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kondor19780726 [428]

3 years ago

11

Area of the triangle

1 answer:

Naya [18.7K]3 years ago

7 0

25*15=375
375/2= 187.5

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(2x - 3y + 1) + (4x + y + 5)=

disa [49]

6x-2y+5. Here you just do addition/subtraction with the coefficients on the variables.

3 0

3 years ago

the drama club sold tickets for its show. they sold student tickets for $12 each and adult tickets for $15 each. a total of 650

grigory [225]

The correct answer is: A. 150 more students tickets sold than adult tickets.

4 0

2 years ago

What is 87.65•26.889=

yuradex [85]

Answer:

2,356.82085‬

Step-by-step explanation:

87.65*26.889= 2,356.82085

5 0

3 years ago

5. Mis the midpoint of CD. C has coordinates (-1,-1) and

lana66690 [7]

Answer/Step-by-step Explanation:

4. Midpoint (M) of AB, for A(-2, -3) and B(1, 2) is given as:

$M(\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2})$

Let $A(-2, -3) = (x_1, y_1)$

$B(1, 2) = (x_2, y_2)$

Thus:

$M(\frac{-2 + 1}{2}, \frac{-3 + 2}{2})$

$M(\frac{-1}{2}, \frac{-1}{2})$

5. Given M(3, 5) as midpoint of CD, and C(-1, -1),

let $C(-1, -1) = (x_2, y_2)$

$D(?, ?) = (x_1, y_1)$

$M(3, 5) = (\frac{x_1 +(-1)}{2}, \frac{y_1 +(-1)}{2})$

Rewrite the equation to find the coordinates of D

$3 = \frac{x_1 - 1}{2}$ and $5 = \frac{y_1 - 1}{2}$

Solve for each:

$3 = \frac{x_1 - 1}{2}$

$3*2 = \frac{x_1 - 1}{2}*2$

$6 = x_1 - 1$

$6 + 1= x_1 - 1 + 1$

$7 = x_1$

$x_1 = 7$

$5 = \frac{y_1 - 1}{2}$

$5*2 = \frac{y_1 - 1}{2}*2$

$10 = y_1 - 1$

$10 + 1= y_1 - 1 + 1$

$11 = y_1$

$y_1 = 11$

Coordinates of D is (7, 11)

7 0

3 years ago

Item 12 What is the shape of the cross section of the cylinder in each situation? Drag and drop the answer into the box to match

Goryan [66]

You can build a cylinder in two ways: either you draw a circle on a plane, and "raise" it perpendicularly to the plane itself, or you start with a rectangle, and rotate it around one of its sides.

For these reasons, if you cut the cylinder with a plane parallel to the base you have a circular cross section, while if you cut the cylinder with a plane perpendicular to the base you have a rectangular cross section.

5 0

3 years ago

Read 2 more answers