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Ilya [14]
3 years ago
11

Simplify the following.(2x-y)(x+2y)​

Mathematics
1 answer:
Kaylis [27]3 years ago
5 0

Answer:

=2x^2+3xy-2y^2

Step-by-step explanation:

When given the following problem;

(2x-y)(x+2y)

Distribute, multiply every number in one of the parenthesis by every number in the other;

(2x-y)(x+2y)\\=(2x)(x)+(2x)(2y)+(-y)(x)+(2y)(-y)

Simplify,

=(2x)(x)+(2x)(2y)+(-y)(x)+(2y)(-y)\\=2x^2+4xy-xy-2y^2\\=2x^2+3xy-2y^2

Therefore, the final answer is;

=2x^2+3xy-2y^2

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Tickets for a concert cost $10 each if you order them online, but you must pay a service charge of $8 per order. The tickets are
jekas [21]

Answer:

The system of equation to model the situation are:

C = 10t + 8

C = 12t

Step-by-step explanation: Complete question ( Let C be the total cost and let t be the number of tickets).

Ordering tickets online cost $10 plus additional service charge of $8.

Therefore total cost,C = 10t + 8

Buying tickets at the door cost $12

Therefore, total cost,C = 12t

The system of equation to model the situation are:

C = 10t + 8

C = 12t

3 0
3 years ago
PLS DO NOT USE THIS FOR POINTS. BRAINLIEST AND 100 POINTS
statuscvo [17]
The mean of the data is 8
8 0
3 years ago
Read 2 more answers
What is the measure of Y ​
vova2212 [387]

Answer:

62

Step-by-step explanation:

60 + 58 + y = 180

118 + y = 180

y = 180 - 118

y = 62

3 0
2 years ago
The minimum of the graph of a quadratic function is located at (-1,2) . the point (2,20) is also shown on the parabola . which f
Gekata [30.6K]
The complete question in the attached figure

we know that
the equation of a parabola is
y=a(x-h)²+k
where
(h,k) is the vertex   --------> (h,k)--------> (-1,2)
so
y=a(x+1)²+2

point (2,20)
for x=2
y=20
20=a(2+1)²+2--------> 20=a*9+2--------> 9*a=18---------> a=2

the equation of a parabola is
y=a(x+1)²+2-------> y=2(x+1)²+2

therefore

the answer is the option
<span>C) f(x) = 2(x + 1)2 + 2</span>

4 0
3 years ago
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In Mr. Davis’s class, 13 students wear glasses and 9 do not. What is the ratio of students who do not wear glasses to the number
Artemon [7]

Answer:

9/13

Step-by-step explanation:

The ratio of

do not wear glasses : those who do wear glasses = 9 / 13

Be sure and keep the numbers opposite their descriptions.

9 is across from those who wear glasses

13 is across from those who do not wear glasses.

5 0
3 years ago
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