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3 years ago

7

Which expression is equivalent? (2−1x−3y−3)5

1 answer:

irga5000 [103]3 years ago

5 0

<span><span>−<span>5x</span></span>−<span>15y</span></span>−<span>5 is what i get</span>

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Which simplified expression matches the set of tiles shown?

notka56 [123]

Answer:

The expression - x² - x + 2 and - x² + x + 2 matches the set of tiles

Step-by-step explanation:

Given four expression as :

A ) - x² - x + 2

solving by mid term breaking

Or, - x² - 2 x + x + 2

Or, - x ( x + 2 ) + 1 ( x + 2 )

or, ( x + 2 ) ( - x + 1 )

B ) x² - x + 2

solving by mid term breaking

Or, x² - 2 x + x + 2

or, x ( x - 2 ) + 1 ( x + 2 )

So, the expression will not break

C ) - x² + x + 2

solving by mid term break

Or, - x² + 2 x - x + 2

or, - x ( x - 2 ) - 1 ( x - 2 )

or, ( x - 2 ) ( - x - 1 )

D ) x² + x + 2

solving by mid term break

Or, ) x² + 2 x - x + 2

Or, x ( x + 2 ) - 1 ( x - 2 )

so, The expression will not break

Hence The expression - x² - x + 2 and - x² + x + 2 matches the set of tiles answer

6 0

3 years ago

A triangular prism has a base that is 6 cm by 4 cm and a height of 8 cm. If all dimensions are tripled, what happens to the volu

lana [24]

Im assuming the base of the triangle is 4cm. The volume is $96cm^{3}$ .
If the dimensions are tripled, the base is 12, the height is 24, and the length is 18. The volume is $2592cm^{3}$ , which is 27 times bigger.
If you are increasing each side by a factor of x, you are multiplying the original by $x^{3}$

3 0

3 years ago

Read 2 more answers

What’s the answer of a multiplying polynomials (3x-1) to the second power and (x+6) to the second power

Vladimir [108]

$9x^4+102x^3+253x^2-204x+36$ is the result of multiplying (3x-1) to the second power and (x+6) to the second power

<h3><u>Solution:</u></h3>

Given that we have to find the result of multiplying polynomials (3x-1) to the second power and (x+6) to the second power

"Second power" means the term is raised to power of 2

Therefore,

We have to multiply $(3x-1)^2 \text{ and }(x+6)^2$

$\rightarrow (3x-1)^2 \times (x+6)^2$

We can use the algebraic identity to expand the above expression

$(a+b)^2 = a^2+2ab+b^2\\\\(a-b)^2=a^2-2ab+b^2$

Applying these in above expression, we get

$\rightarrow ((3x)^2-2(3x)(1)+1^2) \times (x^2+2(x)(6)+6^2)\\\\\rightarrow (9x^2-6x+1) \times (x^2+12x+36)$

Multiply each term in first bracket with each term in second bracket

$\rightarrow 9x^2(x^2)+(9x^2)(12x)+(9x^2)(36)-6x(x^2)-6x(12x)-6x(36) + x^2+12x+36$

Simplify the above expression

$\rightarrow 9x^4+108x^3+324x^2-6x^3-72x^2-216x+x^2+12x+36$

Combine the like terms

$\rightarrow 9x^4+102x^3+253x^2-204x+36$

Thus the above expression is the result of multiplying (3x-1) to the second power and (x+6) to the second power

4 0

3 years ago

Please helpppppppppp i will mark brainlist

VikaD [51]

Answer:

10.4 cm

Step-by-step explanation:

Since the area is half of the base multiplied by the height A = 1/2 * b * h, the height can be found from h = 2A/b

h = (2 * 83.72 )/16.1 = 10.4

4 0

3 years ago

Read 2 more answers

What is the volume of Alina’s model in cubic centimeters

Marat540 [252]

There’s no picture so I can’t help you sorry :(

5 0

3 years ago