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Nataliya [291]
3 years ago
5

Solve for x. 5x^2 - 55 = 90,

Mathematics
1 answer:
timofeeve [1]3 years ago
6 0
X = the square root of 29, or the square root of -29.

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Plz help idk how to do this
finlep [7]

Answer:

35

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The questions are in the pictures:)
JulsSmile [24]

Answer:

4.75 to 7.5

Step-by-step explanation:

just look at it or use a pencil to draw lines to proportion

7 0
3 years ago
Choose 2 answers one for the center and one for the spread
Citrus2011 [14]
Is A & C.

Explanation:
A. Median for sea turtles:
The set is odd, so median is the middle number - 4
The koi set had 10, even number, so the median for the koi is the average of the 2 middle: 4+3=3.5

Turtles > koi

C. The ages of koi are more spread out - 10. The turtles are only 5.




7 0
3 years ago
Determine the equation of the line that is perpendicular to the line y = 3x + 4 and passes through the point (6, 2).
fomenos

Answer:

y = -1/3x + 4

Step-by-step explanation:

Perpendicular lines: Their gradients are reciprocals.

This means:

  • -1 ÷ Gradient 1 = Gradient 2
  • Gradient 1 * Gradient 2 = -1

Gradient of the given equation is 3.

-1 / 3 = -1/3

Gradient of the equation we're finding is -1/3

y = -1/3x + c

Substitute the coordinates in to find the value of c

2 = -1/3(6) + c

2 = -2 + c

2 + 2 = c

4 = c

y = -1/3x + 4

3 0
3 years ago
Find the inverse of the function f(x)=5x-6/x+2
Naily [24]

Answer:

  f^{-1}(x)=\dfrac{2x+6}{5-x}

Step-by-step explanation:

Swap x and y, then solve for y.

x=\dfrac{5y-6}{y+2}\\\\x(y+2)=5y-6\\\\xy+2x=5y-6\\\\2x+6=5y-xy\\\\y=\dfrac{2x+6}{5-x}\\\\f^{-1}(x)=\dfrac{2x+6}{5-x}

3 0
3 years ago
Read 2 more answers
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