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lora16 [44]
3 years ago
7

Solve for x. 5x^2 – 45 = 0

Mathematics
2 answers:
mamaluj [8]3 years ago
3 0

5x^2-45=0

<em>*Add 45 to both sides*</em>

5x^2=45

<em>*Divide both sides by 5*</em>

x^2=9

<em>*Take the square root of both sides*</em>

x=+/-9

Hope this helps!!

tamaranim1 [39]3 years ago
3 0

Answer:

+-3

Step-by-step explanation:

1. Add 45 to each side: 5x^2=45

2. Divide 5 on each side: x^2=9

3. Square root both sides: x= +-3

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write the equation of the line (in slope-intercept form) that passes through the points (2,3 and (5,7)
AfilCa [17]

Answer:

The answer to your question is    y = 4/3x + 1/3

Step-by-step explanation:

Data

Point A = (2, 3)

Point B = (5, 7)

Process

1.- Calculate the slope

x1 = 2    y1 = 3

x2 = 5    y2 = 7

m = (y2 - y1)/(x2 - x1)

- Substitution

  m = (7 - 3)/(5 - 2)

- Slope

  m = 4/3

2.- Find the equation of the line

     y - y1 = m(x - x1)

     y - 3 = 4/3(x - 2)

     y - 3 = 4/3x - 8/3

     y = 4/3x - 8/3 + 3

     y = 4/3x - 8/3 + 9/3

     y = 4/3x + 1/3

8 0
3 years ago
Which phrase best describes the translation from the group y=2x^2 to the graph of y= 2x^2 +5
dsp73

Answer:

The graph move up 5.

Step-by-step explanation:

When we add a constant to the end of a parabola, it shifts the graph up and down. Since the constant here is positive, the graph moves up by that number (5)

7 0
3 years ago
What is the product? (4y - 3) (2y^2 +3y - 5)
igomit [66]

(4y-3)(2y²+3y-5)

First , let's start with "4y"

4y*2y² = 8y³

4y*3y =  12y²

4y*-5 = -20y

Next, let's multiply by "-3"

-3*2y² = -6y²

-3*3y = -9y

-3*-5 = 15

Now, let's combine all of our values.

8y³+12y²-6y²-20y-9y+15 = 8y³+6y²-29y+15

8 0
3 years ago
Answer these 2 for 50 points and brainiest and if you just try and answer with a fake answer i will report thx
iren [92.7K]

Answer:

17

Step-by-step explanation:

for number 10 the answer is 24 - 7 = 17

5 0
3 years ago
By reflecting y=3x+2 about the line y=x, graph the inverse of y=3x+2.
Rudiy27

Answer:58

Step-by-step explanation:

5 0
2 years ago
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