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Law Incorporation [45]
3 years ago
13

Help? quadratic functions

Mathematics
1 answer:
Masteriza [31]3 years ago
6 0
Quadratic functions are squared so every equation that has been squared is a correct answer.
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Could someone please help me out? I've tried to solve this but I'm really having some trouble with it. Please try to explain it
guajiro [1.7K]

To find the area of the shaded region you need find the area of the shaded region and subtract the area of the unshaded region.

Area of a rectangle = width x length

A = (x + 10) x (2x + 5)

Next apply FOIL or First Outer Inner Last

A = (x * 2x) (x * 5) (10 * 2x) (10 * 5)

A= 2x2 + 5x + 20x + 50

A= 2x2 +25x +50

 

Area of a square=  sides2

A= (x + 1)2

A= (x+1) (x+1)

Next apply FOIL or First Outer Inner Last

A = (x *x) (1*x) (1*x) (1*1)

A = x2 + 1x + 1x +1

A= x2 + 2x +1

 

A= 2x2 +25x +50 - 2x2 +25x +50

A= 50x + 100





4 0
3 years ago
What percent of 55 is 34
djyliett [7]

answer

.618 18 repeats

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Jonathan goes to the store and purchases 3 pencils for 0.28 each, and y number of erasers for 0.38 each. Write an expression tha
laiz [17]

Keywords


linear equation, variables


Step 1


Define the variables


Let


x-----> number of erasers


y-----> total cost


we know that




 ------> this is the linear equation that represent the situation


therefore


the answer is y = 0.84 + (0.38)x



5 0
4 years ago
Read 2 more answers
How do you divide 4/3 by 1.5
bixtya [17]

Answer:

0.9

Step-by-step explanation:

4/3 by 1.5

to divide 4/3, we have to convert it to decimal too

so 4/3 = 1.333 repeatedly

4/3 by 1.5=1.333/1.5

0.8886

0.9 approximately

3 0
3 years ago
Read 2 more answers
The right end of this board lines up with the marks halfway between 4 and 5 (Iready) How long is the board?
cupoosta [38]

Answer:

Halfway = 4.5

Step-by-step explanation:

Given

4 and 5

Required

Determine the halfway

This is calculated as:

Halfway = \frac{1}{2}(4 + 5)

Halfway = \frac{1}{2}(9)

Remove bracket

Halfway = \frac{1}{2} * 9

Halfway = 4.5

5 0
3 years ago
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