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musickatia [10]
2 years ago
15

Pls help me out .....

Mathematics
1 answer:
Eduardwww [97]2 years ago
4 0

Answer:

B

Step-by-step explanation:

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(x - 3) (3x + 7) = 0 Find the values of x.
expeople1 [14]
(x-3)(3x+7)=0
x-3=0 or 3x+7=0

1. x-3=0
x₁=3

2. 3x+7=0
3x=-7
x₂=-7/3 = -2(1/3)
8 0
3 years ago
Read 2 more answers
Can anyone help me with THIS and the other TWO‼️PLEASE I’m really need HELP
scZoUnD [109]

Answer:

y = 3x +2

Step-by-step explanation:

It is helpful to be acquainted with the parts of at least a couple of different forms of the equation for a line.

You are given the equation of a line in "slope-intercept" form. It looks like ...

... y = mx + b . . . . . . . where m=-1/3 and b=-1

The coefficient of x, which is m, is the slope of the line. That is -1/3 for the given line.

The relationship between the slopes of perpendicular lines is that they multiply to give -1. We say each is the opposite reciprocal of the other. If we let "m" stand for the slope of the perpendicular line, it satisfies the equation ...

...(m)(-1/3) = -1

... m = -1/(-1/3) = 3 . . . . . the slope of the perpendicular line is 3.

____

Here's where another form of the equation for a line is useful. We can write the "point-slope" form* as ...

... y = m(x -h) +k . . . . . . for a line of slope m through point (h, k)

We want our line of slope = 3 to go through the point (1, 5), so its equation can be ...

... y = 3(x -1) +5 . . . . . . . variation of "point-slope" form

The given equation is in slope-intercept form, and the question asks for "the" equation of the line, so we probably should write our answer in the same form as the given equation. We can do this by eliminating the parentheses and simplifying the equation we have.

... y = 3x -3 +5 . . . . eliminate parentheses using the distributive property

... y = 3x +2 . . . . . . collect terms

The graph shows our result is at least plausible: it looks like it is perpendicular, and it goes through the given point.

___

<em>*Comment on point-slope form</em>

Usually, you will see "point-slope" form written as ...

... y -k = m(x -h) . . . . . . . . standard version of "point-slope" form

When our intent is to use this form to get to slope-intercept form, it is more convenient to add k to this equation to get ...

... y = m(x -h) +k . . . . . . . occasionally useful version

4 0
3 years ago
Convert 60°F to degrees Celsius. If necessary, round your answer to the nearest tenth of a degree.
Luba_88 [7]
Answer: 60°F = 15.5°C
8 0
3 years ago
a line passes through the point (-8,6) and has a slope of - 5/4. write an equation in point-slope form for this line. __________
mart [117]
Would you like this answer in y= form?
8 0
3 years ago
a cylindrical well has a radius of 10 feet and a height of 15feet .what volume of water will it take to fill in the well.
drek231 [11]
First, set up the formula.
V=pi*r^2*h
Substitute 10 for r and 15 for h.
V=pi*10^2*15
V=pi*100*15
V=pi*1500
V=4710 cubic feet
It takes 4710 cubic feet of water to fill the well.
5 0
3 years ago
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