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3 years ago

How to find the area of a rectangle with fractional sides?

1 answer:

andrey2020 [161]3 years ago

3 0

You would find the Area the same way as if they were whole numbers.
Area = Length x Width

If the fractions are mixed numbers, then convert them to improper fractions.

Example: Length = $\frac{1}{2}$ , Width = 1 $\frac{2}{3}$

Area = $\frac{1}{2}$ x 1 $\frac{2}{3}$
= $\frac{1}{2}$ x $\frac{5}{3}$
= $\frac{5}{6}$

Hope this heps!

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the sum of three numbers is 131. The second of three numbers is seven more than twice the first. The third number is 12 less tha

spin [16.1K]

No. 1 = x
No. 2 = 2x+7
No. 3 = x-12

Answer:

x+(2x+7)+(x-12) = 131

From there you solve to get the numbers:

34, 75 and 22

3 0

3 years ago

When deriving the quadratic formula by completing the square, what expression can be added to both sides of the equation to crea

____ [38]

Answer:

According to steps 2 and 4. The second-order polynomial must be added by $-c$ and $b^{2}$ to create a perfect square trinomial.

Step-by-step explanation:

Let consider a second-order polynomial of the form $a\cdot x^{2} + b\cdot x + c = 0$ , $\forall \,x \in\mathbb{R}$ . The procedure is presented below:

1) $a\cdot x^{2} + b\cdot x + c = 0$ (Given)

2) $a\cdot x^{2} + b \cdot x = -c$ (Compatibility with addition/Existence of additive inverse/Modulative property)

3) $4\cdot a^{2}\cdot x^{2} + 4\cdot a \cdot b \cdot x = -4\cdot a \cdot c$ (Compatibility with multiplication)

4) $4\cdot a^{2}\cdot x^{2} + 4\cdot a \cdot b \cdot x + b^{2} = b^{2}-4\cdot a \cdot c$ (Compatibility with addition/Existence of additive inverse/Modulative property)

5) $(2\cdot a \cdot x + b)^{2} = b^{2}-4\cdot a \cdot c$ (Perfect square trinomial)

According to steps 2 and 4. The second-order polynomial must be added by $-c$ and $b^{2}$ to create a perfect square trinomial.

7 0

3 years ago

Read 2 more answers

What is the value of x? Explain and show the steps.<br> 192x *4 = -5 (round to nearest tenth)

Nat2105 [25]

Answer:

0 or -5/768

Step-by-step explanation:

192x * 4 is 768x

Now you have 768x=-5

If you divide both sides by 768 you get -5/768

In decimal form that is -0.006510416

If you round the decimal to the nearest tenth you get 0

I hope this helps!

Please give brainliest if it did help

6 0

3 years ago

a school held a tennis tournament. after each round one fourth of the players were eliminated. if there were 64 players at the s

Sveta_85 [38]

Answer:

If there are 32 teams in the tournament and 1 winner, there were 31 games. So, 63 - 31 = 32 games.

8 0

3 years ago

Read 2 more answers

What is the equation in point−slope form of the line passing through (−3, −4) and (0, 2)?

Nana76 [90]

Answer:

y = 2x + 2

Step-by-step explanation:

To find the slope we do (Y1 - Y2)/(X1-X2) aka rise over run

So, m = (-4 - 2) / (-3 - 0)

m = 2

Now we have y = 2x +b

Notice one of our points is (0,2)

Since the x value of that point is 0, it is the y intercept.

In the slope intercept form b = y-intercept

Therefore b = 2

So, y = 2x + 2

4 0

3 years ago