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2 years ago

Help me out please!!!~

Mathematics

2 answers:

Ipatiy [6.2K]2 years ago

7 0

I’m pretty sure it’s the 3rd one

kicyunya [14]2 years ago

3 0

Answer:

y = - 3/10x + 1/2

Step-by-step explanation:

It's the 2nd one because it's <u>rise</u>

run

Since the slope is negative, you're going down 3, right 10. and the y -intercept AKA the starting point, is 1/2 because it's on the y line & well, that's where it starts.

Hope this helps you!! :)

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Simplify<br> (3/2x+5) + (5/x-5)

tia_tia [17]

Answer:

(3x + 10) / (2x + 5)(x - 5).

Step-by-step explanation:

(3/2x+5) + (5/x-5)

= [3(x - 5) + 5(2x + 5) ] / [ (2x + 5)(x - 5)]

= 3x - 15 + 10x + 25 / (2x + 5)(x - 5)

= 13x + 10 / (2x + 5)(x - 5).

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3 years ago

It takes 10 pounds of potatoes to make 15 servings of mashed potatoes. At this rate:

UkoKoshka [18]

Answer:

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Step-by-step explanation:

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2 years ago

Determine the next step for solving the quadratic equation by completing the square

GaryK [48]

Answer:

The two solutions are: $x=\frac{1}{2}+/-\frac{\sqrt{7} }{2}$

The next and every step are below.

Explanation:

1. $-3=-2x^2+2x$ : Given (addition property / add - 3 to both sides)

2. $-3 = - 2(x^2-x)$ : Given (commom factor - 2)

3. $-3-1/2=-2(x^2-x+1/4)$

To obtain the perfect square it was added the square of half of the coefficient of x: (1/2)² = 1/4, inside the parenthesis.

Since, the terms inside the parentthesis are multiplied by - 2, you have to add - 2 (1/4) = - 1/2 to the left side of the equation.

4. Now, you have that the trinomial x² - x + 1/4 is a square perfect trinomial which is factored as (x - 1/2)² and get the expression:

$-7/2=-2(x-1/2)^2$

5. Divide both sides by - 2 to get the next expression:

$-7/4=(x-1/2)^2$

6. The last step is to extract squere root from both sides of the equality:

$(x-1/2)=+/-\sqrt{\frac{7}{4}}\\ \\ x-1/2=+/-\frac{\sqrt{7} }{2}\\ \\ x=\frac{1}{2}+/-\frac{\sqrt{7} }{2}$

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2 years ago

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Answer:

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Step-by-step explanation:

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I am Lyosha [343]

Answer:

1.2

Step-by-step explanation:

Because the probability cannot be over 1 (assuming 1 is 100%) you can't have a 120% chance.

4 0

2 years ago