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Juli2301 [7.4K]

3 years ago

9

Write the equation of a line with the slope of -3 and through the point (2,-2).

1 answer:

GarryVolchara [31]3 years ago

8 0

Answer:

y +2 = -3(x -2)

Step-by-step explanation:

The point-slope form of the equation of a line is useful for this:

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

__

y +2 = -3(x -2) . . . . fill in the given values. Note that -(-2) = +2

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A projectile fired at 5 m/s from a gun. If the horizontal component of the initial velocity is equal to 4 m/s. What is the value

svlad2 [7]

Answer:

$the \: value \: of \: the \: vertical \: component \to : \\ (v_v) = 3m {s}^{ - 1} \\$

Step-by-step explanation:

$let \: the \: velocity \: be \to \: v \\let \: the \: horizontal \: component \: be \to \: v_h \\ let \: the \: vertical \: component \: be \to \: v_v \\ applying \: the \: pythagorean \: rule \: of \: vectors \to : \\ {v}^{2} = {v_v}^{2} + {v_h}^{2} \\ {v_v}^{2} = {v}^{2} - {v_h}^{2} \\ {v_v}^{2} = {5}^{2} - {4}^{2} \\ v_v = \sqrt{(25 - 16)} \\ v_v = \sqrt{9} \\ \boxed{ v_v = 3 {ms}^{ - 1} }$

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2 years ago

Solve this quadratic equation. Show all work. <br><br><br> 4x^2-2x-5=0

kicyunya [14]

X= -b⁺₋ √b²-4ac/2a
x= (-(-2)⁺₋√(-2)²- 4(4)(-5))/2(4)
x= 4 ⁺₋√4+80/8
x= (4⁺₋ 9.165)/8
x= 4+9.165)/8 or x= 4-9.165)/8
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2 years ago

Subtract the mixed numbers by finding the common denominator. Three and four sixths minus one and one half equals blank

artcher [175]

Answer:b
Because my take the test

7 0

2 years ago

Read 2 more answers

Write and inequality or this statement ; To watch this movie you must be at least 17 years old ?

julia-pushkina [17]

Answer:

x<u>></u>17

Step-by-step explanation:

5 0

2 years ago

Five carpenters worked 15 & 3/4, 15 & 1/4, 17 & 1/2, 12 & 1/2 and 17 & 1/2 hours respectively. What was the

azamat

<u>The total </u><u>labor cost</u><u> of the carpenters is $2296.91</u>

The carpenters worked $15\frac{3}{4} , 15\frac{1}{4}, 17\frac{1}{2}, 12\frac{1}{2}, 17\frac{1}{2}$

<h3>Conversion of Fraction</h3>

Let's convert the mixed fraction to improper fraction

So, we would have

63/4,
61/4,
35/2,
25/2
35/2.

<h3>Working Cost</h3>

Let's sum it up and multiply by the working cost per hour

$63/4 + 61/4 + 35/2 + 25/2 + 35/2 =78.5$

The total labor cost is = total hours worked * hourly rate.

This becomes $78.5*29.26=2296.91$

<u>The total labor cost is $2296.91</u>

Learn more about rate here;

brainly.com/question/1115815

3 0

2 years ago