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Xelga [282]
3 years ago
10

Factorise the followingx^2+2x-8​

Mathematics
1 answer:
ioda3 years ago
7 0

Answer:

{x}^{2}  + 2x - 8 \\  {x}^{2}  + 4x - 2x - 8 \\ x(x + 4) - 2(x + 4) \\  = (x + 4)(x - 2)

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We need the graph!!!!!!!
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3 years ago
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(PLEASEE HELPP 24 points)Regina’s work to find the surface area of a square pyramid from its net is shown below. A square pyrami
Fantom [35]

Answer:

She should have used One-half (9.4) (11.9) to represent the area of a single triangle

Step-by-step explanation:

The pyramid is composed by 4 triangles and 1 square

area of the square: base² = 9.4²

area of each triangle = 1/2*base*height = 1/2*9.4*11.9

surface area of the pyramid = 4*area of each triangle + area of the square = 4*(1/2*9.4*11.9) + 9.4²

8 0
3 years ago
4. What affects the size of an angle? A. Its location B. The amount of rotation of one side C. The length of its sides D. The nu
earnstyle [38]
The correct answer is
<span>D. The number of degrees in its supplement

The size of the sides and the rotation is irrelevant and would still keep the angle having the same size. The number of degrees in the supplement decides how big an angle is because the larger the supplementary angle the smaller the angle we're observing will be, and vice versa.</span>
7 0
3 years ago
Don’t understand please help asap
IceJOKER [234]

First you have to solve both inequalities,

3x-1>8

3x>9

x>3

and the other one

2x≤4

x≤2

then you graph each one on the number line

the graph says or, so the solution can satisfy either equation

the solution would be all real numbers except three

the way to write it is x≠3

3 0
3 years ago
what is the slope of the line that passes through the points (-3,1) and( 7,-14)? write your answer in simplest from.
Harrizon [31]

Answer:

slope = m = (0--3)/(14--4) = 3/18 = 1/6

y=mx + b

y =(1/6)x + b

0= (1/6)14 + b

b = - 14/6 = - 7/3

y = (1/6)x - 7/3

or

6y-x = -14

Step-by-step explanation:

3 0
3 years ago
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