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MatroZZZ [7]
3 years ago
15

Convert the equation -9x^2+25y^2-100y-125=0 into standard form​

Mathematics
2 answers:
Rudiy273 years ago
5 0

Answer:

(y−2)29−x225=1

Step-by-step explanation:

vladimir1956 [14]3 years ago
4 0

Answer:

(y-2)^2/9-x^2/25=1

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you rent a canoe for 5$ per hour.Your cost before the tax is added is 12.50. write and solve an equation to find the total numbe
Basile [38]

Answer: The equation is   5x = 12.50   and  you will have the canoe for 2 and half hours or 2 hours 30 minutes.

Step-by-step explanation:

You rent the canoe for 5 dollars per hour and that can be represented by the expression  5x.  After sometime you paid $12.50 meaning that to find the number of hours that you need the canoe, we need to set 5x to equal 12.50.

5x  = 12.50    Solve for x  by divide both sides by 5.

x = 2.5

This means you will need the canoe for 2 and half hours.

8 0
3 years ago
Write two equivalent rates for 3 breads made in 45 minutes.
Alex777 [14]

Answer:

1/15 ; 6/90

Step-by-step explanation:

\frac{3}{45}=\frac{1}{15} \\\\\frac{3}{45}=\frac{3*2}{45*2}=\frac{6}{90}

7 0
3 years ago
Help please!!! I just seriously need help I'm bad at math>
azamat
There is only 1 real number solution
8 0
3 years ago
X^4 − 3x^2 − 90 x= -3
Ahat [919]

Answer:

-36

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

x⁴ - 3x² - 90

x = -3

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                                                                                                  (-3)⁴ - 3(-3)² - 90
  2. Exponents:                                                                                                        81 - 3(9) - 90
  3. Multiply:                                                                                                             81 - 27 - 90
  4. Subtract:                                                                                                            54 - 90
  5. Subtract:                                                                                                            -36
8 0
3 years ago
A human body that is performing light work generates about 400 btus of the body heat per hour while active. if an office that is
Neporo4naja [7]
I got none of the above my answer is 1.6 BTUs/ft3. I did 400 x 8 x 3 for total BTUs = 9600 btus and the volume of the room was 20 x 30 x10 ft = 6000 cu ft so 9600/6000= 1.6 BTUs/ft3
6 0
3 years ago
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