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2 years ago

Can someone Please Help me?

Mathematics

1 answer:

blagie [28]2 years ago

7 0

1.) C

2.) A

3.) B

4.) C

5.) idk

6.) A

7a.) non proportional because the line does not pass through the origin (0,0)

7b.) The slope is -2x

7c.) The y-intercept of the line is -3.

7d.) The equation of the line is y = -2x - 3

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The expression for finding the perimeter of a octogon with equal sides is8 where s is the length of one side . Evaluate this exp

Sav [38]

Answer:

48 inches

Step-by-step explanation:

Put the value of the variable where the variable is in the expression and do the arithmetic.

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Suppose line segment AB has one endpoint at A(0, 0). What are the coordinates of B if (5, 3) is 1/3 of the way from A to B?

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Answer:

$B(x_2,y_2)= (20,12)$

Step-by-step explanation:

Given

$A = (0,0)$

$Ratio; m : n = 1 : 3$

$Point\ at\ 1 : 3 = (5,3)$

Required

Coordinates of B

This question will be answered using line ratio formula;

$(x,y) = (\frac{mx_2 + nx_1}{m + n},\frac{my_2 + ny_1}{m + n})$

In this case:

$(x,y) = (5,3)$

$(x_1,y_1) = (0,0)$

$m : n = 1 : 3$

Solving for $(x_2,y_2)$

$(x,y) = (\frac{mx_2 + nx_1}{m + n},\frac{my_2 + ny_1}{m + n})$ becomes

$(5,3) = (\frac{1 * x_2 + 3 * 0}{1 + 3},\frac{1 * y_2 + 3 * 0}{1 + 3})$

$(5,3) = (\frac{x_2 + 0}{4},\frac{y_2 + 0}{4})$

$(5,3) = (\frac{x_2}{4},\frac{y_2}{4})$

Comparing the right hand side to the left;

$\frac{x_2}{4} = 5$ -- (1)

$\frac{y_2}{4} = 3$ -- (2)

Solving (1)

$x_2 = 5 * 4$

$x_2 = 20$

Solving (2)

$y_2 = 3 * 4$

$y_2 = 12$

Hence;

$B(x_2,y_2)= (20,12)$

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3 years ago

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Answer:

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Step-by-step explanation:

The zero is the value of x that makes the linear factor zero:

5x +0 = 0

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A circular concrete slab is a cylinder. Vol = pi%2Ar%5E2%2Ah
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