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Olegator [25]
3 years ago
10

HELP PLEASE I NEED IT ASAP IT WILL MEAN A LOT TO ME!! PLEASE

Mathematics
2 answers:
adoni [48]3 years ago
5 0

Answer:

1: x=3\sqrt{8+y^{2} } and the same, but its -3 instead of 3

2: x=9-3y

jekas [21]3 years ago
4 0

Answer:

2 one x=9−3y

1 one I don't know

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Evaluate the expression (- n) ^ (n + n) + n ^ (n - n) , when n = 2
sladkih [1.3K]

Answer:

17

Step-by-step explanation:

Substitute the value of the variable and simplify.

(-(2))^{(2+2)} +2^{(2-2)}

-2x^{2+2} =2^{4} = 16

2^{2-2} =2^{0}

Anything raised to the power of 0 is one.

16 + 1 = 17

5 0
3 years ago
Y is 9 times as many as 4.
Sergio [31]

Answer:

36

Step-by-step explanation:

Basically it is = 9 x 4

Multiply the numbers

= 9 ⋅ 4

= 36

Solution = 36

aka

y = 36

6 0
2 years ago
the slope of a line passing through h (-2, 5) is -3/4. Which ordered pair represents a point on this line? ​
rosijanka [135]

Answer:

A

Step-by-step explanation:

Calculate the slope of the given points with the point (- 2,  5 )

If the slope is - \frac{3}{4} then the point is on the line

Calculate slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 2, 5) and (x₂, y₂ ) = (6, - 1)

m = \frac{-1-5}{6+2} = \frac{-6}{8} = - \frac{3}{4} ← point (6, - 1) is on the line

Repeat with (x₁, y₁ ) = (- 2, 5 ) and (x₂, y₂ ) = (2, 8)

m = \frac{8-5}{2+2} = \frac{3}{4} ← point (2, 8) is not on the line

Repeat with (x₁, y₁ ) = (- 2, 5) and (x₂, y₂ ) = (- 5, 1)

m = \frac{1-5}{-5+2} = \frac{-4}{-3} = \frac{4}{3} ← point (- 5, 1) is not on the line

Repeat with (x₁, y₁ ) = (- 2, 5) and (x₂, y₂ ) = (1, 1)

m = \frac{1-5}{1+2} = - \frac{4}{3} ← point (1, 1) is not on the line

Thus the point on the line is (6, - 1 ) → A

4 0
3 years ago
In your own words, define Quadratic Equation. How many solutions does a Quadratic Equation have?
dmitriy555 [2]

Answer: an equation that has one term which is nameless and squared also no term which gets raised to higher power.

Step-by-step explanation:

5 0
3 years ago
12n + 25 = -2n + 55 <br><br> I’ll give brainliest
Mama L [17]

Answer:

n=\frac{15}{7}

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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