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2 years ago

I Need Help With This Problem Please :)

Mathematics

1 answer:

san4es73 [151]2 years ago

7 0

Answer:

Output = input + 2

Step-by-step explanation:

Simple, take some values to figure it out.

When input is 0, output is 2

When input is 1, output is 3

When input is 2, output is 4

When input is 3, output is 5

There is one commonality between them:

The output is simply input + 2

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What are the possible values of x in 8x^2+4x=-1

Vladimir79 [104]

Answer:

$x1=-0.25(+)(0.25i)$

$x2=-0.25(-)(0.25i)$

Step-by-step explanation:

we have

$8x^{2}+4x=-1$

Factor the leading coefficient

$8(x^{2}+0.5x)=-1$

Complete the square. Remember to balance the equation by adding the same constants to each side.

$8(x^{2}+0.5x+1/16)=-1+1/2$

$8(x^{2}+0.5x+1/16)=-1/2$

$(x^{2}+0.5x+1/16)=-1/16$

Rewrite as perfect squares

$(x+0.25)^{2}=-1/16$

remember that

$i=\sqrt{-1}$

$(x+0.25)=(+/-)(0.25i)$

$x=-0.25(+/-)(0.25i)$

$x1=-0.25(+)(0.25i)$

$x2=-0.25(-)(0.25i)$

6 0

2 years ago

What is the equation of a line that has a slope of −1/2 and a y-intercept of 3? Express your answer in slope-intercept form.

alukav5142 [94]

$\bf \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}~\hspace{10em}\underset{\qquad y-intercept}{\stackrel{slope}{y = \stackrel{\downarrow }{-\cfrac{1}{2}}x}+\underset{\uparrow }{3}}$

8 0

2 years ago

The width of a rectangle is X centimetres. the length of the rectangle is (X+5) centimetres.

Oliga [24]

Answer:

12 cm

Step-by-step explanation:

width = x

length = x + 5

perimeter = 38cm

perimeter = length + width + length + width

x + 5 + x + x + 5 + x = 38

4x + 10 = 38

4x = 28

x = 7

length = x + 5 = 7 + 5 = 12

6 0

1 year ago

Read 2 more answers

5. Sam wrote the expression below.

Fed [463]

Answer:

see below

Step-by-step explanation:

10 + 15k

Factor out the greatest common factor 5

5( 2+3k)

Rewriting

5(3k+2)

Rami is correct if a=2 then his expression is 5(3k+2)

Kenneth

yk+6+8k+4

Add the terms together

k(y+8) + 10

If y =7 then Kenneth is correct otherwise he is incorrect

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2 years ago

The Pythagorean theorem can only be used with witch type of triangle

HACTEHA [7]

Answer:

Right Triangles

Step-by-step explanation:

3 0

1 year ago