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3 years ago

21) BRAINLIEST AND 10+ POINTS!! PLS HELP ASAP :)

Mathematics

1 answer:

Varvara68 [4.7K]3 years ago

5 0

9.4 years would be the answer

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Choose the constant term that completes perfect square trinomial <br> y^2+0.1y

Levart [38]

If this is correct the answer would be
y^2 + 0.1y + 0.0025

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3 years ago

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:

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

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3 years ago

(x+4) (x+7) find product<br>

nataly862011 [7]

Answer:

x2+11x+28

Step-by-step explanation:

Thus, (x+7)(x+4) multiplies out to x2+4x+7x+28, which can be simplified to

x2+11x+28

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3 years ago

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Find the value of x in the isosceles triangle shown below.

Salsk061 [2.6K]

I think its C sorry if its wrong!

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2 years ago

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Solve the following inequality.45 < 9(x + 3) < 153

oksian1 [2.3K]

In order to solve this inequality, we can do the following steps:

[tex]\begin{gathered} 45<9(x+3)<153\\ \\ \frac{45}{9}Therefore the correct option is B.

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1 year ago