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3 years ago

What is the answer for (1/2 divided by 2/7) divided by 4/3

Mathematics

1 answer:

Kaylis [27]3 years ago

6 0

Answer:

1.3125

Step-by-step explanation:

1/2 divided by 2/7 is 1.75

1.75 divided by 4/3 equals 1.3125

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P(x)=2x^3-11x^2+ax-40 if x+4 is a factor of this polynomial what is the value of a

Vika [28.1K]

Answer:

a = -86.

Step-by-step explanation:

By the Factor Theorem, if x + 4 is a factor then P(-4) = 0, so:

P(-4) = 2(-4)^3 - 11(-4)^2 + a(-4)- 40 = 0

-128 - 176 - 4a - 40 = 0

-4a = 128 +176 + 40

-4a = 344

a = -86.

3 0

3 years ago

A curve in polar coordinates is given by: r=9+3cosθ. Point P is at θ=21π/18 .?

ikadub [295]

Answer:

Step-by-step explanation:

Given that a curve in polar coordinates is given by:

r=9+3cosθ

a) At point P, we have

$θ=\frac{21\pi}{18}$

Substitute to get

$r=9+cos \frac{21\pi}{18}\\=9.3932$

b) Cartesian coordinate is

$x= rcos \theta=3.6934\\y =r sin \tjeta =8.6365$

c) At the origin r =0

when r =0

we have

$9+3cos\theta=0\\cos\theta =-3$

Since cos cannot take values as -3 it doe snot pass through origin.

6 0

3 years ago

Find the measure of the arc or angle indicated. or find the value of x

bonufazy [111]

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3 years ago

Is my name OG because i want to know

vovikov84 [41]

Answer:

okayyyyy.... then

Step-by-step explanation:

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kondor19780726 [428]

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