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3 years ago

What is the slope of the line that is perpendicular to the line whose equation is 2x + y = 4. -2 - 2

Mathematics

2 answers:

cestrela7 [59]3 years ago

4 0

Answer:

1/2

Step-by-step explanation:

2x+y =4

Lets solve for y so the equation is in slope intercept form

Subtract 2x from each side

2x-2x+y = -2x+4

y = -2x+4

The slope is-2

When we want a perpendicular line, the slope is the negative reciprocal

-(1/-2)

+ 1/2

The slope of the new line is 1/2

Tcecarenko [31]3 years ago

4 0

What is the slope of the line that is perpendicular to the line whose equation is 2x + y = 4. -2 - 2

Answer:

1/2

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Identify sinJ as a fraction and as a decimal rounded to the nearest hundredth.

KiRa [710]

In the given right triangle, the trigonometric ratio, sin J has a fractional value of 5/13 and a decimal value of 0.39.

In trigonometry, for a right triangle, the sine (sin) of any angle θ is given as the ratio of its opposite side to the hypotenuse of the triangle, that is, sin θ = (opposite side)/(hypotenuse).

In the question, we are asked to find the trigonometric ratio, sin J, for the given right triangle JKL.

The side opposite to angle J is KL, which has a value of 3 units.

The hypotenuse of the given right triangle is JK, which has a value of 7.8 units.

Thus, sin J can be calculated as:

sin J = KL/JK = 3/7.8 = 5/13 = 0.39.

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2 years ago

Read 2 more answers

which of the following is the equation of the line that passes though the point (-2,1) and has a slope of 4

Ierofanga [76]

An equation that goes through (-2, 1) and has a slope of 4 is y = 4x + 9.

You can find this by looking for the y-intercept (b) by using the slope (m), the point and slope intercept form. The work is below for you.

y = mx + b

1 = 4(-2) + b

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Now we can use that and the slope to create the equation y = 4x + 9

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3 years ago

What are the zeros of f(x)=x^2+x-20?

zzz [600]

F(x) = x² + x - 20 = x² + 5x - 4x - 20 = x(x + 5) - 4(x + 5) = (x + 5)(x - 4)

f(x) = 0 ⇔ (x + 5)(x - 4) = 0 ⇔ x + 5 = 0 or x - 4 = 0 ⇒ x = -5 or x = 4

Answer: C. x = -5 and x = 4.

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3 years ago

Percent of change from 115 to 338

MrRa [10]

Answer:

237 ⁹/23% change

Step-by-step explanation:

115=100%

337-155=273 which represents the increase

115=100

273=?

273×100÷115= 237 ⁹/23%

Answer =237⁹/23%

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3 years ago