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2 years ago

Select the statement that describes this expression: (10 − 3) x 4 + 5.

Mathematics

2 answers:

Luden [163]2 years ago

5 0

You subtract the 3 from the 10 then you get 7. then do 4 times 7 then you get 28 then add 5 to 28

tankabanditka [31]2 years ago

4 0

Answer:

Multiply 4 by the difference of 10 and 3, then add 5

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WHAT IS X³-27 SIMPLIFIED

Eduardwww [97]

Answer:

It is (x - 3)³ - 9x(3 - x)

Step-by-step explanation:

Express 27 in terms of cubes, 27 = 3³:

$= {x}^{3} - {3}^{3}$

From trinomial expansion:

${(x - y)}^{3} = (x - y)(x - y)(x - y) \\$

open first two brackets to get a quadratic equation:

${(x - y)}^{3} = ( {x}^{2} - 2xy + {y}^{2} )(x - y)$

expand further:

${(x - y)}^{3} = {x}^{3} - y {x}^{2} - 2y {x}^{2} + 2x {y}^{2} + x {y}^{2} - {y}^{3} \\ {(x - y)}^{3} = {x}^{3} - {y}^{3} + 3x {y}^{2} - 3y {x}^{2} \\ {(x - y)}^{3} = {x}^{3} - {y}^{3} + 3xy(y - x) \\ \\ { \boxed{( {x}^{3} - {y}^{3} ) = {(x - y)}^{3} - 3xy(y - x)}}$

take y to be 3, then substitute:

$( {x}^{3} - 3^3) = {(x - 3)}^{3} - 9x(3 - x)$

5 0

3 years ago

Find the area of the shape shown below. 4 2 2 1 units

Hunter-Best [27]

Answer:

Step-by-step explanation:

it's a rectangle of area 2*4=8 minus a triangle of area 1*2/2=1 so 8 - 1 = 7

7 0

2 years ago

Read 2 more answers

Which Question Has roots of x= -2 and x

vazorg [7]

See explanation below.

Explanation:

The 'difference between roots and factors of an equation' is not a straightforward question. Let's define both to establish the link between the two..

Assume we have some function of a single variable

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we'll call this

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Then we can form an equation:

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Then the "roots" of this equation are all the values of

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Now, up to this point we have not assumed anything about

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(

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(

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⋅

(

)

That is that

(

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factorises into some functions

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(

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If we recall our equation:

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Then we can now say that either

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(

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.. and thus show the link between the roots and factors of an equation.

[NB: A simple example of these general principles would be where

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is a quadratic function that factorises into two linear factors.

4 0

3 years ago

What is the coressponding mean

Katen [24]

Analogous or equivalent in character, form, or function; comparable.

I hope that this answer helps you.

6 0

3 years ago

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What equation is parallel to the line 3x+y=5

Alex_Xolod [135]

Answer:

Any equation with the slope -3 and a y intercept that does not equal 5

Step-by-step explanation:

a line is parallel if the line have the same slope, and different y intercepts

3x+y=5

in slope intercept form is

y=-3x+5

slope : -3

y intercept 5

3 0

3 years ago