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Alexus [3.1K]
4 years ago
7

What is the smallest solution to the equation 2x^2+17=179

Mathematics
1 answer:
Jobisdone [24]4 years ago
3 0
The goal is to put the equation in the simplest form to solve:
2x²+17=179

Subtract both sides by 17.
179-17= 162
2x²=162

Square root 162.
√162 = 12.7 (rounded)
2x=12.7

Divide both sides by 2.
12.7/2= 6.4 (rounded)
x=6.4

The variable x is 6.4, rounded to the nearest tenth for simple purposes.

Hope this was helpful.
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The equation below model the numbers of two portable music players (y) and days after both players were introduced (x).
soldier1979 [14.2K]

Answer:

a. On the 13th day

b. 2,451 players we’re sold on that day

Step-by-step explanation:

a. The day in which the company sold the same number of players can be calculated by equating the values of y that we have ;

y = 191x-32 and y = -x^2 + 200x + 20

Equating both, we have;

191x-32 = -x^2 + 200x + 20

x^2 -200x + 191x-20-32 = 0

x^2-9x-52 = 0

x^2-13x + 4x -52 = 0

x(x-13)+4(x-13) = 0

(x-13)(x+4) = 0

x = 13 or -4

as days cannot be negative we choose only x = 13

This means the company sold equal numbers of players on the 13th day

b. To get the number of players sold on that day, we choose any of the y equation and substitute x = 13

Thus, we have for y = 191x -32; 191(13) - 32 = 2,451 players

4 0
3 years ago
Point A bisects LS BC. If LS BA=6x-3 and LS AC= 3x+7. Solve for X. PLS ANSWER QUICKLY!!!
denis23 [38]

Based on the bisection of line BC by point A, the value of x is 10/3

<h3>How to determine the value of x?</h3>

The given parameters are:

  • Point A bisects BC
  • BA = 6x - 3
  • AC= 3x + 7

Because the point A bisects BC, then

BA = AC

Substitute the known values in the above equation

So, we have

6x - 3 = 3x + 7

Collect the like terms

6x - 3x = 3 + 7

Evaluate the like terms

3x = 10

Divide both sides of the equation by 3

x = 10/3

Hence, based on the bisection of line BC by point A, the value of x is 10/3

Read more about bisectors at:

brainly.com/question/6725549

#SPJ1

8 0
2 years ago
What is the best estimated of the total number of students that attended clubs on Friday
s2008m [1.1K]

All you would have to do is round to the nearest 10th number (ex. From 26 to 30) for all the clubs including both boys and girls. Then you add them all together. Rounding makes estimating easier.

8 0
3 years ago
3x - 4y when x = 3 and y=2<br> Help pls and thank you
Maurinko [17]

Answer:

substitute the unknown with the values given ie

3(3) - 4 (2)

you get 9-8

= 1

5 0
3 years ago
224 is what % of 640?
Lena [83]
<span>35%
<span><span><span><span><span>
To compare two whole numbers to find a percent, divide the first number by the second number:

224/640 = 0.35.

Multiply the dividend by 100 to get a percent.

0.35 x 100 = 35%.</span></span></span></span></span></span>
3 0
3 years ago
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