Which is a simplified form of the expression -4(n + 1) – (n + 2)?
A. 2n + 3
B. -3n – 2
C. -4n – 5
D. -5n – 6
2.Which is a simplified form of the expression 3a + 7 – a – 7?
A. 2a
B. 4a
C. 2a + 14
D. 4a – 14
3.Which is a simplified form of the expression -2(x – 9) – x?
A. -3x + 18
B. 3x – 18
C. x – 9
D. x + 18
4.Which is a simplified form of the expression -5(y – 2) – 7y?
A. –12y + 10
B. 2y – 10
C. -2y + 10
D. 12y – 10
5.
Which is a simplified form of the expression -3x – 1 – 5x + 4?
A. -2x + 3
B. 2x – 5
C. 8x – 5
D. -8x + 3
6.
Which is a simplified form of the expression -7y – (2y + 4)?
A. -9y + 4
B. -9y – 4
C. -5y – 4
D. -5y + 4
7.Which is a simplified form of the expression 6(2t – 3) + 3(t + 5)?
A. 11t – 2
B. 12t – 8
C. 9t – 2
D. 15t – 3
8.Which is a simplified form of the expression -4(3r – 2) – 2(r + 1)?
A. 4r – 1
B. 10r – 7
C. -14r + 6
D. -12r – 1
9.
Which is a simplified form of the expression -6a + 2(2a + 2)?
A. -2a + 4
B. -2a – 4
C. 2a + 4
D. 2a – 4
10.Which is a simplified form of the expression -3p – 4 + 4p + 8?
A. -p – 4
B. 2p – 4
C. p + 4
D. 7p + 4
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Answer:
The guy below is correct!
Answer: x < -2
Step-by-step explanation:
Divide -x by 2, and you get -2 making -x turn into a positive x, and since the answer is negative, the inequality flips from right > to left. <
It is a CLOSED circle going left.
Hope this helps :)
Well, for the first one, you count all the values that fit into the certain range. For example if I were to try and find the first one (10-19) I would count up all the numbers from 10 to 19. There are 4 (17, 10, 16, 19). Okay, for the second one (20-29). There are 6 (22, 20, 22, 20, 24, 20). On to the third (30-39). There are 5 (37, 34, 32, 33, 34). Now for the fourth one (40-49). There are 4 (49, 48, 40, 46) Now for the fifth one (50-59). There are 4 (56, 50, 51, 58). Now for the sixth (last) one. There are 2 (61, 60). With this info, the answer is the first choice.
I honestly do not remember ever doing box-and-whisker plots, so I cannot help you there. Sorry.
Cannot help with questions 12 and 13 or 15 either, I have never seen this.
Now, for number 16, you would just divide 900 by 15 and you would get 60. So, she would have to mow 60 lawns.
A proportion is a set of numbers that are equal to each other. The only choice is 5/1000 and 10/2000. You can multiply 5/1000 by 2 and get 10/2000, or you can divide 10/2000 to get 5/1000.
Sorry I couldn't answer some of your questions, but I hope this helps! Sorry again.
Answer:
D
Step-by-step explanation:
We need the formula for arc length (in radians) to solve this problem. The formula is:
Where
s is the arc length
r is the radius of the circle
is the intercepted angle
In this diagram, we can see that is beign intercepted by the big arc with measure 20 cm. So arc length, s, is 20
Also, if we look, we see that the radius is 5 cm, so r = 5
Now, we substitute into formula and find :
This is given in radians, so is 4 radians
D is the correct answer choice.
First off, sin 2 theta = 2 sin theta cos theta. Also, the answer to your question is no. There are multiple double angle formulas, and it is important that you remember them so that you can answer questions correctly.