Remove all grouping symbols and combine like terms.( 3x + x ^2) - { 4x^2 - 3x +[ 2x^2 - x - (5x^2 + 4x)]}
Thank you

Answers

Answer 1

Answer: $(3x+x^2)-\{4x^2-3x+[2x^2-x-(5x^2+4x)]\}\n\n=3x+x^2-\{4x^2-3x+[2x^2-x-5x^2-4x]\}\n\n=3x+x^2-\{4x^2-3x+[-3x^2-5x]\}\n\n=3x+x^2-\{4x^2-3x-3x^2-5x\}\n\n=3x+x^2-\{x^2-8x\}\n\n=3x+x^2-x^2+8x\n\n=11x$

Answer 2

Answer: $( 3x + x ^2) - (4x^2 - 3x +(2x^2 - x - (5x^2 + 4x)))=\n 3x+x^2-4x^2+3x-(2x^2-x-5x^2-4x)=\n -3x^2+6x-2x^2+x+5x^2+4x=\n 11x$

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The potential energy, P, in a spring is represented using the formula P =1/2 kx2. Lupe uses an equivalent equation, which is solved for k, to determine the answers to her homework.Which equation should she use?

Answers

The answer to this question will be K=2PX^2

Answer:

the ∧ is a 2 square

Step-by-step explanation:

Can u please get help with this Question?

Answers

the answer is positive 0.25

Write and inequality for Toni can carry up to 18lb in her backpack.

Answers

X is less than or equal 18. I hope it helps

What could be predicted if Elisondra and her friends use the spinner to decide who orders first during 40 visits? Check all that apply. a. A different person will order first every time. b. Elisondra will order first approximately 10 times. c. Diya will order first exactly 20 times. d. The spinner will land on Elisondra’s section 40 times. e. Each person will order first approximately the same number of times.

Answers

Answer:

b. Elisondra will order first approximately 10 times.

e. Each person will order first approximately the same number of times.

Missing Problem Statement:

Elisondra is eating at a restaurant with three friends. They want to choose at random who will order first. If you model the situation with the spinner, how many equal-sized sections should the spinner have?

What is the theoretical probability of the spinner landing on Elisondra's section?

Step-by-step explanation:

Now, before we proceed to the current options in the problem statement. We need to model the situation with the spinner, how many equal sized sections should spinner have?

Since Elisondra is with her 3 friends, so we have a total of 4 people.

So the spinner should have 4 equal sized sections

Theoretical Probability of spinner landing on Elisondra's section = $(1)/(4)$

In the given statement:

Spinner is used to decide who orders first during 40 visits.

The options that apply are:

B) Elisondra will order first approximately 10 times. As:

Theoretical Probability of spinner landing on Elisondra's section in 1 spin = $(1)/(4)$

Theoretical Probability of spinner landing on Elisondra's section in 40 spins = $(40)/(4)$ =10 times

E) Each person will order first approximately the same number of times, as probability of any person ordering first is $(1)/(4)$ in 1 spin.

Option (A), (C) and (D) do not apply as it is not possible.

Answer:

B) Elisondra will order first approximately 10 times.

E) Each person will order first approximately the same number of times.

Those two answers will help you certainly ! =w=

Step-by-step explanation: just did it!

The solution to which inequality is shown?(Number line from negative 10 to 10 , tic marks at every integer , labels at negative 10 , negative 5 , 0 , 5 , 10 , open red circle on negative 4 , red shading to the left of the red circle.)
a. y + 3 ≥ –1
b. y + 3 > –1
c. y + 3 ≤ –1
d. y + 3 < –1

Answers

←←←←←←←←Ö
| | | | | | | | | | | | | | | | | | | | |
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10

This is how I understand the word problem.

Since the circle above -4 is an open circle, it means that y is not equal to -4.

Since the arrow is going to the left of -4, the numbers are all less than -4.

y < -4

Among the choices, D. y + 3 < -1 is the correct answer.

y + 3 < -1
-3 -3
y < -4

if a and b are the measures of two first quadrant angles and sin a = 4/5 and sin b = 5/13, find sin a+b.

Answers

given that sin a= 4/5
cos a= √(1-sin²a)
   = √(1-16/25)
   = √(9/25)
   = 3/5
sin b=5/13
cos b= √(1-sin²b)
   = √(1-25/169)
   = √(144/169)
   = 12/13

sin(a+b)= sin a· cos b + cos a · sin b
      = 4/5· 12/13 + 3/5· 5/13
      = 48/65+15/65
   = 63/65
hope it helps

Answer:

[A] sin(a + b) = $(63)/(65)$