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riadik2000 [5.3K]
3 years ago
10

Can you help I’ll mark brainliest

Mathematics
1 answer:
Marta_Voda [28]3 years ago
6 0

Answer:

7\sqrt{3}

Step-by-step explanation:

Since this is a 30-60-90 triangle, we know that the sides have the following characteristic:

The side opposite to 30 degree angle: n

The side opposite to 60 degree angle: n\sqrt{3}

The side opposite to 90 degree angle: 2n

Since we know that 7 is opposite to 30-degree, and x is opposite to 60 degree, than we know that x = 7\sqrt{3}

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Games at the carnival cost $3 each. The prizes awarded to winners cost $150. How many games must be played to make at
natima [27]

Answer:

219 games.

Step-by-step explanation:

Given the following data;

Cost of each game = $3

Cost of award = $150

Let x = number of games played.

Translating the word problem into an algebraic equation, we have;

3x - 150 \geq $507

<em>Rearranging the equation, we have;</em>

3x \geq 507 + 150

3x \geq 657

<em>Dividing both sides by 3, we have;</em>

x \geq \frac{657}{3}

x \geq 219

<em>Therefore, the number of games to be played in order to make $507 is at least 219 games. </em>

6 0
3 years ago
Lucero wants to hang 3 paintings in her room. The widths of the paintings are 10 1/2 inches, 3 1/2 feet, 2 feet, and 2 3/4 inche
Marina86 [1]

Answer:

  7 ft 1 1/4 in

Step-by-step explanation:

The total width of 3 paintings and 2 spaces is ...

  (10.5 in) + (3 in) + (3 ft 6 in) + (3 in) + (2 ft 2 3/4 in)

  = (10.5 +3 +6 +3 +2.75) in + (3 +2) ft

  = 25.25 in + 5 ft = 1.25 in + 24 in + 5 ft

  = 7 ft 1 1/4 in

The total width of wall space needed for the paintings is 7 feet 1 1/4 inches.

_____

If two more 3-inch spaces are added, one on each end, then the total width is 7 feet 7 1/4 inches. The problem isn't clear about that, saying only that there are spaces between the paintings.

8 0
3 years ago
I would appreciate if someone answered these.
Firlakuza [10]

Answer:

1. no solution

2. any value of x makes the equation true

3. x=1

4. any value of x makes the equation true

Step-by-step explanation: hope that answers your question :)

7 0
2 years ago
How many unit cubes are on each layer of the cube?<br><br> 6<br> 3<br> 12<br> 9
padilas [110]

Answer:

6

Step-by-step explanation:

Remember: Each layer has 6 cubes. Step 3 Count the cubes. cubes Multiply the base and the height to check your answer. So, the volume of Jorge's rectangular prism is cubic centimeters. if wrong very sorry

4 0
3 years ago
17 to 26 <br> Help me please
Pepsi [2]

Answer:

See below

Step-by-step explanation:

17.  17x + 3 x=4              18.  -2x + 1 / 3  x= -5

      17(4) + 3                          - [(2)(-5) + 1] / 3

      68 + 3                              - [-10 + 1] /3

       71                                       9/3  or 3

19.  2x - 33 x=9              20.  - 9x - 2  x=7

      (2)(9) - 33                         -(9)(7) - 2

       18 - 33                               -63 - 2

       - 15                                       -65

21.  7/3x - 9   x=3            22.  - [12x/5]   x= -1

      (7/3)(3) - 9                         - [(12)( -1)/5]

         7 - 9                                - [ -12/5 ]

         -2                                         2.4

23.  11x - 11   x = -11         24.  (2/9)x - (9/2)   x= 9

       - 121 - 11                           (2/9)(9) - (9/2)

         -132                                  2 - (9/2)  ( 2 can be shown as 4/2)

                                                      (4/2) - (9/2)

                                                          - 5/2  or   - 2.5

25.  f(x) = 0.12x + 4.52  x = 250     26.  f(x) = 0.18x + 3.12  x= 175

         = (0.12)(250) + 4.52                           = (0.18)(175) + 3.12

         = 30 + 4.52                                        = 31.50 + 3.12

         =  34.52                                             = 34.62

4 0
3 years ago
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