3 years ago

Factor by grouping.

2 answers:

6 0

1.)b
2.)c
3.)a
1.)work
(3dt-21d)+(35-5t)
=3d(t-7)+5 (7-t)
=3d(t-7)-5(-7+t)
=3d(t-7)-5(t-7)
=(t-7)(3d-5)

2.) work
vp+12v+8p+96
=(vp+12)+(8p+96)
=v(p+12)+8(p+12)
=(p+12)(v+8)

hram777 [196]3 years ago

4 0

The correct answers are A C and B

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IRINA_888 [86]

Answer:

Third option

Step-by-step explanation:

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3 years ago

The first three terms of a sequence are given. Round to the nearest thousandth (if necessary). 50, 60,72,... Find the 8th term.

Vadim26 [7]

Answer:

179.159

Step-by-step explanation:

Given the sequence :

50, 60, 72,..

The sequence given is a geometric sequence :

For a geometric sequence ;

ar^(n - 1)

a = first term

r = a2 / a1 = 60 / 50 = 1.2

The 8th term ; n =8

a8 = ar^(n - 1)

a8 = 50*1.2^(8 - 1)

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a8 = 50*3.5831808

a8 = 179.15904

a8 = 179.159 (nearest thousandth )

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3 years ago

20. Sketch the level curve of the function f(x, y) that contains the point (5,0).

PolarNik [594]

At the given point,

$f(5,0) = \dfrac1{\sqrt{5^2 + 0^2 - 9}} = \dfrac1{\sqrt{16}} = \dfrac14$

Then the level curve is

$\dfrac1{\sqrt{x^2 + y^2 - 9}} = \dfrac14 \\\\ \implies \sqrt{x^2 + y^2 - 9} = 4 \\\\ \implies x^2 + y^2 - 9 = 4^2 \\\\ \implies x^2 + y^2 = 25 = 5^2$