use the squared identities to simplify 2 cos^2 x cos^2 x

Answers

Answer 1

Answer:

Option A

Step-by-step explanation:


Related Questions

In order for the data in the table to represent a linear function
with a rate of change of -8, what must be the value of m?
Om = 2
Om = 3
Om = 19
m = 35

Answers

Answer:

m = 19

Step-by-step explanation:

With a rate of change of -8

27 - 8 = 19

16 - 8 = 11

so m = 19

Answer:

Third option: [tex]m=19[/tex]

Step-by-step explanation:

The rate of change is the slope of the line.

The formula for calculate the slope is:

[tex]slope=\frac{y_2-y_1}{x_2-x_1}[/tex]

You know that:

[tex]slope=-8\\y_2=m\\y_1=27\\x_2=11\\x_1=10[/tex]

Then, you can substitute them into the formula:

[tex]-8=\frac{m-27}{11-10}[/tex]

Finally, you must solve for "m":

[tex]-8=\frac{m-27}{11-10}\\\\-8(1)=m-27\\\\-8+27\\\\m=19[/tex]

Peter bought some bicycles for 4,000 he sold them for 6,200 making $50 on each of the bicycles how many bicycles were there​

Answers

Answer:

44 bicycles.

Step-by-step explanation:

First we find how much profit he made by subtracting 6200 by 4000. When we do this, we get 2200.

Then, we divide 2200 by 50, because he earned 50 for each bike, which gives us 44.

Answer:

there were 124 bicycles. : )

Step-by-step explanation:

What would be the surface area of the prism if the length of each side is cut in half?
A)165 square centimeters
B)178 square centimeters
C)181 square centimeters
D)362 square centimeters

Answers

11/2 = 5.5

10/2 = 5

12/2 = 6

SA = 5.5 x 5 x 2 + 5.5 x 6 x 2 + 5 x 6 x 2

SA = 55 + 66 + 60

SA = 181

The answer is C) 181 cm²

Correct Option is C , 181 square cms.

l = 11cm

b = 10cm

h = 12cm

Surface Area of Cuboid:

A cuboid has 6  rectangular faces, the surface area of the whole cuboid is the sum of 6 rectangular surface areas of cuboid.

surface area = l x b + b x h + h x l + l x b + b x h + h x l

Surface area of cuboid = 2 x ((l x b) + (b x h) + (h x l))

When the length of each side is cut in half so, l, b and h decreases by 2.

l =  [tex]\frac{l}{2}[/tex] = [tex]\frac{11}{2}[/tex] = 5.5cm

b = [tex]\frac{b}{2}[/tex] = [tex]\frac{10}{2}[/tex] = 5cm

h = [tex]\frac{h}{2}[/tex] = [tex]\frac{12}{2}[/tex] = 6cm

Surface Area of the cuboid = 2 x ((l x b) + (b x h) + (h x l))

=>  2 x ((5.5 x 5) + (5 x 6) + (6 x 5.5))

=> 2 x (27.5 + 30 + 33)

=> 2 x (90.5)

=> 181 [tex]cm^{2}[/tex]

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Question is in the picture

Answers

Answer:

i cant see the picture

Step-by-step explanation:

Each day for several days, the change in the price of a share of stock was -$3. The total change in price during those days was -$36. Over how many days is the price decline?

Answers

12

Step-by-step explanation:

-36/3 is -12 which means 12 days of decline thank u come again

Final answer:

To determine the number of days over which the price of a stock declined by $36 at a rate of $3 per day, divide the total change by the daily change, resulting in 12 days.

Explanation:

The problem described is a typical arithmetic problem where we want to find out over how many days a stock has declined in price if it dropped by a certain amount each day. To solve this, let's use linear equation reasoning. The total change in the price of the stock is -$36, and the daily change is -$3. We can express the total change (T) as the product of the daily change (d = -$3) and the number of days (n), so we have T = dn.

To find the number of days, we rewrite this equation as n = T/d, and substitute the given values to get n = -$36/-$3. Thus, n = 12. Therefore, the price of the stock declined over 12 days.

The sum of one-third of a number and three-fourths of the number exceeds that number by one.

Which equation could be used to find the number?

1/3n = 3/4n + 1
1/3n + n 3/4= n - 1
1/3n + n 3/4= n + 1

Answers

The answer would be...

1/3n + 3/4n = n + 1

^^^That would be the last option

Hope this helped!

~Just a girl in love with Shawn Mendes

Answer:

The correct answer is last option

1/3n + n 3/4= n + 1

Step-by-step explanation:

It is given that,the sum of one-third of a number and three-fourths of the number exceeds that number by one

To find the correct option

Let 'n' be the number, one- third of the number = 1/3(n)

three - fourths of the number = 3/(4n)

Therefore the equation becomes,

1/(n) + 3/4(n)  = n + 1

Therefore the correct answer is last option

How many cubes with side lengths of 1/4 does it take to fill the prism?​

Answers

Answer:

[tex]\large\boxed{224\ cubes}[/tex]

Step-by-step explanation:

[tex]\bold{METHOD\ 1}\\\\\text{Calculate the volume of a prism:}\\\\V_{p}=(2)\left(\dfrac{7}{4}\right)(1)=3.5\ cm^3\\\\\text{Calculate the volume of a cube:}\\\\V_c=\left(\dfrac{1}{4}\right)^3=\dfrac{1}{64}\ cm^3\\\\\text{Calculate how many times the volume of the prism is greater}\\\text{than the volume of the cube:}\\\\\dfrac{V_p}{V_c}=\dfrac{3.5}{\frac{1}{64}}=3.5\cdot64=224[/tex]

[tex]\bold{METHOD\ 2}\\\\2cm:\dfrac{1}{4}cm=2\cdot4=8\\\\\dfrac{7}{4}cm:\dfrac{1}{4}cm=\dfrac{7}{4}\cdot\dfrac{4}{1}=7\\\\1cm:\dfrac{1}{4}cm=1\cdot4=4\\\\8\cdot7\cdot4=224\ (cubes)[/tex]

What is the domain of the function y=^3squareroot of x
PLEASE HELP

Answers

Answer:

[0,∞)

Step-by-step explanation:

We can easily solve this question by plotting the equation with the use of a plotting tool or any graphing calculator.

The equation is

y=3^(√x)

Please see attached image

Since the x is inside a square root, we know that x must be greater or equal to zero.

By looking at the graph, we can check that the domain of the function is

[0,∞)

The angles below are supplementary. What is the value of x?
6x + 48)​

Answers

Answer:

8 is your answer.

Step-by-step explanation:

If i think that i'm doing this right.

6x + 48

6       6   divide by 6 on both sides.

  x = 8    

Hope my answer has helped you!

Four different sets of objects contain 4, 5, 6, and 8 objects, respectively. How
many unique combinations can be formed by picking one object from each
set?

Answers

Answer:

960

Step-by-step explanation:

We can find the number of unique combinations by

Multiplying 4*5*6*8

960

There are 960 possible choices  by picking 1 from each group

bought a new tent to take on the next Cub Scouts camping trip. The center pole of the to tent is 16 ft. tall and the sides of the tent are 20 ft. on the slant. How wide is the base of the tent?​

Answers

Answer:

24 ft

Step-by-step explanation:

The is a center pole and two side poles and the bottom. This triangle can be broken into 2 smaller triangles. When finding the base this requires the quadratic formula. a^2+b^2= C^2

We are given a and c. A is 16 and c is 20. The equation can be changed to c^2-a^2=b^2.

20^2-16^2=b^2

400-256=b^2

144=b^2

12=b

But remember there are two triangles so the base is 2b which is 24

Which graph shows the solution to the inequality -3x-7 <20?

Answers

Answer:

Graphs..?

Step-by-step explanation:

For this case we must indicate the graph of the following inequality:

[tex]-3x-7 <20[/tex]

We add 7 to both sides of the inequality:

[tex]-3x <20 + 7\\-3x <27[/tex]

We divide between -3 to both of the inequality taking into account that the meaning changes:

[tex]x> \frac {27} {- 3}\\x> -9[/tex]

Answer:

[tex]x> -9[/tex]

See attached image

I need help with B, C, and D​

Answers

B)

as you recall yesterday, the "far arc near arc" formula, well, notice, the angle at XDY intercepts the circle at XY, with a "near arc" of 100°, and a "far arc" of 360° - 100° = 260°.

so using the far arc near arc formula

[tex]\bf \measuredangle D=\cfrac{260-100}{2}\implies \measuredangle D=\cfrac{160}{2}\implies \measuredangle D = 80[/tex]

the twin angles at A and C will take the slack from all interior angles of 180° - 80° = 100°, so then ∡A = ∡C = 50°.

What is the area of the composite figure

Answers

Answer: Composite Figures. A figure (or shape) that can be divided into more than one of the basic figures is said to be a composite figure (or shape). For example, figure ABCD is a composite figure as it consists of two basic figures. That is, a figure is formed by a rectangle and triangle as shown below.

Step-by-step explanation:

Answer:

96

Step-by-step explanation:

Name
12. Rhea used a Venn diagram to sort shapes. What label
could she use for circle A?
Polygons with all
Sides of Equal Length

Answers

Answer:

poloygons with right angles

Step-by-step explanation:

The Venn diagram A have polygons having right angle.

What is Venn Diagram?

A Venn diagram is a diagram that employs circles to depict the relationships between items or finite groupings of things. Circles that overlap share characteristics, whereas circles that do not overlap do not. Venn diagrams are useful for visualising the similarities and differences between two concepts.

We have Venn diagram having geometrical shapes

In Venn diagram A the geometrical shapes are

Right angled TriangleRectanglePentagon

Thus, the Venn diagram A have polygons having right angle.

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what is the meaning of the slope of mr taylor's line? pls help! a lot of points

Answers

Answer:

The slope is the percentage of test score per number of days absent

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

[tex]m=\frac{y2-y1}{x2-x1}[/tex]

we have

y -----> is the percentage of test score

x ----> is the number of days absent

so

That means -----> The slope is the percentage of test score per number of days absent

In this problem the slope is negative

so

If the percentage test score increases----> the number of days decreases

If the percentage test score decreases----> the number of days increases

The perimeter of rectangular photo is 72cm. The length is twice the width what are and width of the photo?

(Hint: The formula for perimeter is 2w+ 21= P where w is the width I is the length and P is the perimeter.)

Answers

Answer:

w =12 cm

l = 24 cm

Step-by-step explanation:

P = 2w + 2l

We know the perimeter is 72 and the length is twice the width (l = 2w)

Substituting P = 72 and l = 2w

72 = 2w + 2(2w)

72 = 2w+ 4w

Combine like terms

72 = 6w

Divide each side by 6

72/6 =6w/6

12 = w

Now we need to find l

l = 2w

l =2*12

l = 24

True or False ? The distance formula is equivalent to the Pythagorean theorem if you are
trying to find the distance between a point in the plane and the origin.

Answers

I believe that it is true due to it, the distance formula uses x and y coordinates. So, they're the same thing in two different types, or so..

____

I hope this helps, as always. I wish you the best of luck and have a nice day, friend..

F= 8/5 (c) + 40 when c=5

Answers

Answer:

F = 48

Step-by-step explanation:

F= 8/5 (c) + 40

Let c=5

F = 8/5 * 5 +40

  = 8 + 40

  = 48

The answer would be F=48

8/5•5+40

Reduce the numbers

8+40

Add

F=48

You put the names of all the students in your class in a paper bag. There are 19 boys and 12 girls. If you draw a name at random, what is P(boys name)?

Answers

Hello there!

Your question is asking what the probability of picking up a boys name out of the paper bag.

Answer: [tex]\frac{19}{31}[/tex]

In order to solve this problem, we're going to have to find the total amount of names in the paper bag and the amount of boy names there are.

When you read the question, you would find some key information in it.

Key Information:

19 boys

12 girls

With the information above, we can find the probability of picking out a boy name out of the paper bag.

To find the porbability, we're going to need to get the total amount of names in the paper bag. We would just add 19 + 12.

[tex]19+12=31[/tex]

Now, we know that there are 31 total names in the bag.

But, we are trying to find the chances of pulling out a boys name. There are 19 boy names in the bag.

We would use the number 19 as our numerator and 31 as our denominator.

Your fraction should look like this:

[tex]\frac{19}{31}[/tex]

The fraction above would represent the probability to pick out a boy name.

Since 19 is a prime number, we wouldn't simplify the fraction.

Therefore, the chances of picking out a boy name from the paper bag is [tex]\frac{19}{31}[/tex]

[tex]\frac{19}{31}[/tex] should be your FINAL answer.

I hope this helps!Best regards, MasterInvestor

Answer this question thanks :)

Answers

First multiply 2 to both sides to isolate h. Since 2 is being divided by h, multiplication (the opposite of division) will cancel 2 out (in this case it will make 2 one) from the right side and bring it over to the left side.

4 < [tex]\frac{h}{2}[/tex]

4 * 2 < [tex]\frac{h}{2}[/tex] * 2

8 < h

For the graph will you have a empty or colored in circle?

If the symbol is ≥ or ≤ then the circle will be colored in. This represents that the number the circle is on is included.

If the symbol is > or < then the circle will be empty. This represents that the number the circle is on is NOT included.

Which direction will the ray go?

If the variable is LESS then the number then the arrow will go to the left of the circle.

If the variable is MORE then the number then the arrow will go to the right of the circle.

In this case your inequality is:

8 < h OR h > 8

aka 8 is less then h OR h is greater then 8

This means that the graph will have an empty circle and the arrow will go to the right of 8. Look at image below

Hope this helped!

~Just a girl in love with Shawn Mendes

Answer:

h>8

Step-by-step explanation:

4<h/2

multiply both sides by 2

8<h

6+18p-5=8p+13-2 slove for p

Answers

Answer:

p = 1

Step-by-step explanation:

6+18p-5=8p+13-2           Collect the like terms on the left and right side

6 - 5 + 18p = 8p + 13 - 2

1 + 18p = 8p + 11                Subtract 1 from both sides.

18p = 8p + 11 - 1                 Combine

18p = 8p +  10                    Subtract 8p from both sides

18p - 8p = 10                      Combine the left

10p = 10                             Divide by 10

10p/10 = 10/10

p = 1

if f(x)=3x+10x and g(x)=4x-2, find (f-g)(x)

Answers

Answer:

(f-g)(x) = 9x + 2

Step-by-step explanation:

(f-g)(x) = (3x+10x) - (4x-2)

          = 3x + 10x - 4x + 2

          = 9x + 2

Answer: 3x + 6x + 2

Step-by-step explanation: would be the other answer for APEX as of 9/13/19

Does the image represent A function or a relation?

6
4
2

Answers

what about this picture/function/expression?

well, we have 3 points over the y-coordinate, but but but, every point has the same x-coordinate, whatever that might be, and so they form a vertical line.

does this straight vertical line pass the vertical line test? nope.

other way to see it is, a function has no x-repeats, the x-coordinate for every point must not be repeated, in this case it is the same for all, so it repeats thrice, so is not a function, just a relation.

The diagram above shows the plan of a drive way to a house.

The driveway is made from concrete. The perimeter of the driveway is 64 m. The concrete is 15 m thick. Now calculate the volume of concrete used for the driveway. Give your answer in cubic meters..

A challenging question.. Someone please help me.. ​

Answers

First you want to find the area of the driveway. The easiest way to do this is to separate the rectangles. The area of the small rectangle will be 6 because 2x3=6, the area of the large rectangle will be 216 because 18x12=216. Then you will add the two areas back together, 216+6=222. Using the formula volume=baseXheight you will do 222x15 to get 3,330 cubic meters (because height and depth work the same)

Final answer:

The volume of the driveway is calculated by multiplying the area of the driveway by the thickness. The volume will be in cubic meters if all measurements are in meters. For accurate calculation, more specific dimensions are needed beyond just perimeter and thickness.

Explanation:

To help calculate the volume of the concrete used in the driveway, you'll need the perimeter and the thickness of the driveway. The perimeter being stated as 64m doesn't give us enough detail because to calculate the volume of a prism (which the driveway essentially is), we need the area of the base (in this case the area of the driveway's surface), not just the perimeter.

However, if we assume that the driveway is of a standard shape like a rectangle and you also have the structural width, you could calculate the area and then the volume. Here's a generic explanation:

1. If you have a rectangular drive, area would be calculated as length * width.

2. You then calculate volume by multiplying the area by the thickness of the driveway. That is, Volume = area * thickness.

Note: This will give you the volume in cubic meters provided all measurements were in meters.

For us to compute this for your driveway, we'd need more dimensions in addition to the 15m thickness and 64m perimeter.

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Use the graph of the function y=4^x to answer the following questions

Answers

The domain of a function is all the x-values which it passes through.  The function is a continuous exponential function, and therefore, it will contain every x value.  The answer is:

The domain of the function is negative infinity to positive infinity.

Hope this helps!!

The domain of a function is the set of input values, the function can take.

The domain of the function is negative infinity to positive infinity,

The function is given as:

[tex]\mathbf{y = 4^x}[/tex]

The function is an exponential function, and there are no restriction as to the input values of an exponential function.

i.e: [tex]\mathbf{(-\infty, \infty)}[/tex]

Hence, the domain of the function is negative infinity to positive infinity,

Read more about domain at:

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In a city the distance between the library and the police station is 3 miles less than twice the distance between the police station and the fire station. The distance between the library and the police station is 5 miles. How far apart are the police station and the fire station?

Answers

Answer:

The distance between the police station and the fire station is 4 miles

Step-by-step explanation:

* Lets study the situation in the problem to solve it

- In the city there are three places, library , police station and fire station

- The distance between the library and the police station is 3 miles

  less than twice the distance between the police station and the

  fire station

- The distance between the library and the police station is 5 miles

* Lets change all of these situation to equations

# Let the distance between the library and the police station is x

# Let the distance between the police station and the fire station is y

∵ The distance between the library and the police station (x) is 3 miles

  less than twice the distance between the police station and the

  fire station (y)

∴ x = 2y - 3

∵ The distance between the library and the police station is (x) 5 miles

∴ x = 5

- Substitute the value of x in the equation above

∵ x = 2y - 3

∵ x = 5

∴ 5 = 2y - 3 ⇒ add 3 to both sides

∴ 8 = 2y ⇒ divide both sides by 2

∴ 4 = y

∵ y is the distance between the police station and the fire station

∴ The police station is 4 miles apart from the fire station

* The distance between the police station and the fire station is 4 miles

Factories 24x^2-41x+12

Answers

Answer:

(3x - 4)(8x - 3)

Step-by-step explanation:

Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 24 × 12 and sum = - 41

The required factors are - 32 and - 9

Use these factors to split the x- term

24x² - 32x - 9x + 12 ( factor the first/second and third/fourth terms )

= 8x(3x - 4) - 3(3x - 4) ← factor out (3x - 4) from each term

= (3x - 4)(8x - 3) ← in factored form

What is the degree of x^5 - 4x + 2?
A. 3
B. 4
C. 6
D. 5

Answers

It’s 5. Because it’s the greatest exponent.
Hope this helps!

Answer:

D. 5

Step-by-step explanation:

x^5 - 4x + 2

The degree of the polynomial is the degree of the highest term

x^5:  5th

4x: 1st

2: 0

So the degree of the polynomial is degree 5

Patterns and lines for (0,0) (4,-12)

Answers

-12-0/4-0 = -12/4 = -3

0= -3(0) + b
B= 0

Y= -3x


Hope this helps!
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