The measure of the angle is 40 degrees.
Let x be the measure of the angle and y be its complement.
The sum of an angle and its complement is 90 degrees, so we have:
\(x+y=90\)
Also, we know that "the measure of an angle of it is 160 less than 4 times its complement", which can be written as:
\(x=4y-160\)
Now we can substitute the first equation into the second equation:
\(4y-160+y=90\)
Simplifying and solving for y, we get:
5y = 250
y = 50
Substituting y = 50 into the first equation gives:
x + 50 = 90
x = 40
Therefore, the measure of the angle is 40 degrees.
To know more about angle:
https://brainly.com/question/14684647
#SPJ4
The table lists the number of members at a local gym for selected years, where year I represents 2002, year 3 represents 2004, and soon.Year* y = number of members2002 1382004 3532006 573802008 720109100Use the ordered pairs (5,73) and (7,80) to find the equation of a line that approximates the data. Express your answer in slope-intercept form. (If necessary, round the slope to the nearest hundredth and the y-intercept to the nearest whole number.)
ANSWER
y = 3.5x + 56
EXPLANATION
The slope of a line passing through points (x1, y1) and (x2, y2) is,
\(m=\frac{y_2-y_1_{}}{x_2-x_1}\)And the slope-intercept form of the equation of a line is,
\(y=mx+b\)Where m is the slope and b is the y-intercept.
In this problem, we have to use points (5, 73) and (7, 80) to find the equation of the line. First, we can find the slope,
\(m=\frac{80-73}{7-5}=\frac{7}{2}\)For now, the equation is,
\(y=\frac{7}{2}x+b\)We have to find the y-intercept, by replacing x and y for the coordinates of one of the given points,
\(80=\frac{7}{2}\cdot7+b\)And solve for b,
\(80=\frac{49}{2}+b\)\(b=80-\frac{49}{2}=\frac{160-49}{2}=\frac{111}{2}\)The equation is,
\(y=\frac{7}{2}x+\frac{111}{2}\)The slope as a decimal is 3.5 and the y-intercept, rounded to the nearest whole number is 56, so the equation is y = 3.5x + 56
10. VABCD is a pyramid with a rectangular base of sides 15 cm by 9 cm. Given that the slant height VQ of the pyramid is 16 cm, find its (i) height, (ii) volume,
The Height and volume of the pyramid is ,
i) Height = 15.35cm
ii) Volume= 690.75 \(cm^3\).
What is pyramid ?
A three-dimensional shape is a pyramid. Flat triangular sides that are joined at a common point known as the apex define the polygonal base of a pyramid. By fusing the bases together at the peak, a pyramid is created. The lateral face, a triangular feature formed by the connection of each base edge to the apex, is present.
Here slant height l = 16cm and sides of the rectangular base is ,
length l = 15cm and width w = 9 cm.
Side length = 9/2 = 4.5cm
Using Pythagorean theorem ,
=> Height h = \(\sqrt{16^2-4.5^2}\)
=> height h = 15.35 cm
Now volume of pyramid is ,
=> V = 1/3 * Base area * height cubic unit
=> V = 1/3 *15*9*15.35
=> V = 690.75 \(cm^3\)
Hence the Height and volume of the pyramid is ,
i) Height = 15.35cm
ii) Volume= 690.75 \(cm^3\).
To learn more about pyramid refer the below link
https://brainly.com/question/218706
#SPJ1
Which of these is not a method to solve systems of
equations?
-Substitution method
-Graphing method
-Addition method
-Difference of squares method
Answer:
Fourth option
Step-by-step explanation:
The answer is the fourth option "difference of squares method." It's not the first option because the substitution method is when you pick one of the equation in a system of equations, solve it for a variable and then plug the variable into the other equation to help solve. It's not the second option because the graphing method is used to solve a system of equations by graphing the equations on the same coordinate plane, it's not the third option because the addition method is also known as the elimination method which is the third method to solving a system of equations. Therefore your answer is the fourth option.
Hope this helps.
sec(pi/2 -x) =csc x true or false
Answer:
true
Step-by-step explanation:
if you rewrite \(sec\left(\frac{\pi }{2}\:-x\right)\) with trigonometric identities:
\(sec\left(\frac{\pi }{2}\:-x\right)\) \(=\frac{1}{\sin \left(x\right)}\)
\(\frac{1}{\sin \left(x\right)}\) \(=\csc \left(x\right)\)
so, yes, \(sec\left(\frac{\pi }{2}\:-x\right)\) \(=\csc \left(x\right)\)
hope this helps!!
30 x 20 in standard form
30 x 20 is
......... 600.
Answer:
600
Step-by-step explanation:
duh
if (x-1)^2 =8 then what is the value of (x+1)^2
Answer:
\(x=12+8\sqrt2\\\\x=12-8\sqrt 2\)
Step by step explanation:
\(\text{Given that,}\\\\~~~~~~~(x-1)^2 = 8\\ \\\implies x-1 =\pm\sqrt 8\\\\\implies x = \pm\sqrt 8 +1\\\\\text{Now,}\\\\~~~~(x+1)^2\\\\=\left(\pm\sqrt 8 +1 +1 \right)^2\\\\=(\pm\sqrt 8 +2)^2\\\\=\left(\pm \sqrt8 \right)^2 + 2 \left(\pm\sqrt 8 \right) \cdot 2 + 2^2\\\\=8+4+4\left(\pm\sqrt 8 \right)\\\\=12+4\left(\pm \sqrt 8\right)\\\\=12\pm 8\sqrt 2\)
1+-2/3--m where m=9/2
Answer:
-25/9
Step-by-step explanation:
1 + (-2/3) - m
Plug in:
1 + (-2/3) - 9/2
1 + 2/3 - 9/2
1/3 - 9/2
-25/9
Hope this helped.
Answer:
4 5/6
Step-by-step explanation:
1+-2/3--m
Subtracting a negative is like adding
1-2/3 +m
1/3+m
m = 9/2
1/3 +9/2
Get a common denominator of 6
1/3 *2/2 +9/2*3/3
2/6 + 27/6
29/6
Changing to a mixed number
4 5/6
Find the difference between points M(6, 16) and Z(-1, 14) to the nearest tenth.
The distance between points M(6, 16) and Z(-1, 14) is approximately 7.1 units.
We can use the distance formula to find the distance between two points in a coordinate plane. The distance formula is:
d = √((x2 - x1)² + (y2 - y1)²)
where (x1, y1) and (x2, y2) are the coordinates of the two points. Substituting the coordinates of M(6, 16) and Z(-1, 14), we get:
d = √((-1 - 6)² + (14 - 16)²) = √(49 + 4) = √53 ≈ 7.1
Therefore, the distance between points M(6, 16) and Z(-1, 14) is approximately 7.1 units.
To learn more about
nearest tenth
brainly.com/question/12102731
#SPJ11
3 less than the square root of a number p
Answer:
what's the number? .. . mmxmxmx
Please help me on my assignment I have to do it before taking the test
Answer:
26
Step-by-step explanation:
w = 5 so 7w is 7 x 5 = 35 and x = 9 so it’s 35 - 9 which is 26
Point N is on line segment MO. Given MN = 16 and NO = 2, determine the
length MO.
Answer: MO =
Submit Answer
attempt 2 out of 2
Answer:
Step-by-step explanation:
MO = MN + NO
= 16 + 2
= 18
How many wholes are in 21/5?
4.2
hope it help u
plzfollow me
Someone help me please
A school is planning a fundraiser for a trip to
Washington D.C. The students plan to sell
pencils with the school logo for $1.50 each.
They compare three online companies that sell
personalized pencils in bulk. Which company
should they choose? How much profit will they
make on each pencil?
Click on each company to reveal the unit price.
Company A: 100 pencils for $44.00
Company B: 150 pencils for $60.00
Company C: 200 pencils for $76.00
172 students went on a field trip. seven buses were filled and 25 students traveled in cars. how many students were in each bus? i need an equation with the steps
The number of students in each bus is 21
Given data
Total number of students on the trip = 172
25 students traveled in cars
7 buses were filled
let the number students on each bus be x
number of students on the bus is gotten by
172 - 25 = 147
so 147 students travelled by bus and the total number of buses is 7.
to get the number of students in each bus we solve as follows
147 / 7 = 21
Hence each bus contains 21 students.
Read more on word problems here: https://brainly.com/question/21405634
#SPJ1
If the 1t peron ave 1/4 of total , 2nd peron ave 2/3 of total and the 3rd peron ave 1/10 which fraction i left to pay for the birthday party
Although part of your question is missing, you might be referring to this full question: If the 1st person saves 1/4 of total, 2nd person saves 2/3 of total, and 3rd person saves 1/10, which fraction left to pay for the birthday party?
The fraction left to pay for the birthday party is 17/30.
The calculation is as follows:
1 * 1/4 = 1/4 … (1)
1/4 * 2/3 = 2/12 … (2)
2/12 * 1/10 = 2/120 … (3)
Fraction left to pay:
= 1 - (1/4 + 2/12 + 2/120)
= 1 - (30/120 + 20/120 + 2/120)
= 1 - (52/120)
= 1 - 13/30
= 30/30 - 13/30
= 17/30
Thus, the fraction left to pay for the birthday party is 17/30.
What is fraction?A fraction is a part of a whole. In arithmetic, the number is expressed as a quotient, where the numerator is divided by the denominator. In a simple fraction, both are integers. A complex fraction has a fraction in the numerator or denominator. In a proper fraction, the numerator is less than the denominator.
Learn more about fraction at: https://brainly.com/question/10354322
#SPJ4
please give me a good answer for 30 points
Answer:
\(measure \: \)
ANSWER :3/50
Step-by-step explanation:
\( \sqrt{3 \: is \: a \: formula \: tht \: has \: equation} \)
MEASURE:92-3 ) DEFIND THE "3"
ANSWER: 3/50
find the diameter of a circle with the circumference of 10cm
(c) 5longleftrightarrow (7) What is the coefficient of the x^(2) term in the expression 5x-4x^(2)+2 ?
So, the coefficient of the x^(2) term in the expression 5x-4x^(2)+2 is -4.
The coefficient of the x^(2) term in the expression 5x-4x^(2)+2 is -4.
A coefficient is the number that is multiplied by a variable in an expression. In this case, the x^(2) term is -4x^(2), so the coefficient is -4.
To find the coefficient of a specific term in an expression, you can simply look at the number that is directly in front of the variable and its exponent. For example, in the term 5x, the coefficient is 5, and in the term 2, the coefficient is 2 (since there is no variable, the coefficient is simply the number itself).
In the expression 5x-4x^(2)+2, the x^(2) term is -4x^(2), so the coefficient is -4. This means that the x^(2) term is being multiplied by -4 in the expression.
So, the coefficient of the x^(2) term in the expression 5x-4x^(2)+2 is -4.
Learn about Coefficient
brainly.com/question/28975079
#SPJ11
Ajay invested $98,000 in an account
paying an interest rate of 2%
compounded continuously. Rashon.
invested $98,000 in an account paying an
interest rate of 2% compounded
annually. After 15 years, how much more
money would Ajay have in his account
than Rashon, to the nearest dollar?
Answer:
Submit Answer
+
attempt 1 out of 2
After 15 years, the amount (future value) that Ajay has in his account than Rashon, to the nearest dollar, is $391.
How the future values are computed:The future values of both investments can be determined using an online finance calculator, using their different formulas for continuous compounding and annual compounding.
Ajay's Investment:Using the formula for future value = Pe^rt
Principal (P): $98,000.00
Annual Rate (R): 2%
Time (t in years): 15 years
Compound (n): Compounding Continuously
Ajay's future value = $132,286.16
A = P + I where
P (principal) = $98,000.00
I (interest) = $34,286.16
Rashon's Investment:Using the formula for future value = P(1 + r/n)^nt
Principal (P): $98,000.00
Annual Rate (R): 2%
Compound (n): Compounding Annually
Time (t in years): 15 years
Rashon's future value = $131,895.10
A = P + I where
P (principal) = $98,000.00
I (interest) = $33,895.10
Ajay's future value = $132,286.16
Rashon's future value = $131,895.10
Difference = $391.06 ($132,286.16 - $131,895.10)
Learn more about the future value at https://brainly.com/question/24703884.
#SPJ1
Which floating-point literal correctly represents the scientific notation value: 2.3 x 10^7?
The floating-point literal that correctly represents the scientific notation value: 2.3 x 10^7 will be A. 2.3e^7.
What is scientific notation?It should be noted that scientific notation simply means. way that's used to express numbers that are either too large or too small to be written in decimal form.
Therefore, it should be noted that the floating-point literal that correctly represents the scientific notation value: 2.3 x 10^7 will be:
= 2.3 × 20^7
= 2.3 × e^7
= 2.3e7
The correct option is A.
Learn more about scientific notation on:
brainly.com/question/106363
#SPJ1
Which floating-point literal correctly represents the scientific notation value: 2.3 x 10^7?
a. 2.3e^7
b. 2.3 × 10e^7
c. 2.3e × 10^7
d. 2.3 × e^7
What is the slope for the equation y=9x+520
Answer:
The slope is 9.
Step-by-step explanation:
This equation is written in slope intercept form, \(y=mx+b\) where m is the slope and b is the y intercept. Based on this equation, the slope is \(\frac{9}{1}\) which is simplified to 9.
which sample size will produce the widest 95onfidence interval, given a sample proportion of 0.5?  a. 60  b. 80
For a given sample proportion of 0.5, the sample size that will produce the widest confidence interval is the largest option given, which in this case is 80.
The sample size that will produce the widest 95% confidence interval, given a sample proportion of 0.5, is option b, 80. This is because the width of the confidence interval is directly proportional to the sample size, meaning that as the sample size increases, the confidence interval becomes narrower.
Additionally, the width of the confidence interval is inversely proportional to the square root of the sample size. Therefore, for a given sample proportion of 0.5, the sample size that will produce the widest confidence interval is the largest option given, which in this case is 80.
Learn more about sample size here:
brainly.com/question/31734526
#SPJ11
find the exact value of the series. ∑n=0[infinity](−1)nπ2n 162n 1(2n 1)!
The exact value of the series ∑n=0infinitynπ^2n/(16^2n * (2n+1)!) is approximately -0.190985.
To find the exact value of the series, we need to evaluate each term and sum them up. Starting with the given expression, we have (-1)^n * π^(2n) / (16^(2n) * (2n+1)!). Breaking down each term, we have (-1)^n, π^(2n), 16^(2n), and (2n+1)!.
The term (-1)^n represents alternating signs, where it alternates between positive and negative for each value of n. The term π^(2n) represents π raised to the power of 2n. The term 16^(2n) represents 16 raised to the power of 2n. The term (2n+1)! represents the factorial of 2n+1.
By substituting the values of each term into the given expression and summing them up from n = 0 to infinity, we can approximate the value to be approximately -0.190985.
For more questions like Series click the link below:
https://brainly.com/question/28167344
#SPJ11
what happens if i squish my submandibular gland
Answer:
I think you would be in lots of pain and probably lose the ability to make saliva.
Step-by-step explanation:
PLEASE HELP WILL MARK BRAINLIEST FOR CORRECT ANSWETS HELP HELP HELP
Answer:
1) (3,5) is the new point
2) P(-1,-4) U(-5,0) N (-2,1)
Step-by-step explanation:
hope this helps. good luck
12. Write the MATLAB statements required to calculate f(t) using the following equation for values of t € [-9,9] in steps of 0.5. f(t) = { (-3t² +5 t 20 3t² +5 t < 0 13. Write a MATLAB function named UniGen that generates a specified number (n) of random values that are uniformly distributed on any given interval specified by values a and b, that is, [a, b].
12. MATLAB code: `f = (-3*t.^2 + 5*t + 20).*(t < 0) + (3*t.^2 + 5*t).*(t >= 0)`
13. MATLAB function: `function random_values = UniGen(n, a, b); random_values = (b - a) * rand(n, 1) + a; end`
MATLAB code to calculate f(t) using the given equation:
t = -9:0.5:9; % Generate values of t from -9 to 9 in steps of 0.5
f = zeros(size(t)); % Initialize f(t) vector
for i = 1:numel(t)
if t(i) < 0
f(i) = -3*t(i)^2 + 5*t(i) + 20;
else
f(i) = 3*t(i)^2 + 5*t(i);
end
end
% Display the results
disp('t f(t)');
disp('--------');
disp([t' f']);
```
This code generates values of `t` from -9 to 9 in steps of 0.5 and calculates `f(t)` based on the given equation. The results are displayed in a tabular format showing the corresponding values of `t` and `f(t)`.
13. MATLAB function UniGen to generate uniformly distributed random values:
function random_values = UniGen(n, a, b)
% n: Number of random values to generate
% a: Start of the interval
% b: End of the interval
random_values = (b - a) * rand(n, 1) + a;
end
This MATLAB function named `UniGen` generates `n` random values that are uniformly distributed on the interval `[a, b]`. It utilizes the `rand` function to generate random values between 0 and 1, which are then scaled and shifted to fit within the specified interval `[a, b]`. The generated random values are returned as a column vector.
Learn more about MATLAB code
brainly.com/question/12950689
#SPJ11
what is the correct answers
Answer:
its c
Step-by-step explanation:
https://lamar.schoolobjects.com/eduphoria_webcontrols/attachmentwriter.aspx?orgguid=9267358f-cea3-413e-9ad1-b591dccc7264&attid=fe4b0fa8-610f-4118-9330-307fd0edc9ba
Answer:
ok
Step-by-step explanation:
the length of a staff meeting in hours is a random variable having the following probability density function 5(x-.5)^5 calculate the expected length of a staff meeting
The expected length of a staff meeting is approximately 12.5 minutes.
what is probability?
Probability is a measure of the likelihood of an event occurring. It is a number between 0 and 1, where 0 means the event is impossible and 1 means the event is certain to happen.
To calculate the expected length of a staff meeting, we need to find the mean of the probability density function given.
The formula for finding the expected value or mean of a continuous random variable with probability density function f(x) is:
E(X) = ∫ x f(x) dx over the range of the variable
Using this formula, we can find the expected length of a staff meeting as follows:
E(X) = ∫ x f(x) dx over the range of the variable
= ∫ 0 to 1 x \(5(x-0.5)^{5}\) dx (since the length of a meeting can't be negative)
= 5 ∫ 0 to 1 x\((x-0.5)^{5}\) dx
Now we can use integration by parts or substitution to solve the integral. For simplicity, we can use substitution, with u = x - 0.5 and du = dx:
E(X) = 5 ∫ -0.5 to 0.5\(5(x-0.5)(u)^{5}\) du
= 5 ∫ -0.5 to 0.5 \((u^6 + 0.5u^5)\) du
= 5 [(1/7)\(u^7\\\) + (1/10)\(u^6\)] evaluated at -0.5 and 0.5
= 5 [(1/7)\((0.5)^7\) + (1/10)\((0.5)^6\) - (1/7)\((-0.5)^7\) - (1/10)\((-0.5)^7\)]
≈ 0.2083 hours or 12.5 minutes
Therefore, the expected length of a staff meeting is approximately 12.5 minutes.
To learn more about probability from the given link:
https://brainly.com/question/30034780
#SPJ4
gabriel and raj were running a lemonade stand at the local park. they decided to pay their sister to operate the stand. the following values represent the profit y after x hours of the stand being open. using a calculator or statistical software, find the linear regression line for the data. enter your answer in the form y
After performing the linear regression evaluation, the equation of the regression line is:
(i) y = 1.40x + 1.45
To locate the linear regression line for the given records, we will use a statistical software program or a calculator. By analyzing the data points, we can decide the equation of the road that satisfactorily represents the connection between the hours of the stand being open (x) and the profit (y).
After performing the linear regression evaluation, the equation of the regression line is:
y = 1.40x + 1.45
This equation shows that for each extra hour the stand is open, the profit increases by using $1.40. The y-intercept, represented with the aid of the regular term 1.45, shows that although the stand isn't always open, there may be nevertheless a base income of $1.45.
The linear regression line for the given statistics indicates a positive relationship between the hours of the stand being open and the earnings earned. As the hour's increase, the earnings have a tendency to increase as nicely.
To know more about linear regression,
https://brainly.com/question/30401933
#SPJ4
The correct question is:
The linear regression line for the given data is y = 1.28x + 2.93. This equation represents the relationship between the hours the stand is open (x) and the corresponding profit (y).
To find the linear regression line for the given data, we can use statistical software or a calculator. The linear regression line represents the best fit line through the data points.
First, we list the given x and y values:
x: 1, 2, 3, 4, 5, 6, 7
y: 3.58, 5.18, 6.24, 7.97, 7.09, 8.31, 11.33
Using the software, we calculate the linear regression line. The result is y = 1.28x + 2.93, rounded to two decimal places.
Learn more About linear from the given link
https://brainly.com/question/2030026
#SPJ11
QUESTION
gabriel and raj were running a lemonade stand at the local park. they decided to pay their sister to operate the stand. the following values represent the profit y after x hours of the stand being open. using a calculator or statistical software, find the linear regression line for the data. enter your answer in the form y =mx+b, with m and b both rounded to two decimal places.
X Y
1 3.58
2 5.18
3 6.24
4 7.97
5 7.09
6 8.31
7 11.33