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never [62]
3 years ago
9

I need help I don’t know what the answer is

Mathematics
1 answer:
Mamont248 [21]3 years ago
3 0
The answer is: $2.50 + $1.25
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How do i simplify 7(1+6x)
otez555 [7]

Answer:

7+42x

Step-by-step explanation:

7(1+6x)

Distribute

7*1 + 7*6x

7+42x

4 0
4 years ago
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Thomas received $200.00 for his birthday. He worked building cabinets for 3 days and made $48.75 per day. Then he bought a new d
Setler79 [48]

Answer:

76.55

Step-by-step explanation:

To see how much Thomas has you have to do 200.00 + 48.75 x 3 = 146.25 - 69.70 = 76.55

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3 years ago
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If y=sin2x+cos2x then dy/dx​
alukav5142 [94]

2(cos2x - sin2x)

Step-by-step explanation:

Y = sin2x + cos2x

Differentiate wrt x

dy/dx = cos2x . 2 - sin2x . 2

= 2(cos2x - sin2x)

8 0
3 years ago
Hey Please help me x
svp [43]

Answer:

x = 20

Step-by-step explanation:

4x and 5x are same- side interior angles and sum to 180° , then

4x + 5x = 180

9x = 180 ( divide both sides by 9 )

x = 20

3 0
3 years ago
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A composite figure is formed by combining a square and a triangle. Its total area is 52.5 ft. The area of the
otez555 [7]

The length of each side of the square is 3 ft.

<u>Step-by-step explanation:</u>

We have , A composite figure is formed by combining a square and a triangle. Its total area is 52.5 ft. The area of the  triangle is 43.5 ft . We know that area of a square = length^{2} . According to question:

area of square = length^{2}

area of triangle = 43.5 ft

total area = 52.5 ft.

Total area = area(square+triangle)

⇒ 43.5 + (Length)^{2} = 52.5

⇒ (Length)^{2} = 52.5- 43.5

⇒ (Length)^{2} = 9

⇒ (Length) = \sqrt{9}

⇒ Length= 3

Therefore, the length of each side of the square is 3 ft.

3 0
3 years ago
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