The number of primes up to 250 is 54.
To find the number of primes up to 250, we need to check each number up to 250 to determine whether it is prime or not. A prime number is a positive integer greater than 1 that has no positive divisors other than 1 and itself.
We can use a simple algorithm to determine whether a number is prime or not. We start by checking if the number is divisible by 2. If it is divisible by 2, then it is not prime unless it is 2 itself. If the number is not divisible by 2, we check if it is divisible by any odd numbers starting from 3 up to the square root of the number.
Applying this algorithm to each number up to 250, we can count the number of primes. By doing so, we find that there are 54 prime numbers up to 250.
Therefore, the main answer is that there are 54 primes up to 250.
Note: The explanation provided assumes that by "Primitives," you meant prime numbers.
The second part of the question.
Remainder when "zo" is divided by 11:
To find the remainder when "zo" is divided by 11, we need to assign numerical values to the letters and then perform the division.
In this case, let's assign the values as follows:
z = 26
o = 15
Now, we calculate the value of "zo":
zo = 26 * 10 + 15 = 265
To find the remainder when 265 is divided by 11, we perform the division:
265 ÷ 11 = 24 remainder 1
Therefore, the remainder when "zo" is divided by 11 is 1.
Remainder when "ah!" is divided by 37:
To find the remainder when "ah!" is divided by 37, we assign numerical values to the letters and then perform the division.
In this case, let's assign the values as follows:
a = 1
h = 8
Now, we calculate the value of "ah!":
ah! = 1 * 10 + 8 = 18
To find the remainder when 18 is divided by 37, we perform the division:
18 ÷ 37 = 0 remainder 18
Therefore, the remainder when "ah!" is divided by 37 is 18.
Note: The explanation assumes that the letters in "zo" and "ah!" represent their corresponding positions in the English alphabet (e.g., a = 1, b = 2, etc.).
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1\ solve the system using elimination. 4x+5y=2 -2x+2y=8
What does it mean if your inference is valid
In logic, an inference is a process of deriving logical conclusions from premises known or assumed to be true. The term derives from the Latin term, which means "bring in." An inference is said to be valid if it's based upon sound evidence and the conclusion follows logically from the premises.
hope this helped <3
Larry spends half of his workday teaching piano lessons. If he sees 6 students, each for the same amount of time, what fraction of his workday is spent with each student? *
Answer:
1/12
Step-by-step explanation:
bc ik
Answer:
the right answer is 1/12
Step-by-step explanation:
78/0000
67
777
7654
Will give Brainliest to whoever helps me.
Answer:
BJCJCJStep-by-step explanation:
Answer:
1. B
2. J
3. C
4. F
5. C
6. J (I think, Sorry if u get it wrong)
Step-by-step explanation:
Thank me later lol.
Find the area of the triangle shown
6 cm
8 cm
O 48 cm squared
O 24 cm squared
O 14 cm squared
O Not here
Area = 79.2 ft2
9 ft
4.2 ft
h
This season, the probability that the Yankees will win a game is 0.56 and the probability that the Yankees will score 5 or more runs in a game is 0.46. The probability that the Yankees lose and score fewer than 5 runs is 0.32. What is the probability that the Yankees would score fewer than 5 runs when they win the game? Round your answer to the nearest thousandth.
The probability that the Yankees would score fewer than 5 runs when they win the game is 0.32.
Let the events be A: Yankees win a game
B: Yankees score 5 or more runs
C: Yankees lose a game
D: Yankees score fewer than 5 runs
We are given the following probabilities:
P(A) = 0.56 (probability of winning)
P(B) = 0.46 (probability of scoring 5 or more runs)
P(C and D) = 0.32 (probability of losing and scoring fewer than 5 runs)
We want to find the probability of scoring fewer than 5 runs when they win the game, which is P(D|A).
We can use Bayes' theorem to find this probability:
P(D|A) = P(A and D) / P(A)
Using the definition of conditional probability:
P(D|A) = P(D and A) / P(A)
We know that P(D and C) = P(C and D), as both events represent the same outcome.
Using the fact that the sum of the probabilities of mutually exclusive events is equal to 1:
P(D and C) + P(B and C) = 1
Rearranging the equation:
P(D and C) = 1 - P(B and C)
Now, let's find P(D and A):
P(D and A) = P(D and A and C) + P(D and A and not C)
P(D and A) = P(D and A and C) + 0
P(D and A) = P(C and D and A)
Substituting the probabilities we have:
P(D|A) = P(C and D) / P(A)
P(D|A) = P(C and D) / P(C and D) + P(B and C)
P(D|A) = 0.32 / (0.32 + P(B and C))
We need to find P(B and C), which we can calculate using the given probabilities:
P(B and C) = P(C and B)
P(B and C) = P(C) - P(C and D)
P(B and C) = 1 - P(C and D)
P(B and C) = 1 - 0.32
P(B and C) = 0.68
Now we can substitute this value into the equation:
P(D|A) = 0.32 / (0.32 + 0.68)
P(D|A) = 0.32 / 1
P(D|A) = 0.32
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The dimensions of two square pyramids formed of sand are shown. How much more sand is in the pyramid with the greater volume?
Answer:
The pyramid with the greater volume has 5in^3 more sand
Step-by-step explanation:
Given
Pyramid A
[tex]B = 25in^2[/tex] -- Base Area
[tex]h = 9in[/tex] --- height
Pyramid B
[tex]B = 30in^2[/tex]
[tex]h = 7in[/tex]
See attachment for pyramids
The volume of a square pyramid is:
[tex]V = \frac{1}{3}Bh[/tex]
First, calculate the volume of pyramid A
[tex]V_A = \frac{1}{3} * 25in^2 * 9in[/tex]
[tex]V_A = 25in^2 * 3in[/tex]
[tex]V_A = 75in^3[/tex]
Next, the volume of pyramid B
[tex]V_B = \frac{1}{3} * 30in^2 * 7in[/tex]
[tex]V_B = 10in^2 * 7in[/tex]
[tex]V_B = 70in^3[/tex]
To calculate how much more sand the greater pyramid has, we simply calculate the absolute difference (d) between their volumes
[tex]d = |V_B - V_A|[/tex]
[tex]d = |70in^3 - 75in^3|[/tex]
[tex]d = |- 5in^3|[/tex]
[tex]d = 5in^3[/tex]
Solve the following initial value problem. y2 – 8y + 12, y(0) = 3 dx
The solution of the initial value problem is y= 3e2x - c2e2x +c2e6x.
Given y2 – 8y + 12, y(0) = 3
y2 – 8y + 12 = 0
The above equation is a quadratic equation, let us factorize it.
(y - 6)(y - 2) = 0y = 6 or y = 2
Therefore, the general solution of the differential equation isy = c1e2x + c2e6x............(1)
Now, let us apply the initial condition y(0) = 3 in the above general solution to find the value of c1 and c2.
y(0) = c1e2(0) + c2e6(0)3 = c1 + c2
On solving, we getc1 + c2 = 3c1 = 3 - c2
Substitute the value of c1 in equation (1)
y = (3 - c2)e2x + c2e6x = 3e2x - c2e2x + c2e6x...........(2)
The above equation is the required solution of the given initial value problem.
Therefore, the solution of the given initial value problem is
y = 3e2x - c2e2x + c2e6x.
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please whats this?
Answer:
5 ³⁄₁₀ or ⁵³⁄₁₀
Step by step explanation:
Answer:
[tex]5 \frac{3}{10}[/tex]
Find the value of
66 + 57 − 43 + 38 − 25 + 19 − 7 + = 64 + 59 − 41 + 36 − 23 + 17 – 5
Answer:
212, pretty sure
Step-by-step explanation:
Pediatricians recommend no more than 2 hours of screen time daily for middle school aged children. A teacher at a local middle school would like investigate whether on average, students at her school get more than 2 hours of daily screen time. If the average screen time for students at this middle school is 2 hours, which of the following is more likely? • that a random sample of 30 students get more than 3 hours of screen time daily, on average, • that a random sample of 40 students get more than 3 hours of screen time daily, on average That a random sample of 40 students get more than 3 hours of screen time daily, on average That a random sample of 30 students get more than 3 hours of screen time daily, on average Both are equally likely
If the average screen time for students at this middle school is 2 hours, the option that is more likely is option C: that a random sample of 40 students will get more than 3 hours of screen time daily, on average, compared to a random sample of 30 students.
What is the random sample?To determine the likelihood, consider sampling variability and sample size.
Larger samples = more accurate estimates. Larger samples=more stable estimates.If we randomly sample 30 middle school students, the sample mean is likely to be closer to the population mean of 2 hours.
Sample size of 30 is small, increasing chances of random variation impacting sample mean. If one can select a larger sample of 40 students, the population mean estimate is said to be more accurate and less affected by fluctuations.
A sample of 40 students may have an average screen time of over 3 hours per day.
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A parabola can be drawn given a focus of (2, 4)(2,4) and a directrix of x=4x=4. Write the equation of the parabola in any form.
Answer:
The equation of the parabola is;
x = -(1/4)·(y - 4)² + 3
Step-by-step explanation:
The given focus of the parabola is f = (2, 4)
The directrix of the parabola is x = 4
The vertex form of the equation of the parabola can be expressed as follows;
x = a·(y - k)² + h
(y - k)² = 4·p·(x - h)
Where;
(h, k) = The vertex of the parabola
(h + p, k) = The focus of the parabola
x = h - p = The directrix
Therefore, k = 4
h + p = 2...(1)
h - p = 4...(2)
∴ 2·h = 6
h = 6/2 = 3
From equation (1), we have;
p = 2 - 3 = -1
p = -1
From the equation of the parabola in the form, (y - k)² = 4·p·(x - h), we have;
The equation of the parabola is (y - 4)² = 4 × (-1) ·(x - 3)
Therefore, we have;
(y - 4)² = -4·x + 12
4·x = 12 - (y - 4)²
The equation of the parabola is x = -(1/4)·(y - 4)² + 3
y² -8·y + 16 = -4·x + 12
4·x = 8·y - y² - 16 + 12 = 8·y - y² - 4
x = 2·y - y²/4 - 1 = -y²/4 + 2·y - 1
The equation of the parabola can also be written in the form
x = -y²/4 + 2·y - 1 = -0.25·y² + 2·y - 1
Ž + 7
+7 = 12
Help me with this
And a step by step
Determine is an outlier is present in the given data set: 43, 69, 78, 88, 54, 73,
54, 59,70
Answer:
43
Step-by-step explanation:
43 is the most the lowest number while the others are around the same range
Hope this helps! Pls mark brainliest!
What are the values of x that would make the line j parallel to line k? Help me please!
Answer:
For line j to be parallel to line k, then x has to be equal to 0
Step-by-step explanation:
if line j is parallel to line k, then the two angles are equal.
They are equal because they would be alternate angles and alternate angles are equal in value
Thus,
3x + 10 = 5x + 10
5x-3x = 10-10
2x = 0
x = 0
please help!!!!! simplify
Answer:
Pretty sure it's B
Step-by-step explanation:
Given: SSb = 21 SSW = 142 dfb = 3 dfw = 290 What is the value for the mean squares between?
For the given values of SSb, SSW, dfb, and dfw, the value for the mean squares between (MSb) is 7.
To find the mean squares between (MSb), you need to divide the sum of squares between (SSb) by the corresponding degrees of freedom (dfb).
MSb = SSb / dfb
Using the values provided:
SSb = 21
dfb = 3
MSb = 21 / 3
MSb = 7
Therefore, the value for the mean squares between (MSb) is 7.
Mean squares, also known as the mean squared error (MSE), is a statistical measure used to assess the average squared difference between the predicted and actual values in a dataset.
It is commonly used in various fields, including statistics, machine learning, and data analysis, to evaluate the performance of a prediction model or to quantify the dispersion or variability of a set of values.
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can ya'll do me a favor and cheak out my boy LOOCY LACE on you,tube all caps
Answer:
ok (tho i advise you use brainly for education purposes only :)
Step-by-step explanation:
The area of a rectangle is found using the formula A=lw, where l is the length of the rectangle and w is the width. Multiply each pair of factors and express the area of each rectangle as a single polynomial in terms of x.
l=x+14; w=3x+1
Answer:
A(x) = 3x² + 43x + 14
Step-by-step explanation:
Area of a rectangle = length × width
length = x + 14
width = 3x + 1
Area of a rectangle = length × width
= (x + 14)(3x + 1)
= 3x² + x + 42x + 14
= 3x² + 43x + 14
express the area of each rectangle as a single polynomial in terms of x.
A(x) = 3x² + 43x + 14
The solids are similar. Find the surface area of the red solid.
Answer:
756
Step-by-step explanation:
The ratio of areas is the square of the scale factor.
First, we find the scale factor from the blue solid to the red solid.
scale factor = 6/4 = 3/2
The ratio of areas is the square of the scale factor:
ratio of areas = (3/2)^2 = 9/4
volume of red solid = volume of blue solid * ratio of areas
volume of red solid = 336 m^2 * 9/4 = 756 m^2
Answer: S = 756 m^2
2) Michael decides to go for a cycle ride. He rides a
distance of 80 km at an average speed of 24 km/h.
Work out how long Michael’s ride takes
Step-by-step explanation:
REMEMBER D/S×T (triangle)
therefore, finding time
D/S
80/24
make sure to press the degrees button on your calculator
3 hours and 20 minutes
If A is the angle between the vectors u =(5, 0,82 ) and v = (0,0,1). What is the value of cosine of A? (Round off the answer upto 2 decimal places) Question 2 If A and B are matrix: A-la a2] = rai аз as bı [b1 b2 B= [bz b4] If a1 = 4, a2=7, a3 = 8, 24 = 4, also, b1 = 5, b2 = -1, b3 = 3, b4 = 0, then find inner product of (A, B)? (Round off the answer upto 2 decimal places) Question 1 u = (2+26 1. 1 + 88 1,0). Find norm of uie. I u 11? (Round off the answer upto 2 decimal places)
The analysis of the matrices and vectors components indicates;
a) coa(A) = 1
b) <A, B> = 37
c) ||u|| ≈ 91.79
What is a vector?A vector is an mathematical object has magnitude and direction. Vector quantities can be represented by an ordered list of numbers, representing the components of the vector.
a) The cosine of the angle between the vectors, can be obtained from the dot product formula as follows;
cos(A) = (5)·(0) + (0)·(0) + (82)·(1) = 82
The magnitudes of the vectors are; ||u|| = √(5² + 0² + 82²) = 82
||v|| = √(0² + 0² + 1²) = 1
cos(A) = (u·v)/(||u||·||v||) = 82/82 = 1
cos(A) = 1
b) The inner product of the matrices; [tex]A=\begin{bmatrix} 4&7 \\ 8& 4 \\\end{bmatrix}[/tex] and [tex]B = \begin{bmatrix}5 &-1 \\ 3&0 \\\end{bmatrix}[/tex] can be found from the sum of the product of the corresponding entries of the matrices as follows;
<A, B> = 4 × 5 + 7 × (-1) + 8 × 3 + 4 × 0 = 37
The inner <A, B> = 37
c) The norm of a vector is defined as the square root of the sum of the squares of the components of the vector, therefore;
||u|| = √(|2 + 26i|² + |1 + 88i|² + |0|²)
|2 + 26i| = √(2² + 26²) = √(680)
|1 + 88i| = √(1² + 88²) = √(7745)
||u|| = √((√(680))² + (√(7745))² + (0)²) = √(8425) ≈ 91.79
The norm of the vector is ||u|| ≈ 91.79
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Best Buy decreased the cost of a Sony flat screen monitor from $525 to $430. What is the percent
of decrease?
The degree of precision of a quadrature formula whose error term is is 5 2
For the quadrature formula, the degree of precision is 2. The precision level of a quadrature formula indicates the maximum degree of polynomial functions that the formula can accurately integrate without any error. So, option b is the correct answer.
In this case, the error term of the quadrature formula is given as (h²/3) f(3)(ξ), where h represents the step size and f(3)(ξ) represents the third derivative of the function being integrated.
To determine the degree of precision, we need to find the highest power of h in the error term. Since the error term is (h²/3) f(3)(ξ), the highest power of h is 2.
Therefore, for the quadrature formula whose error term is (h²/3) f(3)(ξ), the degree of precision is 2.
Therefore the correct answer is option b.2.
The question should be:
The degree of precision of a quadrature formula whose error term is (h²/3) f(3)(ξ) is:
a. 1
b. 2
c. 3
d. 4
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suppose you wish to whirl a lead fishing weight of mass m in a vertical circle using a string that is 0.20 m long. what minimum speed must the fishing weight have in order to maintain a circular path?
The fishing weight must have a minimum speed of approximately 1.98 m/s to maintain a circular path with a 0.20 m long string.
In order to maintain a circular path, the centripetal force (Fc) must be equal to or greater than the weight force (mg) of the fishing weight. The centripetal force is given by the equation Fc = (mv^2) / r, where m is the mass of the fishing weight, v is the speed, and r is the radius (0.20 m).
To find the minimum speed required, we can equate the centripetal force and weight force:
(mv^2) / r = mg
Simplifying the equation:
v^2 = rg
v = sqrt(rg)
Substituting the values of r (0.20 m) and g (acceleration due to gravity, approximately 9.8 m/s^2):
v = sqrt(0.20 * 9.8)
v ≈ 1.98 m/s
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What is 1/2 ( f - 10 ) when f= 16
The following data gives an approximation to the integral M = S'f(x) dx = = 2.0282. Assume M = N, (h) + kyhº + k_h4 + ..., N, (h) = 2.2341, N, then N2(h) = 1.95956 0.95957 This option This option 2.23405 2.01333 This option O This option Romberg integration for approximating "', (x) dx gives R21 = 2 and R22 = 2.55 then R41 = 5.16 0.35 This option This option 4.53 2.15 O This option This option When approximating Sof(x)dx using Romberg integration, R4,4 gives an approximation of order: h10 h8 h4 h6
The value of N₂(h) for the given approximation is 1.95956. Richardson extrapolation allows us to estimate the integral with higher accuracy by combining two approximations with different step sizes. So, the correct answer is option a.
To approximate the integral [tex]M=\int\limits^1_0 {f(x)} \, dx[/tex] using the given data, we can use Richardson extrapolation.
Let N₁(h) be the approximation with step size h, and N₁(h/2) be the approximation with step size h/2.
We can express the error in terms of a power series as M = N₁(h) + k₂h² + k₄h⁴ + ...
Using Richardson extrapolation, we can eliminate the term with the highest power of h by taking a weighted sum of the two approximations:
[tex]N_2(h) = \frac{4N_1(\frac{h}{2}-N_1(h) )}{3}[/tex]
Substituting the given values N₁(h) = 2.2341 and N₁(h/2) = 2.0282:
[tex]N_2(h)=\frac{4(2.0282) - 2.2341}{3}[/tex]
N₂(h) = 1.95956
Therefore, the value of N₂(h) is approximately 1.95956. The correct answer is option a. 1.95956.
The question should be:
The following data gives an approximation to the integral[tex]M=\int\limits^1_0 {f(x)} \, dx[/tex] N₁(h) = 2.2341, N₁(h/2) = 2.0282. Assume M = N₁(h) + k₂h² + k₄h⁴ + ..., then N₂(h) = ?
a. 1.95956
b. 0.95957
c. 2.23405
d. 2.01333
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Find the interest earned if you place $76.43 into an account that pays 21.5% simple interest, and leave it in for 3 years.
A = $125.73
I = A - P = $49.30
hey!
Equation:
A = P(1 + rt)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 21.5%/100 = 0.215 per year.
Solving our equation:
A = 76.43(1 + (0.215 × 3)) = 125.72735
A = $125.73
The total amount accrued, principal plus interest, from simple interest on a principal of $76.43 at a rate of 21.5% per year for 3 years is $125.73.
------------------------
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Suppose the monthly cost for the manufacture of golf balls is C(x) = 3390 + 0.48x, where x is the number of golf balls produced each month. a. What is the slope of the graph of the total cost function? b. What is the marginal cost (rate of change of the cost function) for the product? c. What is the cost of each additional ball that is produced in a month? CE a. What is the slope of the graph of the total cost function? b. What is the marginal cost (rate of change of the cost function) for the product? c. What is the cost of each additional ball that is produced in a month?
The slope of the graph of the total cost function represents the rate of change of the total cost with respect to the number of golf balls produced each month, the total cost function is given by C(x) = 3390 + 0.48x.
How to explain the informationThe coefficient of x in the equation represents the slope of the graph. Therefore, the slope of the total cost function is 0.48.
In this case, the marginal cost is equal to the derivative of the cost function with respect to x. Taking the derivative of C(x) = 3390 + 0.48x with respect to x, we get:
C'(x) = 0.48
Therefore, the marginal cost for the product is 0.48.
The cost of each additional ball that is produced in a month is equal to the marginal cost. From the previous calculation, we determined that the marginal cost is 0.48. Therefore, the cost of each additional ball produced in a month is $0.48.
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