if the area of a rectangle is 52cm and the lenght 8cm what is its width? what is its perimeter?
Answers
29
One side is 8 which means the opposite side it 8, 52cm divided by 8 is 6.5. Add 8+8 then 6.5+6.5. Put those together you get 29 as the perimeter.
Related Questions
50 POINTS ANSWER FOR BRAINLIST AND HEARTS
Answers
The following are the answer to each statement;
The book is $18 - TrueGiselle can earn up to $18 pulling weeds for her grandma - FalseGiselle's grandma pays her $1 for every 5 weeds she pulls - TrueGiselle does not have to use any of her own money towards the purchase of the book when she pulls 90 weeds - TrueGiselle only needs to pull 18 weeds to not use any of her own money - FalseHow to interpret graph?1. The book is $18
The statement is true because the beginning of the graph represents cost before she picks any weeds.2. Giselle can earn up to $18 pulling weeds for her grandma.
This is not true because the graph shows that she is still able to earn more money from picking weeds.3. Giselle's grandma pays her $1 for every 5 weeds she pulls
This is true because the price change from $18 to $17 is $1 for 0 weeds to 5 weeds.4. Giselle does not have to use any of her own money towards the purchase of the book when she pulls 90 weeds.
This is true because the amount earned for 90 weeds is equivalent to the money needed to buy the book.5. Giselle only needs to pull 18 weeds to not use any of her own money
Giselle will need to pull 90 weeds in order to not spend her own money. The statement is false.Read more on graph:
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a researcher discovers a strong correlation between the number of hours spent watching tv and the level of aggression shown at school. what can be concluded?
Answers
This research suggests a strong correlation between the number of hours spent watching television and the level of aggression shown at school.
This correlation implies a relationship between the two variables, however, further research is needed to determine the exact cause and effect relationship between television viewing and aggression.
It can be concluded that there is a link between the number of hours spent watching television and levels of aggression exhibited in school.
However, it is impossible to determine from this correlation whether watching television directly causes increased levels of aggression in school, or if there is some other factor that is influencing both variables.
Further research is needed to determine the exact cause and effect relationship between television viewing and aggression.
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the sample mean salary of 500 nba players is 5 million dollars. we also know that the population standard deviation is 0.7 million dollars. we want to construct a confidence interval for population mean with 95% confidence. what will be the length of our confidence interval (in terms of million dollars)?
Answers
The length of our confidence interval (in terms of million dollars) is (4.9412,5.0588)
A 95% confidence interval on the z-table is 1.96.
Now find the standard error using the formula: standard deviation / square root sample size:
0.7 / √500 = 0.03
Multiply to the confidence interval: 1.96 x 0.03 = 0.0588
Now add and subtract the average salary of the nba players:
5.0000 - 0.0588 = 4.9412(million dollar)
5.0000 + 0.0588 = 5.0588(million dollar)
The answer is 4.9412 ≤ u ≤ 5.0588(million dollar)
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Show your work plssss
Answers
As a result, the Moon orbits the Earth roughly 2.8 billion times while the Sun revolves once around the Milky Way's nucleus.
How is earths rotation calculated?
One cycle of the Sun around the Milky Way's nucleus is thought to take between 225 and 250 million years to complete. The synodic month, or the length of time it takes the Moon to complete one orbit of the Earth, lasts roughly 29.5 days.
We must divide the total time of one orbit of the Sun around the Milky Way by the amount of time it takes for the Moon to orbit the Earth once in order to determine how many times the Moon orbits the Earth during one orbit of the Sun around the Milky Way's centre.
The result is (Total time for one orbit of the Sun around the centre of the Milky Way)/(Time for one orbit of the Moon around the Earth) = (225 million years x 365.25 days per year)/(29.5 days per orbit of the Moon) = around 2.8 billion orbits of the Moon around the Earth.
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Given independent events AA and BB such that P(A)=0.3P(A)=0.3 and P(B)=0.5P(B)=0.5, which of the following is a correct statement?
Answers
The correct statement is: P(A and B) <= 0.3 * 0.5 = 0.15.
The probability of A and B both occurring is denoted by P(A and B). If A and B are independent events, then the probability of both events occurring is given by the product of their individual probabilities, that is P(A and B) = P(A) * P(B). Therefore, P(A and B) = 0.3 * 0.5 = 0.15.
To understand why this statement is correct, we need to understand the concept of independence and multiplication rule of probability. When two events are independent, the occurrence of one event does not affect the occurrence of the other. In other words, the probability of one event occurring is not affected by the occurrence of the other event.
The multiplication rule of probability states that if two events A and B are independent, then the probability of both events occurring together is given by the product of their individual probabilities, that is P(A and B) = P(A) * P(B).
In this case, we are given that events A and B are independent, and their individual probabilities are P(A) = 0.3 and P(B) = 0.5. Therefore, we can calculate the probability of both events occurring together as follows:
P(A and B) = P(A) * P(B)
= 0.3 * 0.5
= 0.15
This means that the probability of both events occurring together is less than or equal to 0.15. This statement is correct because the multiplication of probabilities can never result in a probability greater than the smaller of the two individual probabilities.
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A social psychologist conducts an experiment and finds a statistically significant result. This means that the a. experiment is very low in external validity. b. experiment is very high in external validity. c. probability of obtaining this finding by chance alone is less than some quantity. d. probability of obtaining this finding by chance alone is greater than some quantity.
Answers
Considering that the hypothesis test found an statistically significant result, it is found that the correct option is:
c. probability of obtaining this finding by chance alone is less than some quantity.
What is an hypothesis test?When a hypothesis test, there are two hypothesis, the null and the alternative hypothesis.There is also a significance level.If the probability of obtaining the finding by chance is less than the significant value, the result is statistically significant.Hence, according to these bullet points, option C is correct.
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When Sam gave Clarissa 105 chocolates, Clarissa had 5 times as many chocolates as Sam. They had 504 chocolates altogether. How many more chocolates did Clarissa have at first?
Answers
Answer:
315 chocolate
Step-by-step explanation:
Let Sam's chocolate be S
Let Clariss's chocolate be C
When Sam gave Clarissa 105 chocolates, Clarissa had 5 times as many chocolates as Sam.
This can be written as:
C = 5S
The sum of their chocolate is 504 i.e
S + C = 504
Now, let us determine the chocolate of Clarissa after receiving 105 chocolate from Sam. This can be obtained as follow:
S + C = 504
But: C = 5S
S + 5S = 504
6S = 504
Divide both side by 6
S = 504/6
S = 84.
C = 5S = 5 x 84 = 420
Therefore, Clarissa have 420 chocolate after receiving 105 chocolate from Sam.
Now, to know the amount of chocolate that Clarissa has at first, we simply subtract 105 from the present amount that Clarissa have. This is illustrated below:
Amount of chocolate that Clarissa has a first = 420 – 105 = 315
Therefore, Clarissa had 315 chocolate at first.
The number of more chocolates did Clarissa have at first is 315 chocolates.
Calculation of the number of chocolates:Since Sam gave Clarissa 105 chocolates, Clarissa had 5 times as many chocolates as Sam. They had 504 chocolates altogether.
here we assume Sam's chocolate be S and Clariss's chocolate be C
So, the equations are
C = 5S
S + C = 504
So, it could be like
S + 5S = 504
6S = 504
S = 84.
C = 5S = 5 x 84 = 420
Now the extra chocolates shoudl be
= 420 – 105
= 315
Therefore, Clarissa had 315 chocolate at first.
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A triangle has points: A (2,1); B (3, -3); C (-1, 0). If dilated by a scale factor of 1/2, what is point A prime?
Answers
17. Who am I? ___ Collection of one or more different types of variables, including arrays and pointers, that have been grouped under a single name for each manipulation.
a) template
b) array
c) structure
d) local variables
Answers
You are c) a structure. A structure is a collection of one or more different types of variables, including arrays and pointers, that have been grouped under a single name for each manipulation.
A structure is a user-defined data type that allows you to group together related data. For example, you could create a structure to store the name, age, and address of a person. The structure would have three variables, each of a different type: a string variable for the name, an integer variable for the age, and a string variable for the address.
The advantage of using a structure is that it allows you to treat the related data as a single unit. This makes it easier to manipulate the data and to pass the data to functions.
The other answer choices are incorrect. A template is a blueprint for creating a generic class or function. An array is a collection of elements of the same type. Local variables are variables that are declared within a function and that are only accessible within the function.
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suppose that professor degroot has a policy of giving as to the top 10% of student scores on his final, regardless of the actual scores. if the distribution of scores on his final exam turns out to be normal with mean 69 and standard deviation 9, how high does your score have to be to earn an a?
Answers
Your score must be greater than or equal to 81 in order to receive an A grade. The mean value comes out to be 80.52.
Here, we are given that professor Degroot has a policy of giving A grade to the top 10% of student scores on his final.
This means in order to earn an A grade, your score should be in the top 10%.
⇒ Z score should be 0.09
we can look at the z tables to find that this value is at z = 1.28
Now, we know z score is calculated as-
z = (X - μ)/ σ
where X = observed value
μ = sample mean
σ = standard deviation
substituting the given values in the formula we get-
1.28 = (X - 69)/ 9
1.28 × 9 = X - 69
11.52 = X - 69
X = 11.52 + 69
X = 80.52
Thus, your score must be greater than or equal to 81 in order to receive an A grade.
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A large store has a customer service department where customers can go to ask for help with store-related issues. Based on the approximation, what is the probability that at least 1 of the next 4 customers who go to the service department will ask for help finding an item?
1-(3/4)^4
Answers
The probability that at least 1 of the next 4 customers who go to the service department will ask for help finding an item is 0.68.
Given data ,
According to store records, approximately 1/ 4 of all customers who go to the service department ask for help finding an item.
All the customers who go to the service department will not ask for help.
Now, the probability that at least 1 of the next 4 customers who go to the service department will ask for help finding an item is
P(X>=1) = 1 - P(X<1)
= 1 - (1/4)⁰ (3/4)⁴
= 1 - (3/4)⁴
= 0.68
Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one. Probability has been introduced to predict how likely events are to happen.
The meaning of probability is basically the extent to which something is likely to happen. This is the basic probability theory, which is also used in the probability distribution, where you will learn the possibility of outcomes for a random experiment.
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Length of Segment RS please!!! Geometry!
Answers
Answer:
RS = 18 units
Step-by-step explanation:
the 2 red strokes through RM and MS indicate they are congruent, that is
RM = MS = 9 , then
RS = RM + MS = 9 + 9 = 18 units
write the equation of a line that passes through the points (5,-9) and (-3,6)
Answers
Answer:
Step-by-step explanation:
We need to find the slope first, and we'll use the formula rise/run.
6 - -9/ -3 - 5 = 15/-8.
Our slope is -15/8.
Now, we need to find the y-intercept, which is b.
y = mx+b.
m is the slope, so y=-15/8x+b
Now, let's replace x with 5 from that point and replace y with -9 from that same point.
-9 = -(15/8)(5) + b
-72/8 = -75/8 + 3/8
So, the equation is y= -15/8x + 3/8
7
6-
5.
4
3-
2
1-
A
C
1 2 3
= this and return
B
a
S
6
C
What is the area of triangle ABC?
O 3 square units
O 7 square units
O 11 square units
O 15 square units
Answers
The area of triangle ABC is 6 square units.
To find the area of triangle ABC, we need to know the lengths of its base and height.
Looking at the given diagram, we can see that the base of triangle ABC is the line segment AC, and the height is the vertical distance from point B to line AC.
From the diagram, it is clear that the base AC has a length of 3 units.
To determine the height, we need to find the perpendicular distance from point B to line AC.
By visually inspecting the diagram, we can observe that the height from point B to line AC is 4 units.
Now, we can use the formula for the area of a triangle, which is given by:
Area = (1/2) \(\times\) base \(\times\) height
Plugging in the values, we get:
Area = (1/2) \(\times\) 3 \(\times\) 4
= 6 square units
Therefore, the area of triangle ABC is 6 square units.
Based on the provided answer choices, none of the options match the calculated area of 6 square units.
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Find the zero of the polynomial p(x) = cx+d , c cannot be zero , c , d are real number
Answers
Answer: \(\left(-\frac{d}{c}, 0 \right)\)
Step-by-step explanation:
\(cx+d=0\\cx=-d\\x=-\frac{d}{c}\)
So, the zero is \(\boxed{\left(-\frac{d}{c}, 0 \right)}\)
Which toolkit function is this ? I am always continuous and have a point of inflection at the origin. My range is from negative one to one.optionssquare root function , quadratic function, rational function , exponential function constant linear function , linears function cubic function , logarithmic function ,asbolsoute value and sine function
Answers
Step 1
Given; Which toolkit function is this? I am always continuous and have a point of inflection at the origin. My range is from a negative one to one.
Step 2
The function that is always continuous and has a point of inflection at the origin with its range going from -1 to 1 is
\(\begin{gathered} sine\text{ function} \\ Let\text{ us consider the graph of y=sinx} \end{gathered}\)\(\begin{gathered} An\:inflection\:point\:is\:a\:point\:on\:the\:graph\:at\:which\:the\:second\:\: \\ derivative\:is\:equal\:to\:zero\:or\:undefined\text{ }and\:changes\:sign \\ \mathrm{If}\:f\:''\left(x\right)>0\:\mathrm{then}\:f\left(x\right)\:\mathrm{concave\:upwards.} \\ \mathrm{If}\:f\:''\left(x\right)<0\:\mathrm{then}\:f\left(x\right)\:\mathrm{concave\:downwards.} \end{gathered}\)\(\begin{gathered} \frac{d}{dx}\left(sinx\right)=cosx \\ \frac{d}{dx}\left(cosx\right)=-sin(x) \\ -sin(x)=0 \\ x=0,y=0 \\ And\text{ the origin is \lparen0,0\rparen} \end{gathered}\)From the graph, the range is from -1 to 1.
Answer;
\(\)
need help fast----Which equation is y = (x + 3)2 + (x + 4)2 rewritten in vertex form?
y = 2 (x + seven-halves) squared minus one-fourth
y = 2 (x + seven-halves) squared minus one-half
y = 2(x + 7)2 – 73
y = (x + 7)2 – 24
Answers
Answer:
The Answer Is B
Step-by-step explanation:
Took the quiz
Answer:
its B
Step-by-step explanation:
i did the quiz and im verifying the other person's answer :)
Billy is planting a square garden that is 48 ft.² what is the closest side length of each side of the garden
Answers
The closest side length of each side of the garden is 7 feet .
Area is the space covered by an object. It is the realm occupied by all forms. When measuring the area of a square, we only consider the length of the sides. Since all sides of a square are equal, its area is equal to the square of the sides which is given by \(Area=a^2\) ....(1) where "a" is the side of the square.It is given that Billy is planting a square garden that is 48 ft.²
Putting A = 48 ft.² in equation (1) , we get
\(48=a^2\\a=\sqrt{48} \\a=6.92\)
which is approximately equal to 7
Hence , closest side will be 7 ft.
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HELP!!!! ASAP
Identify the values of the variables. Give your answers in simplest radical form.
The figure shows right triangle A B C. Angle A B C is a right angle. Angle A C B measures 30 degrees. Side A B has a length of x units. Side B C has a length of y units. Hypotenuse A C has a length of square root of 2 units.
Answers
x=6–√;y=2–√
x=6–√2;y=2–√2
x=2–√;y=6–√
x=2–√2;y=6–√2
Answers
Answer:
B
Step-by-step explanation:
First, put 3(sqrt(6)) in a different form:
sqrt(9) * sqrt(6) = sqrt(54)
We know that a 30 60 90 triangle has a horizontal leg equal to 1, a vertical leg equal to sqrt(3), and a hypotenuse equal to 2.
Find a multiplier/ratio with this information:
(sqrt(54))/(sqrt(3)) = sqrt(18)
given value/accepted value = multiplier
Now, multiply the other values by the multiplier:
1*sqrt(18) = sqrt(18) or 3(sqrt(2))
2*sqrt(18) = 2(sqrt(18)) or 6(sqrt(2))
Your answer would be:
x = 3(sqrt(2))
y = 6(sqrt(2))
Or option B.
The length of a rectangle is 1 foot less than 3 times the width. The area is 310 ft². Find the dimensions of the rectangle.
Answers
brainly pleaseee
What is the circumference of a circle with a diameter of 28 cm? Approximate using pi equals 22 over 7.
176 cm
88 cm
44 cm
9 cm
Answers
Answer:
88 cm
Step-by-step explanation:
the formula for circumference is π · d
28 · 22/7 = 88
88 cm is the circumference of a circle with a diameter of 28 cm.
What is Three dimensional shape?a three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.
A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.
The circumference of a circle with a diameter of 28 cm.
Radius = 28/2
Radius is 14 cm.
Circumference=2πr
=2×3.14×14
=87.92=88 cm
Hence, 88 cm is the circumference of a circle with a diameter of 28 cm.
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Find the area enclosed by the curve x 3t, y t and the y-axis. Step 1 The curve x = t2-3t, y = Vt intersects the y-axis when x = 0, which occurs when t = 0 and 3 3 H 3 '
Answers
The area enclosed by the curve x = t^2 − 3t, y = √t and the y-axis is 2.08 square units.
We have been given parametric equations x = t^2 − 3t, y = √t
We need to find the area enclosed by the curve x = t^2 − 3t, y = √t and the y-axis.
Consider x = 0
So, t^2 − 3t = 0
t(t - 3) = 0
t = 0 or t = 3
Let f(t) = t^2 − 3t and g(t) = t
Differentiate the curve f(t) with respect to t.
f'(t) = 2t - 3
NWe know that the formula to find the area under the curve.
A = ∫[a to b] g(t)f'(t) dt
here, a = 0 and b = 3
so, A = ∫[0 to 3] √t (2t - 3) dt
A = ∫[0 to 3] (2t√t - 3√t) dt
A = ∫[0 to 3] (2t^(3/2) - 3t^(1/2)) dt
A = [4/5 t^(5/2) - 2 t^(3/2)]_[t = 0, t = 3]
A = 4/5 3^(5/2) - 2 3^(3/2) - 0 + 0
A = 4/5 3^(5/2) - 2 3^(3/2)
A = 6√3 /5
A = 2.08
Therefore, the area of the curve is 2.08 square units.
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How many different ways can you have 50¢ in change using only quarters, dimes and nickels?
A. 1
B. 4
C. 10
D. 15
Answers
I'm pretty sure it's ten.
q = $.25 d = $.10 n = $.05
2q
5d
10n
1q 2d 1n
1q 1d 3n
1q 5n
4d 2n
3d 4n
2d 6n
1d 8n
Which point in the graph is on f(x)=3x5^x
Answers
Answer:???
Step-by-step explanation:
Answer:
(1,15)
Step-by-step explanation:
32° x x
Please help
Answers
180°-32°=2x (angles in a triangle always sum up to 180)
2x= 148°
x= 74° (they are (at least) 2 angles that are even in an isosceles triangle)
Adi bought a bag for $25 and sold it at a loss of 10%. Find the selling price of the bag.
Answers
Answer:
The selling price of the bag is $22.5
Step-by-step explanation:
Buying Price = $25,
Selling Price = ?
Since they sold it at a loss of 10%,
So, they sold it for a price 10% less than the buying price,
or at 90% or 0.9 of the buying price,
so,
Selling Price = (0.9)(25) = $22.5
p=E^2/r. Solve for E
Answers
P*r=E^2/r*r
P*r=E^2
Then u need to find the square root of E^2
So the answer is:
Square root of P*r=E
(I dont have the symbol)
Find the value of x.
Answers
Answer:
Step-by-step explanation:
The line which 3x represents is twice as big as the 48. That's because both sides other than the base are bisected.
3x = 2 * 48
3x = 96 Divide by 3
3x/3 = 96/3 Combine
x = 32
Prove that the flight-path angle is equal to 45' when v =90' on all parabolic trajectories.
Answers
The flight-path angle is equal to 45' when v =90' on all parabolic trajectories is proved using the trajectories.
Using trajectories equation :
r = p/(1+cosv) at v= 90 degrees
r{90} = p/ (1+cos90°)
= p since, cos 90 = 0
also, v= √2mue/r
v{90} = √2mue/p
where r {90} and v{90} are radius and velocity at v = 90 degrees.
the angular momentum is given as , h = r.v cosФ
and at periapsis on a parabolic trajectory , rp = p/2
v{90} = √2mue/p
applying the concentration of angular momentum,
rp.vp = r90.v90.cosФ
p/2.√2mue/p = p.√2mue/p.cosФ
cos Ф = 1/√2
therefore,Ф = 45
hence the flight-path angle is equal to 45' when v =90' on all parabolic trajectories is proved.
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For National High Five Day, Ronnie’s class decides that everyone in the class should exchange one high five with each other person in the class. If there are 20 people in Ronnie’s class, how many high fives will be exchanged?
Answers
To determine the number of high fives that will be exchanged, we need to find the total number of unique pairs of students in Ronnie's class Since there are 20 people in the class, each person .
To calculate the number of unique pairs, we can use the formula for combinations, which is nC2, where n is the number of people .So, for Ronnie's class with 20 people, the number of high fives exchanged is:20C2 = (20 * 19) / (2 * 1) = 190.Therefore, a total of 190 high fives will be exchanged in Ronnie's class on National High Five Day. we need to find the total number of unique pairs of students in Ronnie's class Since there are 20 people in the class, each person needs to give a high five to every other person, excluding themselves.
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