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tangare [24]
3 years ago
7

Can someone please help me with this question​

Mathematics
1 answer:
bezimeni [28]3 years ago
6 0

Answer:

21x^2-2x+1

Step-by-step explanation:

The area of shaded region= The area of the floor - area of the identical islands

The area of shaded region=(5x+1)^2-2*(2x)(x+3)=25x^2+1+10x-4x^2-12x=21x^2-2x+1

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Which of the following graph represents the equation y-2=3(x-1)​
pshichka [43]

Answer with explanation:

To draw the graph of linear equation of the form

  y-a=m (x-b)

We will first write it in slope intercept form which is of the form

   \frac{x}{a}+\frac{y}{b}=1\\\\\rightarrow y-2=3 \times (x-1)\\\\\rightarrow y-2=3 x-3\\\\\rightarrow 3 x-y=3-2\\\\\rightarrow 3 x-y=1\\\\\rightarrow \frac{x}{\frac{1}{3}}+\frac{y}{-1}=1

It will cut x axis and y axis at , (\frac{1}{3},0) \text{and} (0,1) respectively.

As Euclid postulate States that, Unique equation of line can be Determined by two points,So join these two points.And Infinite number of points lie on a line.

Graph B

6 0
3 years ago
a rectangle has an area of 30 square meters and a perimeter of 34 meters. what are the dimensions of the triangle?
gayaneshka [121]
The dimensions for the rectangle are 15 by 2.

15 times 2 is 30, which is the area.

15+15+2+2= 34 which is the perimeter
5 0
3 years ago
How do you write an equation for....
Ymorist [56]

Answer:

The blank would be 64 and the answer would be 16

Step-by-step explanation:

Because we are looking for 25% of something, we simply multiply .25 by whatever that number is. So we start with

.25 * ________

And then we put the number in

.25 * 64 = 16

7 0
3 years ago
if a student is selected at random find the probability the student is a junior round to the nearest hole percent
Sindrei [870]

Answer:

=4+6+2+2=14

=3+4+6+3=16

=14/16

=7/8

=0.875 answer

Step-by-step explanation:

hope I help !!

5 0
3 years ago
Why does 1.5 x 4.2 equal 6.3? Someone answer please
miskamm [114]

Answer: Look at it this way, you are adding 4.2, .5 times. So if you find what 1.5 is of 4.2 you then add that to 4.2. The 1 stands for how many times the number is being multiplied by. So in this case the number is only being multiplied once. Then we move onto the decimal point which says that the number is being multiplied by .5 times. This means that 2.1 (which is half of 4.2) is being added onto 4.2. Hope this makes sense. I always use a calculator for multiplying so its hard to put the process into words haha.

Step-by-step explanation:

3 0
1 year ago
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