Please answer this! I have no idea!

Answers

Answer 1

Answer: the domain is all real numbers bc the domain is all x values and the lines continue going left and right and do not stop

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An amusement park has 11 roller coasters. In how many ways can you choose 4 of the roller coasters to ride during your visit to the park?

Answers

4!=4*3*2*1=24
11!=11*10*9*8*7*6*5*4*3*2*1=39916800
7!=7*6*5*4*3*2*1=5040
n choose k
how many ways are there to choose k rollercoasters from n choices?

$\left(\begin{array}{ccc}n\nk\end{array}\right)$ = $(n!)/(k!(n-k)!)$

$\left(\begin{array}{ccc}11\n4\end{array}\right)$ = $(11!)/(4!(11-4)!)$ = $(39916800)/(24(7)!)$ = $(39916800)/(24(5040))$ = $(39916800)/(120960)$ =330

330 ways

How do you solve for sinxcos2x+cosxsin2x=0 ?

Answers

LHS is nothing but (using sin (a+b) = sin a cos b + cos a sin b)

sin (x+2x) = sin 3x = 0

so 3x = npi
or
x = npi/3

The answer is x = n p i divided by 3

Jake went on a road trip with his family this summer. On Monday, they drove 629 miles. Tuesday, they drove 215 miles. On Wednesday, they only drove 111 miles. And, on Thursday, they drove 588 miles. What is the total number of miles that Jake's family traveled?

Answers

Answer:

1543 miles

Step-by-step explanation:

629 + 215 + 111 + 588 = 1543

Ariana spent a quarter of her allowance on sweets and she put one third of the remainder in her piggy bank. If she had twenty dollars left, what was her allowance

Answers

Answer:

$40

Step-by-step explanation:

Ariana spent a quarter of her allowance

1 - 1/4 = 3/4 was left

put one third of the remainder in her piggy bank

1/3 * 3/4 = 1/4

She spent 1/4 and piggy banked 1/4

so the $20 she had left was half her allowance.

allowance was $40

Ariana gets a very large allowance!

What is 39 squared? A. 39 B. 1,482 C. 1,521 D. 78

Answers

Hey There!

The answer to you're question is C, because squared means to the power of two. So, 39 * 39 is 1,521.

Have A Brainly Day!

Squaring 39 means multiplying it by itself which amounts to C. 1,521

What is required when asked to square?

Squaring a number means multiplying it by itself. So, 39 squared is 39 multiplied by 39. This is equal to 1,521.

Here is the calculation:

39 × 39 = 1,521

Quite often, people confuse squaring with finding the square root of a number.

Taking the square root of a number means finding a number that, when multiplied by itself, equals the original number. For example, the square root of 25 is 5 because 5 × 5 = 25.

Find more exercises on squaring;

brainly.com/question/14198272

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PLEASE HURRY 3/14 < x < 3/13
0.203
0.213
0.223
0.233

Answers

Answer:

It's C. 0.223

Step-by-step explanation:

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