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3 years ago

Please help me quickly, brainly crown will be given when I can

Mathematics

1 answer:

gogolik [260]3 years ago

7 0

Answer:

the correct answers is c

Step-by-step explanation:

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Find X. Please help.

olga55 [171]

Answer:

24.89

Step-by-step explanation:

sin 40 = 16/x

x = 16/sin 40

x = 24.89

8 0

3 years ago

Read 2 more answers

Line AB and CD have the following points: A(2, 4), B(9, 8), C(-1, 2), and D(3, -5). Are the lines parallel, perpendicular, or ne

inysia [295]

We are given coordinates of A, B, C and D :

A(2, 4), B(9, 8), C(-1, 2), and D(3, -5).

Now, we need to find the slopes of AB and CD.

Slope of AB is :

$\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(2,\:4\right),\:\left(x_2,\:y_2\right)=\left(9,\:8\right)$

$m=\frac{8-4}{9-2}$

$m=\frac{4}{7}$ .

Slope of CD is:

$m=\frac{-5-2}{3-\left(-1\right)}$

$m=-\frac{7}{4}$ .

<em>Slope of CD is negative reciprocal of slope of slope of AB. </em>

<h3>Therefore, lines AB are CD are perpendicular.</h3>

6 0

3 years ago

Read 2 more answers

Which of the following tables represents a linear relationship that is also proportional?

SashulF [63]

The answer choice which represents a table which represents a linear and proportional relationship is; Choice B; whose y-intercept is 0.

<h3>What is a proportional relationship?</h3>

With respect to relationships, two variables are said to be proportional if the y-intercept of the relation between them is 0.

Hence, y = kx represents a proportional relationship where k is the constant of proportionality.

Read more on proportional relationship;

brainly.com/question/21302696

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2 years ago

Y=-4(x-2)2+4<br> what is the x intercept

valentina_108 [34]

<h2>Solving for the x-intercepts of a Parabola given the Equation</h2><h3>Answer:</h3>

$x = 3$ and $x = 1$

<h3>Step-by-step explanation:</h3>

$x$ -intercepts are just the values $x$ when $y = 0$ .

Solving for $x$ :

$0 = -4(x -2)^2 +4 \\ -4(x -2)^2 +4 = 0 \\ -4(x -2)^2 = -4 \\ 4(x -2)^2 = 4 \\ (x-2)^2 = \frac{4}{4} \\ (x -2)^2 = 1 \\ x-2 = \pm \sqrt1 \\ x -2 = \pm 1 \\ x = \pm 1 +2$

Solving for the Positive Square Root:

$x = 1 +2 \\ x = 3$

Solving for the Negative Square Root:

$x = -1 +2 \\ x = 1$

3 0

3 years ago

Y=x^2+3x+4 function, what is the equation of point x=1

quester [9]

The correct answer is none of them

7 0

3 years ago