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4 years ago

Which one of these pictures is not like the other? Explain what makes it different using ratios.

Mathematics

1 answer:

KonstantinChe [14]4 years ago

4 0

Answer:

2 and 3

Step-by-step explanation:

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2v^2-12 =-12v <br> Would really appreciate it loves❤️

Black_prince [1.1K]

For this case we have the following equation:

$2v ^ 2-12 = -12v$

Rewriting we have:

$2v ^ 2 + 12v-12 = 0$

Dividing by 2 to both sides of the equation:

$v ^ 2 + 6v-6 = 0$

We apply the quadratic formula:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

We have to:

$a = 1\\b = 6\\c = -6$

Substituting:

$x = \frac {-6 \pm \sqrt {6 ^ 2-4 (1) (- 6)}} {2 (1)}\\x = \frac {-6 \pm \sqrt {36 + 24}} {2}\\x = \frac {-6 \pm \sqrt {60}} {2}\\x = \frac {-6 \pm \sqrt {4 * 15}} {2}\\x = \frac {-6 \pm2 \sqrt {15}} {2}$

Thus, we have two roots:

$x_ {1} = - 3+ \sqrt {15}\\x_ {2} = - 3- \sqrt {15}$

ANswer:

$x_ {1} = - 3+ \sqrt {15}\\x_ {2} = - 3- \sqrt {15}$

7 0

3 years ago

I’ll give brainliest please help

Angelina_Jolie [31]

Answer:

130

Step-by-step explanation:

91 is 70 percent of the price

70% of 130 is 130*0.7 = 91

5 0

3 years ago

What is the percentage of 100

tigry1 [53]

100%
hope that helps! :)

4 0

3 years ago

What’s the answer to this?

kaheart [24]

Answer:

100

Step-by-step explanation:

5 0

3 years ago

The sum of two numbers is 72. The greater number is 8 more than the smaller number. Which equation can be used to solve for the

densk [106]

$x + (x + 8)$

7 0

3 years ago

Read 2 more answers