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2 years ago

PLS PLS HELP I WILL MARK BRAINLIEST!

Mathematics

1 answer:

Dennis_Churaev [7]2 years ago

6 0

Answer:

9.5

Step-by-step explanation:

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2v^2-12 =-12v 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

2 years ago

What is the slope of the line that passes through (-1,3) and (4,6)

WINSTONCH [101]

0.6 would be the slope

5 0

2 years ago

Choose the point slope form of the equation below that represents the line that passes through the points (-6,4) and (2,0) Y+6=2

olchik [2.2K]

Answer:

you would need to see which one adds up or just an answer out in the wen then see what you get from there if not go find another way

Step-by-step explanation:

5 0

2 years ago

5 Points

deff fn [24]

Answer:

D. A rectangle and an isosceles triangle

Step-by-step explanation:

In the figure attached, the sign is shown. There we can see an arrow, which can be decomposed into a rectangle (on the left of the figure) and an isosceles triangle (on the right of the figure)

7 0

2 years ago

Hey guys please help!!

Advocard [28]

Answer:

Yes

Step-by-step explanation:

g(x) = - $\frac{1}{4}$ x + $\frac{1}{4}$

y = - $\frac{1}{4}$ x + $\frac{1}{4}$ ....... (1)

(1) × 4

4y = - x + 1

x = - 4y + 1

y = - 4x + 1

f(x) = - 4x + 1

∴ f(x) and g(x) are inverses

8 0

2 years ago