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Free_Kalibri [48]
2 years ago
8

Solve the equation for all values of x. (x + 3)(72 – 9) = 0

Mathematics
2 answers:
Alenkasestr [34]2 years ago
7 0

Answer:

x has to be -3 for the answer to be 0

Step-by-step explanation:

N76 [4]2 years ago
4 0

Answer:

x = -3

Step-by-step explanation:

(x + 3)(72 – 9) = 0

(x + 3)(63) = 0

63x + 189 = 0

63x = -189

x = -3

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n^2+8n+16

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(n+4)^2

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=n^2+8n+16

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Which is a true stament?
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2nd one: 2 rectangles can have thr same area but have different perimeters.
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the length of a rectangle exceeds its width by 17 inches, and the area is 18 square inches. what are the length and width of the
dimaraw [331]

The length and width of the rectangle are 18 in and 1 in, respectively.

<h3>Quadrilaterals</h3>

There are different types of quadrilaterals, for example, square, rectangle, rhombus, trapezoid, and parallelogram.  Each type is defined accordingly to its length of sides and angles. For example, in a rectangle,  the opposite sides are equal and parallel and their interior angles are equal to 90°.

The area of a rectangle can be found for the formula : b*h, where b = base and h =height.

For this question, the length exceeds its width by 17 inches - L=W+17. Here, the length is the base and the width is the height. Thus,  from the value of area given, you can find the values of the length and width of the rectangle.

A=b*h

18=(W+17)*W

18=W²+17W

W²+17W-18=0

Solving this quadratic equation, you have:

w_{1,\:2}=\frac{-17\pm \sqrt{17^2-4\cdot \:1\cdot \left(-18\right)}}{2\cdot \:1}

w_{1,\:2}=\frac{-17\pm \:19}{2\cdot \:1}

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For dimensions, only positive numbers must be used. Then, the width is equal to 1 inch.

As, the area (l*w) is 18 in², see.

18=l*w

18=l*1

l=18 in

Read more about the area of rectangle here:

brainly.com/question/25292087

#SPJ1

5 0
1 year ago
What is the difference between the smallest six-digit whole number and the greatest 4-digit number
spin [16.1K]
What's the smallest six-digit whole number possible?
It is 100000

try counting, six digits, right? if you even take 1 off from it, it's no longer six digits, so it is the smallest six-digit whole number possible.

what's the greatest 4-digit number?
It should be 9999
try adding 1 to it, it becomes five-digit number.

So, 9999 is the greatest 4-digit whole number possible.

To get a difference, subtraction.
100000 - 9999 = 90001


Just as a tip, for six digit number, 000000 does not work, as it is same as 0

8 0
3 years ago
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