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RoseWind [281]
3 years ago
10

How is using a model to multiply 0.3 by 0.7 similar to finding the area of a rectangle?

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
6 0

Answer:

no

Step-by-step explanation:

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Val needs to find the area enclosed by the figure. The figure is made by attaching semicircles to each side of a 58​-by-58 squar
Savatey [412]

Answer:

We need to find the area of the semicircles + the area of the square.

The area of a square is equal to the square of the lenght of one side.

As = L^2 = 58m^2 = 3,364 m^2

Now, each of the semicircles has a diameter of 58m, and we have that the area of a circle is equal to:

Ac = pi*(d/2)^2 = 3.14*(58m/2)^2 = 3.14(27m)^2 = 2,289.06m^2

And the area of a semicircle is half of that, so the area of each semicircle is:

a =  (2,289.06m^2)/2 = 1,144.53m^2

And we have 4 of those, so the total area of the semicircles is:

4*a = 4* 1,144.53m^2 = 4578.12m^2

Now, we need to add the area of the square 3,364 m^2 + 4578.12m^2 = 7942.12m^2

This is nothing like the provided anwer of Val, so the numbers of val may be wrong.

4 0
3 years ago
What is the product of x+5 and x^2+3x-4 SHOW ALL WORK FOR BRAINLEIST (write you answer in standard form and use box method or di
ser-zykov [4K]

Answer:

  x^3 +8x^2 +11x -20

Step-by-step explanation:

(x+5)  * (x^2+3x-4)

Multiply x * (x^2+3x-4)   = x^3 + 3x^2 -4x

Multiply 5 *  (x^2+3x-4)  =          5x^2+ 15x  -20

Add                                   -----------------------------------

                                             x^3 +8x^2 +11x -20

4 0
3 years ago
Madeline drove 180 miles in 4 hours. If she drove at a constant rate, how far did shetravel in one hour?On the double number lin
Tcecarenko [31]

We have a question on motion with the elements of distance, time taken and speed.

This question in particular is asking us for distance per unit time (in this case, hours).

We are required to find out how much distnace is covered in on hour and our approach will be as follows:

\text{Speed= }\frac{\text{Distance}}{\text{time}}=\frac{180\text{miles}}{4\text{hours}}=\frac{45\text{ miles}}{1\text{ hour}}

This right here just tells us that 4 hours, Madeline covered 180 miles and since her rate was constant (equal distances in equal times), then she also covered 45 miles in an hour.

Now we plot our number line.

8 0
1 year ago
Select the correct answer.
ipn [44]

Answer:b

Step-by-step explanation:

5 0
3 years ago
A soccer team is playing a game in a stadium. The team fills a total of
padilas [110]

Answer:

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Step-by-step explanation:

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2 years ago
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