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3 years ago

Cos=0.985 rounded to nearest tenth

Mathematics

1 answer:

sasho [114]3 years ago

7 0

The answer would round up to 1

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Factor each.<br><br><br> Please help!

Naddika [18.5K]

Answer:

1) The factors of $x^2-3x+2=0$ are $\mathbf{(x-1)(x-2)=0}$

Option C is correct.

3) The factors of $x^2+2x-8=0$ are $\mathbf{(x-2)(x+4)=0}$

Option B is correct.

Step-by-step explanation:

1) Factor : $x^2-3x+2=0$

For factoring we need to break the middle term, such that there sum is equal to middle term of expression and product is equal to product of first and last term.

The middle term : -3x

We can break them as (-2x)( -x)

Solving:

$x^2-3x+2=0\\x^2-2x-x+2=0\\x(x-2)-1(x-2)=0\\(x-1)(x-2)=0$

So, factors of $x^2-3x+2=0$ are $\mathbf{(x-1)(x-2)=0}$

Option C is correct.

3) Factor: $x^2+2x-8=0$

For factoring we need to break the middle term, such that there sum is equal to middle term of expression and product is equal to product of first and last term.

The middle term : 2x

We can break them as (4x)( -2x)

Solving

$x^2+2x-8=0\\x^2+4x-2x-8=0\\x(x+4)-2(x+4)=0\\(x-2)(x+4)=0$

So, factors of $x^2+2x-8=0$ are $\mathbf{(x-2)(x+4)=0}$

Option B is correct.

7 0

3 years ago

Please help please please help<br> i have tried everything i could think of but i cant figure it out

Vera_Pavlovna [14]

Answer:

$\frac{\sqrt[4]{10xy^3}}{2y}$

Step-by-step explanation:

I am assuming you want me to rationalize the denominator.

6 0

2 years ago

PLEASEEE HELP NOBODY IS ANSWERING ME RIGHT ALSO I AM USING UP THE LAST OF MY PoiNTS TO ASK THIS QUESTION !!! Determine the verte

irga5000 [103]

Answer:

Step-by-step explanation:

with questions like this try using Desmos

8 0

3 years ago

Read 2 more answers

Click on my profile and answer my unanswered questions plz and thx don't take the points or else u will be reported....thx

kati45 [8]

Answer:

Ok,

Did you know that there was a chicken that went 4 years without a head?

Did you know that it is illegal to chew gum in Signapore?

Step-by-step explanation:

Hope this brightens your day!

4 0

3 years ago

Each package of pens contains 3 pens. How is the number of pens related to the number of packages?

yuradex [85]

Answer: The correct option is (C) Packages x 3 = Pens

Step-by-step explanation: Given that each package of pens contains 3 pens.

We are to choose the correct mathematical relation between number of pens and number of packages.

Let, n represents the number of pens and N represents the number of packages.

Then, according to the given information, we have

$n\times 3=N\\\\\Rightarrow \textup{Packages}\times 3=\textup{Pens}.$

Thus, the correct relation is

Packages x 3 = Pens.

Option (C) is CORRECT.

6 0

3 years ago