Answer:
yes, the base is 4
Step-by-step explanation:
suppose for an angle theta in a right triangle cos theta = C. Sketch and label this triangle, and then use it to write the other five trig functions of theta in terms of C.
Answer:
[tex]sin\theta = \sqrt{1-C^2}[/tex]
[tex]tan\theta = \dfrac{\sqrt{1-C^2}}{C}[/tex]
[tex]cot\theta = \dfrac{C}{\sqrt{1-C^2}}[/tex]
[tex]sec\theta = \dfrac{1}{C}}[/tex]
[tex]cosec\theta = \dfrac{1}{\sqrt{1-C^2}}[/tex]
Step-by-step explanation:
Given that:
[tex]\theta[/tex] is an angle in a right angled triangle.
and [tex]cos\theta = C[/tex]
To find:
To draw the triangle and write other five trigonometric functions in terms of C.
Solution:
We know that cosine of an angle is given by the formula:
[tex]cosx =\dfrac{Base}{Hypotenuse}[/tex]
Here, we are given that [tex]cos\theta = C[/tex] OR
[tex]cos\theta = \dfrac{C}{1}[/tex]
i.e. Base = C and Hypotenuse of triangle = 1
Please refer to the right angled triangle as per given statements.
[tex]\triangle PQR[/tex], with base PR = C units
and hypotenuse, QP = 1 unit
[tex]\angle R[/tex] is the right angle.
Let us use pythagorean theorem to find the value of perpendicular.
According to pythagorean theorem:
[tex]\text{Hypotenuse}^{2} = \text{Base}^{2} + \text{Perpendicular}^{2}[/tex]
[tex]1^{2} = C^{2} + QR^{2}\\\Rightarrow QR = \sqrt {1-C^2}[/tex]
[tex]sin\theta = \dfrac{Perpendicular}{Hypotenuse}\\\Rightarrow sin\theta = \dfrac{\sqrt{1-C^2}}{1}\\\Rightarrow sin\theta = \sqrt{1-C^2}[/tex]
[tex]tan\theta = \dfrac{Perpendicular}{Base}\\\Rightarrow tan\theta = \dfrac{\sqrt{1-C^2}}{C}[/tex]
[tex]cot\theta = \dfrac{Base}{Perpendicular}\\\Rightarrow cot\theta = \dfrac{C}{\sqrt{1-C^2}}[/tex]
[tex]sec\theta = \dfrac{Hypotenuse}{Base}\\\Rightarrow sec\theta = \dfrac{1}{C}}[/tex]
[tex]cosec\theta = \dfrac{Hypotenuse}{Perpendicular}\\\Rightarrow cosec\theta = \dfrac{1}{\sqrt{1-C^2}}[/tex]
The revenue of selling a new video game is modeled by the equation can be modeled by the equation f(x)=-3x^2 + 21x + 54 where x is the price of the game and y is the revenue. Find the price of the game, x, that would result in no revenue.
Answer:
x = 9Step-by-step explanation:
Given the revenue of selling a new video game modeled by the equation f(x)=-3x² + 21x + 54 where x is the price of the game and y is the revenue, to calculate the price of game x that would result in no revenue, we will set the revenue f(x) to be zero and then solve the resultinf equation.
at f(x) = 0;
0 = -3x² + 21x + 54
0 = -x² + 7x + 18
Multiplying through by minus sign
x² - 7x - 18 = 0
Factorizing the resulting expression;
x² - 9x+2x - 18 = 0
(x² - 9x)+(2x - 18) = 0
x(x-9)+2(x-9) = 0
(x-9)(x+2) = 0
x-9 = 0 and x+2 = 0
x = 9 and -2
Neglecting the negaive value of x;
x = 9
Hence, the price of the game, x, that would result in no revenue is 9.
Please answer this question now
Answer:
44 degrees
Step-by-step explanation:
Since MN is a tangent, it forms a right angle wheng it intersects line MP since MP is the diameter. So, 90+46 is 136 and since there are 180 degrees in a traingle, 180-136 is 44.
Hope this is helpful! :)
The answer is 44 degrees.
:D
Find the 20th term from the last term of the AP:3,8,13,..., 253.
Answer:
158
Step-by-step explanation:
The sequence is 3, 8, 13, ..., 253.
Going backwards, it's 253, 248, 243, ..., 3.
First term is 253, common difference is -5.
The nth term is:
a = 253 − 5(n − 1)
The 20th term is:
a = 253 − 5(20 − 1)
a = 158
Need help ASAP please
Can Someone help me with this question?
Brainliest to the correct answer/explanation ❤️
Thank you (:
Answer:
1.67years
Step-by-step explanation:
in one it increases by 1.1% of 7.1 billion
=7.81 million
dat is it increases 7.7181 billion in 1 year
it reaches 12 billion in x years
therefore x years = 12 billion/ 7.7181 billion
= 1.67 years
don't forget to tag me as brainliest answer
A set of five integers has unique mode 7, median 9, and arithmetic mean 11. What is the greatest possible value in the set?
Answer:
22
Step-by-step explanation:
Since the mean of the set is 11, the sum of the integers in the set must be 11 * 5 = 55. The median must be the 3rd integer, therefore the 3rd integer is 9. Since 9 > 7 and there are only 2 integers less than the median, the 1st and 2nd integers must be 7 and 7 because 7 is the mode. This leaves the last two integers to have a sum of 55 - (9 + 7 + 7) = 32. In order for the last integer (the greatest one) to have the largest value, the fourth integer must be as small as possible. Therefore, the fourth integer is 10 (it can't be 9 because 7 is the only mode) which makes the answer 32 - 10 = 22.
Jen plans to tile the kitchen floor. Each time covers 3 square meters. The kitchen is 4 5/6 meters wide and 5 meters long. How many times does Jen need to cover the kitchen floor?
Answer:
Jen needs approximately 8 tiles to cover the kitchen floor
Step-by-step explanation:
What we want to calculate here is the number of tiles needed to cover the kitchen floor.
The first thing we need to do here is to calculate the area of the kitchen floor.
Mathematically, that would be the product of the length of the kitchen floor and the length of the width.
That is; 4 5/6 * 5 = 29/6 * 5 = 145/6 m^2
Now, to calculate the number of tiles needed, we only need to divide the area of the kitchen floor by the area of the individual tiles
Mathematically, that would be;
145/6 ÷ 3 = 145/6 * 1/3 = 145/18 = 8.05556
This is approximately 8 tiles
Which letter of the alphabet is next in the series?
JOTYD
(A) I (B) J (C) K (D) L
Answer:
(A) I
Step-by-step explanation:
With the numbers, I can correspond to a series of numbers to one of the 26 letters of the English language. Like the Roman numeral system, a number adds if the next one in the sequence is smaller, and vice versa if it is larger. Combining the structure of the Roman numerals with the numbers 1, 2, 5, 10, and 20 makes it so that you never have to use more than 3 numbers to express a letter.
Answer: it is (A)
Step-by-step explanation:
Write an equation in slope-intercept form for the line with slope 1/4 and y-intercept -1. PLEASE HELP MEEE : (
Explanation:
We have the general slope intercept form y = mx+b. All we do is replace m with the given slope 1/4, and replace b with the y intercept -1.
So we have y = mx+b turn into y = (1/4)x+(-1) which simplifies to y = (1/4)x-1.
Please answer it in two minutes
Answer:
0.9
I guess.
If yes
.. Follow me..
Factor the polynomial.
X2+3x-54
Answer:
[tex] \mathrm{(x + 9)(x - 6)}[/tex]Step-by-step explanation:
[tex] {x}^{2} + 3x - 54[/tex]
Write 3x as a difference
[tex] {x}^{2} + 9x - 6x - 54[/tex]
Factor out x from the expression
[tex]x(x + 9) - 6x - 54[/tex]
Factor out -6 from the expression
[tex]x(x + 9) - 6(x + 9)[/tex]
Factor out x+9 from the expression
[tex](x + 9)(x - 6)[/tex]
Hope I helped!
Best regards!
Answer: (x + 9)(x - 6)
Step-by-step explanation:
x² + 3x - 54 Find 2 numbers whose product is -54 and sum is +3
∧
-1 + 54
-2 + 27
-3 + 18
-6 + 9 = +3 This works!
Place those digits in the parentheses and it is now factored.
(x - 6)(x + 9)
The marked price of
an electric fan is Rs.
1800-Iwhat is selling price with 13 % VAT ?
the VAT is equal to
1800 × 13/100
Rs. 234
selling price with VAT
1800 + 234
Rs. 2034
Please answer please question
Answer:38
Step-by-step explanation:multiple
If 1 meter = 1.093 yards, how many yards are in a kilometer? _____ yards
Answer: 1093 yards
Step-by-step explanation:
There are 1000 meters in a kilometer. Thus, there are 1.093*1000, or 1093 yards in a kilometer.
Hope it helps <3
Hey there! I'm happy to help!
There are 1,000 meters in a kilometer. If there are 1.093 yards in one meter, we can split this 1,000 meters into groups of 1.093 yards to see how many yards are in a kilometer.
1000÷1.093≈914.913
Therefore, there are about 914.913 yards in a kilometer.
Have a wonderful day! :D
can someone help me
Answer:
Step-by-step explanation:
The length of side length VY is 4z+2
The same as side length WX
The first term in a sequence of numbers is 1/2
Each term after the first term is 1 more than twice its previous term.
What is the 4th term?
OA. 4
B. 5
C. 11
OD. 23
Answer:
The correct answer is C. The 4th term is 11.
Step-by-step explanation:
Since the next term is one more than twice the previous, we can calculate it by the following expression:
[tex]a_{n} = 2*a_{n-1} + 1[/tex]
So the second term is:
[tex]a_2 = 2*\frac{1}{2} + 1\\a_2 = 2[/tex]
The third term:
[tex]a_3 = 2*2 + 1\\a_3 = 5[/tex]
And the fourth term:
[tex]a_4 = 2*5 + 1\\a_4 = 10 + 1 = 11[/tex]
The correct answer is C. The 4th term is 11.
with a y-intercept 10, x-intercept 2, and equation of axis of symmetry x-3=0
Answer: f(x) = -3x^2 + 3x - 2
Explain: x of vertex: [tex]x[/tex] = [tex](-\frac b{2}{a} )[/tex] = [tex]-\frac{3}{-6} = \frac{1}{2}[/tex]
y of vertex: y = [tex]f (\frac{1}{2} ) = - \frac{3}{4} + \frac{3}{2} -2=-\frac{5}{4}[/tex]
y-intercept: y = -2
x-intercept: y = 0
D = b[tex]^[/tex]^2 - 4ac = 9 - 24 = - 15 <0. There are no real roots (no x-intercepts) because D<0.
Since a <0, parabola opens downward. The parabola is below the x-axis
please solve i will give brainiest 100 point question ****** do the whole page please
Answer:
a) point (2, 1) is when the ball is on it's way down at 2 seconds
b) vertex (1, 2) is the highest the ball goes, which is 2 at 1 second.
c) y-intercept (0, 1) at time zero the ball is starting at a height of 1.
d) Points (0, 1) and (2, 1) are the points at which the ball starts and when it is in the same position from the ground as when it started, which is 1.
e) zero (x-int) is when the ball hits the ground at 2.5 seconds.
Step-by-step explanation:
Answer:
See below
step by step explanation
A. (2 , 1 ) is point on the parabola . It represents that the height of the ball after 2 second have passed.
b. The vertex is at ( 1 , 2 ) . It represent that the maximum height of the ball which is 2 units to at t = 1 second
c. The y - intercept is ( 0 , 1 ) . It represent that the initial height of ball at t = 0 second is 1 unit.
d. Point ( 0 , 1 ) and ( 2 , 1 )
This point represent the set of point having equal height at two different time. It represents how long before the ball reaches the same height from the starting point.
e. The zero or x - intercept is ( 2.5 , 0 )
It represent the time taken by ball before it reaches the ground.
Hope this helps...
Best regards!!
Write the following phrase as an expression. "c less than 27"
Answer:
27 - c
Step-by-step explanation:
less than means it comes after and is subtraction
27 - c
Answer:
27-c
Step-by-step explanation:
It is 27-c because it says c less than 27. If it was subtract 27 from c, it would be c-27. but its not
A florist gathered data about the weekly number of flower deliveries he made to homes and to businesses for several weeks. He used a graphing tool to organize the data in a scatter plot, with x representing the number of home deliveries and y representing the number of deliveries to businesses. Then he used the graphing tool to find the equation of the line of best fit: y = 0.555x + 1.629. Based on the line of best fit, approximately how many deliveries are predicted to be made to homes during a week with 50 deliveries to businesses?
Answer:
The number of deliveries that are predicted to be made to homes during a week with 50 deliveries to business is 87 deliveries
Step-by-step explanation:
The data categorization are;
The number of home deliveries = x
The number of delivery to businesses = y
The line of best fit is y = 0.555·x + 1.629
The number of deliveries that would be made to homes when 50 deliveries are made to businesses is found as follows;
We substitute y = 50 in the line of best fit to get;
50 = 0.555·x + 1.629 =
50 - 1.629 = 0.555·x
0.555·x = 48.371
x = 48.371/0.555= 87.155
Therefore, since we are dealing with deliveries, we approximate to the nearest whole number delivery which is 87 deliveries.
Answer:87
Step-by-step explanation:
In a survey conducted by the marketing agency 11mark, 241 of 1000 adults 19 years of age or older confessed to bringing and using their cell phone every trip to the bathroom (confessions included texting and answering phone calls).
(a) What is the sample in this study? What is the population of interest?
(b) What is the variable of interest in this study? ls it qualitative or quantitative?
(c) Based on the results of this survey, obtain a point estimate for the proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom.
(d) Explain why the point estimate found in part (c) is a statistic. Explain why it is a random variable. What is the source of variability in the random variable?
(e) Construct and interpret a 95% confidence interval for the population proportion of adults 19 years of age or older who bring their cell phone every trip to the bathroom.
(f) What ensures that the results of this study are representative of all adults 19 years of age or older?
Answer: kindly check explanation
Step-by-step explanation:
A) The sample is a fraction of the total population used in the study.
The sample is 1000 19 years of age or older U.S adult.
The population : all U.S adults aged 19 or older.
B.) Confession about bringing cell phone to the bathroom and it is a qualitative variable
C.) point estimate (p) :
Total number of sample = 1000
Number who confessed to bring cellphone = 241
p = 241/ 1000
= 241/1000 = 0.241
D.) The point estimate was deduced from the sample information and not the population. Random selection because selection is unbiased.
E.) 95% confidence interval (CI)
95% CI = (1 - 0.95) = 0.05
For a two-tailed test : 0.05 / 2 = 0.025
Z - score = 1.96
Error : (√[p(1 - p) / n])*z
1.96 * √0.241(1-0.241)/1000
1.96* √0.000182919
1.96 * 0.0135247
= 0.0265085
Boundary :
(0.241 - 0.0265085), (0.241 + 0.0265085)
(0.2144915, 0.2675085)
F) The sample can be said to be representative of the total population since the sampling was performed and participants were chosen at random.
Find the value of 2.7 ³ - 1.6 ³ - 1.1 ³ using a suitable identity.
Answer:
14.256
See details below
Step-by-step explanation:
2.7 ³ - 1.6 ³ - 1.1 ³
= (2.7 ³ - 1.1 ³) - 1.6 ³ expand difference of two cubes
= (2.7 - 1.1)*(2.7^2 + 2.7*1.1 + 1.1^2) - 1.6 ³
= 1.6*(2.7^2 + 2.7*1.1 + 1.1^2) - 1.6 ³ factor out 1.6
= 1.6*(2.7^2 - 1.6^2 + 2.7*1.1 + 1.1^2) expand difference of two squares
= 1.6*( (2.7 - 1.6)*(2.7 + 1.6) + 2.7*1.1 + 1.1^2)
= 1.6*( 1.1*4.3 + 2.7*1.1 + 1.1^2) factor out 1.1
= 1.6*1.1* ( 4.3 + 2.7 + 1.1)
= 1.6*1.1*8.1 rearrange
= 1.6 * 8.1 * 1.,1
= 16 * 0.81 * 1.1
= (4*0.9)^2 * 1.1
= 3.6^2 * 1.1
= 12.96 * 1.1 36*36=1296
= 14.256
(to multiply by 1.1, mentally start from the right, add the left digit, carry if necessary)
Identify the ventez of the graph. Tell whether it is a minimum or maximum.
Answer:
2nd option: the lowest point on the graph is (-2, -2). this is where both sides of the parabola converge. from this point, both lines go up. this means the vertex is a minimum.
38. Convert 85 to a number in base eight.
O 95 (base eight)
O 105 (hase eight)
O 115 (base eight)
O 125 (base eight)
Answer:
divide the number by 8 and write the remainder like this 10 r 5.Then you get your answer by going through the remainders in an upward direction. So the answer is 125
please help me I’m struggling
Answer:
c
Step-by-step explanation:
the answer is c becuase i know this que
Answer:
All
Step-by-step explanation:
We can check it by using the Pythagorean theorem.
[tex]a {}^{2} + b {}^{2} = c {}^{2} = {3}^{2} + { \sqrt{27} }^{2} = 6 {}^{2} = 9 + 27 = 36 = 36 = 36 [/tex]
[tex] {a}^{2} + {b}^{2} = c {}^{2} = {8}^{2} + {15}^{2} = {17}^{2} = 64 + 225 = 289 = 289 = 289[/tex]
[tex]a {}^{2} + b {}^{2} = c {}^{2} = 5 {}^{2} + {5}^{2} = { \sqrt{50} }^{2} = 25 + 25 = 50 = 50 = 50 = [/tex]
Hope this helps ;) ❤❤❤
Move the center of the circle horizontally to the left and then to the right of the y-axis. How does the equation of the circle change as the center crosses the y-axis?
Answer:
The equation of a circle centered in the point (a, b) and with a radius R.
(x - a)^2 + (y - b)^2 = R^2
Then, if you move the circle to the left, then you are decreasing the value of b.
Where b = 0 means that the center of the circle lies on the y-axis.
When you move the graph to the right you will be increasing the value of b.
Answer:
The variable h changes as the center of the circle moves horizontally. The sign of h is negative when the center is to the left of the y-axis and positive when it is to the right of the y-axis. The sign of the variable h flips when the center moves across the y-axis.
Step-by-step explanation:
plato answer from Equation of a Circle: Tutorial :)
This link will take you to a quizlet that is on this lesson with the other answers and test question answers!!
https://quizlet.com/519491317/geometry-b-unit-7-flash-cards/#:~:text=Move%20the%20center%20of%20the%20circle%20vertically%20so%20it%20lies,of%20the%20circle%20moves%20vertically.
Please I need help! Which of the following are true?
Answer:
choices A, B, and D are all true
choice C is false
Step-by-step explanation:
Choice A is true because both functions shown on the graph have exactly one asymptote at about y=1.
Choice B is true because well, the reason Choice C is not true. logarithmic graphs and exponential graphs look very similar. However, exponential graphs get very close to the x-axis but never actually touch it. In this graphing, the blue function crosses the x-axis, so it cannot be an exponential function. The only other function that has graphs that look like this is a logarithmic function, so Choice B is correct and Choice C is not correct.
Once again, Choice C is not correct because the blue graph crosses the x-axis and exponential functions never actually touch the x-axis no matter how close they get to it.
Choice D is correct because the red graph has been reflected over the x-axis and shifted upward, and the blue graph has been reflected across the y-axis and shifted to the right.
the shape of a piece is pallelogram whose adjacent side are 12m and 9 m and the corresponding diagonal is 15 .find the area of land
Answer: The area of land =108 m²
Step-by-step explanation:
In the given piece of land is in the shape of a parallelogram.
Diagonals divide it into 2 equal parts.
So, area of parallelogram = 2 x (Area of triangle with sides 12m and 9 m and 15 m)
Heron's formula :
Area of triangle = [tex]\sqrt{s(s-a)(s-b)(s-c)}[/tex], where [tex]s=\dfrac{a+b+c}{2}[/tex]
Let a= 12 , b= 9 and c = 15
[tex]s=\dfrac{12+9+15}{2}=18[/tex]
Area of triangle = [tex]\sqrt{18(18-12)(18-9)(18-15)}[/tex]
[tex]=\sqrt{18\times6\times9\times3}=\sqrt{2916}=54\ m^2[/tex]
Then, area of parallelogram= 2 x 54 = 108 m²
Hence, the area of land =108 m²
PLEASE, I NEED HELP! I will not accept nonsense answers, but I will give the person a BRAINLIEST if you get it correct.
Answer: The last choice is correct. Edna can score 5 times as many points in the next level as in the level she has reached
Step-by-step explanation: chart of values for [tex]y= 5^{x}[/tex]
x is the level y, points possible)
x y
1 5
2 25
3 125
4 625
5 3125
You can see the exponential pattern
For what it's worth, two views of the graph of the equation are attached
The point values are astronomical!