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3 years ago

Help! It's geometry. :) 35 points.

Mathematics

2 answers:

Masja [62]3 years ago

8 0

Answer:

g = 21

h = 8

Step-by-step explanation:

3g + 5 + 6g - 14 = 180 (since they are adjacent angles and will equal 180)

Simplify to get g = 21.

Substitute 21 for g in 3g + 5 and set that equal to 9h - 4 and solve for h to get 8 (since they are opposite angles and will equal each other)

Mariana [72]3 years ago

4 0

Answer:g=21 h = 8

Step-by-step explanation:

That's a rhombus supposedly so the opposite angles are congruent.

This means 9h-4=3g+5 Also the opposite sides of a rhombus add up to 180 degrees, so 3g+5+6g-14=180

9g=,189 g = 21

now plug this into the first equation

9h-4=3(21)+5

9h-4=63+5

9h=72

h=8

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alisha [4.7K]

Answer:

Those graphs do not intersect.

Estes gráficos no se intersecciónan

Step-by-step explanation:

The intersection points are x for which:

$f(x) = g(x)$

In this question:

$f(x) = x^{2} + 6x - 7$

$g(x) = 4x - 10$

$x^{2} + 6x - 7 = 4x - 10$

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Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this question:

$x^{2} + 2x + 3 = 0$

So $a = 1, b = 2, c = 3$

$\bigtriangleup = b^{2} - 4ac = 2^{2} - 4*1*3 = -8$

Sincce $\bigtriangleup$ is negative, there are no solutions, which means that those graphs do not intersect.

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3 years ago

Please help i’m so confused LMC of 9, 12 and 24

julia-pushkina [17]

Answer:

The LCM of 9, 12, and 24, is 72. 

Step-by-step explanation:

To find the answer you must figure out the factors of each number, and see which factor has the same number.

Factors of 9:  Factors of 12: Factors of 24: 

9 12 24

18 24 48

27 36 72

36 48

45 60

54 72

63

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When we look at all these factors, none of them have the same number except 72. Since all of these factors have 72 in them, this is the LCM of 9, 12, and 24.

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3 years ago

Read 2 more answers

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emmainna [20.7K]

Answer:

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Step-by-step explanation:

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3 years ago

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creativ13 [48]

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3 years ago