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timofeeve [1]
2 years ago
13

(x²+4x+4)/(x+2)algebraic expressions class 8no spamms​

Mathematics
1 answer:
maks197457 [2]2 years ago
5 0

Answer:

x+2

Step-by-step explanation:

\frac{x ^{2} + 4x + 4 }{x + 2}  \\ \frac{(x) ^{2} + 2 \times x \times 2 + (2) ^{2}  }{x + 2}  \\ \   \frac{(x + 2) ^{2} }{x + 2}  \\  \frac{(x + 2)(x + 2)}{x + 2}  \\ x + 2

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4x - 5y = 15 solve for y​
Wewaii [24]

Answer:

y=-\frac{15-4x}{5}

Step-by-step explanation:

4x-5y=15

Subtract 4x from both sides:

4x-5y-4x=15-4x

-5y=15-4x

Divide both sides by -5:

\frac{-5y}{-5}=\frac{15-4x}{-5}

y=-\frac{15-4x}{5}

7 0
2 years ago
Select proportional or not proportional to correctly classify the pair of ratios. 1.2/3 and 1.8/4.5
Gnesinka [82]

Answer:

Proportional.

Step-by-step explanation:

Find the cross products. If they are same, then they are proportional.

\dfrac{1.2}{3} = \dfrac{1.8}{4.5}

Cross multiply,

1.2 * 4 .5       =         3*1.8

      5.40      = 5.4

So, they are proportional.

Or

Multiply the numerator and denominator of 1.2/3 by 1.5

\dfrac{1.2*1.5}{3*1.5}=\dfrac{1.8}{4.5}

From this we come to know they are proportional

Or

1.2 : 3 :: 1.8 : 4.5

Product of means = 3*1.8 = 5.4

Product of extremes = 1.2*4.5 = 5.4

Product of means = product of extremes. So, they are proportional.

6 0
2 years ago
Read 2 more answers
What is an equation of the line that passes through (2,2) and is parellel to the line y=7x
laila [671]

Answer:

Therefore, equation of the line that passes through (2,2) and is parellel to the line y=7x is y=7x-12

Step-by-step explanation:

Given:

a line y=7x

To Find:

Equation of line passing through ( 2, 2) and is parellel to the line y=7x

Solution:

y=7x     ...........Given

Comparing with,

y=mx

Where m =slope

We get

Slope = m = 7

We know that parallel lines have Equal slopes.

Therefore the slope of the required line passing through (2 , 2) will also have the slope = m = 7.

Now the equation of line in slope point form given by

(y-y_{1})=m(x-x_{1})

Substituting the points and so we will get the required equation of the line,

(y-2)=7(x-2)=7x-14\\\\y=7x-12......Equation\ of\ line

Therefore, equation of the line that passes through (2,2) and is parellel to the line y=7x is y=7x-12

4 0
3 years ago
(b) Three objects are brought close to each other, two at a time. When objects A and B are brought together, they repel. When ob
zheka24 [161]

Answer:

Step-by-step explanation:

When A and B are brought together then they repel i.e. A and B have same charge, either negative or positive

When B and C are brought together then they also repel. This implies that nature of charge on  B and C is same          

4 0
3 years ago
A square is drawn by joining the mid points of the sides of a square. A third square is
TEA [102]

Answer:

23

Step-by-step explanation:

7 0
3 years ago
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