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4vir4ik [10]
2 years ago
12

What does included and non included mean on a number line

Mathematics
1 answer:
murzikaleks [220]2 years ago
5 0

Answer:

Step-by-step explanation:

Simply put, "a IS INCLUDED in set X" means that a is in set X. "a IS NOT INCLUDED in set X" means that a is not in the set

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when asked to write a point slope equation for a line passing through the points (-3,-5) and (2,4) a student wrote y-4=-9/5(x-2)
Eduardwww [97]
(-3,-5)(2,4)
slope(m) = (4 - (-5) / (2 - (-3) = (4 + 5) / (2 + 3) = 9/5

y - y1 = m(x - x1)
slope(m) = 9/5
(2,4)...x1 = 2 and y1 = 4
sub
y - 4 = 9/5(x - 1)....this is the correct answer

the student figured the slope wrong....it is 9/5...not -9/5
5 0
3 years ago
What is 826,783 rounded to the nearest ten thousand
Colt1911 [192]

Answer:

826,783

82*6* (we go up)

826,783 is rounded to 830,000

Step-by-step explanation:

4 0
3 years ago
What is equivalent to (3^6/y^-5)^2
Fantom [35]
I believe that the answer is 1/5. I hope that this answer helps!<span />
3 0
3 years ago
Three vectors A, B, C in three-dimensional space satisfy the following properties
wlad13 [49]

Answer:

\frac{7}{8}\pi

Step-by-step explanation:

observe

||a–b+c|| = ||a+b+c||

(a-b+c)² = (a+b+c)²

(a+b+c)² – (a-b+c)² = 0

((a+b+c)+(a-b+c))((a+b+c)–(a-b+c)) = 0

(2a+2c)(2b) = 0

(a+c)b = 0

a•b + c•b = 0

||a||×||b||×cos(π/8) + ||c||×||b||×cos(θ) = 0

\cos(\theta)=-\frac{||a||\times ||b|| \times \cos(\frac{\pi}{8})}{||c||\times ||b||}=-\cos(\frac{\pi}{8})\\ \theta=\frac{7}{8}\pi

3 0
3 years ago
The school that Kathryn goes to is selling tickets to the annual talent show. On the first day of ticket sales the school sold 1
Kobotan [32]

Answer:

Step-by-step explanation:

a+s=14

a=14-s

a+8s=56, using a from above in this equation gives

14-s+8s=56

14+7s=56

7s=42

s=6

a=14-s

a=14-6=8

So student tickets cost $6 and adult tickets cost $8.

5 0
2 years ago
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