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VashaNatasha [74]
2 years ago
5

Please help, will give brainliest! :)

Mathematics
1 answer:
Sedbober [7]2 years ago
6 0

Answer:

(2,2) , (0,0), (5,3)

Step-by-step explanation:

To check which points are solution to the system of inequalities, substitute the value of those points in the two inequalities and make sure are both true.

y ≤ x

y > -x +1

Point (x=2, y=2)

2 ≤ 2 ✅

2 > -2 +1 ⇒ 2 > -1 ✅

Because both inequalities are true using the coordinates of this point then the point IS a solution to the system of inequalities.

Point (x= -2, y=2)

2 ≤ -2 ❌

We stop checking because we need both inequalities to work. This point IS NOT a solution.  

Point (x=0, y=0)

0 ≤ 0 ✅

0 > -0 +1 ⇒ 2 > 1 ✅

This point IS a solution.

Point (x=0, y=5)

5 ≤ 2 ❌

This point IS NOT a solution.

Point (x=2, y= -2)

-2 ≤ 2 ✅

-2 > -2 +1 ⇒ -2 > -1 ❌

This point IS NOT a solution.

Point (x=5, y=3)

3 ≤ 5 ✅

3 > -5 +1 ⇒ 3 > -4 ✅

This point IS a solution.

Point (x=4, y= -3)

-3 ≤ 4 ✅

-3 > -4 +1 ⇒ -3 > -3 ❌

This point IS NOT a solution.

Point (x=-2, y=-2)

-2 ≤ -2 ✅

-2 > - -2 +1 ⇒ -2 > 2+1 ⇒ -2 >3 ❌

This point IS NOT a solution.

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Firlakuza [10]

Answer:

Step-by-step explanation:

Ok so the formula for a circle is

A=πr2

The diameter of the semicircle is 15, so if you divide that by 2 you will get a radius of 7.5. Then, the next part of the formula is to square the radius, and to do that you need to multiply the radius by itself. You will then get an answer of 56.25. And then finally, you multiply 56.25 by pi, which is 3.14 and get 176.625. Then for the quarter circle, you have 2 side lengths of 15 feet. To find the area of the quarter circle, do pi times the radius(15), and square the answer. Then, divide the answer by 4 to get the quotient, 554.6025. 176.25 + 554.6025 is 730.8525 . That rounded to the nearest 100th is 730.85.

I really hope this helped and I'm sorry if it is incorrect.

5 0
3 years ago
In parallelogram ABCD above, AE =2x+4 and AC=6x. What is the length of CE?
lawyer [7]

Answer:

4-4x

Step-by-step explanation:

From the parallelogram

CE = CA+AE

Since CA = -AC

CE = -AC+AE

GIVEN

AC = 6x

AE= 2x+4

Substitute

CE = -6x+2x+4.

CE = -4x+4

Gene the length of CE is 4-4x

4 0
2 years ago
Which shows the factored form of x2 – 12x – 45? (x 3)(x – 15) (x – 3)(x – 15) (x 3)(x 15) (x – 3)(x 15).
Aleksandr [31]

The factors of the quadratic equation are (x+3) and (x-15).

<h2 /><h2>Given to us</h2>
  • x^2-12x-45\\

<h3>To find</h3>

The factors of x^2-12x-45\\.

<h3 /><h3>Solution</h3>

x^2-12x-45\\

As we can see in the quadratic equation the value of ac is -45x². therefore, we need to divide -12x into two parts such that their sum must give -12x and their product gives us -45x².

therefore, dividing -12x into -15x and 3x,

x^2-15x+3x-45\\

Taking common out,

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Hence, the factors of the quadratic equation are (x+3) and (x-15).

Learn more about quadratic equations:

brainly.com/question/2263981

3 0
2 years ago
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Answer:

D : 10ab√2a+20a√2a

Step-by-step explanation:

5 0
3 years ago
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Answer:

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30 is the ans

3 0
2 years ago
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