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aivan3 [116]
3 years ago
5

First determine if the given is a ordered pair (-1.7): 4x + y = 3. 2x-y=3​

Mathematics
1 answer:
Mrrafil [7]3 years ago
4 0

Answer:

i didnt mean to click on this and it wont let me exit out im sorry

Step-by-step explanation:

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Solve this step by step using the quadratic function <br> y=x^2 +x+2
Ne4ueva [31]

Answer:

x=<u>+</u>\frac{\sqrt{4y-7}-1 }{2}

Step-by-step explanation:

Quadratic function =( -b<u>+</u>\sqrt{b^2+4ac}  )/2a

x^2+x+2-y=0

x=-1<u>+</u>\sqrt{1^2-4(2-y)} /2

x=-1<u>+</u>\sqrt{4y-7} /2

x=<u>+</u> \frac{\sqrt{4y-7}-1 }{2}

Pretty sure this is right. Would appreciate a brainliest

3 0
2 years ago
The length of a regulation soccer field is 110 meters. The diagonal length of the same soccer field is about 133.14 meters. Abou
dexar [7]

Answer:

D

Step-by-step explanation:

Imagine this as a right angle triangle, where the diagonal length is the hypotenuse, the length is one side, and the width is the other.

We can therefore use Pythagoras' Theorem (or Pythagorean Theorem) to solve. The formula for this is a²+b²=c², where c is the hypotenuse, and a and b are the sides.

We can input the values we know to this formula to get the width. This gives 110²+b²=133.14² or 12100+b²=17 726.2596.

From there subtracting 12100 from both sides gives b²=5626.2596.

Square rooting b isolates it, leaving b=75.0083969.

Since the value of the diagonal was approximate, this can be assumed the b is 75m.

**This content involves Pythagoras' Theorem/Pythagorean Theorem, which you may wish to revise. I'm always happy to help!

8 0
3 years ago
Which of the following is an even function?
nika2105 [10]

Answer:

An even function is:

f(x) = 7

Step-by-step explanation:

An even function accomplish the following condition:

f(x)=f(-x) (1)

Applying (1), we have:

  • f(x)= (x-1)^2 \neq f(-x) \neq (-x-1)^2
  • f(x)= 8x \neq f(-x) \neq -8x
  • f(x)= x^2 -x \neq  f(-x) \neq (-x)^2 +x
  • f(x)=7 = f(-x)= 7

The last one is even.

3 0
3 years ago
What is the point of intersection when the system of equations below is graphed on the coordinate plane?
olya-2409 [2.1K]

Answer:

I.M.S. infinite many solutions

Step-by-step explanation:

this will come out to be the same line.

6 0
3 years ago
Please tell me the surface area of the composite figure. dont send a virus pls
barxatty [35]

do you want an explanation too or just the answer anyway here's the answer 488

7 0
2 years ago
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