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hodyreva [135]
3 years ago
5

Please help me with this! Show work if possible

Mathematics
1 answer:
photoshop1234 [79]3 years ago
6 0

Answer:

True

Step-by-step explanation:

Suppose you have a quadratic function

ax ^ 2 + bx + c = 0

Factoring this expression results in:

ax ^ 2 + bx + c = (x-h) (x-k) = 0

Where h and k are real numbers.

Then the function is equal to 0 when x = h and when k = 0.

Therefore h and k will always be the solutions when we have the quadratic function factored in the form

(x-h)(x-k) = 0

Since we have ensured that the factors of the function contain only real numbers, then h and k are real numbers, and x and y must also be real numbers. Therefore solutions to an equation in this form will always be real solutions.

The statement is true

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The set of points (1, 1), (2, 2), (3, 3) is collinear.
Pani-rosa [81]

Answer:

the answer will be True

Step-by-step explanation:

as the points match up to form a prefect straight line

3 0
3 years ago
Write an expression for the area of the shaded region in its simplest form. Show all of your steps.
patriot [66]
The area of the shaded region will be the area of the rectangle minus the area of the white square inside of it:

((x+10)(2x+5)) - ((x+1)(x+1))

First, FOIL both of the areas separately:

(2x^2 + 5x + 20x + 50) - (x^2 + x + x + 1)

Simplify within the parentheses by adding like terms:

(2x^2 + 25x + 50) - (x^2 + 2x + 1)

Now, subtract one equation from the other:

2x^2 + 25x + 50
-x^2  -    2x  -   1
= x^2 + 23x + 49

This will be the equation for the area.
3 0
3 years ago
15
Crank

Answer:

1/2

Step-by-step explanation:

6/12 = x/16

7 0
2 years ago
Kara has 21 collectible buttons to sell. She sells the small buttons for $3 and the large buttons for $4, and earns a total of $
Serga [27]
We know that there are 21 buttons total. x is the number of small buttons and y is the number of large buttons. 

Therefore, our first equation should be x+y = 21.

We know the small buttons sell for 3 dollars, meaning 3x represents how much is made from the small buttons. The larger buttons sell for 4 dollars, meaning 4y is how much is made from the large buttons. 

We also know that the total of the buttons sold is 68 dollars. Therefore 3x + 4y = 68 is our second equation.

From this information, the answer is the first set.

5 0
3 years ago
Find the area of the shaded region.
Katarina [22]

Answer:

4.6 meter

Step-by-step explanation:

sana makatulong

6 0
3 years ago
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