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GREYUIT [131]
4 years ago
11

I don’t get it mind helping

Mathematics
1 answer:
zhuklara [117]4 years ago
4 0

Based on the picture, we can say that ∠FDE and ∠EDC are supplementary angles, meaning they add to 180°. Thus, we can sum up the measues of those angles to 180 and solve for x:

(x - 7) + (2x+ 1) = 180

  • Set up

3x - 6 = 180

  • Combine like terms

3x =186

  • Add 6 to both sides of the equation

x = 62

  • Divide both sides of the equation by 3

We have now found that x = 62. However, we are looking to find ∠ADC, which doesn't have any indication of measurement. However, we can see that ∠ADC and ∠FDE are vertical angles, meaning that they have the same measurement. Let's use the fact that x = 62 to find ∠FDE first.

\angle FDE = (x - 7)^{\circ} = (62 - 7)^{\circ} = 55^{\circ}


We have found that ∠FDE is 55°. Thus, the measure of ∠ADC is 55°.

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$12 per 45 minutes is how much per hour? (I will give brainliest to the first person that answers)
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Answer:

16 per hour

Step-by-step explanation:

12/45         x/60 cross multiply

45x=720 divide by 45 from each side

x=16

8 0
2 years ago
A number line shows the whole numbers from 0 to 10 describe where you would plot square root 30
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2 years ago
A straight slide in a playground design makes an isosceles triangle with the
julia-pushkina [17]

Answer:

Option D.

Step-by-step explanation:

  • First, the you need ti understand that the triangle is an isosceles right angled triangle. In other words, the base and height are equal in length. The third side is the slide. This is the longest side.
  • Next, we know that the formula for calculating the area of a right angled triangle is given by:

        A = 1/2 (base × perpendicular height)

  • The perpendicular height is equal to the base. Let's say the base is <em>x</em>. It means that the height is also x, since height = base.
  • Therefore, the formula will be:

       A = 1/2 (x.x)

           =1/2 (x²)

      32 = 1/2 (x²)

     Multiplying both sides by 2 gives:

     32×2 = x²

     64  = x²

       8   = x

To find the third side, we use the Pythagoras theorem:

    C² = A² + B²

         = 8² + 8²

         = 128

   C = √128

       = 8√2

However, the answer will not be exact, so we  multiply the length of the base and height by 2. This gives x = 16 (Length of base = length of height)

Repeating the steps above gives C = √ (16)² + (16)²

                                                           = √256

This corresponds to option D.

3 0
3 years ago
5y-21=14<br><br>please help me I need the full method ​
SSSSS [86.1K]

5y-21=14

or, 5y = 14+21

or, 5y = 35

or, y = 35/5 = 7

Answer is 7.

7 0
3 years ago
please help me!!!!!!!!!!!!!
yKpoI14uk [10]
Let x be the length of each row.
Denver can plant 3 rows of a certain length with 2 seedlings leftover.
Total number of seeds he has = 3x+2 Denver can plant 4 rows of the same length with 3 seedling spots left empty.
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Isolate variable terms: 2+3=4x-3
Answer= 5=X
5 0
3 years ago
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