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gtnhenbr [62]
3 years ago
14

Help me with this problem pleas

Mathematics
2 answers:
Marizza181 [45]3 years ago
5 0
The answer is B Q=15
fiasKO [112]3 years ago
4 0
3q+5+2q-5=65
3q+2q+5-5=65
5q+0=65
5q=65
divide both sides by 5
q=13

D is answer
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A square has a side that is (x-3) units long. If the area of the square is 126.5625 sq units, what is the value of x?
Kitty [74]

Answer:

14.25 units

Step-by-step explanation:

Area of a square= l*b= (x-3)(x-3)=x^{2}-3x-3x+9=x^{2}-6x+9

x^{2}-6x+9=126.5625

x^{2}-6x-117.5625

Solving the equation using quadratic equation then as attached

x=14.25 units

To prove

x-3=14.25-3= 11.25 units

area=11.25*11.25=126.5625 sq units

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Answer:

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Step-by-step explanation:

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a box contains 5 plain pencils and 5 pens. a second box contains 7 color pencils and 5 crayons. one item from each box is chosen
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First box: \dfrac{pen}{total}=\dfrac{5}{10}=\dfrac{1}{2}

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Multiply them:

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The probabilityis \dfrac{5}{24}
5 0
3 years ago
The drawing plan for an art studio shows a rectangle that is 19.2 inches by 8 inches. The scale in the plan is 4 in.: 5 ft. Find
Svetradugi [14.3K]
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andriy [413]

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Step-by-step explanation:

1.4 × 10^{-8} = \frac{1.4}{10^8 = 100000000} = 0.000000014

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2 years ago
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