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3 years ago

Help me pls guys pls

Mathematics

1 answer:

makkiz [27]3 years ago

5 0

Answer: 55 cubic units

Step-by-step explanation:

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Use the given information to write the equation of the line in slope-intercept form: y = mx + b

worty [1.4K]

Answer:

$y =2x + 3$

Step-by-step explanation:

Given

(-2,-1) and (3,9).

Required

Determine the line equation

First, we calculate slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

Where

$(x_1,y_1) = (-2,-1)$

$(x_2,y_2) = (3,9)$

So, we have:

$m = \frac{9 - (-1)}{3- (-2)}$

$m = \frac{9+1}{3+2}$

$m = \frac{10}{5}$

$m = 2$

The equation is then calculated using:

$y - y_1 = m(x - x_1)$

$y - (-1) =2(x - (-2))$

$y - (-1) =2(x +2)$

$y +1 =2(x +2)$

Open bracket

$y +1 =2x + 4$

Subtract 1 from both sides

$y +1-1 =2x + 4-1$

$y =2x + 3$

7 0

3 years ago

X + y = 12<br> x - y = 12

lorasvet [3.4K]

Answer:

what are you asking for

Step-by-step explanation:

6 0

2 years ago

Will give, Branliest.

Vlad [161]

Answer:

Step-by-step explanation:

x * 5 - 17 = 103

x * 5 = 120

x = 24

4 0

3 years ago

Read 2 more answers

The length of the base of a triangle is twice it’s height. If the area of the triangle is 441 square kilometers, find the height

Sonja [21]

Answer:

21 kilometers

Step-by-step explanation:

Let the height be $x$ . Then, the length of the base is $2x$ . The formula for the area is of the triangle is given by base*height/2. Therefore, the area of the triangle is equal to $\frac{x \cdot 2x}{2} = x^2$ , which is in turn equal to 441. Since $x$ must be positive, then $21^2=441$ , meaning that the height is $21$ kilometers.