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katovenus [111]
3 years ago
8

The ordered pair (-2, 12) is a solution of the inequality y > -5x + 2. True False

Mathematics
2 answers:
mel-nik [20]3 years ago
4 0
The answer should be True!

Hope it helped you.


-Charlie

:)
klasskru [66]3 years ago
4 0
Yikes I would say false.  but I'm not the smartest so.
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In the solution, 3b + 9c = 3(b + 3). What should be done to make it CORRECT?
stiks02 [169]

Answer:

The second term of the binomial factor should be 3c instead of 3.

Step-by-step explanation:

Distributive property:

a*b + a*c = a*(b +c)

3b + 9c = 3*b + 3* 3 *c = 3*(b + 3c)

7 0
3 years ago
Directions: Simplify these problems by combining like terms.
Verdich [7]

Answer:

6s + 2s - 3s - 6:

5s-6

10t - 4t -6 + 5t:

11t-6

18r + 18r + 9r - 3r:

42r

20 - 4q + 40r - 16:

-4q+40r+4

17st - 16s + t:

17st-16s+t

. 101+101x - x:

101+100x

16a2 - 14a + a2 - 3a:

14 ato the power of 2- 17a

14t + 14t + t:

29t

r + s + rs + s + rs + s:

r+2rs+3s

54 pt - 3p + 4t - 3pt:

51pt-3p+4t

i dont know 11

101c - 5c +4c:

100c

12q - 4 + 10q - 4q +9:

18q+5

21k - 20k + 3k:

4k

181x + 91x - 23x:

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Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
At an art exhibition there are 12 paintings of which 10 are original. A visitor selects a painting at random and before decides
Reika [66]

Answer:

a) 0.8333

b) 0.75

c) 0.8181 or 0.9090

Step-by-step explanation:

a)

The probability the visitor selects an authentic painting is  

10/12 = 0.8333

b)

Since the opinion of the expert does not depend on your choice, the events are <em>independent</em>, so the probability that the expert says is authentic and it really is, is

0.8333*0.9 = 0.75

c)

If the expert decides the painting is a copy and it is not, then there are 11 paintings of which 9 are authentic, so the probability the visitor selects a new original painting is

9/11= 0.8181

If the expert decides the painting is a copy and it is, then there are 11 paintings of which 10 are authentic, so the probability the visitor selects a new original painting is

10/11= 0.9090

8 0
3 years ago
Write z=1-3i in exponential form ​
Sladkaya [172]

Answer:

z=re ^iθ =2e ^i 3/π

​

Step-by-step explanation:

hope this helps

7 0
3 years ago
3. Which relation is a function?
Pani-rosa [81]

Answer:

B

Step-by-step explanation:

Recall that functions are defined only if for each value in the domain produces one and only one value in the range.

If we view the relations in the questions as x-y coordinates, this means that for every x-value, you can only have one y-value

Lets evaluate the options:

A) we can see that for x = -3, this gives 2 possible values for y i.e (-3,4) and (-3,8) (hence this is not a function)

C) we can see that for x = 3, this gives 2 possible values for y i.e (3,-8) and (3,8) (hence this is not a function)

D) we can see that for x = -3, this gives 2 possible values for y i.e (-3,4) and (-3,8) (hence this is not a function)

the only choice where this doesn't occur is choice B

6 0
3 years ago
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