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2 years ago

The expression 2r^2+18x +40 has a greatest common factor of 2.

Mathematics

1 answer:

avanturin [10]2 years ago

7 0

2(x^2+9x+20)

2(x^2+5x+4x+20)

2{x(x+5)+4(x+5)}

2(x+5)(x+4)

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Find all the values of x where the tangent line is horizontal.<br> 2x^3+36x^2+192x+12

Afina-wow [57]

At x = -4 and -8
Take the derivative of the given equation to find rate of change of the graph.
f'(x) = 6x^2 + 72x + 192
At a horizontal tangent, f'(x) = 0, so set the equation equal to 0 and solve. Eventually you get x = -4 and -8

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2 years ago

Anyone ?? Know the answers to these both? Due tmr morning

tresset_1 [31]

Answer:

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Step-by-step explanation:

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3 years ago

Please help me with this

Cerrena [4.2K]

Answer:

Yes;Each side of triangle PQR is the same length as the corresponding side of triangle STU

Step-by-step explanation:

You can observe the sides of both triangles to see if this property holds

Lets check the length of AB

A(0,3) and B(0,-1)

$AB=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\\\\\\\AB=\sqrt{(0-0)^2+(-1-3)^2} \\\\\\\\AB=\sqrt{0^2+-4^2} \\\\\\AB=\sqrt{16} =4units$

Now check the length of the corresponding side DE

D(1,2) and E(1,-2)

$DE=\sqrt{(1-1)^2+(-2-2)^2} \\\\\\DE=\sqrt{0^2+-4^2} \\\\\\DE=\sqrt{16} =4units$

The side AB has the same length as side DE.This is also true for the remaining corresponding sides.

6 0

3 years ago

I need help with the equation (11) - 2.

nirvana33 [79]

Answer:

it's technically 9 because it's the same as 11-2

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3 years ago

Solve the following equation when x = 7. y = 8 + 3x <br> HELP

Grace [21]

Answer:

y=29

Step-by-step explanation:

Replace x with 7:

y=8+3(7)

Multiply 7 and 3:

y=8+21

Add together:

y=29

4 0

3 years ago

Read 2 more answers