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Find the squares of (y+3)

emmasim [6.3K]

Answer:

Since we know that

(a+b)

2

=a

2

+2ab+b

2

(a−b)

2

=a

2

−2ab+b

2

Now,

(i)

(x+3y)

2

=x

2

+2×x×3y+(3y)

2

=x

2

+6xy+9y

2

(ii)

(2x−5y)

2

=(2x)

2

−2×2x×5y+(5y)

2

=4x

2

−20xy+25y

2

(iii)

(a+

5a

1

)

2

=a

2

+2×a×

2a

1

+(

2a

1

)

2

=a

2

+1+

4a

2

1

(iv)

(2a−1a)=(1a)

2

(1a)

2

=1a

2

Answer

8 0

3 years ago

If a team scored 96 points while making 18 free throws, how many field goals were made?

vlabodo [156]

Answer:

26 free throws

Step-by-step explanation:

96-18=78

78 divided by how much one free throw is worth (3)

you would get 26

hope this helps!

8 0

3 years ago

a 120 watt light bulb uses about 0.1 kilowatt of electricity per hour. if electricity costs 0.20 per kilowatt hour, how much doe

Allushta [10]

A 120 watt light-bulb is a 0.120 kilowatt light bulb.

In one hour, it uses 0.120 kilowatt-hour of energy.

If electrical energy costs $0.20 per kilowatt hour, then that light bulb costs

(0.120 kilowatt-hour / hour) x (0.20 dollar / kilowatt-hour) =

(0.120 x $0.20 / hour) =

$0.024 / hour = 2.4¢ per hour

5 0

4 years ago

1) What can u do to get 2x alone on the left side?

CaHeK987 [17]

Answer:

1)

82.5 - 82.5 + 2x = 338.5 - 82.5

2x = 256

2)

2x ÷ 2 = 256 ÷ 2

x = 128

Step-by-step explanation:

1)

In order to get rid 82.5, you have to substract the same value on both side to get a 0 value.

2)

In order to find the value of x, you have to divide the value that is sticked with x which is 2. As you divide 2 by 2, you will get 1 as a single value of x so you have to divide 2 to both side too.

5 0

3 years ago

Write the number name for 43,080,700

Likurg_2 [28]

Forty three million, eighty thousand, seven hundred

5 0

3 years ago

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