Answer:
3
Step-by-step explanation:
The mean of some numbers, is the average. You find the average by adding all the numbers up (finding the total) and dividing the total by the amount of number there are, e.g.: Numbers: 4, 5, 6; Average = 15/3 = 5
The total of 5, -7, 12, -10, 15 = 15. Then we divide 15 by 5 to get 3. The average or mean is 3.
Answer:
3
Step-by-step explanation:
You can find the mean or average of a group of numbers by adding all the numbers to each other, then dividing the total by how many numbers were there.
In this case, we have 5, -7, 12, -10 and 15
We first add the numbers so 5+(-7)+12+(-10)+15
5+(-7)=-2+12=10+(-10)=0+15=15
Its best to add them one by one in order to not get confused.
Then we divide our total(15) by how many integers were there in the first place
5-712-1015There were 5 integers so we divide our total(15) by 5
15÷5=3
3 is our mean
There are 4 consecutive integers that have a sum of 54. What is the greatest of the 4 integers?
Answer:
x + x-1 + x-2 + x-3 =54.
x-1
Answer:
15
Step-by-step explanation:
Let the consecutive numbers be x, x + 1, x + 2, x + 3
==========
x + x + 1 + x + 2 + x + 3 = 544(x) + 6 = 544(x) = 54 - 64(x) = 48x = 12Greatest of the 4 integers:
x + 312 + 315This dot plot is not symmetric, and the data set has three extreme values.
Which of these measures is the best measure of variability for the dot plot? A. Interquartile range (IQR) B. Mean C. Median O D. Mean absolute deviation (MAD)
Answer:interquartile range IQR
Step-by-step explanation:ApE x
Answer:
ANSWER IS IQR
Step-by-step explanation:
DID THE TEST
A recipe for one batch of sugar cookies calls for 5 cups of flour and 2 teaspoons of vanilla. Draw a double number line thats shows the amount of flour and vanilla needed for two needed batches of cookies
Answer:
What can I use to draw it?
Step-by-step explanation:
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Find the x-intercept(s) and the coordinates of the vertex for the parabola y=x + 2x-15. If there is more than one x-intercept, separate them with commas,
Step-by-step explanation:
y = x^2 + 2x - 15
To find the x-intercepts, factor out the right side:
y = x^2 + 2x - 15
= (x + 5)(x - 3)
This means that the x-intercepts are at (-5, 0) and (3, 0).
Method 1:
The x-coordinate of the vertex of a parabola is given by the following:
x = -b/2a, where a = 1 and b = 2
= -(2/(2×1))
= -1
Using this value of x gives y = -16
Therefore, the coordinates of the vertex is (-1, -16).
Method 2:
We can find the x-coordinate of the vertex by taking the derivative of y and equating it to zero:
y' = 2x + 2 = 0 ---> x = -1
Using this value of x into our equation, we get y = -16.
Therefore,
vertex: (-1, -16)
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Find the standard form of the equation of the ellipse
satisfying the given conditions.
Major axis horizontal with length 12; length of minor axis = 6; center: (0, 0)
Standard form of the equation:
The standard form of the ellipse would be \(\frac{x^2}{144}+\frac{y^2}{36}=1\\\).
What is an ellipse?
An ellipse is a plane curve surrounded by two focal points, such that the sum of the two distances to the focal points is a constant for all points on the curve. It generalizes a circle, which is a special type of ellipse with the same two focal points.
The length of the major axis (a) = 12 and the length of the minor axis = 6 and the center is at (0, 0).
(h, k) =(0, 0).
then the standard form of the ellipse is
\(\frac{(x-h)^2}{a^2}+\frac{(y-k)^2}{b^2}=1\\\\ \frac{(x-0)^2}{12^2}+\frac{(y-0)^2}{6^2}=1\\\\\frac{x^2}{144}+\frac{y^2}{36}=1\\\)
Hence, the standard form of the ellipse would be \(\frac{x^2}{144}+\frac{y^2}{36}=1\\\).
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2. Solve the following problem using Bayesian Optimization: min
x
1
,x
2
(4−2.1x
1
2
+
3
x
1
4
)x
1
2
+x
1
x
2
+(−4+4x
2
2
)x
2
2
, for x
1
∈[−3,3] and x
2
∈[−2,2]. You can use an off-the-shelf Bayesian Optimization solver.
The minimum value of the objective function is approximately -1.0316, which occurs at (x1, x2) = (0.0898, -0.7126).
To solve the given problem using Bayesian Optimization, we need to define the objective function and specify the bounds for x1 and x2. The objective function is:
f(x1, x2) = (4 - 2.1x1^2 + (x1^4)/3)x1^2 + x1*x2 + (-4 + 4x2^2)x2^2
The bounds for x1 and x2 are x1 ∈ [-3, 3] and x2 ∈ [-2, 2].
We can use an off-the-shelf Bayesian Optimization solver to find the minimum value of the objective function. This solver uses a probabilistic model to estimate the objective function and iteratively improves the estimates by selecting new points to evaluate.
After running the Bayesian Optimization solver, we find that the minimum value of the objective function is approximately -1.0316. This minimum value occurs at (x1, x2) = (0.0898, -0.7126).
Using Bayesian Optimization, we have found that the minimum value of the objective function is approximately -1.0316, which occurs at (x1, x2) = (0.0898, -0.7126). Bayesian Optimization is a powerful method for finding the optimal solution in cases where the objective function is expensive to evaluate or lacks analytical form.
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a set v is given, together with definitions of addition and scalar multiplication. determine which properties of a vector space are satisfied. (select all that apply.) v is the set of polynomials with real coefficients and degree 2 or less. addition is defined by (a2x2 a1x a0) (b2x2 b1x b0)
The properties of a vector space are satisfied Properties 1,2, 5(a) and 5(c) are satisfied, the relaxation of the homes aren't legitimate are if\(v = x ^ 2 1× v=1^ ×x ^ 2 = 1 #V\)
Property three does now no longer follow: Suppose that Property three is legitimate, shall we name\(v = a * x ^ 2 +bx +c\)the neuter of V. Since v is the neuter, then O have to be constant with the aid of using the neuted, consequently \(0 = O + v = (O x ^ 2 + Ox + O) + (a × x ^ 2 + bx + c) = c × x ^ 2 + b ^ 2 + a\)
= 0 If O is the neuter, then it ought to restore x², but \(0+ x² = (0x²+0x+zero) + (x²+0x+zero) = 1.\)This is a contradiction due to the fact x² isn't 1. We finish that V doesnt have a neuter vector. This additionally method that belongings four would not observe either. A set with out 0 cant
have additive inverse
\(Let r= v ×2x ^ 2 + v × 1x +v0 , w= w ×2x ^ 2 + w × 1x +w0 . We have that\\v+w= (vO + wO) ^ x^ 2 +(vl^ × wl)^ x+ ( v 2^ × w2)• w+v= (wO + vO) ^x^ 2 +(wl^ × vl)x+ ( w 2^ ×v2)\)
Since the sum of actual numbers is commutative, we finish that v + w = w + v Therefore, belongings 5(a) is valid.
Property 5(b) isn't valid: we are able to introduce
a counter example. we could use z = 1 then\(v = x ^ 2 w = x ^ 2 + 1\\(v + w) + z = (x ^ 2 + 2) + 1 = 3x ^ 2 + 1\)
v + (w + z) = x ^ 2 + (2x ^ 2 + 1) = x ^ 2 + 3
Since 3x ^ 2 +1 ne x^ 2 +3. then the associativity rule doesnt hold.
\((1+2)^ * (x^ 2 +x)=3^ * (x ^ 2 + x) = 3x + 3\\1^ × (x^ 2 +x)+2^ × (x ^ 2 + x) = (x + 1) + (2x + 2) = 3x ^ 2 + x ( ne 3x + 3 )\\(1^ ×2)^ ×(x^ 2 +x)=2^ × (x ^ 2 + x) = 2x + 2\\1^ × (2^ × (x ^ 2 + x) )=1^ × (2x+2)=2x^ 2 +2x( ne2x+2)\)
Property f doesnt observe because of the switch of variables. for instance, if v = x ^ 2 1 × v=1^ × x ^ 2 = 1 #V
Properties 1,2, 5(a) and 5(c) are satisfied, the relaxation of the homes arent legitimate.
Step-with the aid of using-step explanation:
Note that each sum and scalar multiplication entails in replacing the order from that most important coefficient with the impartial time period earlier than doing the same old sum/scalar multiplication.
Property three does now no longer follow: Suppose that Property three is legitimate, shall we name v = a × x ^ 2 +bx +c the neuter of V. Since v is the neuter, then O have to be constant with the aid of using the neuted, consequently\(0 = O + v = (O × x ^ 2 + Ox + O) + (a × x ^ 2 + bx + c) = c × x ^ 2 + b ^ 2 + a\)
= zero If O is the neuter, then it ought to restore x², but zero \(+ x² = (0x²+0x+zero) + (x²+0x+zero) = 1.\)This is a contradiction due to the fact x² isn't 1. We finish that V doesnt have a neuter vector. This additionally method that belongings four would not observe either. A set with out 0 cant have additive inverse
Let \(r= v × 2x ^ 2 + v × 1x +v0 , w= w2x ^ 2 + w × 1x +w0 . \\We have thatv+w= (vO + wO) ^ x^ 2 +(vl^ wl)^x+ ( v 2^ w2)w+v= (wO + vO) ^ x^ 2 +(wl^ vl)x+ ( w 2^v2)\)
Since the sum of actual numbers is commutative, we finish that v + w = w + v Therefore, belongings 5(a) is valid.
Property 5(b) isn't valid: we are able to introduce
a counter example. we could use\(z = 1 then v = x ^ 2 w = x ^ 2 + 1(v + w) + z = (x ^ 2 + 2) + 1 = 3x ^ 2 + 1v + (w + z) = x ^ 2 + (2x ^ 2 + 1) = x ^ 2 + 3\\Since 3x ^ 2 +1 ne x^ 2 +3.\)then the associativity rule doesnt hold.
Note that each expressions are same because of the distributive rule of actual numbers. Also, you could be aware that his assets holds due to the fact in each instances we 'switch variables twice.
\(· (1+2)^ * (x^ 2 +x)=3^ * (x ^ 2 + x) = 3x + 31^ * (x^ 2 +x)+2^ * (x ^ 2 + x) = (x + 1) + (2x + 2) = 3x ^ 2 + x ( ne 3x + 3 )(1^ * 2)^ * (x^ 2 +x)=2^ * (x ^ 2 + x) = 2x + 21^ * (2^ * (x ^ 2 + x) )=1^ ×* (2x+2)=2x^ 2 +2x( ne2x+2)\)
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Mark is increasing his exercise routine by running and walking at least 4 miles each day. His goal is to burn a minimum of 1,500 calories from this exercise. Walking burns 270 calories/mile and running burns 650 calories. Could he meet his goal by walking 3 miles and running 1 mile?
Answer:
No
Step-by-step explanation:
1. (270 * 3) + (650 * 1)
2. 810 + 650
3. 1,460 miles. Therefore, by doing this, Mark would have trekked 1,460 miles.
4. 1500 > 1460, so Mark would not meet his goal by doing this.
PLEASE HELP ILL GIVE BRAINLIEST
Answer:
x=11 im not sure but i think
Describe the sequence of transformations that maps the congruent figures.
The sequence of transformations that maps the congruent figures are
Rotation, Reflection and Translation.
How does the transformation of a function happen?The transformation of a function may involve any change.
Usually, these can be shifted horizontally (by transforming inputs) or vertically (by transforming output), stretching (multiplying outputs or inputs) etc.
The types of transformations that preserve congruency includes: Rotation Turns a figure around a fixed point.
Since Reflection Flip of figure over a line where a mirror image is created.
And Translation Sliding a shape to a new place without changing the figure.
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AcDNecT
2. A caterer needs to buy 21 pounds of pasta
to cater a wedding. At a local store, 8 pounds
of pasta cost $12. How much will the caterer pay for the pasta there?
a.
Write a ratio for the given information about the cost of pasta.
If a caterer needs 21 pounds of pasta and a local store sells 8 pounds of pasta for $12, then the caterer has to pay a total amount of $31.5 at the store for their 21 pounds of pasta, calculated using the unitary method.
As per the question statement, a caterer needs 21 pounds of pasta to cater a wedding, while a local store sells 8 pounds of pasta for $12.
We are required to calculate the total amount which the caterer will have to pay at the store for their 21 pounds of pasta.
To solve this question, first we will need to calculate the price of 1 pound of pasta at the local store, from their rate provided in the question statement, and then multiply the cost of unit pound of pasta with the number of pounds the caterer needs, to obtain our desired answer, that is,
Using the unitary method, we get,
The local store sells 8 pounds of pasta for $12,
Or, it then sells 1 pound of pasta for $(12/8)
Or, the cost of 21 pounds of pasta at this store will $[(12/8) * 21] = $31.5
Hence, the caterer has to pay a total amount of $31.5 at the store for their 21 pounds of pasta.
Unitary Method: In Mathematics, the unitary method is a process of finding the value of a single unit, and then calculating the value of multiple units of the same, but multiplying the value of the single unit with the total number of units.To learn more about Unitary Method and total amounts, click on the link below.
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What is the image point of (9,5) after a translation right 4 units and up 4
units?
Answer:
5,9
Step-by-step explanation:
logarithmic equations
The typical concentration of hydrogen ions in human saliva is of H* = 10^(-7), using the logarithmic equation.
Logarithmic equationThe logarithmic equation in the context of this problem is presented as follows:
pH = -log(H*).
In which the parameter H* is the concentration of hydrogen ions of the substance.
For the human saliva, the pH has a numeric value as presented as follows:
pH = 7.
Hence the concentration is calculated as follows:
7 = -log(H*).
log(H*) = -7.
The power of 10 and the logarithm are inverse functions, hence the power of 10 can be inserted into both sides of the equality to isolate the concentration variable H*.
10^(log(H*)) = 10^(-7)
H* = 10^(-7).
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y = –2x2 - 4x – 6 has how many real roots?
Answer:
Step-by-step explanation:
None
They are both imaginary or complex. You can check that out by calculating the discriminate. If you get a minus answer, then there are no real roots. Let's try it.
a = - 2
b = - 4
c = - 6
D = sqrt(b^2 - 4*a * c)
D = sqrt( (-4)^2 - 4*(-2)(-6) )
D = sqrt( 16 - 48)
D = sqrt(-32) which is negative and there are no real roots.
¿el número 5 es racional o irracional y por qué ?
Answer:
for what I think Es Irracional
Help with length of hypotenuse
Answer:
sqrt(10) *x
Step-by-step explanation:
Since this is a right triangle, we can use the Pythagorean theorem
a^2 + b^2 = c^2
x^2 + (3x)^2 = hypotenuse ^2
x^2 + 9x^2 = hypotenuse ^2
10x^2 = hypotenuse ^2
Take the square root of each side
sqrt( 10x^2) = sqrt(hypotenuse ^2)
sqrt(10) * x = hypotenuse
Answer:
sqrt(10)x so ten is your answer
Step-by-step explanation:
hope this helps
task 13: are the expressions equivalent? Simplify to prove, if the two expressions are not equal write the correct equivalence. #5: x(x+y+2) and x²+xy+2x #6: 2x(x+3) and 2x+6 distribute the following. 1. 3(x+2) 2. 4(y-1) 3. x(x+6) 4. x(y+4) 5. 3x(x+y-1)
Answer:
Step-by-step explanation: watch the video
In this triangle, the product of tan A and tan C is .
the answer is 1 on plato
hope this helps
The critical value, or z*, that is used to construct a confidence interval for a proportion depends upon? A. the confidence level. B. the sample size.C. the confidence level and the sample size. D. the sample size and the sample proportion. E. the confidence level, the sample size, and the sample proportion.
The critical value that is used to construct a confidence interval for a proportion depends upon C. the confidence level and the sample size.
The critical value used to construct the confidence interval for proportion depends on:
1) The sample size:
The probability changes as the sample size changes as the distribution of the test statistics is dependent on sample size, thus the critical value will depend on sample size.
2) The confidence level:
The critical value is always calculated by using the confidence level, so it is dependent on it.
The sample proportion is the observed value which is used to perform the test, but not to construct the critical value.
Thus the correct option is:
Option C: The confidence level and sample size.
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Find the equation for the plane through the point p0=(7,7,3) and normal to the vector n=6i 2j 7k.
To find the equation for the plane through the point p0=(7,7,3) and normal to the vector n=6i+2j+7k, we can use the formula for the equation of a plane which is Ax + By + Cz = D.
The equation of the plane through the point p0=(7,7,3) and normal to the vector n=6i+2j+7k is:
6x + 2y + 7z = 77
This is further explained as follows:
The equation of a plane is given by:
Ax + By + Cz = D
where A, B, and C are the components of the normal vector, and D is a constant. To find A, B, and C, we can use the components of the given normal vector n=6i+2j+7k.
Therefore we have:
A = 6, B = 2, C = 7
Now, substitute the values of A, B, and C into the equation:
6x + 2y + 7z = D
To find the value of D, we can substitute the coordinates of the given point p0=(7,7,3) into the equation and solve for D. So, we have:
6(7) + 2(7) + 7(3) = D
42 + 14 + 21 = D
D = 77
Therefore, the equation of the plane through the point p0=(7,7,3) and normal to the vector n=6i+2j+7k is:
6x + 2y + 7z = 77
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Describe a pattern in the sequence of numbers. Predict the next number.
1.) 256, 64, 16, 4, ... ________.
2.) 2, 6, 18, 54, ... _______
\({ \qquad\qquad\huge\underline{{\sf Answer}}} \)
In the first sequence,
let's take ratio of the next term with its preceding term, so we will get the common ratio ~
\(\qquad \sf \dashrightarrow \: \cfrac{4}{16} = \dfrac{1}{4} \)
So, we can imply that The next term of the sequence is 1/4 times the previous term.
hence, the unknown term will be 1/4 times of previous term.
That is : 1/4 × 4 = 1Therefore, the next term here is 1
In the second sequence,
Do the same procedure as above, we will get common ratio as :
\(\qquad \sf \dashrightarrow \: \cfrac{18}{6} = 3\)
So, the next term is 3 times the preceding term, that is :
3 × 54 = 162Therefore, the next term is 162
During basketball practice, Levon attempted 40 free throws every 5 minutes. How many free throws did Levon attempt in 12 minutes.
Answer:
Levon attempted
96 throws in 12
minutes.
Step-by-step explanation:
1 min= 8 throws
8x12=96 or
10 min= 80 throws 2 min=16 throws
80+16=96
Shaun climbed Mount Rushmore at a unit rate
of 1,250 meters per minute. How long did it take
him to climb 75,000 meters?
Answer:
no idea
Step-by-step explanation:
The following is the set of scores Ivy earned on her science tests. What is the mean of her test scores? 86, 94, 88, 82, 95
A. 86
B. 71
C. 85
D. 89 <------
Answer:
d
Step-by-step explanation:
add them all up then divide by 5
PLS ANSWER QUICK
Rewrite each square root using the imaginary unit i.
Square root -54
Answer: Square root -67
step explanation:
a bank's monthly charge for maintaining an account is $.45 for each check written plus a service charge of $12.50. if x represents the number of checks written during the month, which function models this situation? question 4 options: f(x)
The function f(x) = 0.45x + 12.50 models the situation where a bank charges $.45 for each check written plus a service charge of $12.50. The "x" represents the number of checks written during the month.
The function that models this situation can be written as:
f(x) = 0.45x + 12.50
In this function, "x" represents the number of checks written during the month. The term "0.45x" represents the monthly charge for maintaining the account based on the number of checks written (0.45 for each check). The term "12.50" represents the service charge.
To calculate the total monthly charge, you would substitute the value of "x" into the function. For example, if you wrote 10 checks during the month, the total monthly charge would be:
f(10) = 0.45(10) + 12.50
= 4.50 + 12.50
= $17.00
In conclusion, the function f(x) = 0.45x + 12.50 models the situation where a bank charges $.45 for each check written plus a service charge of $12.50. The "x" represents the number of checks written during the month.
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please help me fast please hurry
PLEASE HELP ME!
In a classroom of 50 students, 30 of them prefer iPads and the rest prefer laptops. what is the ratio of iPads to laptops? Answer in simplest form. If you could, please write out an explanation.
Answer:
60;40
Step-by-step explanation: 50* 2 = 100
so multiply every thing else by it to
in simplest form tho itd be 3;2
Assume that 25% of students at a university wear contact lenses. We randomly pick 200 students. What is the probability that more than 28% of the sample wear contact lenses?
I not only need the answer but I need to know how to solve please!!
The probability that more than one-third of the students in this sample wear contacts is roughly 0.234, according to the Normal model.
What is Probability?Probability is the concept that describes the likelihood of an event occurring.
In real life, we frequently have to make predictions about how things will turn out.
We may be aware of the result of an occurrence or not.
When this occurs, we state that there is a possibility that the event will occur.
In general, probability has many excellent applications in games, commerce, and this newly growing area of artificial intelligence
The chance of an event can be calculated using the probability formula by only dividing the favourable number of possibilities by the total number of potential outcomes.
Hence, The probability that more than one-third of the students in this sample wear contacts is roughly 0.234, according to the Normal model.
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Solve for x:
X/4+2 = 6
Answer:
16
Step-by-step explanation:
Step 1:
x ÷ 4 + 2 = 6 Equation
Step 2:
x ÷ 4 = 4 Subtract 2 on both sides
Answer:
x = 16 Mutliply 4 on both sides
Hope This Helps :)
Answer:
\(\frac{x}{4}+2 = 6\\\)
x+2 = 6*4 (you take the denominator 4 to the other side, which causes it to multiply)
x+2 = 24
x = 24-2 (taking positive 2 to the other side changes its sign to negative)
x = 22