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3 years ago

Qual é a posição relativa entre as retas y = 2x + 5 e y = -4x + 1

Mathematics

1 answer:

nadezda [96]3 years ago

6 0

I think the answer is -3

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(x + y + z = 3 -y = x 2z + 3y = 0 What does x and y equal?

NeTakaya

Answer:

x=2 and y=-2

Step-by-step explanation:

7 0

3 years ago

Write an equation in slope-intercept form that passes through (2, -3) and slope of -5.

Ksivusya [100]

Step-by-step explanation:

Hey there!

The given slope is "-5" and it passes through point (2,-3).

Use one-point formula to find out the equation.

$(y - y1) = m(x - x1)$

Put all values.

$(y + 3) = - 5(x - 2)$

Simplify it.

$(y + 3) = - 5x + 10$

$y = - 5x + 10 - 3$

$y = - 5x + 7$

Therefore, the equation is y= -5x+7.

Hope it helps...

8 0

3 years ago

David went shopping for a new phone because of. A sale. The price on the tag was 46$ but David paid 39.10 before tax. Find a he

Luden [163]

Answer:

Step-by-step explanation:

Complete answer

3 0

2 years ago

What is the width of a rectangle with an area of five eights in the length of 10 inches

riadik2000 [5.3K]

It would be: 1- 5/8 = 3/8

3/8 * 10 = 30/8 = 3.75 inches

5 0

3 years ago

Find the 57th derivative of y = cos(7x).

mel-nik [20]

y = cos(7x)

First derivative = -7sin(7x)

Second derivative = - (7^2)cos(7x)

3rd derivative = (7^3)sin(7x)

4th derivative = (7^4) cos(7x)

5th derivative = -(7^5) sin (7x)

6th derivative = -(7^6) cos(7x)

nth derivative ?

Analysis and conclusion

If n is multiple of 4 or a number before a multiple of 8 the sign is positive

If n is one or two numbers after a multiple of 4 the sign is negative.

7 is raised to exponent n

if n is odd the function is sin(7x), if n is even the function is cos(7x)

n = 57 => odd, and it is a number after 56 which is a multiple of 4 => negative sign

Therefore, the 57th derivative = - (7^57)sin(7x)

6 0

3 years ago