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Morgarella [4.7K]
3 years ago
13

Distributive property Write 3x(21+15) using distributive property

Mathematics
2 answers:
Helen [10]3 years ago
4 0
63x+45x   = 108x

You just multiply 3x by 21 and 15 to get 63x and 45x. You then add the like terms to get 108x.
Lesechka [4]3 years ago
4 0

3x ( 21 + 15 ) = 108(I know this is not the question but I wanted to solve it.)

Hope it helps! :) :) :)

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In the diagram, ABC is a straight line such that AB = 6.8 cm,BC=17.6cm,BD=8.8
grandymaker [24]

Answer: a.= 28.2°, b= 13.6cm, c = 3.2cm.

Step-by-step explanation:

8 0
3 years ago
The diameter of a circle is 20 centimeters what is the length of radius blank centimeters edulastic
riadik2000 [5.3K]

Answer:

The diameter is 2 times the radius.

D=2r

Substitute 20 as the diameter and solve for r.

20=2r

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10=r

So, the radius is 10 centimeters.

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5 0
2 years ago
Graph the linear function using the slope and y-intercept.<br> y=1/3x+3
hammer [34]

Answer:

Graphed this on desmos, hope it helped!!

Step-by-step explanation:

8 0
2 years ago
the base of the founten is rectangular . its dimention 1 2/3 feet by 2 2/3 feet . what is the area of the base of the founten
Montano1993 [528]
The area of a rectangle is calculated by multiplying the length of the rectangle and the width of the rectangle. In this case, the length (the longer side) is 2 2/3 feet while the width (shorter side) is 1 2/3 feet. To multiply fraction, first convert mixed numbers into improper fractions:

2 2/3 = 8/3
1 2/3 = 5/3
Multiplying the two fractions yield: 
8/3 x 5/3 = 40/9 ft2 

The final answer is 40/9 ft2 or 4 4/9 ft2. 

3 0
3 years ago
1.Encuentra la ecuación de la circunferencia que tiene como ecuación ordinaria (x-4)² + (y+5)²= 25 2- encuentra la ecuación gene
rodikova [14]

Responder:

1) x² + y²-8x + 10y + 16 = 0

2) x² + y² + x + 18y + 33 = 0

Explicación paso a paso:

A partir de la pregunta, debemos expresar la ecuación en la forma estándar de un círculo expresado como;

x² + y² + 2gx + 2fy + c = 0 donde;

(-g, -f) es el centro.

1) Para la ecuación (x-4) ² + (y + 5) ² = 25

Expande el paréntesis;

(x-4) ² + (y + 5) ² = 25

x²-8x + 16 + y² + 10x + 25 = 25

x²-8x + 16 + y² + 10y + 25-25 = 0

Recopile términos similares;

x² + y²-8x + 10y + 16 + 0 = 0

<em>x² + y²-8x + 10y + 16 = 0 </em>

<em>Por lo tanto, la ecuación requerida es x² + y²-8x + 10y + 16 = 0 </em>

<em> </em>

2) Para la expresión (x + 1) ² + (y + 9) ² = 49

x² + x + 1 + y² + 18y + 81 = 49

x² + x + 1 + y² + 18y + 81-49 = 0

Recopile términos similares;

x² + y² + x + 18y + 82-49 = 0

<em>x² + y² + x + 18y + 33 = 0 </em>

<em>Por tanto, la ecuación requerida es x² + y² + x + 18y + 33 = 0</em>

4 0
2 years ago
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