's fish tank can hold up to 10.5 gallons of water before it overflows. Brett has poured 9 gallons of water into his fish tank so far.
Let x represent how many more gallons of water Brett can pour into his fish tank. Which inequality describes the problem?
Solve the inequality. Then, complete the sentence to describe the solution.
Brett can pour at most
more gallons of water into his fish tank.
Answer:
x ≤ 1.5
Step-by-step explanation:
Brett can pour at most 1.5 more gallons of water into his fish tank. This is because the fish tank can only hold 10.5 gallons of water and Brett has already poured 9 gallons into the tank. So, the maximum amount of water he can pour is the remaining 1.5 gallons.
Which statement is true about the value of 1-5/?
O It is the distance that -5 is from 0 on the number line.
O It is the distance that -5 is from 5 on the number line.
O It is less than 5.
0 It is greater than 5.
Answer:
O It is less than 5.
Step-by-Step
OK so, first u check if it has a negative. It does, so its at the left of 0. SO you know its less than.
A grocery store bought ice cream for $2.80 per half gallon and stored it in two freezers. During the night, one freezer malfunctioned and ruined 12 half gallons. If the remaining ice cream is sold for $3.96 per half gallon, how many half gallons did the store buy if they made a profit of $66.16?
Steps:
Add 47.52 to both sides
Divide both sides by 1.16
x= 98
Description:
The first step is to add 47.52 to both sides then simplify it then divide the both sides by 1.16. And your answer will equal as x=98.
Answer: x= 98
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Hope this helps.
4.2 x 10^8 is how many times the value of 2.1 x 10^2
A. 2 x 10^4
B. 2 x 10^6
C. 2.1 x 10^6
D. 2.1 x 10^4
4.2 x 10^8 is 2*10^6 times the value of 2.1 x 10^2 when division is performed.
How can the number of times can be calculated?The concept that will be used to solve the question is division operation.
We were given 4.2 x 10^8 which is greater than 2.1 x 10^2
The operation can be expressed as :
4.2 x 10^8 =( n *2.1 x 10^2)
where n = the number of times that 4.2 x 10^8 is greater than 2.1 x 10^2
Then make n the subject of the formular which is
n = 4.2 x 10^8/2.1 x 10^2
n = 2*10^6
Therefore, the values of 4.2 x 10^8 is greater than 2.1 x 10^2 in 2*10^6 times.
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help......................
Where the above relations are given, note that Options A, D, and E are the relations that represents a function. The others are just relations.
How do you identify the relation that represents a function?To distinguish a function from a relation, look to see if any of the x values are repeated; if not, the relationship is a function. If some x values are repeated but the accompanying y values differ, we have a relation rather than a function.
Note that where you are given domain and range, only the range is represented on the x-axis.
Some of the x values may be seen repeated in B, and C.
How is this so?
B) In a coordinate system, values are represented as (x, y). so
In relations, B 2 is repeated twice to in connection with -5, and -6. That is:
(2, -5) , (2, -6)
Since two is x, then its repetition nullified the relation as a function.
C) On table indicated on C, it is much easier to identify the x and y values. As is seen, -3 is repeated twice in connection with 4 and 2. Thus, its repetition nullified the relation as a function.
As a result, Options A, D, and E are the relations that represent a function.
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Bob drove 936 miles in 13 hours.
At the same rate, how many miles would he drive in 7 hours?
Answer:
504
Step-by-step explanation:
You would divide 936 and 13 together, Then You wouldve gotten 72 the multiply 72x7
Ten upright dominos of increasing height are lined up to be knocked down. The dominos are numbered 0 to 9. The smallest domino, #0, is 3.00 inches tall and will be toppled by a person to start the chain reaction. Each subsequent domino is 15% taller than the one before. What is the height of domino #9?
Answer:
8.604 in.
Step-by-step explanation:
We can use the formula for compound interest to find the height of domino #9:
A = P(1 + r)^n
where A is the final amount, P is the initial amount, r is the growth rate, and n is the number of compounding periods. In this case, P is the height of domino #0, r is 15% or 0.15, and n is 9 (since we want to find the height of domino #9).
Substituting the given values:
A = 3.00 in * (1 + 0.15)^9
Simplifying:
A = 3.00 in * 2.86797199
A ≈ 8.604 in
Therefore, the height of domino #9 is approximately 8.604 inches.
simplify the variable expression below as much as possible (2x4)x+3+2
The expression is given to be:
\((2\cdot4)x+3+2\)Solve the parentheses:
\(2\cdot4=8\)Therefore, the expression becomes:
\(8x+3+2\)Add the numbers:
\(3+2=5\)Therefore, the answer is:
\(\Rightarrow8x+5\)Meena mowed 9 lawns in 18 hours. What was her rate of mowing in lawns per hour?
Answer:
2
Step-by-step explanation:
Because
2 hours=1 lawn
4 hours=2 lawns
6 hours=3 lawns
8 hours=4 lawns
10 hours=5 lawns
12 hours=6 lawns
14 hours=7 lawns
16 hours=8 lawns
18 hours=9 lawns
Another way to think of it is 18 hours by 9 lawns=2 so each 2 hours the lawns should be half like how 12 hours is 6 lawns or how 16 hour is 8 lawns.
Hope this helps have a great afternoon:)
The rate of mowing the lawn by Meena is 2 units per hour, at this rate she will mown 9 lawns in 18 hours.
Given, that Meena mowed 9 lawns in 18 hours.
The breakup of lawn mowing by Meena can be described as below.
She mowed 9 lawns in 18 hours.
So, the breakup :
2 hours = 1 lawn
4 hours = 2 lawns
6 hours = 3 lawns
8 hours = 4 lawns
10 hours = 5 lawns
12 hours = 6 lawns
14 hours = 7 lawns
16 hours = 8 lawns
18 hours = 9 lawns
In this way she mowed 9 lawns in 18 hours with a rate of 2 lawns per hour.
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what is the most effluence first step to isolate the variable term on one side of this equation -9x=-4x+5
please help! due in 1 hour!
A polygon with an area of 10 square inches is dilated by a scale factor of 4, what is the new area?
The new area would be 40 square inches. When a scale factor dilates a polygon, the area is multiplied by the square of the scale factor. If the original area is 10 square inches and the scale factor is 4, the new area would be 10 x 4^2 = 10 x 16 = 40 square inches.
Angle ADB and CD are straight lines. angle ADC = 5 x angle CDB Work out the size of angle ADC.
Answer:
Step-by-step explanation:
Choose the correct graph of the function
Image attached! Please help
Really simple algebra equation!
Giving 50points!
Answer:
a=10
Step-by-step explanation:
use a^2+b^2=c^2
(a+2)^2+(a-5)^2=(a+3)^2
a^2+4a+4+a^2-10a+25=a^2+6a+9
2a^2-6a+29=a^2+6a+9
a^2-12a=-20
a^2-12a+20=0
quadratic formula→(12+/-8)/2
a=10 or 2
2 is not an option because 2-5=-3 which isn't possible in this case.
so a=10
Apply Pythagorean theorem
(a-5)²+(a+2)²=(a+3)²a²-10a+25+a²+4a+4=a²+6a+9a²-6a+29=6a+9a²-12a+20=0a²-10a-2a+20=0a(a-10)-2(a-10)=0(a-2)(a-10)=0a=2,10There is a side a-5 so 2 is not a answer
a=10a) Recall that the diameter of the High Roller Ferris wheel in Las Vegas is 167 m and that it takes 30 minutes to make one full revolution. If we model the height of a passenger using the sine
Answer:
Explanation:
Please answer need to turn it in please help me answer
Answer: Sir in what way would you like me to explain this
Step-by-step explanation:
I'LL GIVE BRAINYEST
A box shaped like a rectangular prism has a height of 8 inches, a width of 6 inches, and a volume of 240 cubic inches. What is the length?
7 inches
6 inches
5 inches
4 inches
Answer:
7 inches..............
Answer:
8
Step-by-step explanation:
Volume = Length * Width * Height
512 = 8*8*Height
Height = 512/64=8
Solve for angles x and y in the triangle below. Round your angle to the nearest whole degree.
Solve for both x and y
\(\tan(y )=\cfrac{\stackrel{opposite}{6}}{\underset{adjacent}{4}} \implies \tan( y )= \cfrac{3}{2} \implies \tan^{-1}(~~\tan( y )~~) =\tan^{-1}\left( \cfrac{3}{2} \right) \\\\\\ y =\tan^{-1}\left( \cfrac{3}{2} \right)\implies y \approx 56.31^o \\\\[-0.35em] ~\dotfill\\\\ \tan(x )=\cfrac{\stackrel{opposite}{4}}{\underset{adjacent}{6}} \implies \tan( x )= \cfrac{2}{3} \implies \tan^{-1}(~~\tan( x )~~) =\tan^{-1}\left( \cfrac{2}{3} \right) \\\\\\ x =\tan^{-1}\left( \cfrac{2}{3} \right)\implies x \approx 33.69^o\)
Make sure your calculator is in Degree mode.
Subtract.
(11x2 + 3x – 9) - (2x2 + 2x + 7)
Answer:
21x
Step-by-step explanation:
11 x 2= 22
22 + 3x =25x
25 - 9x = 16x
16x - 4 = 12x
12x + 2 + 7 =21x
BUT- IF YOUR LOOKING FOR N INQUAILTY HERE..
ANSWER: 9ײ + x - 16
steps:
(1): "x2" was replaced by "x^2". 1 more similar replacement(s).
(((11•(x2))+3x)-9)-((2x2+2x)+7)
((11x2 + 3x) - 9) - (2x2 + 2x + 7)
3.1 Factoring 9x2+x-16
The first term is, 9x2 its coefficient is 9 .
The middle term is, +x its coefficient is 1 .
The last term, "the constant", is -16
IF its not right sorry
Answer:
9x^2+x−16
Step-by-step explanation:
I got it right on TTM/Imagine Math
please help me with my online classwork!
Answer:
840 cm²---------------------------
There are two triangular faces with base of 16 cm and height of 15 cm and three rectangular faces.
Find the sum of areas of all five faces:
S = 2*(1/2)*16*15 + (17*2 + 16)*12 = 240 + 600 = 840If the prime factorization of 600 is 2 x 2 × 2 × 3 × 5 × 5, what would you need to multiply it by to get the prime factorization of 3000?
To get the Prime factorization of 3000 we need to multiply by 5.
What is Prime Factorization:When the number is factored using prime numbers, or primes, the process is known as prime factorization. The easiest method to determine the prime factors of a given number is to keep dividing the given number by the prime factors until we will get 1.
For example, the Prime factorization of 45 is given below
=> 45/5 = 9, 9/3 = 3, 3/3 = 1
=> 45 = 5 × 3 × 3
Here we have
The prime factorization of 600 is 2 x 2 × 2 × 3 × 5 × 5
Let us assume that on multiplying with p,
we will get the factorization of 3000
=> 2 x 2 × 2 × 3 × 5 × 5 × p = 3000
=> p = \(\frac{3000}{2\times 2 \times 2 \times 3 \times 5 \times 5}\)
Her 2 x 2 × 2 × 3 × 5 × 5 = 600
=> p = \(\frac{3000}{600}\)
=> p = 5
Therefore,
To get the Prime factorization of 3000 we need to multiply by 5.
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I need help asap please!!!
The values of the angles given are: 0,90,180,240,270,360,420,480,540,600,630,660,720 and
What is sine of angles?he sine of an angle is the trigonometric ratio of the opposite side to the hypotenuse of a right triangle containing that angle. It is defined as the length of the opposite side divided by the length of the hypotenuse
The given angles are: 0,30,45,90,120,135,180,210,225,240,270,300,315,330,360
2∅ 2*∅ = 0, 90,180,240,270,360,420,480,540,600,630,660,720
sin 2∅ = sin0 = 0; Sin90=1; sin180=0; sin240= -0.8660; sin270 = -1;
Each angle is multiplied by sine sine360 =1; sin420 = 0.8660; sin480= 0.9848; sin540=1; sin600=-0.8660; sin630=-1; sin660=0.8660; sin720= 0.9397
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What is the sum of a °+c °?
Answer:
300 degrees.
Step-by-step explanation:
a = 180 degrees
c = 180 - 60 = 120 degrees
Which of the expressions are equivalent to the one below check all the apply (12 + 3) ÷ 5
The expression is equivalent to the expression (12 + 3) ÷ 5 is (3 + 12) ÷ 5
Which of the expressions are equivalent to the expressionFrom the question, we have the following parameters that can be used in our computation:
(12 + 3) ÷ 5
The above expression is a quotient expression
However, we can apply some algebraic properties
Take for instance;
12 + 3 can be expressed as 3 + 12
So, we have
(12 + 3) ÷ 5 = (3 + 12) ÷ 5
Hence, the expression is equivalent to the expression is (3 + 12) ÷ 5
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A certain affects virus 0.2% of the population. A test used to detect the virus in a person is positive 88% of the time if the person has the virus (true positive) and 10% of the time if the person does not have the virus (false postive). Fill out the remainder of the following table and use it to answer the two questions below.
Infected Not Infected Total
Positive Test
Negative Test
Total 200 99,800 100,000
a) Find the probability that a person has the virus given that they have tested positive. Round your answer to the nearest tenth of a percent and do not include a percent sign.
P(Infected | Positive Test)=
%
b) Find the probability that a person does not have the virus given that they test negative. Round your answer to the nearest tenth of a percent and do not include a percent sign.
P(Not Infected | Negative Test) =
%
If a certain affects virus 0.2% of the population:
a. The probability that a person has the virus given that they have tested positive is 1.7%.
b. The probability that a person does not have the virus given that they test negative is 99.8%.
How to find the probability?a) Using Bayes' theorem, we can find the probability that a person has the virus given that they have tested positive:
P(Infected | Positive Test) = P(Positive Test | Infected) * P(Infected) / P(Positive Test)
where P(Positive Test) is the probability of a positive test result, regardless of whether the person is infected or not. This can be calculated as:
P(Positive Test) = P(Positive Test | Infected) * P(Infected) + P(Positive Test | Not Infected) * P(Not Infected)
= 0.88 * 0.002 + 0.1 * 0.998
= 0.10064
Now we can plug in the given values:
P(Infected | Positive Test) = 0.88 * 0.002 / 0.10064 ≈ 0.0174
So the probability that a person has the virus given that they have tested positive is approximately 1.7%.
b) Similarly, we can use Bayes' theorem to find the probability that a person does not have the virus given that they test negative:
P(Not Infected | Negative Test) = P(Negative Test | Not Infected) * P(Not Infected) / P(Negative Test)
where P(Negative Test) is the probability of a negative test result, regardless of whether the person is infected or not. This can be calculated as:
P(Negative Test) = P(Negative Test | Infected) * P(Infected) + P(Negative Test | Not Infected) * P(Not Infected)
= 0.12 * 0.002 + 0.998 * 0.998
= 0.99796
Now we can plug in the given values:
P(Not Infected | Negative Test) = 0.998 * 0.99796 / 0.998 = 0.99796
So the probability that a person does not have the virus given that they test negative is approximately 99.8%.
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Please help with this math problem!!
The given equation has no solution.
What is a Quadratic equation?
A polynomial equation of the second degree, or a quadratic, must contain at least one squared term to be considered a quadratic. Equations using quadratics is another name for it. The quadratic equation has the following general form: ax2 + bx + c = 0, where x is an unknown variable and a, b, and c are numerical coefficients. A quadratic equation is one like x2 + 2x + 1 for instance.
Given equation:
4r² + 3r + 15 = 9
we can simplify it as :
4r² + 3r = 9 - 15
4r² + 3r = - 6
4r² + 3r + 6 = 0
Now, we will use Quadratic formula which is given by :
r = [ -b + √b² - 4ac ] / 2a
Substituting values as a = 4, b = 3 and 6.
we get,
r = [ -3 + √3² - 4(4)(6) ] / 2(4)
= [ -3 + √(-87)]/8
since, its determinant (b² -4ac) is negative, hence the given equation has no roots.
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When Mrs Munyai wanted to swim in her new pool, the temperature of the wate 19 °C and she said she would only swim if the temperature of the water was 25 °C temperature must increase by 6 °C. Calculate what the temperature change would be in °F. You may use the following formula: (°F-32) ÷ 1,8 = °C +
The temperature needs to be increased by \(10.8 ^{\circ}F\) for Mrs. Munyai to swim in the pool.
The formula to convert the temperature from Celcius to Fahrenheit is:
\(\textdegree F = (\textdegree C * 1.8) + 32\)
We need to calculate the temperature change of \(6 \textdegree C\) in Fahrenheit:
\(\Delta \textdegree C = 6\\\Delta \textdegree F = \Delta \textdegree C * 1.8 = 10.8\)
The temperature needs to be increased by \(10.8 ^{\circ}F\) for Mrs. Munyai to swim in the pool.
We can calculate the Fahrenheit temperature of the water and the desired temperature in Fahrenheit:
\(^{\circ}C = 19\\^{\circ}F = (19 * 1.8) + 32 = 66.2\)
\(^{\circ}C = 25\\^{\circ}F = (25 * 1.8) + 32 = 77\)
The current temperature of the pool is \(66.2 ^{\circ} F\) and the desired temperature is \(77 ^{\circ} F\).
Therefore the temperature needs to be increased by:
\(\Delta ^{\circ}F = 77 - 66.2 = 10.8 ^{\circ}F\)
which is the same temperature change we calculated earlier in Fahrenheit.
Therefore, the temperature needs to be increased by \(10.8 ^{\circ}F\) for Mrs. Munyai to swim in the pool.
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