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Murljashka [212]
3 years ago
9

I get stuck whit these I don’t get how to do them

Mathematics
1 answer:
ZanzabumX [31]3 years ago
5 0
The solution to the equations is where the graphs of the two functions intersect. We can't trust the graph because it's not clear. We have to solve the system of inequalities. Let's solve for x in the first equation:
y \leq 2x-2
y +2 \leq 2x
\frac{y+2}{2} = x

Plug that into the second equation for x:
y \leq ( \frac{y+2}{2})^2-3(\frac{y+2}{2})
\frac{y^2+4y+4}{4}- \frac{3y-2}{2} = \frac{y^2+4y+4}{4}- \frac{6y-4}{4}
y \leq\frac{y^2-2y}{4} 
0 \leq y^2-2y-4y
0 \leq y(y-6)
6 \leq y

Now, plug this back into the first equation to solve for x:
6 \leq 2x-2
8 \leq 2x
4 \leq x

So, the solution to that system is (4, 6) which looks like the D.

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What are the coordinates of point B in the diagram?
Andrej [43]
Let the cordinates of B be (x, y), then
(3(1) + x)/4 = 1.75 and (3(5) + y)/4 = 2.5
3 + x = 7 and 15 + y = 10
x = 7 - 3 and y = 10 - 15
x = 4 and y = -5

Therefore, the coordinate of B is (4, -5)
8 0
3 years ago
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What is the area of the figure?
nirvana33 [79]

We can break it into two parts.

-> First, the rectangle on the bottom is made up of 2 feet x 16 feet. The formula for area of a rectangle is length times width, so in this case it is equal to 32 feet

-> Next, the triangle has sides of 10 feet, 10 feet, and 16 feet. We can calculate that the height is 6. The formula for area of a triangle is base times height divided by two, so, \frac{16*6}{2}= \frac{96}{2} = 48 feet

-> Last, we can add the two totals together. 32 feet + 48 feet = 80 feet giving us our final answer of 80 feet². As this answer is not pictured I am going to assume they are not including Heron's formula or other more complex formulas, leading us to the answer of "can't be determined"

Answer:

O can't be determined

Have a nice day! - <em>Note: It depends on the level of your math class for whether the answer "cannot be determined" is correct as it can be determined, just takes more effort than simple one - two-step formulas.</em>

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

     ★ Also please leave the rating you think I deserve (It helps other users as well as myself)

- Heather

5 0
2 years ago
Which product is greater than 3/4?
kenny6666 [7]

Answer:

first one

Step-by-step explanation:

all the others are lower than 3/4 or .75

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Max is reading a book. He has already read 1/4 of the book. If he stopped at the top of page 67, how many pages are there in the
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Let p represent # of pages in the book.


Then (1/4)p = 67. Solve for p by mult. both sides of this equation by 4:


p = 268 (pages)

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f(x) = { 0.5,   x < 3
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The point (2, 12) represents the wage increase of x < 12
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