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Svetradugi [14.3K]
2 years ago
7

Area help hellllppppp

Mathematics
1 answer:
slega [8]2 years ago
8 0

Answer:

Area = 14¹/16 yd² or 14.0625 yd²

Step-by-step explanation:

2. The figure given is a square having equal sides of 3¾ yd each.

Formula for area of the square = a²

Where,

a = 3¾ yd

Plug in the value into the equation:

Area = (3¾)²

Change to improper fraction

Area = (15/4)²

Area = 225/16

Area = 14¹/16 yd² or 14.0625 yd²

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What are the solutions to the equation?<br> 7x^3=28x
11Alexandr11 [23.1K]

7x³ = 28x is our equation. We want its solutions.

When you have x and different powers, set the whole thing equal to zero.

7x³ = 28x

7x³ - 28x = 0

Now notice there's a common x in both terms. Let's factor it out.

x (7x² - 28) = 0

As 7 is a factor of 7 and 28, it too can be factored out.

x (7) (x² - 4) = 0

We can further factor x² - 4. We want a pair of numbers that multiply to 4 and whose sum is zero. The pairs are 1 and 4, 2 and 2. If we add 2 and -2 we get zero.

x (7) (x - 2) (x + 2) = 0

Now we use the Zero Product Property - if some product multiplies to zero, so do its pieces.

x = 0        -----> so x = 0

7 = 0       -----> no solution

x - 2 = 0   ----> so x = 2   after adding 2 to both sides

x + 2 = 0  ---> so = x - 2  after subtracting 2 to both sides


Thus the solutions are x = 0, x = 2, x = -2.

6 0
2 years ago
If a plane can travel 500 miles per hour with the wind and 400 miles per hour against the wind, find the speed of the wind and t
OLga [1]
Wind speed is 50 mph
8 0
3 years ago
Estimate 5,403 divided by 94​
VLD [36.1K]

Answer:

60

Step-by-step explanation:

7 0
2 years ago
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Nvm no one helped me, answer is 17/25 -.-
geniusboy [140]
The answer is 17/25. Hope this helps! :) I know how you feel! 
3 0
3 years ago
The radius of a circle is 5 inches what ia the area
Crank

Answer:

A = pi * r^2 = pi * 5^2 = 25*pi = 78.54 in²

4 0
3 years ago
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