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liq [111]
3 years ago
12

What is the product of 2x + y and 5x – y + 3?

Mathematics
2 answers:
andrew11 [14]3 years ago
8 0
<h3>What is the product of 2x + y and 5x – y + 3?</h3>

<em>The polynomial product has the distributive property.</em>

<em>Step 1:</em><em> We have to distribute each term of the first polynomial to every term of the second polynomial.</em>

(2x + y) * (5x - y +3) = 2x(5x - y + 3) + y(5x - y + 3) =

= 10x² - 2<u>xy</u> + 6x + 5<u>xy</u> - y² + 3y =

<em>Step 2: </em><em>Combine like terms.</em>

= 10x² - y² + 3xy + 6x + 3y

Answer : 10x² - y² + 3xy + 6x + 3y

​\textit{\textbf{Spymore}}​​​​​​

Bess [88]3 years ago
6 0

Answer:10x^2+3xy+6x+-1y^2+3y


On edg: 10,3,6,-1,3


Step-by-step explanation:


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\dfrac{\text{length of model}}{\text{length of ship}}=\dfrac{3}{32}\\\\\text{substitute}\\\\\dfrac{17}{x}=\dfrac{3}{32}\ \ \ |\text{cross multiply}\\\\3x=17\cdot32\\\\3x=544\ \ \ |:3\\\\x=\dfrac{544}{3}\approx181\ (in)

7 0
3 years ago
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To rent a bounce house: At Mike's Bounce Shop costs $30 plus $2 per hour. At Jose's Bounce Rentals, it costs $12 plus $8 per hou
ANEK [815]

Answer: After 3 hours both will have the same cost.

Step-by-step explanation:

Let x = Number of hours and y be the total cost.

Total cost = Initial cost + (cost per hour)(Number of hours)

At Mike's Bounce Shop,

Total cost (y)= 30+2x

At Jose's Bounce Rentals,

Total cost(y) =  12+8x

When both shops have the same cost, then

12+8x=30+2x\\\\\Rightarrow\ 8x-2x=30-12\\\\\Rightarrow\ 6x=18\\\\\Rightarrow\ x=3

Total cost = 12+8(3)=12+24=$36

Hence, After 3 hours both will have the same cost.

3 0
2 years ago
18/-3 please solve this
butalik [34]

Answer:

-6

Step-by-step explanation:

4 0
3 years ago
The vertices triangle ABC are A(0,3) , B(2,-4) and C (-4,-6 . Triangle ABC is rotated 180 degrees counter close wise about the o
shutvik [7]
work shown above! basically each coordinate is opposite so the new coordinates would be A(0,-3) B(-2,4) C(4,6)

4 0
3 years ago
Read 2 more answers
Uma balconista vendeu 70 centímetros de tecido a um freguês. Essa balconista preencheu corretamente a nota fiscal, escrevendo:
Evgesh-ka [11]

Answer:

Step-by-step explanation:

A clerk sold 70 centimeters of fabric to a customer. This clerk correctly filled out the invoice, writing:

1 point

a) 0.07 m

b) 0.070 m

c) 0.070 cm

d) 0.70 m

The clerk sold 70cm of fabrics

So, she want to filled the invoice but it length of fabrics sold must be in metre.

From metric units

100cm = 1m

Then,

70 cm = x

100cm = 1m

Cross multiply

70 cm × 1m = x × 100cm

Divide both side by 100cm

Then,

x = 70 cm × 1 m / 100cm

cm cancel out

x = 70 × 1m / 100

x = 70m / 100

x = 0.7m.

So, the correct answer is D.

To Portuguese

O funcionário vendeu 70cm de tecidos

Então, ela deseja preencher a fatura, mas o comprimento dos tecidos vendidos deve estar em metros.

De unidades métricas

100cm = 1m

Então,

70 cm = x

100cm = 1m

Multiplicação cruzada

70 cm × 1 m = x × 100 cm

Divida os dois lados por 100cm

Então,

x = 70 cm × 1 m / 100 cm

cm cancelar

x = 70 × 1m / 100

x = 70m / 100

x = 0,7 m.

Então, a resposta correta é D.

7 0
3 years ago
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