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3 years ago

7

How to do number 17.

1 answer:

natima [27]3 years ago

4 0

$(x^6-4x^5-7x^3)\div(2x^3)=\dfrac{x^6-4x^5-7x^3}{2x^3}\\\\=\dfrac{x^6}{2x^3}-\dfrac{4x^5}{2x^3}-\dfrac{7x^3}{2x^3}=0.5x^{6-3}-2x^{5-3}-3.5\\\\=0.5x^3-2x^2-3.5\\\\Used:\\\\\dfrac{a^n}{a^m}=a^{n-m}$

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I need help don’t know how to do

ivann1987 [24]

Let x be the unknown angle.
We know that x+50=120 because the value of an exterior angle of a triangle is equal to the sum of the other 2 interior angles.

x+50 = 120
Subtract both sides by 50
x = 70

The value of the unknown angle is 70 degrees.

Have an awesome day! :)

5 0

3 years ago

Read 2 more answers

Cho tam giác DEF cân tại D có đường trung tuyến DI

Leviafan [203]

Can u translate yo English pls

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2 years ago

What is the formula of CP

agasfer [191]

Answer:

CP= SP*100\100+profit percent

CP=SP*100/100-loss percent

Step-by-step explanation:

i hope you have understood

4 0

3 years ago

What is the factored form of the expression?<br><br> d^2 = 36d + 324

Veseljchak [2.6K]

Answer:

$(x-43.45)(x+7.45)=0$

Step-by-step explanation:

We have the quadratic equation $d^{2}=36d+324$ i.e. $d^{2}-36d-324=0$

As, the roots of the quadratic equation $ax^{2}+bx+c=0$ are given by $x=\frac{-b\pm \sqrt{b^{2}-4ac}}{2a}$ .

So, from the given equation, we have,

a = 1, b = -36 , c = -324.

Substituting the values in $x=\frac{-b\pm \sqrt{b^{2}-4ac}}{2a}$ , we get,

$x=\frac{36\pm \sqrt{(-36)^{2}-4\times 1\times (-324)}}{2\times 1}$

i.e. $x=\frac{36\pm \sqrt{1296+1296}}{2}$

i.e. $x=\frac{36\pm \sqrt{2592}}{2}$

i.e. $x=\frac{36\pm 50.9}{2}$

i.e. $x=\frac{36+50.9}{2}$ and $x=\frac{36-50.9}{2}$

i.e. $x=\frac{86.9}{2}$ and $x=\frac{-14.9}{2}$

i.e. x = 43.45 and x = -7.45

Thus, the roots of the equation are 43.45 and -7.45.

Hence, the factored form of the given expression will be $(x-43.45)(x+7.45)=0$

3 0

3 years ago

Help me with my little brothers test i have a pdf document of the test and i need a answer key!!

mina [271]

Answer:

c

Step-by-step explanation:

it starts at (0,0) and follows the points best

5 0

3 years ago