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3 years ago

Please help, don’t know the answerWill mark as brainliest

Mathematics

1 answer:

Ludmilka [50]3 years ago

6 0

Answer:

9 is the area

Step-by-step explanation:

Base x height x 1/2 = area

3 x 6 x 1/2 = area

18 x 1/2 = area

area = 9

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9 divided by 4 and 4/5

liraira [26]

Answer:

$\frac{45}{24} = 1.875$

Step-by-step explanation:

$\frac{9}{4+\frac{4}{5}} = \frac{9}{\frac{24}{5}} = \frac{45}{24} = 1.875$

7 0

3 years ago

11-14. Find each missing measure. Correct answer will get brainliest.

Salsk061 [2.6K]

<ADB=20
<ADC=55
<BDC=32.5
<ACB=20

4 0

4 years ago

Using the following equation, find the center and radius of the circle. You must show all work and calculations to receive credi

adoni [48]

Answer:

$r = 4$

The center is:

(2, -4)

Step-by-step explanation:

We have the following equation

$x^2 - 4x + y^2 + 8y = -4$

The general equation of a circle has the following form

$(x-h)^2 + (y-k)^2 = r^2$

Where r is the radius and the point (h, k) is the center of the circle

To transform the given equation in the general equation of a circumference we must use the method of square completions

Step 1

$(x^2 - 4x) + (y^2 + 8y) = -4$

Step 2

Add and subtract $(\frac{b}{2})^2$ For an equation of the form

$ax^2 +bx +c$

$(x^2 - 4x +4)-4 + (y^2 + 8y +16) -16= -4$

Step 3 Factor the expressions within the parentheses

$(x-2)^2-4 + (y+4)^2 -16= -4$

Step 4 Simplify

$(x-2)^2 + (y+4)^2= -4+16+4$

$(x-2)^2 + (y+4)^2= 4^2$

Finally

$r = 4$

The center is:

(2, -4)

7 0

3 years ago

Andreas bought 2 gallons of ice cream at $5.50 per gallon and 12 cupcakes at $2.50 per cupcake. Which explanation correctly tell

Semenov [28]

It's Definitely!!!!!!!!!

4 0

4 years ago

Read 2 more answers

Triangle ABC has vertices A (3,-3) B (-7,9) C (-11,3). Determine the point of intersection of the medians, and state the coordin

emmainna [20.7K]

Answer:

(-5, 3)

Step-by-step explanation:

Let O(x, y) be the centroid of the triangle.

The median of a triangle is a line segment that joins the vertex of a triangle to the midpoint of the opposite side. There are three medians in a triangle; and the medians of a triangle intersect at a point called the centroid.

The centroid of a triangle is gotten from the average of the x coordinates and the y coordinates of all the three vertices.

For Triangle ABC has vertices A (3,-3) B (-7,9) C (-11,3) and centroid O(x, y). Hence:

$x=\frac{3 + (-7)+(-11)}{3}=-5\\\\y=\frac{-3 + 9 + 3}{3} =3$

The centroid is at (-5, 3)

5 0

3 years ago