3 years ago

Rewrite the following polynomial in standard form. 9x +x^2- 1/10

Mathematics

1 answer:

valentinak56 [21]3 years ago

4 0

Answer:

x^2+9x−1/10

hopefully this helps, it's just writing it backwards

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The height, h, in metres, of a rocket t seconds after it is launched is approximately modelled by the quadratic relation h = 80t

8_murik_8 [283]

Answer: 5 s

Step-by-step explanation:

Given

Height of the rocket can be modelled as $h=80-16t^2$

Rocket will land on earth when it's height becomes 0

$\Rightarrow 80t-16t^2=0\\\Rightarrow t(80-16t)=0\\\\\Rightarrow t=0\ \text{or}\ t=\dfrac{80}{16}=5\ s$

Neglecting 0 value

Thus, rocket remains in air for 5 s.

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3 years ago

The length of a rectangle is five times its width. The perimeter of the rectangle is at most 96 cm. Which inequality models the

aivan3 [116]

Let

L--------> the length of the rectangle

W-------> the width of the rectangle

we know that

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$P=2L+2W$

$P\leq 96\ cm$

$(2L+2W)\leq 96$ ---------> equation $1$

$L=5W$ ---------> equation $2$

Substitute equation $2$ in equation $1$

$2*(5W)+2W\leq 96$

therefore

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2w+2⋅(5w)≤96

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3 years ago

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Alexeev081 [22]

The least common denominator is two

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A line has a slope of -4 and passes through the point (0,-6) how do you do this ?

Murrr4er [49]

Answer:

y = -4x-6

Step-by-step explanation:

point slope form

y-y1 = m(x-x1)

y--6 = -4 (x-0)

y+6 = -4(x)

solve for y

subtract 6 from each side

y = -4x-6

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4 years ago

Help me where have I gone wrong ?

pochemuha

What do you mean all i see is overview and thats it how can we tell you the answer??

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4 years ago