What is 15/20 simplest form
Answer:
the simplest form of 15/20 is 3/4
what is the probability that a family of two children has two boys given that the first child is a boy
Since the first child is a boy, this means we need to find the probability of another boy. This is 1/2 since we assume each gender has the same chance of happening.
At the King School, 55% of the students take a bus to school. If 220 students take a bus to school, how many students are there in total?
Answer:
400 student
55/100 * x(unknown) = 220
55x/100 =220
CROSS MULTIPLY
55X = 22000
X = 22000/55
X = 400
The total number of students at the King School is 440.
Given that, at the King School, 55% of the students take a bus to school.
What is percentage?Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".
Let the total number of students be x
So, 55% of x =220
⇒ 55/10 ×x=220
⇒ 0.55x=220
⇒ x=220/0.55
⇒ x=440
Therefore, the total number of students at the King School is 440.
To learn more about the percentage visit:
brainly.com/question/24159063.
#SPJ5
if 1 pound=Rs.135 and dollar 1=Rs105 then convert pound 63 into dollar
Answer:
81
Step-by-step explanation:
63×135=8505
8505÷105=81#
In 63 pounds, there are equivalent 81 dollars.
What is unit conversion?A unit conversion expresses the same property as a different unit of measurement.
For instance, time can be expressed in minutes instead of hours, while distance can be converted from miles to kilometers, or feet, or any other measure of length.
Given is that -
1 pound = Rs.135
1 dollar = Rs. 105
Now, we can write that 1 rupee as -
Rs. 1 = 1/105 dollar
So, in 1 pound we can write -
1 pound = 135 x 1/105 dollars
63 pounds = 63 x 135 x 1/105 = 81 dollars
Therefore, in 63 pounds, there are equivalent 81 dollars.
To solve more questions on triangles, visit the link-
https://brainly.com/question/2773823
#SPJ2
The Department of Energy was also eager to sign on, in part because it wanted to learn about how radiation causes genetic O combinations O mutations O fulminations O corrections.
The Department of Energy was also eager to sign on, in part because it wanted to learn about how radiation causes genetic mutations.
What is mutation ?An modification in the nucleic acid sequence of an organism's, virus's, or extrachromosomal DNA is referred to as a mutation. DNA or RNA can be found in the viral genome.
Any alteration to a cell's DNA sequence. Mistakes in cell division can result in mutations, as can exposure to environmental DNA-damaging substances.
Ionizing radiation may harm genetic material (mutations) in gonads or germ cells, which can result in disorders with a genetic component (hereditary defects). Malformations, metabolic issues, immune system deficits, etc. might occur from them.
To learn more about Mutation refer to :
https://brainly.com/question/23837428
#SPJ1
The initial and terminal points of RS are given below. Write the vector as a linear combination of standard unit vectors i and j.
R(11,-4) and S(10, 3)
The vector as a linear combination of standard unit vectors i and j is,
⇒ - i + 7j
We have to given that;
The initial and terminal points of RS are given below,
⇒ R(11, -4) and S(10, 3)
Hence, We can write as;
R = 11i - 4j
S = 10i + 3j
Hence, The vector as a linear combination of standard unit vectors i and j is,
⇒ RS = S - R
= (10i + 3j) - (11i - 4j)
= - i + 7j
Thus, The vector as a linear combination of standard unit vectors i and j is,
⇒ - i + 7j
Learn more about the subtraction visit:
https://brainly.com/question/17301989
#SPJ1
Give the definition of a Cauchy sequence. (i) Let (In)neN be a Cauchy sequence with a subsequence (Pm)neN satisfying limkom = 2, show that lim.In = a. (ii) Use the definition to prove that the sequence (an)neN defined by an is a Cauchy sequence.
\(an - am| ≤ |an - an+1| + |an+1 - an+2| +...+ |am-1 - am| < ε/2 + ε/2 +...+ ε/2= m-n+1\)times \(ε/2≤ ε(m-n+1)/2\), which shows that (an)neN is a Cauchy sequence.
A Cauchy sequence is a sequence whose terms become arbitrarily close together as the sequence progresses.
It is a sequence of numbers such that the difference between the terms eventually approaches zero.
In other words, for any positive real number ε, there exists a natural number N such that if m,n ≥ N then the difference between In and Im is less than ε.
(i) Let (In)neN be a Cauchy sequence with a subsequence (Pm)neN satisfying limkom = 2, show that lim.In = a.
As the sequence (In) is Cauchy, let ε > 0 be given.
Choose N such that |In - Im| < ε/2 for all m, n > N.
Since the sequence (Pm) is a subsequence of (In), there exists some natural number M such that Pm = In for some m > N.
Now, choose k > M such that |Pk - 2| < ε/2.
Then, for all n > N, we have|In - a| ≤ |In - Pk| + |Pk - 2| + |2 - a|< ε/2 + ε/2 + ε/2= ε, which shows that lim.In = a.
(ii) Use the definition to prove that the sequence (an)neN defined by an is a Cauchy sequence.
Let ε > 0 be given.
Then there exists some natural number N such that |an - am| < ε/2 for all m, n > N, since (an)neN is Cauchy.
What are the solutions of the inequality 2x² x 6 0?
The solutions of the inequality \(2x^{2} + x - 6 = 0\) are 3/2, -2. This can be found by using the Quadratic Formula, which states that for any quadratic equation of the form \(ax^{2} +bx + c = 0\), the solutions are \(x = -b +/-\sqrt{b^{2} -4ac} /2a\).
Discriminant: b² - 4 a c = 1 - 4(2)(-6) = 1 + 48 = 49
Solution 1: x = \(-b + \sqrt{b^{2} -4ac} /2a\) = (-1 + √49)/(2×2) = (-1 +7)/4 = 6/4 = 3/2
Solution 2: x = \(-b-\sqrt{b^{2} -4ac} /2a\)= (-1 - √49)/(2×2) = -8/4 = -2
So, the two solutions are 3/2 and -2.
The equation can also be written as,
\(2x^{2} +4x -3x-6=0\)
\(2x(x+2) -3(x+2) = 0\)
\((2x-3)(x+2) = 0\)
x = 3/2, -2
To know more about solutions:
https://brainly.com/question/30089986
#SPJ4
Examine the terms below. Write a sentence explaining what the terms have in common.
a. indentured servant b. debtorWhy did George Calvert establish the colony of Maryland?
Answer:
If a debtor wasn't able to pay his/her debt off they would be forced to become an indentured servant and work there debt off.
For English Catholics, who were discriminated at the time. They settled in the colony of Maryland to escape persecution under the hands of Anglicans.
The total charge for a yearly Internet DVD rental membership is $231. A registration fee of $15 is paid up front, and the rest is paid monthly. How much do new members pay each month, m?
Answer:
New members pay each month = $18 per month
Step-by-step explanation:
Given:
Total rental membership = $231
Advance registration fee = $15
Find:
New members pay each month
Computation:
Number of month in year = 12
Fee after registration = $231 - 15$
Fee after registration = $216
New members pay each month = Fee after registration / Number of month in year
New members pay each month = 216 / 12
New members pay each month = $18 per month
Answer:
Step-by-step explanation:
UR MOM
1 1/7 times 3/5 plz answer now
Answer:
24/35 or 0.6857142
Step-by-step explanation:
Answer:
\( \frac{24}{35} \)
alternative form:
\( 0.685714286 \)
Step-by-step explanation:
\(1 \frac{1}{7} \times \frac{3}{5} \\ multiply \: 1 \: and \: 7 \\ \\ \frac{7 + 1}{7} \times ( \frac{3}{5} ) \\ add \: 7 \: to \: 1 \\ \\ \frac{8}{7} \times ( \frac{3}{5} ) \\ remove \: parenthesis \: and \: put \\numerator \: times \: numerator \: and \\ denominator \: times \: denominator \\ \\ \frac{8 \times 3}{7 \times 5} \\ do \: the \: multiplications \\ \\ \frac{24}{35} \)
Testing: H0 : μ=32.4
H1 : μ=32.4
Your sample consists of 32 values, with a sample mean of 30.6. Suppose the population standard deviation is known to be 3.99. a) Calculate the value of the test statistic, rounded to 2 decimal places. z= ___
b) At α=0.025, the rejection region is z>2.24
z<−2.24
z<−1.96
z>1.96
z<−2.24 or z>2.24
z<−1.96 or z>1.96
c) The decision is to Fail to reject the null hypothesis Accept the null hypothesis Reject the null hypothesis Accept the alternative hypotheis d) Suppose you mistakenly rejected the null hypothesis in this problem, what type of error is that? Type I Type II
the decision is to `Reject the null hypothesis`.d) Suppose you mistakenly rejected the null hypothesis in this problem, what type of error is that?The probability of Type I error is α. Since α = 0.025 (given in (b)), the type of error made is Type I error. Hence, the correct option is `Type I` error.
Calculate the value of the test statistic, rounded to 2 decimal places. `z = ___`The formula to calculate the test statistic z-score is:z = (X - μ) / (σ / sqrt(n))whereX = Sample mean, μ = Population mean, σ = Population standard deviation, and n = Sample sizeSo, the value of z-test statistic,z = (X - μ) / (σ / sqrt(n))= (30.6 - 32.4) / (3.99 / sqrt(32))= -3.60Therefore, the value of the test statistic, rounded to 2 decimal places is `z = -3.60`.b) At α=0.025,
the rejection region is`z > 1.96` or `z < -1.96`Let us calculate the value of z-score. Here, `z = -3.60` which is less than `-1.96`.Hence, the rejection region is `z < -1.96`.c)
To know more about statistic visit:
https://brainly.com/question/32201536
#SPJ11
Use MatLab to sketch a direction field for the given ODE on the specified range. If the ODE is autonomous, visually identify the equilibrium solutions, if any.
(b) u'(t) = (u^2)(t) + t + 1, for -2 <= t <= 2 and -2 <= u <= 2
(e) u'(t) = u(t)(u(t) - 3), for -2 <= t <= 5 and -2 <= u <= 5
(g) u'(t) = tsin(u) - (t^2)/4, for -2 <= t <= 5 and -2 <= u <= 5.
I've never used MatLab, so I was researching how to do this but I can't find anything similar to these problems. Please help, thanks!
To sketch the direction field for the given ODEs in MATLAB, we can use the `quiver` function. Here's the MATLAB code for each ODE:
(b) u'(t) = (u^2)(t) + t + 1:
```matlab
% Define the range
t = linspace(-2, 2, 20);
u = linspace(-2, 2, 20);
% Create a meshgrid for t and u
[T, U] = meshgrid(t, u);
% Calculate the derivatives
dudt = U.^2 + T + 1;
dvdt = ones(size(dudt));
% Normalize the derivatives
norm = sqrt(dudt.^2 + dvdt.^2);
dudt = dudt./norm;
dvdt = dvdt./norm;
% Plot the direction field
quiver(T, U, dudt, dvdt);
axis tight;
xlabel('t');
ylabel('u');
```
(e) u'(t) = u(t)(u(t) - 3):
```matlab
% Define the range
t = linspace(-2, 5, 20);
u = linspace(-2, 5, 20);
% Create a meshgrid for t and u
[T, U] = meshgrid(t, u);
% Calculate the derivatives
dudt = U.*(U - 3);
dvdt = ones(size(dudt));
% Normalize the derivatives
norm = sqrt(dudt.^2 + dvdt.^2);
dudt = dudt./norm;
dvdt = dvdt./norm;
% Plot the direction field
quiver(T, U, dudt, dvdt);
axis tight;
xlabel('t');
ylabel('u');
```
(g) u'(t) = tsin(u) - (t^2)/4:
```matlab
% Define the range
t = linspace(-2, 5, 20);
u = linspace(-2, 5, 20);
% Create a meshgrid for t and u
[T, U] = meshgrid(t, u);
% Calculate the derivatives
dudt = T.*sin(U) - T.^2/4;
dvdt = ones(size(dudt));
% Normalize the derivatives
norm = sqrt(dudt.^2 + dvdt.^2);
dudt = dudt./norm;
dvdt = dvdt./norm;
% Plot the direction field
quiver(T, U, dudt, dvdt);
axis tight;
xlabel('t');
ylabel('u');
```
After running each code snippet in MATLAB, you should see a plot with arrows representing the direction field for the given ODE on the specified range. The equilibrium solutions, if any, can be visually identified as points where the arrows converge or where the direction field becomes horizontal.
Learn more about MATLAB here:
brainly.com/question/30763780
#SPJ11
Emily used 27 centimeters of tape to wrap 3 presents. How much tape will Emily need in all if she has to wrap 5 presents? Assume the relationship is directly proportional.
? centimeters
Answer: 45 centimeters
Step-by-step explanation:
27 - 3
divide both by 3
9 - 1
multiply by 5
45 - 5
Answer:
45 Centimeters.
Step-by-step explanation:
27 / 3 = 9
9 x 5 = 45
Scott grades 15 papers every 15 minutes. how many papers can scott grade in 130 mintues? round to the nearest tenth?
Answer:
130 papers.
Step-by-step explanation:
1 min per paper therefore 130 mins = 130 papers
:)
Convert 120 lbs to kilograms. (1 kg = 2.2 lbs)
Answer:
54.4
Step-by-step explanation:
Answer: 54.55kg
Step-by-step explanation:
120 ÷ 2.2 = 54.55 kg
Tanya has a garden with a trench around it. The garden is a rectangle with length 2.5m and width 2m. The trench and the garden together make a rectangle with length 3.5m and width 3m. Find the area of just the trench
Answer:
5.5m^2
the area of just the trench is 5.5 m^2
Step-by-step explanation:
The Area of trench only is the total area(trench and garden) minus the Area of garden
Area of trench only = total area(trench and garden) - Area of garden
Area = length × breadth
Substituting the given dimensions;
Total area = 3.5 × 3 = 10.5 m^2
Area of garden = 2.5×2 = 5 m^2
Area of trench only = 10.5 m^2 - 5 m^2
Area of trench only = 5.5m^2
the area of just the trench is 5.5 m^2
Answer:
5 1/5
Step-by-step explanation:
Which expression is an equivalent expression of 12x + 10 + 4y?
Is there an answer key?
Answer:
2(6x+5+2y)
Step-by-step explanation:
The reciprocal of y^1/2 is 5
Work out the value of y.
Answer:
y = 1/25
Step-by-step explanation:
Reciprocal of y^(1/2) : 1/y^(1/2)
1/y^(1/2) = 5
y^(1/2) = 1/5
y = (1/5)^2
Please answer correctly !!!!!! Will mark brainliest !!!!!!!!!
Answer:
-2 = not in domain
0= in domain
3= in domain
work out the area of the triangle 35.7m 17m 28.9m 13.6m
Answer:
N/A
Step-by-step explanation:
the question is not in depth could you add a photo
Mary has scored 78 , 60 , 82 , 94 , and 88 on her previous five tests . What score does she need on her next test so that her average ( mean ) is 80?
Answer:
She needs to score 78 on her next test
Step-by-step explanation:
\(\frac{78+60+82+94+88+x}{6}=80\)
Collect like terms;
\(\frac{402+x}{6}=80\)
Multiply both sides by 6;
402 + x = 480
Subtract 402 from both sides;
x = 78
A bag of marbles comes with 3 blue marbles, 2 red marbles, and 5 yellow marbles. What is the ratio of red to yellow?
Answer:
2:5
Step-by-step explanation:
Total marbles: 10
red: 2
yellow: 5
2:5
find the measure of this angle indicated need help ...50 points
80° is the value of angle in quadrilateral .
What is a quadrilateral in mathematics?
A rectangle is defined as a two-dimensional shape with four sides, four vertices, and four corners. There are two main types:
concave and convex.
There are also various subcategories of convex quadrilaterals such as trapezoids, parallelograms, rectangles, rhombuses and squares.
In quadrilateral ,
X + 100 + 100 + 80 = 360°
X + 280° = 360°
X = 360° - 280°
X = 80°
Learn more about quadrilateral
brainly.com/question/29934440
#SPJ1
A manufacturer of tennis balls has a daily cost of C(x) = 0. 01x2 – 10x + 4000, where x is the number of tennis balls produced. How many tennis balls should be produced to minimize the cost? What is the minimum cost?
A cake shop bakes a variety of brownies. the top-selling brownies are ones with toppings of chocolate chip, walnuts, or both. a customer enters the store. the probability that the customer will pick both toppings is 0.4. what is the probability that they will pick neither the chocolate chip nor the walnut toppings?
The probability that the customer will pick neither the chocolate chip topping nor the walnut topping is 0.6.
What is probability?Probability refers to the chance of occurrence of an event.
Let E be an event. Then, the probability of E = P(E)
=> P(E) = \(\frac{Number Of Favourable Outcomes Of Event E}{Total Number Of Outcomes}\)
Given: The probability that the customer will take both toppings = 0.4
We know that the total probability of an event occurring = 1.
Thus, the probability that the customer will take neither the chocolate chip toppings nor the walnut toppings = 1 - 0.4 = 0.6
To learn more about probability, refer to the link: brainly.com/question/24756209
#SPJ4
Example 2. Yolanda's club has 40 members. Its
rules state that 80% of them must be present in
order to vote. At least how many members must
be present to have a vote?
a(n) ____ is a mathematical representation of an object created by a special software
A(n) MODEL is a mathematical representation of an object created by a special software.
In computer science, a model is a mathematical abstraction of a system, process, or phenomenon that is intended to be simulated or executed on a computer system. A model is used to represent a system or process as a set of mathematical equations or logical rules in order to simulate or analyze it with a computer program.
It can be a physical object, such as a car or building, or an abstract concept, such as an economic system or a social network. In general, a model can be a simple or complex representation of a real-world object or process, and it can be used for a variety of purposes, such as predicting future outcomes, testing hypotheses, or designing new systems.
Learn more about computer program
brainly.com/question/14588541
#SPJ11
he defect rate for your product has historically been about 1.50% For a sample size of 200, the upper and lower 3-sigma control chart limits are:
ucl = (enter your response as a number between 0 and 1, rounded to four decimal places).
The defect rate for your product has historically been about 1.50% For a sample size of 200, the upper and lower 3-sigma The upper control limit (UCL) is approximately 0.0450.
The upper control limit (UCL) for a 3-sigma control chart is given by:
\(\[UCL\) = defect rate + 3 * sqrt((defect rate * (1 - defect rate)) / sample size)
Substituting the values, where the defect rate is 1.50% (0.015) and the sample size is 200, we get:
\(\[UCL = 0.015 + 3 \times \sqrt{\frac{0.015 \times (1 - 0.015)}{200}}\]\)
Calculating this expression, we find:
\(\[UCL \approx 0.0450\]\)
Therefore, the upper control limit (UCL) is approximately 0.0450.
To know more about limit visit -
brainly.com/question/33111620
#SPJ11
Use the first three terms of the binomial theorem to approximate 3.5^6.
Answer:
2065.5
Step-by-step explanation:
You have to approximate the following calculation 3.5^6
The binomial theorem is given by:
\((a+b)^n=\Sigma_{k=0}^{k=n}\left[\begin{array}{c}n&k\end{array}\right] a^{n-k}b^k\) (1)
You can express the number 3as follow:
\(3.5^6=(3+0.5)^6=(3+\frac{1}{2})^6\) (2)
by comparing the equation (1) with the equation (2) you have
a = 3
b = 1/2
To calculate the first three terms of the binomial theorem you use k=3. You replace the values of a, b, n and k in the equation (1):
\((3+\frac{1}{2})^6=\Sigma_{k=0}^{k=6}\left[\begin{array}{c}6&k\end{array}\right] (3)^{6-k}b^k\)
You only take the first three terms:
\((3+\frac{1}{2}^6)\approx(1)(3)^6(\frac{1}{2})^0+(6)(3)^5(\frac{1}{2})^1+\frac{6\cdot 5}{1\cdot 2}(3)^4(\frac{1}{2})^2\\\\(3+\frac{1}{2}^6)\approx729+729+\frac{1215}{2}=2065.5\)
By using the first three terms of bynomial theorem you obtain 2065.5