Answer:
it A or B
Step-by-step explanation:
the other two C and D dont make sense to what the question is asking
Trying to Figure it out. How to Solve Vector Problems
Answer:
The magnitude of the vector is 5.
Step-by-step Explanation:
The magnitude of a vector |v| can be found using the Pitagoras theorem, according to the figure below:
The magnitude can be calculated as:
\(|v|=\sqrt[]{x^2+y^2}\)In this exercise,
x = -3
y = 4
So,
\(\begin{gathered} |v|=\sqrt[]{3^2+4^2} \\ |v|=\sqrt[]{9+16} \\ |v|=\sqrt[]{25} \\ |v|=5 \end{gathered}\)The magnitude of the vector is 5.
what type of study is this? thirty-six students were randomly assigned to listen to mozart (18 students) or a relaxation tape (18 students). the iq of the students were measured afterwards.
"At random, 36 students received a relaxation tape or Mozart (18 students) (18 students). The students' IQs were then measured "is an example of a Randomized experiment.
What is a Randomized experiment?Randomized experiments are the ones that in science provide the highest degree of validity and reliability for statistical assessments of treatment effects.
Inference that is based on randomization is particularly crucial in survey sampling and experimental design.
Randomization in the statistical theory of experiment design refers to the distribution of experimental units among treatment groups at random.
For instance, using randomization, the patients should be assigned to either the new medicine or the conventional drug control in an experiment that compares a novel drug to a standard drug.
"Mozart (18 pupils) or a relaxation tape were given to 36 students at random (18 students).
Then, the pupils' IQs were evaluated "is an illustration of a random experiment.
Therefore, "at random, 36 students received a relaxation tape or Mozart (18 students) (18 students). The students' IQs were then measured "is an example of a Randomized experiment.
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5.2.19
Challenge A company's stock began the day at $25.75 per share. That price drops by $1.08 each hour. What is the price per share after 4 hours? What would it be after 20 hours if this rate continues? Use pencil and paper. Explain what the signs of the answers mean in this context.
The price per share after hours is
nothing dollars.
Answer:
The price per share after 4 hours is $21.43
The price per share after 20 hours is $4.15
Step-by-step explanation:
Equations
The price of the company's stock is initially at $25.75 per share. Each hour the price drops by $1.08. This condition can be modeled by the function:
\(P(t)=25.75-1.08t\)
Where t is the time in hours.
The sign means the function is decreasing as time passes.
When t=4 hours, the price will be:
\(P(4)=25.75-1.08\cdot 4=21.43\)
The price per share after 4 hours is $21.43
Now find the price when t=20 hours
\(P(20)=25.75-1.08\cdot 20=4.15\)
The price per share after 20 hours is $4.15
simplify like terms 2x-5x
Answer:
-3x
Step-by-step explanation:
Subtract 2 from 5
Hope this helped, Have a great day!!
Answer:
-3x
Step-by-step explanation:
Combine like terms. Like terms are terms with the same amount of variables. Note that both terms (2x & -5x) both have one x in all.
Subtract the coefficients:
2x - 5x = -3x
-3x is your answer.
~
When constructing an angle bisector, the compass must be used to make three arcs. Do all three arcs need to have the same radius? Explain.
- Yes, because then the marks are equidistant from each other.
- Yes, because you need the points of intersection of the angle and arcs to form a parallelogram.
- No; the second two arcs must have the same radius but it can be different from the first.
- No; any three radii will work.
The verdict which is true about the radius of all three arcs when constructing an angle bisector is; - No; the second two arcs must have the same radius but it can be different from the first.
The correct answer option is option C.
Which is true about the radiuses of all three arcs when constructing an angle bisector?Recall that an angle at point, O is formed by the intersection of two lines; say lines A and B.
Hence, in a bid to draw the Angie bisector of the angle; AOB, three arcs are needed.
The first arc is an arc drawn by placing the pivot of the compass at the point, O and drawing an arc which intersects lines A and B. The radius of this first arc in discuss can be any value.
Subsequently, the other two arcs are propagated using the points of intersection of the first arc with both lines such that the two arcs intersect.
It is however noteworthy to know that these two arcs must have the same radius.
Ultimately, the second two arcs must have the same radius but it can be different from the first.
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Which has the greatest variance?
{5,5,5,5,5)
{1, 1, 1, 1, 21)
{1,3,5,7,9)
{3,4,5,6,7)
Answer
1,3,5,7,9
Step-by-step explanation:
Define the domain of the following:
{-2, -1, 0, 2, 5}
{-2, -1, 0, 1, 2, 3, 4, 5}
All Real Numbers
{3, -1, 3, 1, 2}
The domain of the relation in the graph is:
{-2, -1, 0, 2, 5}
How to define the domain for the graph?A relation maps elements from one set (the domain) into elements from another set (the range).
Such that the domain is represented in the horizontal axis.
In the graph, we can see the points:
{(-2, -3), (-1, -1), (0, 3), (2, 1), (5, 2)}
The domain is the set of the first values of these points, then the domain is:
{-2, -1, 0, 2, 5}
The correct option is the first one.
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a confidence interval for a population mean a. estimates the population range b. estimates a likely interval for a population mean c. estimates a likelihood or probability d. estimates
Let X(n) be the number of letters printed by procedure Print Xs() below if the input is n (where n ≥ 1). (i) Give the exact formula for X(n) using the notation. (ii) Give the exact closed-form formula for X(n) expressed as a polynomial function. (iii) Give the asymptotic value of X(n) using the e-notation. Justify your answer. procedure PrintXs(n) for i 1 to 4n+ 1 for j← 1 to i do print ("X")
the exact formula for X(n) is given by the sum of i from 1 to 4n + 1. The closed-form formula for X(n) is (4n + 1)(4n + 2)/2, expressed as a polynomial function. The asymptotic value of X(n) is approximately 4n^2, representing the growth rate as n approaches infinity.
(i) The exact formula for X(n) can be determined by analyzing the procedure PrintXs(n) and counting the number of times the letter "X" is printed. In this case, the outer loop runs for 4n + 1 iterations, and for each iteration, the inner loop runs i times. Thus, the total number of "X" letters printed is given by the sum of i from 1 to 4n + 1.
(ii) To express X(n) as a closed-form polynomial function, we can simplify the sum mentioned above. By using the formula for the sum of an arithmetic series, the closed-form formula for X(n) can be written as X(n) = (4n + 1)(4n + 2)/2.
(iii) The asymptotic value of X(n) can be expressed using the e-notation, which represents an estimate of the growth rate. In this case, as n approaches infinity, the dominant term in the expression (4n + 1)(4n + 2)/2 is 4n^2. Therefore, we can express the asymptotic value of X(n) as X(n) ~ 4n^2.
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A playgroup class has 80 students, and 20 teachers.
Ratio: 80:20
SIMPLIFY THIS RATION DOWN>
Answer: 4:1
Step-by-step explanation:
Divide by two to get in simplest form.
80 ÷ 2 = 40
20 ÷ 2 = 10
Make a ration with 40 and 10.
40:10
Make 40:10 simpler by dividing by 10.
40 ÷ 10 = 4
10 ÷ 10 = 1
Make 4 and 1 into a ration.
4:1
Answer:
4 : 1
Step-by-step explanation:
Given the ratio
80 : 20 ← divide both parts by 20
= 4 : 1 ← in simplest form
Please help me I need help
In ΔJKL, the measure of ∠L=90°, JK = 5.8 feet, and LJ = 4.4 feet. Find the measure of ∠K to the nearest degree.
Answer:
The answer is 49.
Step-by-step explanation:
\sin K = \frac{\text{opposite}}{\text{hypotenuse}}=\frac{4.4}{5.8}
sinK=
hypotenuse
opposite
=
5.8
4.4
\sin K = \frac{4.4}{5.8}
sinK=
5.8
4.4
K=\sin^{-1}(\frac{4.4}{5.8})
K=sin
−1
(
5.8
4.4
)
K=49.343\approx 49^{\circ}
K=49.343≈49
The recipe calls for 1 1/2 lbs. of ground beef. how much ground beef will jenny need to make enough meat loaf for everyone?
Total amount of ground beef is 7.5 lbs
What is unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
a) The recipe for the meat loaf used by Jenny can serve a total of 8 people.
Total people = 40
Number of each ingredient
= 40 / 8
= 5
b) As, recipe contains 1 1/2 lb (1.5 lbs) of ground beef,
So, Total amount of ground beef = 1.5 lbs * 5 = 7.5 lbs
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Your question is incomplete, probably the complete question/missing part is:
Jenny is throwing a surprise birthday party for her best friend Katie. She has decided to make Katie’s favorite dish, meat loaf. There will be a total of 40 people at the party. Answer the following questions:
• The recipe says it serves 8 people. By what number should Jenny multiply each ingredient to make enough meat loaf for everyone? 5
• The recipe calls for 1 1/2 lbs. of ground beef. How much ground beef will Jenny need to make enough meat loaf for everyone?
the pithag tells us how the ____ lengths of ______ triangles are related
Pythagorean theorem tells us how the side lengths of right triangles are related.
The Pythagorean theorem, also known as the Pythagorean identity, states that the sum of the squares of the lengths of the two sides forming the right angle is equal to the square of the length of the hypotenuse in any right triangle (the side opposite the right angle). In other words, the Pythagorean theorem can be used to calculate the length of the hypotenuse given the lengths of the two sides of a right triangle.
This relationship can be written as the equation:
\(a^2 + b^2 = c^2\)
where a and b are the lengths of the legs, and c is the length of the hypotenuse. The Pythagorean Theorem is named after the ancient Greek mathematician Pythagoras, who is credited with its discovery.
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-17+25-42+32+56-69+19-101+62
Ayuda porfa con operaciones
Answer:
es -35
-229+194 = -35
a jar contains 20 pennies, 15 nickels, 3 dimes and 12 quarters. find the probability of selecting a coin that has a value greater than $0.10
a. 24%
b. 0.24%
c. 12%
d. 76%
Answer:d?
Step-by-step explanation:
The general form of an antiderivative of the function f() = csc(a)(6 esc(x) - 8 cot(x)). is F(x) = B + C FORMATTING: Do not include the integration constant in the answer we have added it for you.
The antiderivative of csc(x) is -ln|csc(x) + cot(x)|, and the antiderivative of cot(x) is ln|sin(x)|.
So, the antiderivative of the function is: F(x) = 6(-ln|csc(x) + cot(x)|) - 8(ln|sin(x)|) + B,
where B is the integration constant.
The general form of an antiderivative of the function f(x) = csc(a)(6 sec(x) - 8 cot(x)) is F(x) = B - 6csc(a)tan(x) - 8csc(a)ln|sin(x)|, where B is the integration constant.
This is because we can find the antiderivative by using the linearity property of integrals and the known antiderivatives of sec(x) and cot(x).
Specifically, we have:
∫csc(a)(6 sec(x) - 8 cot(x)) dx
= 6csc(a) ∫sec(x) dx - 8csc(a) ∫cot(x) dx
= 6csc(a) tan(x) - 8csc(a) ln|sin(x)| + C
= B - 6csc(a)tan(x) - 8csc(a)ln|sin(x)|, where C is the integration constant.
Therefore, the general form of an antiderivative of f(x) is F(x) = B - 6csc(a)tan(x) - 8csc(a)ln|sin(x)|.
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6 + 3(x + 4)
PLEASE HELP!!!! I will give brainliest
3x+18
Step-by-step explanation:
Answer:
3x+18
Step-by-step explanation:
Is the answer
answer
Sasha and Jeffrey each want to run for president of their school's student body council. In order to do so, they must collect a certain number of signatures and get a nomination. So far, Sasha has 15 signatures, and Jeffrey has 17. Sasha is collecting signatures at an average rate of 6 per day, whereas Jeffrey is averaging 4 signatures every day. Assuming that their rate of collection stays the same, eventually the two will have collected the same number of signatures. How long will that take? How many signatures will they both have?
Candice and Porter will have collected 23 signatures each in one day using a system of equations.
What are equations?Equations are mathematical statements that claim that two expressions are equal or equivalent.
Equality is depicted using the equation sign (=). Candice Porter
The number of signatures collected for nomination 21 18
Average collection of signatures per day 2 5
Let the total signatures collected by Candice on day x = 21 + 2x
Let the total signatures collected by Porter on day x = 18 + 5x
The day the two candidates will have collected the same signatures is set as equality:
21 + 2x = 18 + 5x
21 - 18 = 5x - 2x
3 = 3x
x = 1
Total signatures collected by on day 1:
Candice = 21 + 2x = 21 + 2(1) = 23
Porter = 18 + 5x = 18 + 5(1) = 23
Thus, using a system of equations, it will take Candice and Porter 1 day to collect the same number of signatures, and each will have 23 signatures.
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Skip drove 55.6 miles on Saturday, and 42 1/2 miles on Sunday. How many miles did he drive during the entire weekend?
Arectangular fish tank measures 35 cm long, 24 cm wide, and 50 cm high. It contains 25 liters of water. How many more liters of water are needed to fill the fish tank completely?
Answer:
i think it is a but i am not sure
Step-by-step explanation:
Look at the
picture. Write and solve an equation to
model the picture. Show your answer as a
multiplication equation with ; as a factor.
The multiplication equation with 1/2 as a factor is 1/2 x 8.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
An expression is simply used to show the relationship between the variables that are provided or the data given regarding an information.
We have the number of halves apples. = 8
Now, the expression of 8 halves apples.
= 1/2 x 8
= 4
Thus, the multiplication equation is 1/2 x 8.
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How to write a multiplication equation with 1/2 as a factor. explain. (picture of 8 halved apples)
in 5-8, find each reciprocal. 5/9 8 7/3 1/12
the answer
155
324
5/9 (87/3(1/12)= 155/324
Find the unit rate.
Round to the nearest hundredth, if necessary.
$170 for 12 ft2
How many district are there in Nepal?
77.
Pavel and Katie share some sweets in the ratio 3: 8.
Katie gets 32 sweets.
How many sweets does Pavel get?
Answer:
Step-by-step explanation:
Katie gets 32/8 = 4 lots of sweets
Pavel gets 4 lots x 3 = 12 sweets
susie wants to buy 5 slices of pizza and a liter of soda that cost $5 for her and her friends. how much does susie need?
Answer:
Amount needed by her \(=\$(5x+5)\)
Step-by-step explanation:
Given: Susie wants to buy 5 slices of pizza and a litre of soda that cost $5 for her and her friends
To find: amount needed by her
Solution:
Let cost of 1 slice of pizza be \(\$x\). Also, a litre of soda costs $5.
Cost of 5 slices of pizza \(=\$5x\)
Cost of a litre of soda \(=\$5\)
Total amount needed by her \(=\$(5x+5)\)
The sum of three consecutive odd integers is 75 . Find the value of the middle of the three.
The value of the middle of the three is 25.
Let x be the first odd integer, then the next two consecutive odd integers are x+2 and x+4. The sum of these three consecutive odd integers is given as 75, so we can write the equation:
x + (x+2) + (x+4) = 75
Simplifying the left side of this equation gives:
3x + 6 = 75
Subtracting 6 from both sides gives:
3x = 69
Dividing by 3 gives:
x = 23
So the first odd integer is 23, and the next two consecutive odd integers are 25 and 27. The middle of these three is the second consecutive odd integer, which is 25. Therefore, the value of the middle of the three is 25.
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minimize f(x) = |x+3| + x^3 S.t. x sum [-2, 6]
Minimization of f(x) = |x+3| + x^3 at the endpoints (-2 and 6) the minimum value of the function is approximately 3.84, which occurs at x= \sqrt{1/3}
within the given interval.
To minimize the function subject to the constraint f(x) = |x+3| + x^3 that x lies in the interval [-2, 6], we need to find the value of x that minimizes f(x) within that interval.
First, let's analyze the function f(x). The absolute value term |x+3| can be rewritten as:
|x+3| =
x+3 if x+3 >= 0
-(x+3) if x+3 < 0
Since the interval [-2, 6] includes both positive and negative values of x+3, we need to consider both cases.
Case 1: x+3 >= 0
In this case, f(x) = (x+3) + x^3 = 2x + x^3 + 3
Case 2: x+3 < 0
In this case, f(x) = -(x+3) + x^3 = -2x + x^3 - 3
Now, we can find the minimum of f(x) within the given interval by evaluating the function at the endpoints (-2 and 6) and at any critical points within the interval.
Calculating the values of f(x) at x = -2, 6, and the critical points, we can determine the minimum value of f(x) and the corresponding value of x.
Since the equation involves both absolute value and a cubic term, it is not possible to find a closed-form solution or an exact minimum value without numerical methods or approximation techniques.
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A store owner puts in an order for product x and product y for a total of 4,000 units. it costs $0.10 per item to ship of product x and $0.04 per item to ship product y. if the total shipping cost is $352, which system of equations can be used to determine how much of product x and product y the store owner bought? startlayout enlarged left-brace 1st row x y = 4,000 2nd row 10 x 4 y = 352 endlayout startlayout enlarged left-brace 1st row 10 x 4 y = 4,000 2nd row x y = 352 endlayout startlayout enlarged left-brace 1st row x y = 4,000 2ndrow 0.1 x 0.04 y = 352 endlayout startlayout enlarged left-brace 1st row 0.1 x 0.04 y = 4,000 2nd row x y = 352 endlayout
The system of equations can be used to determine how much of product x and product y the store owner bought is x + y = 4,000
0.10x + 0.04y = 352
Simultaneous equationproduct xProduct yTotal units of x and y = 4,000 unitsCost of shipping each product x = $0.10Cost of shipping each product y = $0.04Total cost of shipping = $352The equation:
x + y = 4,000
0.10x + 0.04y = 352
Therefore, the system of equations can be used to determine how much of product x and product y the store owner bought is x + y = 4,000
0.10x + 0.04y = 352
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Answer:
C
Step-by-step explanation:
someone help please
Answer:
b
Step-by-step explanation:
102.4..... you're right
Answer:
the answer is 102.4
Step-by-step explanation: