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kondor19780726 [428]
3 years ago
7

Determine the digits of Y from these clues.

Mathematics
2 answers:
azamat3 years ago
5 0
The last one- its the only one that applies to the 4* rule.
irina [24]3 years ago
5 0

862 would be the anwser

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How many inches are equivalent to 74 feet 3 inches
Ira Lisetskai [31]

Answer:

891 inches

Step-by-step explanation:

74 x 12 = 888

888 + 3 = 891

7 0
3 years ago
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What is the answer to this I really need the answer for my test 8/9+2/3+1/6
ElenaW [278]
The all go over 18 so put them all over 18
16/18+12/18+3/18=31/18

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A piece of cardboard has the dimensions (x + 15) inches by (x) inches with the area of 60 in 2 . Write the quadratic equation th
pochemuha

Answer:

x^2 + 15x - 60 = 0

The actual dimension is 18.28 by 3.28

Step-by-step explanation:

Given

Dimension:

(x + 15)\ by\ x

Area = 60in^2

Required

Determine the quadratic equation and get the possible values of x

Solving (a): Quadratic Equation.

The cardboard is rectangular in shape.

Hence, Area is calculated as thus:

Area = Length * Width

60= (x + 15) * x

Open Bracket

60= x^2 + 15x

Subtract 60 from both sides

x^2 + 15x - 60 = 0

<em>Hence, the above represents the quadratic equation</em>

Solving (b): The actual dimension

First, we need to solve for x

This can be solved using quadratic formula:

x = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}

Where

a = 1

b = 15

c = -60

So:

x = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}

x = \frac{-15 \± \sqrt{15^2 - 4*1*-60}}{2*1}

x = \frac{-15 \± \sqrt{225 + 240}}{2}

x = \frac{-15 \± \sqrt{465}}{2}

x = \frac{-15 \± \21.56}{2}

Split:

x = \frac{-15 + 21.56}{2} or x = \frac{-15 - 21.56}{2}

x = \frac{6.56}{2} or x = \frac{-36.36}{2}

x = 3.28 or x = -18.18

But length can't be negative;

So:

x = 3.28

The actual dimensions: (x + 15)\ by\ x is

Length =3.28 +15

Length =18.28

Width = x

Width =3.28

<em>The actual dimension is 18.28 by 3.28</em>

3 0
3 years ago
Needdd helppp pleasseeee
loris [4]

Answer:

the answer would be 1.474166814×10

5 0
3 years ago
Solve the equation and identify the number of solutions.<br> -x + 7 = 7 + 2x – 3x
vagabundo [1.1K]
X=x . infinite number of solutjons
5 0
3 years ago
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