All categories

3 years ago

What are the solutions of x^2+2x-3=0?

Mathematics

1 answer:

Nikolay [14]3 years ago

4 0

X= 1,-3 If you factor equation you get x-1=0 and x+3=0

You might be interested in

Drag and drop the numbers into the boxes to create an expression that is equivalent to the given expression.

slega [8]

5c + 30 because you use the distributive property 5 x c + 5 x 6

3 0

2 years ago

The rectangular prism shown has a surface area of 488 square inches. What is the length of the prism?

BigorU [14]

Answer:

length of the prism = 244 - (width x height) / width + height)

Step-by-step explanation:

Let length be a and width be b and height be c

2 (a * b) + 2 (b* c) + 2 (a * c) = 488

2ab+ 2bc + 2ac = 488

ab + bc + ac = 244

ab + ac = 244 - ac

a (b + c) = 244-ac

a = 244-bc / b + c

Therefore the length of the prism = 244 - (width x height) / width + height)

8 0

3 years ago

To one-one functions g and h are defined as follows.

Andreyy89

Answer:

9
(x-8)/3
-1

Step-by-step explanation:

The inverse function for a set of ordered pairs can be found by swapping the x- and y-coordinates in each pair.

$g^{-1}(-1)=9\qquad\text{from the $g(x)$ ordered pair $(9, -1)$}$

The inverse of a function expressed algebraically can be found by swapping the x- and y-variables and solving for y.

$h^{-1}(x)\qquad\text{is found from }x=h(y)\\\\x=3y+8\\x-8=3y\\\\y=\dfrac{x-8}{3}\\\\\boxed{h^{-1}(x)=\dfrac{x-8}{3}}$

A function of its own inverse returns the original value:

$\boxed{\left(h\circ h^{-1}\right)(-1)=-1}$

6 0

3 years ago

Pls I need help not the best at this.

Mazyrski [523]

Answer:

Step-by-step explanation:

because I did the math and had my mom check it :)

7 0

3 years ago

4/5 to a decimal using an equivalent fraction

Paul [167]

8/10 is equivalent to 4/5.
So now do 8÷10=0.8

4/5 also equals to 0.8
just do 4/5=0.8

8 0

3 years ago