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Anestetic [448]
3 years ago
12

Find the area of these figures

Mathematics
1 answer:
djyliett [7]3 years ago
3 0

Answer:

I think the answer for the first one would be 32^2 meters for 4m × 4m and 13m. The 6m and 8m would be 48^2 meters. The second one would be 5in × 5in would be 25in and 2in × 4in would be 8in. The third one would be 6ft × 6ft × 6ft would be 48ft.

Step-by-step explanation:

To find area, you have to multiply the sides of each figure.

  1. A = a^2 = 4m × 4m × 13m = 32.
  2. A = a^2 = 6m × 8m = 48.
  3. 5 × 5 = 25.
  4. 2 × 4 = 8.
  5. 6 × 6 = 36 + 12 = 48.

I hope this helps your question!

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A new car has factory installed tires that are P205/60R16. The owner wants to a little bigger and opts for the set of P215/75R15
xenn [34]

Answer:

The car is actually moving at a speed more than 80 miles per hour

Step-by-step explanation:

Theoretically, since the speedometer of the car is at 80, it means the car is having a speed of 80 miles / hr. The car should move by a distance of 80 miles in an hour.

But, practically changing the tire size can affect the speedometer accuracy because larger tire covers more ground in each complete revolution. So, the  actual speed is higher than the speedometer reads.

<u>Example</u>

Suppose a car comes with factory-installed tires which are 21.8 inches in diameter. It means that the circumference of each tire is 68.5 inches. Now if we replace the old tires with new tires having 24.6 inches as diameter then  each new tire has a circumference of 77.3 inches. This means the car  travels almost 10 inches more with each complete revolution. This can  tremendously affect the reading on the speedometer. The speedometer  will now indicate a speed which is too slow by almost 13%. When the  speedometer reads 60 miles/hour, the car will actually be traveling at a speed of 67.7 miles/hour.


5 0
3 years ago
Mike is driving a boat at 12 mph and is increasing his speed by 0.2 mph each second.. Hank is driving a boat at 26.4 mph and is
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Answer:

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Step-by-step explanation:

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3 years ago
Riley has r red peppers and 51 green peppers. Write an expression that shows how many peppers Riley has.
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Answer:

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Step-by-step explanation:

8 0
3 years ago
By what percent will the product of two numbers change, if the first number increases by 70%, while the second number decreases
erica [24]

Answer:

The product of two numbers changes by 2% when the first number increases by 70%, while the second number decreases by 40%.

Step-by-step explanation:

Let first number be x and second number be y .

Then product of x and y = xy  ......(1)

Given the first number increases by 70%, while the second number decreases by 40% this means,

x is increased  by 70%  that is

increased value of x = x + 0.7(x) = 1.7 x

Similarly y is decreases by 40% that is

decreased value of y = y - 0.4(y) = 0.6y

New product will be = (increased value of x )( decreased value of y)

                                  = (1.7x)(0.6y)

                                  =1.02xy

Changed Percentage = \dfrac{\text{new value - original value}}{{\text{original value}}}\times 100

Substitute the values, we get,

Changed Percentage = \frac{1.02xy-xy}{xy}\times 100

Changed Percentage = \frac{0.02xy}{xy}\times 100

Changed Percentage = 0.02\times 100

Changed Percentage = 2\%

Thus, the product of two numbers changes by 2% when the first number increases by 70%, while the second number decreases by 40%.

5 0
4 years ago
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