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Virty [35]
2 years ago
6

Solve the quadratic equation x square + 6 x + 9 equals 0​

Mathematics
1 answer:
Nataly [62]2 years ago
4 0
X^2 + 6x +9
(x+3) (x+3)

x+3 = 0
x = -3

answer: x=-3
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Using the distributive property, which of the following expressions is equivalent to 6(3 + 6y)?
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6*3 + 6y*6 = 18+36y The answer is D!
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What is the solution to the equation -√(15+x)=-3?
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Priya starts with $50 in her bank account. She then deposits $20 each week for 12 weeks.
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Answer:

10 weeks

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2 years ago
What is the equation of the line that passes through the point (4, 6) and is parallel to the line 2y - 4x = 1?
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Answer:

D. y = 2x - 2

Step-by-step explanation:

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2y-4x = 1\\2y = 4x+1\\y = 2x+\frac{1}{2}

A line placed in slope-intercept form is represented by the formula y = mx + b. The m, or the coefficient of the x-term, represents the slope. Thus, the slope of this line is 2.

2) Lines that are parallel share the same slope. So, the slope of the parallel line will have 2 as its slope as well.

We now have enough information to write the equation of the line in point-slope form. From there, we can convert it to slope-intercept form and find out which option is correct.

Use the point-slope formula y-y_1 = m (x-x_1) and substitute values for m, x_1, and y_1. Since m represents the slope of the line, substitute 2 in its place. Since x_1 and y_1 represent the x and y values of a point the line intersects, substitute the x and y values of (4,6) into the formula as well. Then, with the resulting equation, isolate y like before to find which option is correct:

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So, option D is correct.  

7 0
3 years ago
2) Jarrah needs no less than $159 to purchase a new guitar. He already has $38 in his savings account. He
aleksandr82 [10.1K]

Answer: Jarrah has to rake 25 bags.

Step-by-step explanation: Jarrah

Jarrah needs to get $159 dollars, right? Well since he already has $38, we just need to subtract 159 and 38. 159-38 is 121. (121 is how much heneeds  )Each bag raked costs $5, and 5 can't go into 121, so it's best to have more than less. Multiply 5 and 25, and you will get $125. That is more than enough, you cannot do 5x24 because it would be 120, which is too low. Therefore, Jarrah needs to rake 25 bags.

7 0
2 years ago
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