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Nadusha1986 [10]
3 years ago
8

9x (-2y + 5x) - 4 xy (6x-3y) please the person who answers will be marked as brainliest​. please show working​

Mathematics
1 answer:
Alenkasestr [34]3 years ago
4 0

Answer:

See explanation

Step-by-step explanation:

9x(-2y+5x)-4xy(6x-3y)

By the distributive property this is equal to:

9x(-2y)+9x(5x)-4xy(6x)-4xy(-3y)=\\\\-18xy+45x^2-24x^2y+12xy^2

Hope this helps!

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Andrej [43]
Area is length times width 42x20=840
3 0
3 years ago
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Find the values of x and y. Leave answers in simplest radical form.<br>​
NNADVOKAT [17]

\sin(60°) =  \frac{x}{14}  \Leftrightarrow x = 14 \sin(60°) =  \frac{14 \sqrt{3} }{2}  = 7 \sqrt{3}  \\  \cos(60°)  =  \frac{y}{14} \Leftrightarrow y = 14\cos(60°) =  \frac{14}{2}  = 7

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3 years ago
The point G(6,4) is rotated 180° clockwise around the origin. What
siniylev [52]

Answer:

Step-by-step explanation:

when (x,y) is rotated through 180 then new coordinates are (-x',-y')

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5 0
3 years ago
Ally has 4 times as many pencils as Anna Claire. They have 30 pencils in all. How many pencils does Ally have?
dexar [7]

T = 30

A = 4c

A + c = T

Anna Claire has 6 pencils. Times 4 makes Ally's pencil count. 4 * 6 = 24

24 + 6 = 30. So, you answer is: Ally has 24 pencils.

5 0
3 years ago
A área de um retângulo é igual a 44, sabendo que as suas medidas são iguais a 4 e (3x+2), calcule a medida do lado maior deste r
jekas [21]

Responda:

11

Explicação passo a passo:

Área do retângulo = comprimento * largura

Dado

Comprimento = 4

Largura = 3x + 2

Área = 44

Substitua na fórmula e obtenha x

44 = 4 (3x + 2)

44 = 12x + 8

12x = 44-8

12x = 36

x = 36/12

x = 3

Obtenha os lados mais longos

Lado mais longo = 3x + 2

Substitua x = 3

Lado mais comprido = 3 (3) + 2

Lado mais comprido = 11

Portanto, a medida do lado mais longo deste retângulo é 11

4 0
3 years ago
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