Mathematics High School

(sinα+cosα)^2−(sinα−cosα)^2​

Answers

Answer 1

Answer:

Error

Step-by-step explanation:

The answer is Error u might want to ask ur teacher

Related Questions

Please help I give brainliest

Answers

Answer:

Questions:

#1) one complex solution

#2) two solutions

#3) one complex solution

#4) one solution

Step-by-step explanation:

1) x² = -100;      x = 10i

2) 5x² = 1;         x = ±[tex]\sqrt{1/5}[/tex]

3) 6x² + 6 = 0;    x = i²

4) 7(x² + 6) - 42 = 0;    x = 0


Which of the following are identities? ^

Answers

I think it’s A.I’m sorry not that sure

for brainiest:):):):):):):):)

Answers

1- is $52.50 2- $6.30

Answer:

1. $22.50 2. $11.70

Step-by-step explanation:

Cause 30% of 75 is 22.5 and 65% of 18 is 11.7

The scale of map is 1cm : 70km. What is the actual distance between towns that are 5cm apart on the map

Answers

Answer: 350km

Step-by-step explanation:

Since we are informed that the scale of map is 1cm : 70km. Therefore, the actual distance between towns that are 5cm apart on the map will be:

= 5 × 70km

= 350km

Therefore, the answer is 350km

Anyone know the song you broke me first?

Answers

I do lol it’s a good song :)))

Answer:

Yes its very sad (the words)

Step-by-step explanation:

Not going to lie but it does kind of sound like camila cabeo sang it.

I really like the tune and the singing too

Please help will give brainliest

Answers

Answer:

C. 120

Step-by-step explanation:

B × H

(base) × (height)

15 × 8 = 120

Answer:

120

Step-by-step explanation:

Parallelogram= length times width so

15*8=120

A rectangular region is removed from another rectangular region to create the shaded region shown below. Find the area of the shaded region.
8 Ft
11 ft
6 ft
9 ft

Answers

The answer should be 11feet

If a persons monthly income consists of $550 plus a commision of 4% on all his sales. Find his total income for a month where he sold items for $590

Answers

Answer:

$613.6

Step-by-step explanation:

Given data

Monthly income = $550

Plus commision =4% of sales

Sale for the month= $590

Let us find the commission earned

4/100*590

=0.04*590

=$23.6

Hence the net income for that month is

=23.6 +590

= $613.6

please help , thank you!

Answers

Answer:

1/1

Step-by-step explanation:

x1 subtracted by x2

in this case 3-2=1

Then y1 subtracted by y2

5-4=1

y will be put over x in fraction form

Answer:1/1

Answer:

mark her as brainliest

Step-by-step explanation:

Fill in the blank. Two chords that are the same distance from the center of a circle must be
A. perpendicular
B. parallel
C. radii
D. congruent​

Answers

Answer:congruent

Step-by-step explanation:

PLEASE HELPPP!!!
Explain your thinking!!
don’t answer just for points or i’ll report you.

Answers

Answer:

Negative

Step-by-step explanation:

On the line, we see that a = 0.5 and b is after -1. a + b will be negative because anything after -1 added to .5 will be negative.

Example:

-1 + .5 = -.5

-2 + .5 = -1.5

-3 + .5 = -2.5

Answer: Negative

Step-by-step explanation: the b we can see is far away from  -1 that means its around - 2 and if we were to add 0.5 and - 2 we would get -1.5

I need so much help with these could you help me?

Answers

Answer:

Step-by-step explanation:

In ΔBCA and ΔDCA,

BC ≅ CD                 Given

∠BCA ≅∠DCA        Given

AC ≅ AC                    Reflexive property

ΔBCA ≅ ΔDCA          S A S congruent

∵ BA ≅ AD                CPCT {Corresponding part of congruent triangle}

If Debbie starts a retirement account with $100 that has an annual rate of return of 8%, how long (in years) would it take for her to
have at least $100,000 if interest is compounded continuously?
A) 1 year
B) 8 years
C) 87 years
D) 90 years

Answers

Answer:

C.) 87 years

Step-by-step explanation:

I've taken the test! Hope this helps! ;)

The number of years for her to have at least $100,000 if interest is compounded continuously is 90

How to determine the number of years?

The given parameters are:

Amount, A = 100,000

Principal, P = 100

Rate, r = 8%

Amount is calculated using:

A = P * (1 + r)^t

So, we have:

100000 = 100 * (1 + 8%)^t

Divide by 100

1000 = (1 + 8%)^t

Evaluate the sum

1000 = 1.08^t

Take the logarithm of both sides

log(1000) = log(1.08)^t

Apply the law of logarithm

log(1000) = tlog(1.08)

Solve for t

t = log(1000)/log(1.08)

Divide

t = 89.7

Approximate

t = 90

Hence, the number of years is 90

Read more about compound interest at:

https://brainly.com/question/2455673

how much money would billy have to borrow from a bank in order to purchase his car today?

Answers

He would have to borrow $18,000. And I think a bank would be willing to do that because of loans

25 points for help! i will mark you brainiest too!

Answers

the answer is D! because area= width*length!

Plss help

Which number line shows the solution to 1x +1<5?

Answers

Answer:

second

Step-by-step explanation:

x +1<5

x<5-1

x<1<4

12% of 72 is what number?

Answers

Answer:

8.64

Step-by-step explanation:

12% = 0.12

72(0.12) = 8.64

Factor each expression completely.
5x^2 + 10x

SHOW YOUR WORK!!!

Answers

5x^2+10x

factorise 5 and 10 first
then factorise the x

so 5x(x+2)
completed :))

hope this helped :)

help m.e please please

Answers

Answer:

(0, 2)

Step-by-step explanation:

Both the lines are intersecting each other at point (0, 2)

So, the solution to the system of equations would be (0, 2)

Hope it helps you in your learning process

Answer:

I think its (0,2) :)

Step-by-step explanation:

How do you find the value of x in the triangle?

Answers

To find the value of x in a triangle, you need to subtract the sum of the two angles from 180 degrees. Know that the sum of all the angles of a triangle will always equals 180 degrees. Then write down the difference of subtracting the sum of the two angles from 180 degrees and that would equal the value of x.

I hope this helped in some way, if it didn't, im so sorry.

Which choice shows the corresponding size as equal?

Answers

Answer: B

Step-by-step explanation: i don't really know but it looks correct

find the value of x
2x−3=5

Answers

Answer:

x=4

Step-by-step explanation:

5+3 =8

8/2 = 4

factor 4 in...

(2x4)-3=8

Answer:

X=4

Step-by-step explanation:

Teresa received $80 for her birthday. At what rate would she have to invest to have $90 at the end of the year

Answers

Saving I don’t know but please let me know :)

pweassss e help meee◑__◐

Answers

Answer: C

Step-by-step explanation:

divide 342 by 7 and round to the nearest whole number

a class sold tickets to their school play. each of the 23 students in the class sold 4 tickets. the cost of each ticket was 7$

Answers

Answer:

would it be $644

Step-by-step explanation:

because if you multiply 24 x 3 that gives you 99 and then multiply 99 by $7 that gives you 644. i could be wrong but i dont know :3

Answer:

$644

Step-by-step explanation:

Step 1)

First we do 23 x 4 to find the total tickets sold and we get 92 tickets sold altogether

Step 2)

Then we do 92 x $7

FINAL ANSWER)

$644

The probability of being assigned a locker next to a classroom door is 11%. What is the probability of not getting a locker next to a classroom door.​

Answers

Answer:

0.7921%

Step-by-step explanation:

89/100×89/100

Question 1 of 2 Fill in the blanks. y? – 4 y – 2 If y = -6, what is the value of ?​

Answers

PLEASE ANSWER BOTH AS FAST AS POSSIBLE PLEASE HELP HELP ILL MARK BRAINLEST!!!!! PLEASE ANSWER BOTH AS FAST AS POSSIBLE PLEASE HELP HELP ILL MARK BRAINLEST!!!!! PLEASE ANSWER BOTH AS FAST AS POSSIBLE PLEASE HELP HELP ILL MARK BRAINLEST!!!!! PLEASE ANSWER BOTH AS FAST AS POSSIBLE PLEASE HELP HELP ILL MARK BRAINLEST!!!!! PLEASE ANSWER BOTH AS FAST AS POSSIBLE PLEASE HELP HELP ILL MARK BRAINLEST!!!!!

equivalent expression 7s+8t+10s+12t

Answers

Answer:

17s+20t

Step-by-step explanation:

If m∠RQS=22x-11 and m∠RQT=12x-8, find m∠TQS

Answers

Answer:

∡TQS = 10x -3

Step-by-step explanation:

∡TQS = ∡RQS - ∡RQT

= 22x - 11 - (12x - 8)

= 10x -3

Need help in this ASAP

Answers

Answer:

The m∠YXW is 125°.

Addition equation: m∠YXW = m∠YXZ + m∠ZXW = 85° + 40° = 125°

Step-by-step explanation:

To find the m∠YXW you would need to add the m∠YXZ and m∠ZXW together:

m∠YXW = m∠YXZ + m∠ZXW = 85° + 40° = 125°

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