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nevsk [136]
2 years ago
15

A rectangle has an area 12cm². If the length of the rectangle is ( x + 1 )cm and the width is x cm, find the possible value(s) o

f x . Show the working please thank you
Mathematics
2 answers:
Komok [63]2 years ago
5 0
X can be 3 because:
(3+1)(3)=(4)(3)=12
I believe that is the only possible value for x.
Good luck to you!
dimaraw [331]2 years ago
5 0

Answer:

x can be 3 or (-4) because

area of a rectangle= length × breadth

12=x×(x+1)

12=x^2+x

x^2+x-12=0

x^2 +4x-3x-12=0

x(x+4)- 3(x+4)=0

(x+4)(x-3)=0

(x+4)=0 or (x-3)=0

Therefore, x=(-4) or 3

Since, the dimensions of a rectangle cannot be negative, x=3.

Therefore, the width of a rectangle(x)=3 cm,

the length of a rectangle(x+1)=(3+1)=4 cm

Pls mark me as the brainliest.

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How many triangles are formed by the angles and sides-unique triangle, no triangle, or many triangle
kirill115 [55]

No triangle formed

Solution:

Given data:

One angle is 45°

Another angle is 108°

One side is 7 cm

To find how many triangles are formed for the given data.

Let the unknown side of a triangle be x°.

Sum of all the sides of a triangle = 180°

45° + 108° + x° = 180°

⇒ x° = 180° – 45° – 108°

⇒ x° = 27°

There is no such angle can be formed with 27° in the given image.

Hence there is no triangle can be formed.

3 0
3 years ago
The sum of two rational numbers is -8 1/4. if one of the numbers is -5 2/3, find the other number. im too lazy to do this
Nataly [62]

Answer:

Step-by-step explanation:

let : x and t this numbers : x +y = -81/4

                                            y == -52/3

x + (-52/3) = -81/4

x = -81/4 + 52/3........continue

4 0
3 years ago
Please help I have tried over and over and can't get it​
nirvana33 [79]
1) -3
2) 6
3) 4
4) 2
5) 5
6) 5
7) 7
8) -3
9) 9
10) 6
11) -5
12) 0

Here are your answers may I please have the brainliest
5 0
2 years ago
9(3+c+4) use distributive property to simplify the expression
azamat

9(3+c+4)

9(7+c)

9(7)+9c

Answer:

63+9c

6 0
3 years ago
Read 2 more answers
Solve x^2-8x+41=0 for X
andrezito [222]
You get imaginary roots for this equation. 

x=4-5i
x=4+5i


7 0
3 years ago
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