we used the Pythagorean Theorem to solve for the missing side, G, of the right triangle, which is 17.76. Then, using the SOHCAHTOA trigonometric ratio, we solved for the missing angle, H, which is 89.4 degrees.
Using the Pythagorean Theorem, we can solve for the missing side, G. The equation is a^2 + b^2 = c^2. In this case, the two known sides are 12 and 15, so we have 12^2 + 15^2 = G^2. We can solve this equation to get G = 17.76.
To solve for the missing angle, H, we can use the trigonometric ratio SOHCAHTOA. The ratio for finding the angle of a right triangle is opposite over hypotenuse, or H/G. We can use this ratio to solve for H: H = 15 * (53/17.76) = 89.37 degrees. Rounding to the nearest tenth, H = 89.4 degrees.
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find the slope (1,3), (5,5).
Find the slope (0,-1), (2,3)
Find the slope (2,-3),(5,-4)
Answer:
Find the slope (1,3), (5,5): m = 0.5
Find the slope (0,-1), (2,3): m = 2
Find the slope (2,-3), (5,-4): m = -1/3
Step-by-step explanation:
m = y2-y1/x2-x1
Answer: 2, 1, -1/3
Step-by-step explanation:
y2-y1/x2-x1
5-3 = 2
5-4=1
2
15. An author has written 5 children's books. The number of pages in these books are 64, 65, 73, 74, and 76.
a. List all 10 possible SRSS of size n=3, calculate the median number of pages for each sample, and display the sampling distribution of the sample median on a dotplot.
b. Show that the sample median is a biased estimator of the population median for this population.
c. Describe how the variability of the sampling distribution of the sample median would change if the sample size was decreased to n=2.
The mean of this sampling distribution is 70.9, which is less than the value of the population median of 73, therefore, the sample median is a biased estimator of the population median.
What is median?The median is the value separating the higher half from the lower half of a data sample, a population, or a probability distribution. For a data set, it may be thought of as "the middle" value.
A statistic used to estimate a parameter is an unbiased estimator if the mean of its sampling distribution is equal to the value of the parameter being estimated.
We obtained the following data from part (a) of this problem,
Sample 1: 64, 65, 73, and median is 65.
Sample 2: 64, 65, 74, and median is 65.
Sample 3: 64, 65, 76, and median is 65.
Sample 4: 64, 73, 74, and median is 73.
Sample 5: 64, 73, 76, and median is 73.
Sample 6: 64, 74, 76, and median is 74.
Sample 7: 65, 73, 74, and median is 73.
Sample 8: 65, 73, 76, and median is 73.
Sample 9: 65, 74, 76, and median is 74.
Sample 10: 73, 74, 76, and median is 74.
Let us calculate the mean of this sampling distribution,
μ(median) = ( 65+65+65+73+73+73+73+74+74+74)/10
μ(median) = 709/10
μ(median) = 70.9
The mean of the sampling distribution is found to be equal to 70.9.
(b) 70.9, which is less than the value of the population median of
73, therefore, the sample median is a biased estimator of the population median.
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The sum of the squares of two consecutive even integers is 1684. Find the integers.
The possible values of two consecutive even integers, of which the sum of their squares is 1684, are 28 and 30 for positive integers, while for negative integers, they are -28 and -30.
The difference between two consecutive even integers is 2.
Let the integers be a and (a+2). Then,
a² + (a + 2)² = 1684
a² + a² + 4a + 4 = 1684
2a² + 4a - 1680 = 0
a² + 2a -840 = 0
Hence, we get a quadratic equation.
There are three methods of solving a quadratic equations: by factoring, completing the square, and by using the abc formula.
Use the factoring method:
a² + 2a -840 = (a - 28) (a + 30)
a = 28 and a = -30
Hence, if the integers are positive, they are: 28 and 30.
If the integers are negative, they are -28 and -30.
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A teacher asks three students to complete the following statement about the nature of the roots
of a quadratic equation.
If q
2
– 4pr > 0, the roots of the quadratic equation px2 + qx + r = 0 will be...
Zain answers, "always positive".
Vipul answers, "positive, if p, q, and r are positive".
Suman answers, "negative, if p, q, and r are positive".
Who answered correctly
Answer:
Vipul answered correctly.
The nature of the roots of a quadratic equation depends on the value of the discriminant, which is given by b^2 - 4ac, where a, b, and c are coefficients in the equation ax^2 + bx + c = 0. If the discriminant is positive, the roots of the equation will be real and distinct, and their sign will depend on the sign of the coefficients a, b, and c. If p, q, and r are positive, the value of the discriminant (q^2 - 4pr) will be positive, and the roots of the equation px^2 + qx + r = 0 will be real and distinct, but their sign cannot be determined just based on the values of p, q, and r alone.
8x + 11y = –16 Write your answer using integers, proper fractions, and improper fractions in simplest form.
Answer:
Slope-intercept form is
y = mx + b
We want to get the y by itself on one side of the equation.
0 = 18x + 6y – 2
First let's subtract 6y from both sides.
-6y = 18x – 2
Next let's divide both sides by -6.
y = (18 / -6)x - (2 / -6)
y = -3x + 1/3
Step-by-step explanation:
Does the following represent a linear or exponential function?
y = 5+2x
Answer:
The function y = 5 + 2x represents a linear function.
I need help with the bottom 2
“write the slope-intercept for. (Y=mx+b) of the equation of each line.”
The equation of the each of the lines in slope-intercept form are:
5. y = -1/3x + 3.
6. y = 2x - 2
7. y = -8/3x + 4.
8. y = -2x + 1.
What is the Slope-intercept Form of a Line?The slope-intercept form of a line is y = mx + b, where m is the slope of the line and b is the y-intercept.
5. Slope (m) = rise/run = -1/3
y-intercept (b) = 3
The equation is: y = -1/3x + 3.
6. Slope (m) = rise/run = 2/1 = 2
y-intercept (b) = -2
The equation is: y = 2x - 2
7. Slope (m) = rise/run = -8/3
y-intercept (b) = 4
The equation is: y = -8/3x + 4.
8. Slope (m) = rise/run = -2/1 = -2
y-intercept (b) = 1
The equation is: y = -2x + 1.
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An air hug applies a force of 4600 N to bring about a change in moment of 2760 kg m/s. How much time did it act over?
The period for which the force acts on the body is 0.6 seconds.
What is momentum?Momentum is the result of a particle's mass and velocity. Being a vector quantity, momentum possesses both magnitude and direction. According to Isaac Newton's second equation of motion, the force acting on the particle equals the time rate of change of momentum.
Given the force applied is 4600 N
F = 4600 N
and change in momentum = Δm = 2760 kg m/s
force is given by a change in momentum to the change in time
F = Δm/Δt
Δt = Δm/F
Δt = 2760/4600
Δt = 0.6 seconds
Hence the change in time is 0.6 seconds.
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Use the figure and m∠IJL = 0. 5 m∠JIK. In the figure, IJK is a triangle. Side IJ and KJ are congruent. Line JL is bisector of base IK. The length of IL is denoted by 3x and the length of LK is denoted by 2x + 5. The triangle JLK is right angle triangle
So the length of JL is equal to the square root of the expression in the parentheses.
Given,
Based on the information given,
The triangle JLK is a right triangle with JL being the hypotenuse.
Since the angle between IJ and JL is half the angle between JI and JK,
we know that JL is also the perpendicular bisector of IK.
By using the Pythagorean theorem, we can find the length of JL:
[tex](JL)^2 = (2x + 5)^2 + (3x)^2[/tex]
Expanding and simplifying the right side:
[tex]JL^2 = 4x^2 + 20x + 25 + 9x^2[/tex]
[tex]JL^2 = 13x^2 + 20x + 25[/tex]
Taking the square root of both sides:
[tex]JL = \sqrt{(13x^2 + 20x + 25)}[/tex]
So the length of JL is equal to the square root of the expression in the parentheses.
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find the limit (if it exists). (if an answer does not exist, enter dne.) lim s→6 f(s), where f(s) = 3s − 4, s ≤ 6 7 − 1 2 s, s > 6
The limit of f(s) as s approaches 6 does not exist because the function has two different values for s approaching 6 from the left and from the right.
A limit is a concept in mathematics that deals with finding the value that a function approaches as the independent variable approaches a certain value.
We need to consider two different cases, as the function f(s) has different definitions for s less than or equal to 6 and s greater than 6.
For s less than or equal to 6, the function f(s) is defined as
=> 3s - 4.
As s approaches 6, the value of f(s) will approach
=> 3 * 6 - 4 = 14.
For s greater than 6, the function f(s) is defined as
=> 7 - 1/2 * s.
As s approaches 6, the value of f(s) will approach
=> 7 - 1/2 * 6 = 4.
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How many slices are in a 14 inch pizza?
Large pizzas are 14 inches in diameter and will offer approximately 10 slices.
What is meant by diameter?
A line that is straight and cuts through the middle of a body or figure. notably a line segment passing through a circle's centre and ending on the circle's rim. the diameter's length.It is twice as long as a circle's radius, or Diameter = 2 Radius.The diameter of a circle cuts through the centre whereas the radius extends from the centre to the edges of the circle. The diameter of a circle effectively divides the shape in two.The diameter or length of a circle is its circumference. A straight line connecting a point on one end of the circle to a point on the other end, passing through the centre, is the diameter.To learn more about diameter refer to
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Nick can run at a speed of 25 feet per second. Which 2-variable equation models how many feet he can run?
A) x • m = 25
B) x2 + m2 =25
C) 25 ÷m = x
D) 25x = m
The correct 2-variable equation that models how many feet Nick can run is: 25x = m,
Hence, option (d) is correct choice.
As per the data given,
We have,
Nick can run at a speed of 25 feet per second.
We need to convert the above statement in 2-variable equation models
We can write it as:
Distance covered by Nick will be:
25x = m
where x is the time in seconds that Nick runs and
m is the distance in feet that Nick runs.
The equation represents the relationship between time and distance using the constant speed of 25 feet per second.
The distance travelled is equal to the speed multiplied by the time.
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Katie has $500 in a savings account that earns 12% annually. How much interest will she earn in 4 years?
Answer:
below
Step-by-step explanation:
Interest = prt p = principle = 500 r = rate in decimal = .12 t = years
= 500 ( .12)(4) = 240 dollars
how to calculate seismic response coefficient
Answer:
The seismic coefficient represents the maximum horizontal equivalent acceleration expected in a failure wedge in slip potential and is obtained by averaging the horizontal forces in the deformable sliding mass, according to the equation: kmax=¯ah.
It is calculated by dividing the maximum acceleration response of a building by the peak ground acceleration of the underlying seismic hazard.
To calculate the seismic response coefficient, the following steps should be followed:
1. Identify the seismic hazard in the area. This can be done by consulting geological surveys and geological maps.
2. Calculate the peak ground acceleration of the seismic hazard. This can be done using the various seismic hazard assessment techniques such as the probabilistic seismic hazard analysis (PSHA) method.
3. Determine the maximum acceleration response of the building. This can be done by performing a dynamic analysis of the building using a computer simulation program or a hand calculation.
4. Divide the maximum acceleration response of the building by the peak ground acceleration of the seismic hazard to obtain the seismic response coefficient.
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determine whether the variable is qualitative or quantitative. explain your reasoning.
The variable "Gallons of water in a swimming pool" is a quantitative variable.
Quantitative variables are variables that are numerical and can be measured on a scale, such as height, weight, or time. In this case, the number of gallons of water in a swimming pool can be measured and can take any value within a range, such as 0 to 100,000 gallons. Therefore, "Gallons of water in a swimming pool" is a quantitative variable.
In contrast, qualitative variables are variables that describe an attribute or characteristic of a person, place, or thing, and they do not have a numerical value. Examples of qualitative variables include hair color, religious affiliation, or nationality.
"
Complete question
Determine whether the variable is qualitative or quantitative. explain your reasoning.
Variable: Gallons of water in a swimming pool
"
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Consider the following code segment, which traverses two integer arrays of equal length. If any element of arr1 is smaller than the corresponding (i. E. , at the same index) element of minarray, the code segment should replace the element of minarray with the corresponding element of arr1. After the code segment executes, minarray should hold the smaller of the two elements originally found at the same indices in arr1 and minarray and arr1 should remain unchanged.
The change that will ensure that the code segment functions as intended is "Removing lines 5-8
What is a code segment?A code segment, often known as a text segment or just text, is a section of an object file or the equivalent piece of the program's virtual address space that includes executable instructions in computing.A code segment, often known as a text segment or just text, is a section of an object file or the equivalent piece of the program's virtual address space that includes executable instructions in computing.A code segment, often known as a text segment or simply text in the area of computing, is a section of a computer file that contains object code or an analogous segment of the program's address space that contains executable instructions and directives information.To learn more about code segment refers to:
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Isadore Belle earned 15% commission on her monthly sales of $2,870,
$3,150, and $3,940. What was her total commission for all three months.
FOOTEHEND
Nema takt
ME
wa CD
ma
CUNHIDETIOL
wostimees
PREHMBARE
GESTUDENTARE
K
STANICAL
MILIDMATIRAN
Answer:
1494
Step-by-step explanation:
15%($2,870+$3,150+$3,940) =1494
Select the statement that accurately describes unimodal distribution.
A distribution in which numerous values are more frequent than other values. A distribution in which the values are distributed uniformly.
A distribution in which two distinct values are more frequent than the other values. A distribution in which one value is more frequent than other values.
The statement that accurately describes unimodal distribution is
" A distribution in which one value is more frequent than other values"
What is unimodal distribution ?
One distinct peak or most frequent value characterises a distribution as unimodal. The values start out climbing, reaching a single high, and then starting to fall. The "mode" in "unimodal" refers to the local maximum on a chart, not the most frequent value in a data set (although they are closely related).
In a graph, one peak will correspond to one mode (one common number), therefore conceptually they are the same thing. There is no list of numbers to go to when attempting to determine if a graph represents a unimodal distribution or not.
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Exponential Functions
The growth factor in the function is 5.
What is growth factor?An exponential function with the form A(t) = [tex]C a^t[/tex], where a > 0
When t = 0, the function's initial value is represented by the number C, and the growth (or decay) factor is represented by the number a.
If a > 1, the function represents growth; If 0 < a < 1, the function represents decay.
Given:
y = 4 x [tex]5^7\\[/tex]
we know the general form of Exponential function
g(x) = [tex]ab^x[/tex]
where a is the initial amount
b is the growth or decay factor
and, x is the time
Now, comparing to the given function
Initial amount= 4
Growth factor = 5
time = 7
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Can a linear function be an exponential function?
A linear growth function has a positive constant slope, whereas an exponential growth function has a positive rising slope.
Is it possible for a linear equation to be exponential?Explanation and response: Exponents are not permitted in a linear equation. Because the link between the two variables does not vary at a constant pace, the exponents in an equation generate a nonlinear graph. Linear functions have a constant rate of change per unit interval. Over equal intervals, an exponential function changes by a similar ratio.
The exponential function is another sort of nonlinear function.A nonlinear function in which the independent variable equals the function’s exponent, as in… The independent variable in these functions is an exponent in the equation. Exponential functions are shown as straight lines on semilog paper. Semi-log paper contains two axes: one arithmetic and one logarithmic. The exponential constant in the equation is given by the slope of the line (m).
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The diagram shows a regular polygon. Work out the value of x.
Answer:
x = 67.5 degrees
Step-by-step explanation:
this is an octagon which has 8 sides
the sum of all interior angles can be found by taking the number of sides, reducing it by 2, and then multiplying by 180
(8-2)*180 = 6(180) = 1080
the 1080° must be split equally among all 8 angles because it is a 'regular' polygon
1080/8 = 135
however, 'x' represents half of each regular angle so it is 67.5 degrees
Determining Truth Values
If p →q is true, which compound statement has the same truth value?
Ap →q is false and q→ p is true.
Bp →q is false and q→ p is false.
Cp →q is true and q→ p is false.
Dp →q is true and q→ p is true.
Therefore , the solution of the given problem of compound statements comes out to be choice D is right.
What is compound statement ?Like in any language, connectives are used to combine simpler statements to create complex statements in mathematics. And, or, if... then, and if and only if are the connectives that are frequently employed in mathematics. The truth value of the a compound statement is determined by variable the truth values of its simpler parts.
Here,
Given :function
To discover the true values
Which compound statement,
if p →q is true, will have the same truth value?
The formulation of the logic biconditional link
p ↔ q, which is "p → q and q → p," provides the direct connection to the solution.
As a result, choice D is right.
Therefore , the solution of the given problem of compound statements comes out to be choice D is right.
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HELP ASAP, WILL MARK BRAINLIEST
Data was collected on the amount of time that a random sample of 8 students spent studying for a test and the grades they earned on the test. A scatter plot and line of fit were created for the data.
scatter plot titled students' data, with points plotted at 1 comma 75, 2 comma 70, 2 comma 80, 2 comma 90, 3 comma 80, 3 comma 100, 4 comma 95, and 4 comma 100, and a line of fit drawn passing through the points 0 comma 60 and 2 comma 80
Find the y-intercept of the line of fit and explain its meaning in the context of the data.
5; for each additional hour a student studies, their grade is predicted to increase by 5% on the test
10; for each additional hour a student studies, their grade is predicted to increase by 10% on the test
60; a student who studies for 0 hours is predicted to earn 60% on the test
80; a student who studies for 0 hours is predicted to earn 80% on the test
Answer:
y = 10x + 60
Step-by-step explanation:
Hope this will help on your test.
PLSSS HELP IF YOU TURLY KNOW THISSS
Answer:
The answer is x = 2. To solve for x, divide both sides of the equation by 8 to get x = 16/8 = 2.
Step-by-step explanation:
Answer:
[tex]8x = 16 \\ x = 16 - 8 \\ x = 8[/tex]
PLEASE. I NEED HELP 4 3/8 x 2 4/7
Answer:
Mixed Number: 11 1/4
Decimal: 11.25
Step-by-step explanation:
Answer:
[tex] \red {\boxed{\tt{ 11\frac{14}{56} }}}[/tex]
Step-by-step explanation:
[tex] \tt4 \frac{3}{8} \times 2 \frac{4}{7} \\ \\ \tt \frac{8 \times 4 + 2}{8} \times \frac{7 \times 2 + 4}{7} \\ \\ \tt \frac{35}{8} \times \frac{18}{7} \\ \\ \tt{ \frac{35 \times 18}{8 \times 7} } \\ \\ \tt {\frac{630}{56}} \\ \\ \tt{ 11\frac{14}{56} }[/tex]
find a pattern. use the terms from part 1 to answer each question. what is a proof?
terms from part 1:
Definition
Postulate(axiom)
Common notion
Theorem
Corollary
the term for the given Table is given below:
A. - 3.B. - 1.C. - 5.D. - 4.E. - 2.What is a theorem?Mathematics is all about theorems. A rigorous proof is a specific form of logical argument that has been used to demonstrate the truth of a claim, which is what a theorem is.
A. Definition refers to a statement that exactly defines the object, thing, or everything.
B. Postulate or axiom is a statement that is accepted as true in order to initiate an argument.
C. Common notion is the statement that helps to understand the common sense of the subject.
D. Theorem is a statement that shows proof on the basis of previously made statements.
E. Corollary is a statement that acts as a small proof that has already been proven.
Therefore, the correct matching for the given terms will be:
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Complete question:
Explain the main parts and uses of two kinds of proofs. March the word with the right definition.
A. Definition
B. Postulate(axiom)
C. Common notion
D. Theorem
E. Corollary
1. A statement that is assumed to be true without proof
2. A statement that has already been proven to be true
3. A statement that tells exactly what something is or means
4. A statement that makes sense based on another statement that has already been proven
5. A statement that is not officially defined but that is understood to be common sense.
Help pls :3
Pollter are concerned about declining level of cooperation among peron contacted in urvey. A pollter contact 91 people in the 18-21 age bracket and find that 77 of them repond and 14 refue to repond. When 277 people in the 22-29 age bracket are contacted, 245 repond and 32 refue to repond. Aume that 1 of the 368 people i randomly elected. Find the probability of getting omeone in the 18-21 age bracket or omeone who repond. Report the anwer a a percent rounded to one decimal place accuracy. You need not enter the "%" ymbol. P(18-21 or repond)
The probability of getting omeone is 25.3%
Find the probability of getting omeone in the 18-21 age bracket or omeone who repond?
Define the two events
A = someone is in the 18-21 age bracket
B = the person does not respond
Based on the table, we have
n(A) = number of people in set A = 76
n(B) = 31
n(A and B) = 11
So,
n(A or B) = n(A) + n(B) - n(A and B)
n(A or B) = 76+31-11
n(A or B) = 96
We have 96 people in the age 18-21 bracket, they didn't respond, or both.
Divide this over the 379 people surveyed
96/379 = 0.253 = 25.3%
Answer: 25.3%
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how many more miles of trails are there than miles of shoreline in crater lake national park
Crater Lake National Park in Oregon is renowned for its spectacular scenery and pristine natural beauty. The park contains an impressive 155 miles of trails, which is significantly more than its 33 miles of shoreline.
The abundant trails within the park provide visitors with an opportunity to explore the area on foot, discovering the unique beauty and landscape that has captivated viewers for centuries.
The trails range from short, easy hikes to more difficult, challenging hikes. Many of the trails lead to breathtaking views of the lake, or to the top of the dormant volcano, Mount Mazama.
The trails are well-maintained and very well-marked, so visitors can confidently and safely make their way around the park. There are also several trails that feature interpretive signs to provide visitors with educational information about the area’s flora, fauna, and geology.
Using the trails, visitors can explore Crater Lake National Park’s many wonders, such as the stunning
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on monday, jessica told two friends a secret. on tuesday, each of those friends told the secret to two other friends. each time a student heard the secret, he or she told the secret to two other friends the following day. on what day of the week will $1023$ students know the secret?
It will take 10 days for 1023 students to know the secret.
We can start by using the formula for exponential growth: n = 2^k
where n is the number of students who know the secret and k is the number of days.
On Monday, 1 student knew the secret (Jessica). On Tuesday, 2 students knew the secret. On Wednesday, 2 x 2 = 4 students knew the secret. And so on, each day the number of students who know the secret doubles.
We want to find k when n = 1023, so we can solve for k:
1023 = 2^k
log2 1023 = k
k = 10
So, it takes 10 days for 1023 students to know the secret. Since Monday was the first day, the 10th day is 10 days after Monday, which is a Thursday. Therefore, on Thursday, 1023 students will know the secret.
Therefore, It will take 10 days for 1023 students to know the secret.
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It will take 10 days for 1023 students to know the secret.
We can start by using the formula for exponential growth: n = 2^k
where n is the number of students who know the secret and k is the number of days.
On Monday, 1 student knew the secret (Jessica). On Tuesday, 2 students knew the secret. On Wednesday, 2 x 2 = 4 students knew the secret. And so on, each day the number of students who know the secret doubles.
We want to find k when n = 1023, so we can solve for k:
1023 = 2^k
log2 (1023) = k
k = 10
So, it takes 10 days for 1023 students to know the secret. Since Monday was the first day, the 10th day is 10 days after Monday, which is a Thursday. Therefore, on Thursday, 1023 students will know the secret.
Therefore, It will take 10 days for 1023 students to know the secret.
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Please help me with this too please??
Answer:
tan K = 4/3
Step-by-step explanation:
Tangent is a ratio. The side marked 32 is opposite from angle K. And the side marked 24 is adjacent to (next to) angle K.
Tangent K is the ratio:
opposite/adjacent
tan K = opp/adj
fill in the given side lengths
tan K = 32/24
simplify, both numbers are divisible by 8
tan K = 4/3