for the function y=-1+6 cos(2 pi/7(x-5)) what is the maximum value

Answers

Answer 1

the maximum value of the function is y = -1 + 6cos(2π/7(26.75-5)) = 5.

The function y = -1 + 6cos(2π/7(x-5)) is a periodic function with a period of 7. The maximum value of the function occurs when the cosine function reaches its maximum value of 1.

So, we need to find the value of x that makes the argument of the cosine function equal to an odd multiple of π/2, which is when the cosine function is equal to 1.

2π/7(x-5) = (2n + 1)π/2, where n is an integer

Simplifying this equation, we get:

x - 5 = (7/4)(2n + 1)

x = 5 + (7/4)(2n + 1)

Since the function has a period of 7, we can restrict our attention to the interval [5, 12].

For n = 0, we get x = 5 + 7/4 = 23/4

For n = 1, we get x = 5 + (7/4)(3) = 26.75

For n = 2, we get x = 5 + (7/4)(5) = 33.25

For n = -1, we get x = 5 + (7/4)(-1) = 1.75

For n = -2, we get x = 5 + (7/4)(-3) = -4.75

Out of these values of x, the only one that lies in the interval [5, 12] is x = 26.75.

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Related Questions

emily paints at a constant rate. she can paint square feet in minutes. what is emily's constant rate in square feet per minute?

Answers

Emily's constant rate in square feet per minute is 10. This means that she can paint 10 square feet in one minute.


To determine Emily's constant rate in square feet per minute, we need to use the given information that she can paint a certain number of square feet in a certain number of minutes. Let's say that Emily can paint x square feet in y minutes.
To find her rate, we need to divide the number of square feet painted by the number of minutes it took to paint them. So Emily's constant rate would be:
x / y = rate (in square feet per minute)
For example, if Emily can paint 200 square feet in 20 minutes, her rate would be:
200 / 20 = 10
Therefore, Emily's constant rate in square feet per minute is 10. This means that she can paint 10 square feet in one minute.
In conclusion, to determine Emily's constant rate in square feet per minute, we need to divide the number of square feet painted by the number of minutes it took to paint them. The result is the rate in square feet per minute.

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A store sells packages of 3 pens for $1.50, 8 pens for $4.00, and 12 pens for $6.00. Let c represent the total cost and p represent the number of pens. Write an
equation to represent this situation.

Answers

The equation for the total cost and p represent the number of pens is c = 3p + 8p + 12p

Which equation represents the situation?

3 pens for $1.50

8 pens for $4.00

12 pens for $6.00

Where,

c represent the total cost

p represent the number of pens

Total cost, c = 1.50 + 4.00 + 6.00

= $11.50

Number of pens, p = 3 + 8 + 12

= 23

c = 3p + 8p + 12p

$11.50 = 23p

Hence, c = 3p + 8p + 12p is the equation that represents the situation.

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15 Points PLEASE HELP ME OUT.
Algebra 1 honors

Answers

Answer: A C(t) = -(x-5)^2

Step-by-step explanation:

Answer:

C(t) = -x^2 + 5

Step-by-step explanation:

Notice how C(t) = 5 when t = 0. This means that (0, 5) is a point on C(t) and is the y-intercept, thus making the constant term (term without variable in standard form) 5. Next, notice how C(t) decreases as t increases and decreases. This means that C(t) is reflected over the x-axis such that it looks like an upside-down U shape. Thus, a negative must be applied to the term of the highest degree.

kimberly sent gifts to her friends. for each gift she used either a rectangular gift box or a cylindrical gift box. each box contains exactly one gift: either a fragrant soap or a pack of spicy roasted almonds. if half of the boxes she sent were cylindrical, and a third of the rectangular boxes contained soap, then how many cylindrical boxes contained soap?

Answers

Kimberly sent approximately 34 cylindrical boxes that contained soap

Let's assume Kimberly sent a total of 100 gift boxes. Since half of the boxes were cylindrical, that means she sent 50 cylindrical boxes.

If a third of the rectangular boxes contained soap, then 1/3 * (100 - 50) = 1/3 * 50 = 50/3 ≈ 16.7 rectangular boxes contained soap. Since we cannot have a fraction of a box, let's round it down to 16 rectangular boxes containing soap.

Now, since each box contains exactly one gift, the remaining cylindrical boxes must contain the pack of spicy roasted almonds. Therefore, out of the 50 cylindrical boxes, 50 - 16 = 34 cylindrical boxes contain soap.

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.

How many horizontal asymptotes can the graph of y = f(x) have? (Select all that apply.)
A. 0
B. 1
C. 2
D. 3
E. 4

Answers

The number of horizontal asymptotes that graph of y = f(x) can have is (c) 2.

As x approaches negative infinity, the function f(x) approaches the horizontal-asymptote y = 0 because the term 1/x becomes negligible compared to other terms. This occurs in the portion of the function defined as 1/x when x < 0.

As x approaches positive infinity, the function f(x) approaches the horizontal-asymptote y = 2 because the term 2x becomes dominant compared to other terms. This occurs in the portion of the function defined as 2x - 1 when x ≥ 0.

Therefore, the graph of y = f(x) has two horizontal asymptotes: y = 0 as x approaches negative infinity and y = 2 as x approaches positive infinity. The correct answer is (c) 2.

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The given question is incomplete, the complete question is

How many horizontal asymptotes can the graph of y = f(x) have? (Select all that apply.)

f(x) = {1/x  ,   if  x<0,

     = {2x - 1 , if x≥0.

(a) 0

(b) 1

(c) 2

(d) 3

(e) 4

What is the range of f(x) = 3x + 9?

{y | y < 9}
{y | y > 9}
{y | y > 3}
{y | y < 3}

Answers

The range of the given function is {y|y>9}. Therefore, option B is the correct answer.

The given function is f(x)=3x+9.

The range of a function is the complete set of all possible resulting values of the dependent variable (y, usually), after we have substituted the domain.

Substitute x=0, 1, 2, 3, 4,....in y=3x+9, We get

When x=0

y=9

When x=1

y=12

When x=2

y=15

When x=3

y=18

So, the range is {9, 12, 15, 18,.....}

Therefore, option B is the correct answer.

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A 2-pint bottle of salad dressing costs $13.76. What is the price per cup?
Submit

Answers

The price per cup of salad dressing in a 2-pint bottle that costs $13.76 is $0.86.

To calculate the price per cup of salad dressing, we need to know that there are 2 cups in a pint. Therefore, there are 4 cups in a 2-pint bottle of salad dressing.

To find the price per cup, we divide the total cost of the bottle by the number of cups in the bottle.

$13.76 ÷ 4 cups = $3.44 per cup

Therefore, the price per cup of salad dressing is $0.86, which is obtained by dividing $3.44 by 4.

It is important to know the price per unit, whether it is per ounce, per pound, per liter, or per cup, to be able to compare the cost of different products accurately.

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how many units is -1+(-4) from -1

Answers

The expression -1  + (-4) is 4 units away from -1.

How to find the units

This can be solved using the concept of number line.

A number line is a visual representation of all real numbers placed on a straight line with an arbitrary point as the origin the origin is usually represented as zero and the numbers increase from left to right or from right to left

Another way is to  find how many units -1 + (-4) is from -1, we need to subtract -1 from -1 + (-4) this is done below

= -1 + (-4) - (-1)

= -1 - 4 + 1

= -4

we can say that, -1 + (-4 ) is 4 units away from -1.

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Will make brainiest if two people answer ૮ ˶ᵔ ᵕ ᵔ˶ ა

Answers

The length of side LJ as shown in the similar shapes is 12.92.

What is similar shapes?

Similar shapes are enlargements of each other using a scale factor.

To calculate the length of side LJ, we use the formula below

Formula:

XZ/XY = KJ/KL....................... Equation 1

From the diagram,

Given:

/XZ/ = 8.2/XY/ = 8.7/KJ/ = 12.18

Substitute these values into equation 1 and solve for KL

8.2/8.7 = 12.18/KLKL = 8.7×12.18/8.2KL = 12.92

Hence, the right option is 12.92.

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After heating up in a teapot, a cup of hot water is poured at a temperature of
20
3

203

F. The cup sits to cool in a room at a temperature of
6
9

69

F. Newton's Law of Cooling explains that the temperature of the cup of water will decrease proportionally to the difference between the temperature of the water and the temperature of the room, as given by the formula below:

=


+
(

0



)




T=T
a

+(T
0

−T
a

)e
−kt



=
T
a

= the temperature surrounding the object

0
=
T
0

= the initial temperature of the object

=
t= the time in minutes

=
T= the temperature of the object after

t minutes

=
k= decay constant

The cup of water reaches the temperature of
18
5

185

F after 1.5 minutes. Using this information, find the value of

k, to the nearest thousandth. Use the resulting equation to determine the Fahrenheit temperature of the cup of water, to the nearest degree, after 4.5 minutes.

Enter only the final temperature into the input box.

Answers

The cup of water reaches a temperature of 173 F after 4.5  minutes.

What is temperature?

Temperature is a measure of the average kinetic energy of particles in a system. It is an important physical quantity used to describe the state of a system and is widely used in science, engineering, and everyday life. Temperature is a thermodynamic property of a system that shows how much energy is available to do work. In everyday terms, temperature is a measure of how hot or cold something is.

k = -0.2416

The equation for the cooling rate of the cup of water is:

T(t) = 203- 0.2416t

After 4.5 minutes, the temperature of the cup of water can be found by substituting t = 4.5 into the equation:

T(5) = 203- 0.2416(4.5 ) = 173.08 F

Therefore, the cup of water reaches a temperature of 173 F after 4.5 minutes.

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The terminal side of theta in standard position contains the point (-2, -6). Find the exact value of sin theta.

Answers

The exact value of sin theta as required to be determined in the task content is; sin theta = -3 / 2√10.

What is the exact value of sin theta as required?

It follows from the task content that the exact value of sin theta is required to be determined from the given information.

Since the given terminal side of theta is; (-2, -6) it follows that the length of the hypothenuse in the arrangement is;

= √((-2)² + (-6)²)

= √(4 + 36)

= √40

= 4√10.

Therefore, since sin theta = opposite / adjacent;

Sin theta = -6 / 4√10

sin theta = -3 / 2√10.

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Factorize a2 - b2

[tex]a {?}^{2} - b {?}^{2} \\ \\ [/tex]

Answers

The factorization of the given expression, a² - b², is (a + b)(a - b)

Factorizing an expression

From the question, we are to factorize the given expression.

From the given information, the given expression is

a² - b²

This is a special case in the factorization of polynomials. This is called difference of two squares.

Given the expression

x² - y²

The above expression can be written in the factorized form as

(x + y)(x - y)

Check:

Check by expanding the above factored form

(x + y)(x - y)

Applying the distributive property

x(x - y) + y(x - y)

x² - xy + xy - y²

Simplify further

x² - y²

Thus,

x² - y² = (x + y)(x - y)

In the same manner,

a² - b² = (a + b)(a - b)

Hence, the factorization of a² - b² is (a + b)(a - b)

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The points (7,-5) and (r,5) lie on a line with slope . Find the missing coordinate .

Answers

The missing coordinate is equal to 15.

How to calculate or determine the slope of a line?

In Mathematics and Geometry, the slope of any straight line can be determined by using the following mathematical equation;

Slope (m) = (Change in y-axis, Δy)/(Change in x-axis, Δx)

Slope (m) = rise/run

Slope (m) = (y₂ - y₁)/(x₂ - x₁)

By substituting the given data points into the formula for the slope of a line, we have the following;

5/4 = (5 + 5)/(r - 7)

5/4 = 10/(r - 7)

5(r - 7) = 40

5r - 35 = 40

5r = 75

r = 75/5

r = 15.

Based on the information provided, the slope is the change in y-axis with respect to the x-axis and it is equal to 5/4.

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Complete Question:

The points (7,-5) and (r,5) lie on a line with slope 5/4. Find the missing coordinate

Can someone help me solve question number 14? I've tried to solve it and got 3426 while the answers in the book say it's 2,6. Can someone pls explain why it's wrong?

Answers

Answer:

f(x) = x^3 - 12x^2 + 6x - 8

f'(x) = 3x^2 - 24x + 6 = -30

3x^2 - 24x + 36 = 0

x^2 - 8x + 12 = 0

(x - 2)(x - 6) = 0, so x = 2, 6

Answer:

the values of x are :

x = 2

x = 6

You deposit $400 in an account that pays 2.34% annual
compounded monthly. What is the balance after
interest
10 years?
A=

Answers

The balance after 10 years, considering monthly compounding, would be approximately $512.69.

To calculate the balance after 10 years, we can use the formula for compound interest:

A = [tex]P(1 + r/n)^{(nt)[/tex]

A is the final balance

P is the principal amount (initial deposit)

r is the annual interest rate (in decimal form)

n is the number of times the interest is compounded per year

t is the number of years

In this case, the principal amount (P) is $400, the annual interest rate (r) is 2.34% or 0.0234, the interest is compounded monthly (n = 12), and the number of years (t) is 10.

Using these values, we can calculate the final balance (A):

A = $400(1 + 0.0234/12)⁽¹²ˣ¹⁰⁾

A = $400(1.00195)¹²⁰

A ≈ $400(1.28172)

A ≈ $512.69

We may use the compound interest calculation to determine the balance after 10 years:

A =  [tex]P(1 + r/n)^{(nt)[/tex]

The ultimate balance is A.

P stands for the initial deposit's principal.

The yearly interest rate is represented by the decimal r, while the number of times it is compounded annually is represented by n.

The number of years is t.

In the above scenario, the principle (P) is $400, the annual interest rate (r) is 2.34%, or 0.0234, the interest is compounded on a monthly basis (n = 12), and the time (t) is 10.

These numbers allow us to determine the final balance (A):

A = $400(1 + 0.0234/12)⁽¹²ˣ¹⁰⁾

A = $400(1.00195)¹²⁰

A ≈ $400(1.28172)

A ≈ $512.69

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[tex]\frac{2x-1}{3} -\frac{3x}{4} =\frac{5}{6}[/tex]

Answers

The value of the variable is -14

What are fractions?

Fractions are simple defined as the part of a whole number or variable.

From the information given, we have that;

2x - 1/3 - 3x/4 = 5/6

Find the LCM, we have;

4(2x - 1) - 3(3x) /12 = 5/6

expand the bracket, we get;

8x - 4 - 9x/12 = 5/6

collect the like terms

-x - 4/12 = 5/6

cross multiply the values

-6x - 24 = 60

collect like terms

-6x = 84

make 'x' the subject

x = -14

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An athlete throws a shot put with an initial vertical velocity of 40 feet per second. He releases the shot put at a height of 5.69 feet.

Use an equation that models the height h (in feet) of the shot put as a function of the time t (in seconds) after it is thrown to find the time that the shot put is in the air.

Round your answers to the nearest whole numbers.

Answers

The shot put is in the air for approximately 3 seconds.

The height h (in feet) of the shot put as a function of the time t (in seconds) after it is thrown can be modeled by the equation:

h(t) = h + vt - (1/2)gt²

where v is the initial vertical velocity in feet per second, and s is the initial height in feet.

Here, the initial vertical velocity is 40 feet per second, and the initial height is 5.69 feet. Therefore, we can plug in these values to get:

h = -16t² + 40t + 5.69

To find the time that the shot put is in the air, we need to find the value of t when h = 0, since the shot put will hit the ground when its height is 0.

Therefore, we can set the equation equal to 0 and solve for t:

0 = -16t² + 40t + 5.69

Using the quadratic formula, we get:

t = (-b ± √(b² - 4ac)) / 2a

where a = -16, b = 40, and c = 5.69.

Plugging in these values, we get:

t = (-40 ± √(40² - 4(-16)(5.69))) / 2(-16)

Simplifying, we get:

t ≈ 3 or t ≈ 0.2

Since the shot put cannot be in the air for negative time, the only possible answer is t ≈ 3.

Therefore, the shot put is in the air for approximately 3 seconds.

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a rectangular lot is 135 yards long and 100 yards wide, give the length and width of another rectangular lot that has the same perimeter but a larger area.

Answers

The perimeter of the first lot is 470 yards. To find the dimensions of the second lot, we need to find two numbers whose sum is 235 (half of the perimeter) and whose product is greater than 13500 (the area of the first lot). The dimensions of the second lot are 118 yards by 117 yards.

a simple random sample of 50 adults was surveyed, and it was found that the mean amount of time that they spend surfing the internet per day is 54.2 minutes, with a standard deviation of 14.0 minutes. what is the 99% confidence interval (z-score

Answers

The 99% confidence interval for the population mean time spent on the internet, in minutes, is given as follows:

(48.9, 59.5).

What is a t-distribution confidence interval?

The t-distribution is used when the standard deviation for the population is not known, and the bounds of the confidence interval are given according to the equation presented as follows:

[tex]\overline{x} \pm t\frac{s}{\sqrt{n}}[/tex]

The variables of the equation are listed as follows:

[tex]\overline{x}[/tex] is the sample mean.t is the critical value.n is the sample size.s is the standard deviation for the sample.

The critical value, using a t-distribution calculator, for a two-tailed 99% confidence interval, with 50 - 1 = 49 df, is t = 2.68.

The parameter values are given as follows:

[tex]\overline{x} = 54.2, s = 14, n = 50[/tex]

Then the lower bound of the interval is given as follows:

[tex]54.2 - 2.68\frac{14}{\sqrt{50}} = 48.9[/tex]

The upper bound of the interval is given as follows:

[tex]54.2 + 2.68\frac{14}{\sqrt{50}} = 59.5[/tex]

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The number of times 100 groups took a
selfie is as follows.
Takes
1 2 3
4
Frequency 27 29 18 14
5
12
Find the probability a group will take their
selfie exactly 3 times.
P(3) = [?]

Answers

The probability a group will take their selfie exactly 3 times is 0.18.

We have,

The total groups = 100

The number of groups that took selfies 3 times = 18

Now,

The probability a group will take their selfie exactly 3 times.

= 18/100

= 0.18

Thus,

The probability a group will take their selfie exactly 3 times is 0.18.

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The graph of function fis shown on the coordinate plane. Graph the line representing function g, if g is defined as shown below.
g(x)=f(x + 2)
Drawing Tools
Select
Line
Click on a tool to begin drawing.
-6
-2
Delete
Undo
8
Reset

Answers

A graph representing the function g(x) = -1/2f(x + 2) is shown in the image below.

How to determine an equation of this line?

In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical equation (formula):

y - y₁ = m(x - x₁)

Where:

x and y represent the data points.m represent the slope.

First of all, we would find the slope of this line;

Slope (m) = (y₂ - y₁)/(x₂ - x₁)

Slope (m) = (4 - 0)/(5 - 3)

Slope (m) = 4/2

Slope (m) = 2.

At data point (3, 0) and a slope of 2, a linear equation for this line can be calculated by using the point-slope form as follows:

y - y₁ = m(x - x₁)

y - 0 = 2(x - 3)

y = f(x) = 2x - 6

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A restaurant put out small dishes of butter at each table.
​They divided 1/6 of a pound of butter evenly between
5 dishes.

Answers

Answer:

Step-by-step explanation:

Hello!

1. Start by Plugging your numbers in. now all you have to do is 5 divided by 6! Use a calculator but anything works.

Can someone tell me the original and perpendicular slope of this question

Answers

The slope of the original line of the graph sis found to be 1 and the slope of perpendicular line is -1.

One of the line shown in the graph is passing through the points (0, -7) and (7, 0). Now we have to recall that the slope M of the line L passing from points (a, b) and (c, d) is given as,

M = (d-b)/(c-a)

Also, if the line L is perpendicular to line l, then the slope m of the line l will be given as,

m = -1/M.

So, now the slope of line L is,

M = (0-(-7))/(7-0)

M = 7/7

M = 1

Now, the slope of the perpendicular line l is,

m = -1/1

m = -1.

Hence, the slope of the perpendicular line and original lines are -1 and 1.

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Which composite figure is made up of a cylinder and a half sphere?

Answers

The composite figure that is made up of a cylinder and a half sphere is called a "spherical cylinder."

Solve 2x(3x+5)+3(3x+5)=ax 2 +bx+c

Answers

Answer:

6x² + 19x + 15

Step-by-step explanation:

2x(3x+5)+3(3x+5)

= (3x + 5) (2x + 3)

= 6x² + 9x + 10x + 15

= 6x² + 19x + 15

So, the answer is 6x² + 19x + 15

We can start by simplifying the left side of the equation using the distributive property:

2x(3x+5)+3(3x+5) = (2x)(3x) + (2x)(5) + (3)(3x) + (3)(5)

= 6x^2 + 10x + 9x + 15

= 6x^2 + 19x + 15

Now we can compare this expression with the right side of the equation, which is a polynomial in x with unknown coefficients a, b, and c:

ax^2 + bx + c

Since the two sides are equal, their corresponding coefficients must be equal as well. This gives us a system of three equations in three unknowns:

a = 6 (the coefficient of x^2)

b = 19 (the coefficient of x)

c = 15 (the constant term)

Therefore, the solution to the equation 2x(3x+5)+3(3x+5)=ax^2+bx+c is:

2x(3x+5)+3(3x+5) = 6x^2 + 19x + 15

PQR is a tangent to circle QABCD. AB || QD. CB=CD. Let 2, -30° and D₂ =70°. P A 1.1 Calculate Q₁. 1.2 Prove that C=110 A 1.3 Calculate B1​

Answers

To solve the problem, we need to use the properties of tangents to circles and the fact that AB || QD.

1.1. Calculate Q₁:

Since PQR is tangent to the circle at point Q, we know that angle PQR is 90 degrees. We also know that angle QRD is 70 degrees (given in the problem). Since AB || QD, we know that angle QAB is equal to angle QRD (alternate angles). Therefore, angle QAB is also 70 degrees.

Using the fact that the angles in a triangle add up to 180 degrees, we can calculate angle AQB as follows:

angle AQB = 180 - angle QAB - angle QBA
= 180 - 70 - 90
= 20 degrees

Since angle QAB is 70 degrees, we can use the fact that the angles in a triangle add up to 180 degrees to find angle QBC:

angle QBC = 180 - angle BQC - angle QCB
= 180 - 90 - angle QCB
= 90 - angle QCB

Since CB = CD, we know that angle QBC = angle QCD. Therefore, we can write:

angle QBC = angle QCD = (180 - angle D₂)/2 = (180 - 70)/2 = 55 degrees

Substituting this into the equation we derived earlier for angle QBC, we get:

55 = 90 - angle QCB

Solving for angle QCB, we get:

angle QCB = 35 degrees

Finally, we can use the fact that the angles in a triangle add up to 180 degrees to find angle BQA:

angle BQA = 180 - angle AQB - angle QBA
= 180 - 20 - 90
= 70 degrees

Therefore, Q₁ = angle BQA - angle QCB = 70 - 35 = 35 degrees.

1.2. Prove that C=110:

Since AB || QD, we know that angle AQB is equal to angle QCD (alternate angles). Therefore, we can write:

angle QCD = angle AQB = 20 degrees

We also know that CB = CD. Therefore, triangle BCD is an isosceles triangle, and we can write:

angle BDC = angle CBD = (180 - angle D₂)/2 = (180 - 70)/2 = 55 degrees

Using the fact that the angles in a triangle add up to 180 degrees, we can write:

angle BCD = 180 - angle CBD - angle BDC
= 180 - 55 - 55
= 70 degrees

Therefore, C = 180 - angle QCD - angle BCD = 180 - 20 - 70 = 90 degrees.

Since CB = CD, we know that angle CBD is also equal to (180 - angle D₂)/2 = 55 degrees. Therefore, we can write:

angle BDA = 180 - angle AQB - angle CBD
= 180 - 20 - 55
= 105 degrees

Therefore, C + BDA = 90 + 105 = 195 degrees. Since CB = CD, we know that angle CBD is also equal to angle BDC = 55 degrees. Therefore, we can write:

angle BDC = 180 - angle BDA - angle ADB
= 180 - 105 - angle ADB

Solving for angle ADB, we get:

angle ADB = 20 degrees

Therefore, C = angle ADB + angle CBD = 20 + 55 = 75 degrees

The quadratic equation h=-16t^2+32t+2
represents the height, h (in feet), of a ball kicked after t seconds. Answer each question. Express each answer as a decimal rounded to the nearest hundredth.
How long will it take the ball to reach 18 feet?
When will the object be at 10 feet?
When will the ball hit the ground?

Answers

By solving the quadratic equations,

It will take the ball 1 second to reach 18 feet

It will take the ball 1.71 seconds to be at 10 feet

It will take the ball 2.06 seconds to hit the ground

Solving quadratic equations: Determining how long it would take the ball to reach a height

From the question, we are to determine how long it would take the ball to reach 18 feet

To determine how long it would take the ball to reach 18 feet, we will set h = 18 in the equation

The given equation is

h = -16t² + 32t + 2

Put h = 18

18 = -16t² + 32t + 2

Rearrange

16t² - 32t - 2 + 18 = 0

16t² - 32t + 16 = 0

16t² - 16t - 16t + 16 = 0

16t(t - 1) -16(t - 1) = 0

(16t - 16)(t - 1) = 0

16t - 16 = 0 OR t - 1 = 0

16t = 16 OR t = 1

t = 16/16 OR t = 1

t = 1 OR t = 1

Hence,

t = 1 second

Hence, it will take the ball 1 second to reach 18 feet

To determine how long it will take the ball to reach 10 feet, we will set h = 10

h = -16t² + 32t + 2

Put h = 10

10 = -16t² + 32t + 2

Rearrange

16t² - 32t - 2 + 10 = 0

16t² - 32t + 8 = 0

Using the quadratic formula,

t = 0.29 second OR t = 1.71 seconds

The ball will hit the ground when h = 0

Set h = 0 in the equation

h = -16t² + 32t + 2

0 = -16t² + 32t + 2

16t² - 32t - 2 = 0

Using the quadratic formula,

t = -0.06 OR t = 2.06

Since t cannot be negative,

t = 2.06 seconds

Hence, it will take 2.06 seconds for the ball to hit the ground

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Evaluate the following expression.

25
1/25
-25
-1/25

Answers

The expression is evaluated to 1/25. Option B

What are index forms?

Index forms are simply described as distinct mathematical forms that are used in the representation of variables or numbers that are too large or too small in more convenient forms.

These index forms are also referred to as scientific notations or standard forms.

Some rules of index forms are;

Add the exponent value of variables or number that have the same bases and are being multipliedSubtract the exponent value of variables or number that have the same bases and are being dividedThe value of a number with negative power is its inverse

From the information given, we have that;

1/5⁻²

Take the inverse power

1/25

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Please helppp. What’s the area and circumference??!

Answers

The value of EF is 26

What is segment of a circle?

A segment of a circle can be defined as a region bounded by a chord and a corresponding arc lying between the chord's endpoints.There is minor segment and major segment.

Since the two arcs are equal, i.e arc EF = arc CD, therefore,

chord EF = chord CD

9x-1 = 41 - 5x

collecting like terms

9x +5x = 41+1

14x = 42

divide both sides by 14

x = 42/14

x = 3

Therefore EF = 41-5x

= 41-5×3

= 41-15

= 26

therefore the value of EF is 26

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The slope of the line tangent to the graph of y = \ln \left( {1 - x} \right) at x=-1 is
(A) -1
(B) - \frac{1}{2}
(C) \frac{1}{2}
(D) \ln \left( 2 \right)
(E) 1

Answers

To find the slope of the line tangent to the graph of y = ln(1 - x) at x = -1, we can use the derivative of the function.

The derivative of y with respect to x can be found using the chain rule:

dy/dx = d/dx[ln(1 - x)] = 1 / (1 - x) * (-1) = -1 / (1 - x)

Substituting x = -1 into the derivative, we have:

dy/dx = -1 / (1 - (-1)) = -1 / 2

Therefore, the slope of the line tangent to the graph at x = -1 is -1/2.

The correct answer is (B) -1/2.

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