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Paha777 [63]
3 years ago
13

Evaluate the given algebraic expressions replacing x with −2 and y with 1. 3x2

Mathematics
1 answer:
Rom4ik [11]3 years ago
3 0

Answer:

No solutions

Step-by-step explanation:

3x^2=y

3(-2)^2=1

Follow P.E.M.D.A.S.

3(4)=1

12=1

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D

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C. 6 triangles once again

D. everything matches

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How much did I spend on my 12$ meal with 5% tax and a 15% tip left after
garik1379 [7]

Answer:

$14.49

Step-by-step explanation:

Since the question asked you how much you spent on the meal including the 5% tax and the 15% tip after the tax, it's basically asking you to calculate the percentage of the meal and subtracting it by the amount.

7 0
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Evaluate the following.
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5

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3 years ago
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Instructions: Find the missing side. Round your answer to the nearest tenth.<br> 54°<br> 29
Gemiola [76]

Answer:

x = 23.5

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

sin theta = opp / hyp

sin 54 = x / 29

29 sin 54 = x

x=23.46149

To the nearest tenth

x = 23.5

6 0
3 years ago
Which of the points listed below is not on the line with equation 7y+2=3x-5
kicyunya [14]

Answer: Second option.

Step-by-step explanation:

Given the folllowing Linear Equation:

7y+2=3x-5

You need to substitute the coordinates of each point given in the options into the equation and then evaluate.

1) Substituting  (2, -\frac{1}{7}) into the equation, you get:

7(-\frac{1}{7})+2=3(2)-5\\\\-1+2=6-5\\\\1=1\ (TRUE)

2) Substituting the point (3, -\frac{3}{7}). you get:

7(-\frac{3}{7})+2=3(3)-5\\\\-3+2=9-5\\\\-1=4\ (FALSE)

3) Apply the same procedure using the point (1, -\frac{4}{7}):

 7(-\frac{4}{7})+2=3(1)-5\\\\-4+2=3-5\\\\-2=-2\ (TRUE)

4)  Apply the same procedure using the point (-1, -\frac{10}{7})

 7(-\frac{10}{7})+2=3(-1)-5\\\\-10+2=-3-5\\\\-8=-8\ (TRUE)

5) Substituting  (0,-1) into the equation:

 7(-1)+2=3(0)-5\\\\-7+2=-0-5\\\\-5=-5\ (TRUE)

Therefore, the point (3, -\frac{3}{7})  is not on the given line.

8 0
3 years ago
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