Mathematics Middle School

I'd like an explanation on how to factor and simplify 1 - 2sin²x + sin⁴x and turn that into cos⁴x

thank you!

Answers

Answer 1

Answer:

I unveil the mysteries and secrets of trigonometry & you'll love it.

Step-by-step explanation:

Related Questions

i really need help on this

i really need help on this

Answers

Answer:

b

Step-by-step explanation:

first, figure out the radius. the radius is the 1/2 of the diameter, so 5. in the equation, the formula is pi x radius^2. so 5^2 is 25. then 25x3.14 is b, and we have our answer.

Answer:

b

Step-by-step explanation:

10 divided by 2=5 radius

to get area = Radius^2 x pi

5x5x3.14= 78.5 square units

Hope this helped!

The TV streaming service changed their pricing from $15 per month to $12 per month . By what percent did the price per month change?

plz help asap

Answers

Answer:

I think 3 percent

Step-by-step explanation:

I believe the first answe is correct of 3%

What is the area of a rectangle with a length of Four and two-fourths meters and a width of Seven and five-sixths meters? 50 POINTS

Thirty-five and six twenty-fourths m2
Twenty-eight and ten twenty-fourths m2
Twenty-eight and seven-tenths m2
Twenty-two and ten-twelfths m2

Answers

Answer:

.

Step-by-step explanation:

.

The area of the rectangle will be 35⁵/₂₄ square meters.

What is the area of the rectangle?

The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the rectangle in a two-dimensional plane is called the area of the rectangle.

The area of the rectangle is calculated by the formula below:-

Area =  Length x Width

Area =  4⁴/₄ x 7⁵/₆

Area = (18 / 4) x ( 47 / 6 )

Area = 141 / 4

Area  =  35⁵/₂₄ square meters

Therefore, the area of the rectangle will be 35⁵/₂₄ square meters.

Pls help me it’s due tomorrow

Pls help me its due tomorrow

Answers

Here is an example of how to draw an isosceles trapezoid:

   _______

 /                 \

/_________\

In this trapezoid, the two parallel sides (the top and bottom sides) are of equal length, and the two non-parallel sides (the left and right sides) are also of equal length. The angles between the top and left sides and between the top and right sides are equal, as are the angles between the bottom and left sides and between the bottom and right sides.

What is an isosceles trapezoid?

An isosceles trapezoid is a type of trapezoid where the two non-parallel sides of the trapezoid are of equal length. This means that the trapezoid has a line of symmetry through its mid-point, which divides the trapezoid into two congruent triangles. The two parallel sides of an isosceles trapezoid are also referred to as bases, and the height of the trapezoid is the perpendicular distance between the two bases.

Because an isosceles trapezoid has two congruent triangles, the angles opposite these sides are also congruent. Therefore, an isosceles trapezoid has two pairs of congruent angles, with each pair containing one acute angle and one obtuse angle. The acute angles are located adjacent to the parallel sides, while the obtuse angles are located adjacent to the non-parallel sides.

Isosceles trapezoids have several interesting properties, including that the diagonals of an isosceles trapezoid are congruent, and that the diagonals bisect each other. Additionally, the length of each diagonal can be found using the Pythagorean theorem, and the area of an isosceles trapezoid can be determined using the formula:

Area = ((a + b) / 2) * h

Where "a" and "b" are the lengths of the two parallel sides (bases) and "h" is the height of the trapezoid.

PART B:

An isosceles trapezoid is a quadrilateral with two parallel sides (the bases) and two non-parallel sides of equal length. A parallelogram is also a quadrilateral with two pairs of parallel sides.

An isosceles trapezoid can be thought of as a special case of a parallelogram where one pair of opposite sides is shorter than the other pair. In fact, if you extend the non-parallel sides of an isosceles trapezoid until they intersect, you will get a parallelogram with the same base and height as the original trapezoid.

Conversely, if you take a parallelogram and draw a line segment parallel to one pair of opposite sides, you will get an isosceles trapezoid. This means that every isosceles trapezoid can be thought of as a parallelogram with a missing piece, and every parallelogram can be thought of as an isosceles trapezoid with extra pieces added on.

So, in summary, isosceles trapezoids and parallelograms are related in that isosceles trapezoids can be thought of as special cases of parallelograms, and parallelograms can be thought of as isosceles trapezoids with extra pieces added on.

PART C:

No, we cannot use the term "isosceles" to describe a rectangle because a rectangle, by definition, has four right angles and opposite sides that are parallel and congruent to each other. An isosceles trapezoid, on the other hand, has only one pair of parallel sides and two non-parallel sides that are congruent to each other.

The term "isosceles" is typically used to describe triangles or trapezoids where two sides are congruent to each other. In an isosceles triangle, two sides are equal in length, while in an isosceles trapezoid, two non-parallel sides are equal in length. However, in a rectangle, all four sides are equal in length, not just two.

Therefore, while we can describe a rectangle as having all sides congruent to each other, we cannot describe it as an isosceles rectangle because "isosceles" implies only two sides are congruent, which is not the case for a rectangle.

Learn more about Isosceles triangles/shapes:

https://brainly.com/question/29618252

#SPJ1

PartB. The parallelogram is a quadrilateral that has both pair of opposite sides parallel. The isosceles trapezoid whose legs have the same length. Long story short, parallelograms can’t be be and aren’t isosceles trapezoids.
PartC, No, a triangle can because the “legs” are the same size and aren’t parallel.
PartA
Pls help me its due tomorrow

Please answer the bottom question please (the cylinder question)! The first one has been answered already.

Please answer the bottom question please (the cylinder question)! The first one has been answered already.

Answers

Answer:7,065

Step-by-step explanation: 50x75x3.14 then subtract 20x75x3.14

The answer to the question is 7,065

Math needed in 20-30 mins Pls

Math needed in 20-30 mins Pls
Math needed in 20-30 mins Pls
Math needed in 20-30 mins Pls

Answers

Answer:

the two accounts don't compare and account A earned 180

Step-by-step explanation:

interest =beginning amount or principal amount *rate *time in years /100 so that would be 1500*4*3/ 100 and 1500*6*1.9/100

Solve 7^ x-1 = 49 ^4-x

Solve 7^ x-1 = 49 ^4-x

Answers

Answer:

Step-by-step explanation:

Solve 7^ x-1 = 49 ^4-x

9 The Spartans are planning a field trip. The trip costs $5.75 for each student ticket and a flat fee of $85 for the buses (no matter how many buses are used). Write an expression that would help the teachers find the total cost if n amount of students are invited to the field trip.

Answers

Answer:

5.75n + 85 (=, \(\geq\))

Step-by-step explanation:

I can't write the number of money cost because that wasn't provided, other then that, this is what I came up with. Whatever the cost is, put it at the end.

please help quick!!!

please help quick!!!

Answers

Answer:

75

Step-by-step explanation:

Volume = 1/2*B*H

So 10 times 3 times 5 divided by 1/2. 10 times 3 is 30, multiplied by 5 is 150.

150 divided by 0.5 (1/2) is 75.

Which fraction has the same value as 55.5¯%?

A: 3/5
B: 5/9
C: 5/11
D: 5/12

Answers

Option B is the right answer

none of these, the only fraction that is the same value is 111/2, and that's not listed from the multiple choice

PLEASE HURRY!!!!!!!!!!!!!!!!!!!!!!

PLEASE HURRY!!!!!!!!!!!!!!!!!!!!!!

Answers

C. 167 243/386 I think

Answer:

167 243/386

Step-by-step explanation:

You have a pizza with diameter 12
2
3 in., and a square box that is 12.65 in. across. Write 12
2
3 as a decimal. Can you fit the pizza inside the​ box?
What is the decimal expansion for 12
2
3​?
A.12.6
B.12.65
C.12.6
D.12.66
pls help me

Answers

Answer:

D is the right choice and no you cannot fit the pizza inside the box.

Step-by-step explanation:

D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.

Answer:

I believe the answer is D.

Step-by-step explanation:

GOOGLE

Does anyone have the answer key to "Understand Systems of Linear Equations I-ready level H instruction?"

Answers

Answer:

no bro, sorry. even though I needed to I don't have it

One mile is about 1.6 km. How many miles are in 10 km?
(Please show work)

Answers

Answer:

6.25 or 6 1/4

Step-by-step explanation:

10 ÷ 1.6 = 6.25 or 6 1/4

6.25, 10/1.6=6.25 should be the answer

What is the mode of this data set: 17, 13, 18, 20, 17, 15, 12
A)19
B)17
C)16
D)20

Answers

Answer:

17

Step-by-step explanation:

it occurs the most number of times

Answer:

17

Step-by-step explanation:

mode = most occuring number in a data set

Which of the following problems can be solved by using the equation,
12h + 300 = 10h + 400 , where h represents the number of hours worked?

F Job A pays 12 dollars per hour with a $400 signing bonus, while Job B
pays 10 dollars per hour with a $300 signing bonus, Write an equation to
calculate the number of hours, h, an employee will have to work to earn an
equal amount of money for Job A and Job B.

G Job A pays provides a $300 signing bonus and pays 12 dollars per hour,
while Job B pays 10 dollars per hour with a $400 signing bonus and a $100
uniform fee. Write an equation to calculate the number of hours, h, an
employee will have to work to earn an equal amount of money for Job A
and Job B.

H Job A pays 12 dollars per hour with a $300 signing bonus, while Job B
pays 10 dollars per hour with a $400 signing bonus. Write an equation to
calculate the number of hours, h, an employee will have to work to earn an
equal amount of money for Job A and Job B.

J Job A pays a $400 signing bonus and 10 dollars per hour, while Job B
pays 12 dollars per hour with a $40 uniform charge per paycheck. Write an
equation to calculate the number of hours, h, an employee will have to work
to earn an equal amount of money for Job A and Job B.

please HELP!!

Answers

Answer:

12h+300=10h+400

first you get h alone on one side so you subtract 10 from 12 because they are like terms. and you are subtracting because its the oppiste

sign of +10  so it turns to negitive -10

12h-10h=2h

then you subtract 300 from 400 because they are like termd

400-300=100

then you divide 100 by 2

2h=100

h=50

h= 50

Step-by-step explanation:

Chen df hehebrhd r here rbdbfh

A juice bottle has a liquid volume of 2 pints. How many quarts are in 50 juice bottles.
Please answer ASAP!

Answers

im pretty sure it’s 50 quarts

For what value(s) of k will the relation not be a function?
1.B={(k^2-5k,10),(k+7,4)}
2.R={(k^3-5k^2+3k,-5),(-k,4)}
3.S={(|k+1|+2,4),(8,7)}
Solving any helps, but if you can solve all of them I would be so grateful and I will mark brainliest.

Answers

Answer:

b=k3+24k2−3700k

r=(k3−5k2+3k−5)((−k)(4))

87(|k+1|)+2088

Step-by-step explanation:

Giving away 60 points, answer quick!!

What is the exact circumference of the circle?
Responses

10π ft

20π ft

40π ft

60π ft

Giving away 60 points, answer quick!!What is the exact circumference of the circle?Responses10 ft20 ft40

Answers

Answer:

40π ft. is the circumference of the circle.

Step-by-step explanation:

1. Multiply the area by two (2). That is your answer.

Hope this works out for you!! :)

multiple area by 2 is all you gotta do so you get 40(symbol)

- 4^2 + 3^2 ÷ 3

Show all work pls need help

Answers

Answer:

- 13

Step-by-step explanation:

PEMDAS:

P: Parentheses

E: Exponents

M: Multiplication

D: Division

A: Addition

S: Subtractions

Step 1:

- 4² + 3² ÷ 3       Equation

Step 2:

- 16 + 9 ÷ 3    Exponents

Step 3:

- 16 + 3     Divide

Answer:

- 13    Add

Hope This Helps :)

Answer is -13 because it’s right I think

Another Question help these are due soon!!!!!!

Another Question help these are due soon!!!!!!
Another Question help these are due soon!!!!!!
Another Question help these are due soon!!!!!!

Answers

1. The slope is 3/1 (3)

2. 1/3

3. Decimal of 3/1 is 3.0

4. Decimal of 1/3 is .33

5. C

~theLocoCoco

-5x+4=-2x+16 whats the anweser

Answers

Answer: x=4

Step-by-step explanation:

Answer:

x= -4

Step-by-step explanation:

don't forget to follow rate like

In the class election, the student who gets the highest number of votes will become the class president and the one who gets the second highest number of votes will become the class vice president. Tabitha and four other students were candidates. Tabitha’s teacher announces the election results as percentages of the total number of votes. Two hundred votes were cast in the election. In this activity, you will relate the percentages of the votes received to the actual numbers.

Question 1
The table gives the percentage of votes each candidate received. Use the information in the table to understand the results of the election.

Candidate Percentage of Votes
Tabitha 30%
Vincent 12%
Esmeralda 22%
Nancy 5%
Tyler 31%

Answers

Answer: Tyler for first and Tabitha for second

Step-by-step explanation: if you have 100% then the percentage would just be itself to 30% would be 30 and 12% would be 12 and 22% would be 22 and 5% would be 5 and 31% would be 31 so the Class president would be Tyler and the vice president would be Tabatha

Tabitha should be president and Tyler for vice president

Use long division to determine the decimal equivalent of - 5 over 9 . Round your answer to the nearest hundredth if needed.

Answers

Answer:

-0.5

Step-by-step explanation:

-0.5 is the correct answer !

WILL MARK BRAINIEST FOR FIRST ONE WITH ANSWER!
1. Come up with a statistical study where a measurement error is likely.

Describe the example.
Give at least one reason why the error is likely.
Determine a better method of measurement for the study.

2. Come up with a statistical study where the units of measure used were not appropriate for the situation.

Describe the example.
Explain why it was not appropriate.
Determine a more appropriate unit of measure for the study.

Answers

Answer:

1.Quantifying measurement error

2.Measurement Error (also called Observational Error) is the difference between a measured quantity and its true value. It includes random error (naturally occurring errors that are to be expected with any experiment) and systematic error (caused by a mis-calibrated instrument that affects all measurements)

3.statical unit

Step-by-step explanation:

Which product is negative? will mark brainliest

Which product is negative? will mark brainliest

Answers

The third one. I’ve shown my work below. The first two are positive and the last one is 0, which is neither positive nor negative
Which product is negative? will mark brainliest
I know someone else responded but theres an easier way to solve this without multiplying anything.
Neg*neg=pos
1. Has two neg and two negs make a pos
2. Has 4 neg which will also make pos
3. Has 3 neg. The first 2 will cancel out and make a pos but the last one will make the answer neg
4. Would just be 0 because its multiplying 0 but without it it would be neg.
So the answer is the third one

PLEASE HELP I DO NOT KNOW WHAT THIS IS

PLEASE HELP I DO NOT KNOW WHAT THIS IS

Answers

30$ is the answer to your question

Answer:

32 is the answer!!

marknem brainliest

Which is the output for the following linear function when the input is
-7?
y-x=2y+1
Options:
6
12
-13
8

Answers

Answer:

A) 6

Step-by-step explanation:

\(y-x=2y+1\\y-(-7)=2y+1\\y+7=2y+1\\7=y+1\\6=y\)

The output is y=6 when the input is x=-7

y-(-7)=2y+1
y+7-1=2y
6=2y-y
y=6

Sarah is walking hope from school. She decides to buy a candy bar and a soda from the convenience store. The soda costs 2.39 and the candy bar costs 1.69. What was the total cost of her snacks?

(I made this question up for fun so u dont have to answere it)

Answers

Answer:

$4.08

Step-by-step explanation:

Answer:

I think... $4.08 maybe... I may be wrong lol actually that's it..

Sarah is walking hope from school. She decides to buy a candy bar and a soda from the convenience store.

What's the answer because i'm so confused

What's the answer because i'm so confused

Answers

Answer:30 I think

Step-by-step explanation:

6 is 37.5% of 16 so 37.5% of 80 is 30

The answer is that he saved $30 because 16 x 5 =80 so 6x5= 30
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