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2 years ago

(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:

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

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

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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.

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

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.

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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 $y=7x-12$

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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

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3 years ago

A square is drawn by joining the mid points of the sides of a square. A third square is

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Answer:

Step-by-step explanation:

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3 years ago

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

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