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Snezhnost [94]
3 years ago
15

Fill in the blank for the following two-column proof. Given: 3x+1=-14 Prove: x=-5

Mathematics
2 answers:
VladimirAG [237]3 years ago
5 0

Answer:

x does equal -5

Step-by-step explanation:

Add -1 to each side.

1+-1+3x-14+-1

Combine the like terms.

0+3x=-14+-1

3x=-14+-1

3x=-15

Divide that by 3.

x= -5

Hope this helps. Plz give brainliest.

slega [8]3 years ago
3 0
<h3>3x + 1 = - 14</h3>

  • bring 1 over to the other side as it is alike to negative 14
  • when you bring 1 to the other side it turns into negative 1

<h3>3x = - 14 - 1</h3>

  • subtract negative 1 from negative 14

<h3>3x = - 15</h3>

  • bring 3 over to the other side and divide it by 15

<h3>x = - 15 ÷ 3</h3>

  • this is the answer ...

<h2>x = - 5</h2>

hope that helps :)

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Answer:

A. 46.1 ft

Step-by-step explanation:

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<u>Refer to the attached image for clarity.</u>

To solve this, we will use the Sine Rule.


To apply this, we need to know two angles that correspond to the side of the triangle opposite of them, and the length of those to sides.

<h3><u>Finding the unknown angle</u></h3>

The sum of a triangle is 180 degree, and we can subtract the value of the known two angles from this to obtain the value of the unknown angle (A)

180 - 35 - 50 = 95 degree

<h3><u>Apply Sine Rule</u></h3>

To solve for the distance between Eric and the Object, we will apply this as follows:

Sine A / a = Sine C / c

<em>Note: We are using the angle C because the corresponding angle directly opposite is the side of the triangle we need to find</em>

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8 0
3 years ago
Suppose the following regression equation was generated from the sample data of 50 cities relating number of cigarette packs sol
frez [133]

Answer:

A) According to the regression equation, regardless of whether or not smoking is allowed in bars, the number of cigarette packs sold per 1000 people decreases by approximately 1424 for each additional dollar of cigarette tax.

Step-by-step explanation:

Given the regression equation:

PACKS i= 57221.431732 − 1423.696906TAXi + 155.441784BARSi + eᵢ.

BARS i= 1 if city i allows smoking in bars

BARSi = 0 if city i does not allow smoking in bars

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Simnce p value, 0.0865 is greater than level of significance, 0.05, BARS is not significant. Thus, allowing smoking in bars increase cigarette sales, since the coefficient of BARS is positive.

Correct answer is option A.

According to the regression equation, regardless of whether or not smoking is allowed in bars, the number of cigarette packs sold per 1000 people decreases by approximately 1424 for each additional dollar of cigarette tax.

4 0
3 years ago
Help please. I'll give brainliest and 5 stars
kicyunya [14]

Answer:

AB=CB

Step-by-step explanation:

These have congruent side markings.

7 0
3 years ago
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musickatia [10]
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3 years ago
I have been stuck on this forever plz help <br> What is the surface area of this cylinder
Andrei [34K]

Answer:

1865.16 m^2

Step-by-step explanation:

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3 years ago
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