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dolphi86 [110]
3 years ago
5

I really need help pleasee!!

Mathematics
1 answer:
Veronika [31]3 years ago
7 0
The answer is -1 because using the trick rise/run from one point to the next proves it
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hi:) for 5(b) , I got 157.7 & 22.3 but in the answer key, the only correct answer is 157.7. I thought there should be 2 poss
n200080 [17]

Answer:

Θ = 157.7°

Step-by-step explanation:

Given

cosΘ = - 0.925

Since cosΘ < 0 then Θ is in the second or third quadrant.

Since 0° ≤ Θ ≤ 180° then Θ is in the second quadrant. thus

Θ = cos^{-1}(- 0.925) = 157.7° ← angle in second quadrant

8 0
3 years ago
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50 POINTS! QUICKLY Are the pairs of variables x and y the solutions to the equation x^2–2y=7?
Fittoniya [83]

Hi there!

\large\boxed{(5,8) \text{ and } (1.2, -2.78)}}

We are given the equation:

x² - 2y = 7

To verify if each ordered pair is apart of the function, we can plug in their respective x and y values:

1. (5)² - 2(8) = 7

25 - 16 = 9 ≠ 7. This is NOT correct.

2. (-1)² - 2(-3) = 7

1 + 6 = 7. This is correct.

3. (-4)² - 2(-11.5) = 7

16 + 23 = 39 ≠ 7. This is NOT correct.

4. (1.2)² - 2(-2.78) = 7

1.44 +5.56 = 7. This is correct.

Thus, only 1 and 4 are the correct answers.

5 0
2 years ago
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Which of the binomials below is a factor or this trinomial x-2 +5x+6
lutik1710 [3]
Firstly, for it to be a trinomial the expression would have to be x^2+5x+6 to factor this we would simply have to find 2 numbers that add up to 5 and multiply to 6. 3+2=5 and 3•2=6 so (x+3)(x+2) would be the answer
5 0
3 years ago
Which ratio is not equivalent to 3:4 ?
lions [1.4K]

Answer:

36 minutes

Step-by-step explanation:

10blocks in 6mins

20blocks in 12mins

30blocks in 18mins

40blocks in 24mins

50blocks in 30mins

60blocks in 36mins

4 0
3 years ago
A teacher asked his students to vote for an animal to be their class pet. Five-eighteenths of the students voted for a rabbit, O
ololo11 [35]

Answer:

<em>Since you didn't list the statements, I'll just list some true statements.</em>

-------------------------------------

There are 17 students in this class.

Majority of students voted for a hamster.

Snake was the least voted for.

5 0
3 years ago
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