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Citrus2011 [14]
3 years ago
9

Find the value of x how do you do this . Pls help

Mathematics
2 answers:
Whitepunk [10]3 years ago
7 0
The answer is 14 because 15 x 8 divided by 12 is 10, so 14-10 is 4. to double check you would do 14- 4 which is 10
Natali [406]3 years ago
5 0
12/15=8/(x-4)
12(x-4)=8(12)
12x-48=96
12x=144
x=12
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Create the Subset and Proper Subset of the set A= {1,2,3,4}. Upload your work.
kozerog [31]

The subset of A is B = {1, 2} and the proper subset of A is C = {1,2,3,4}

<h3>How to create the Subset and Proper Subset of the set?</h3>

The set is given as:

A = {1,2,3,4}

Subsets of a set are sets that can be found in another set

An instance of this is

B = {1, 2}

Because all the elements of set B are in set A

Proper subsets of a set are sets that contain the exact elements found in another set

An instance of this is

C = {1,2,3,4}

Because set C and set A have the same elements

Read more about subsets at:

brainly.com/question/6948738

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7 0
1 year ago
Can someone help me with this please?
irakobra [83]

Answer:

b. 28.1

Step-by-step explanation:

By the property of intersecting secant and tangent out side of the circle.

20 \times (20 + x) =  {31}^{2}  \\ 20(20 + x) = 961 \\ 20 + x =  \frac{961}{20}  \\ 20 + x = 48.05 \\ x = 48.05 - 20 \\ x = 28.05 \\ \huge \red{ \boxed{ x = 28.1}}

3 0
4 years ago
Answer choice D.) is DE/DF <br> Please help, serious answers
Elis [28]
Ef/df
is completely correct
7 0
4 years ago
The sum of the areas of two square plots of land is 2650 m^2 and the difference of their areas is 1400 m^2. Find the length of a
Sav [38]

Answer:

The length of one plot is 45m & the other length is 25m

Step-by-step explanation:

Let length one sq. plot = x length other sq. plot = y

area of square = length²

x² + y² = 2650 -----(1)

x² - y² = 1400 ------(2)

(1)+(2)

2x² = 4050

x² = 2025

x = 45

subx²=2025into(1)

2025 + y² = 2650

y² = 625

y = 25

6 0
4 years ago
Someone please help me on this question ?:)
katrin2010 [14]

Answer: The TV is 48 inches wide.

Step-by-step explanation: To find the solution to this equation we must use the Pythagorean theorem. The Py. Theo. is basically the formula :

a^2 + b^2 = c^2    You say this as "A squared plus b squared equals c squared"

To use this formula you must plug in the given values of a and b, to find c. A and b represent the two bases of the triangle, while c is the hypotenuse. In this equation we already have the value of c and a. We need to find b, but in order to do that we use a different formula. We use : c^2 - a^2 = b^2

See :

52^2 - 20^2 = b^2       *The ^2 means "to the power of" aka an exponent*

2704 - 400 = b^2     *When dealing with ^2, all you do is multiply the number by itself*

2304 = b^2      *Next, we find the square root of our current number.*

48 = b    

*Another way to solve this equation is to memorize all the Pythagorean Triples. With that knowledge, you wont even need to use the formula because you will already know all three values. I hope this helped you understand :)



3 0
4 years ago
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