3 years ago

Can someone please help? <3

Mathematics

2 answers:

solmaris [256]3 years ago

8 0

Answer:

A. 5 units is the distance from P to Q

777dan777 [17]3 years ago

7 0

Answer:

A. 5 units

Step-by-step explanation:

Use the formula: √(x2−x1)2+(y2−y1)2

Solve:√((3-(-1))^(2)+((-1)-(-4))^(2))

You'll get the answer: 5

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Solve the proportion: 6/x = 21/28

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X=8
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Which expression gives the solutions of -5+2x^2=-6x

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What is an equation of the line that passes through the points (-4, -1)(−4,−1) and (6, -1)(6,−1)?

Vlada [557]

$\boxed{y=-1}$

<h2>Explanation:</h2>

In order to solve this problem, let's remember the point-slope form of the equation of a line:

$y-y_{1}=m(x-x_{1}) \\ \\ m:slope \\ \\ (x_{1},y_{1}):A \ point \ on \ the \ line$

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$(x_{1},y_{1})=(-4, -1) \\ \\ (x_{2},y_{2})=(6, -1)$

So:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}} \\ \\ m=\frac{-1-(-1)}{6-(-4)} \\ \\ m=0$

So this is a constant line (slope equals zero). Therefore, every point has a y-coordinate $y=-1$ . In other words, the equation is:

$\boxed{y=-1}$

<h2>Learn more:</h2>

Equation of lines: brainly.com/question/13015874

#LearnWithBrainly

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3 years ago

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3 years ago

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A circle with radius 3 has a sector with a central angle of 1/9 pi radians

Art [367]

The area of sector is 1.57 m²

<u>Explanation:</u>

Given:

Radius, r = 3 m

Central angle of a sector = 1/9π radians

Area of sector, A = ?

We know:

Area of sector, A = $\frac{1}{2} r^2 \alpha$

where,

α is the central angle in radians

On substituting the value we get:

$A = \frac{1}{2} X(3)^2 X \frac{1}{9}X 3.14\\ \\A = 1.57 m^2$

Therefore, the area of sector is 1.57 m²

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4 years ago