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daser333 [38]
3 years ago
9

In geometry the four sides of a square are all the same length. one side measures (3x+4) and the perimeter of the square is 76.

what is the value of X
Mathematics
1 answer:
olganol [36]3 years ago
4 0

To find the perimeter of a square you would multiply the length of one side by 4, so you would now have:

(3x+4) * 4 = 76

Divide both sides by 4:

3x +4 = 19

Subtract 4 from both sides:

3x = 15

Divide both sides by 3:

x = 5

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18-(4x+3y) if x = -5 and y = 3
zaharov [31]

Answer:

this is your answer

I hope it helps you

,:-))

5 0
3 years ago
What is the approximate surface area of a sphere with a circumference of 37.68
sergij07 [2.7K]
We must find the radius so we can plug this into the formula for surface area. 

Circumference = 2 \pi r
37.68 = 2 \pi r \\ r = 37.68/2 \pi

We are going to plug this in as our radius for the most accurate answer. 

The surface area of a sphere is 4 \pi  r^{2}

Surface Area = 4 \pi  ( \frac{37.68}{2 \pi }) ^{2} ≈ 451.93 units
6 0
3 years ago
I need help :( i don't understand this
maria [59]
Answer: 116.93ft^2




Explanation: find the area of the circle
A= pi•r^2
A=(3.14)•1.5^2= 7.07

Then find the area of the rectangle
A=L•W
A=15.5•8=124

Then do 124-7.07=116.93

You have to subtract the area of the circle from the area of the rectangle because the circle is not shaded in
4 0
3 years ago
Graph the system by using technology. What is the y-coordinate of the solution?
son4ous [18]
Take second equation here, 
2x + 9 = -12
2x = -12 - 9
2x = -21
Multiply by 2, 
4x = -42

Now, substitute the vaue of 4x in 1st equation, 
-42 - y = 2
-y = 2 + 42
y = -44

In short, Your Answer would be -44

Hope this helps!
3 0
4 years ago
What is 70/10 equivalent fraction?
kaheart [24]
The answer is 7 because 70 ÷ 10 = 7.
6 0
3 years ago
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