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2 years ago

What is the area of this triangle??

Mathematics

1 answer:

dezoksy [38]2 years ago

6 0

Answer:

248

Step-by-step explanation:

A=height b times base divided by two

which is:

A= 16 times 31 divided by two

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Write each expression as a product of linear factors 1. X^2+1/2x 2. X^2+2x-3 3. (2x-3)^2 4. X^3+2x^2-19x-20

Grace [21]

Answer:

1. X^2+1/2x = $x(x+\frac{1}{2})$

2. X^2+2x-3 = $(x-1)(x+3)$

3. (2x-3)^2 = (2x-3)(2x-3)

4. X^3+2x^2-19x-20 = $(x+1)(x-4)(x+5)$

Step-by-step explanation:

Each expression can be written as a product of linear factors as follows

1. X^2+1/2x ⇒ $x^{2} + \frac{1}{2}x$

$x^{2} + \frac{1}{2}x$ = $x(x+\frac{1}{2})$

Hence, X^2+1/2x = $x(x+\frac{1}{2})$

2. X^2+2x-3 ⇒ $x^{2} +2x-3$

$x^{2} +2x-3 = x^{2} +3x-x-3$

$x^{2} +3x-x-3 = x(x+3) -1(x+3)$

$x(x+3) -1(x+3) = (x-1)(x+3)$

Hence, X^2+2x-3 = $(x-1)(x+3)$

3. (2x-3)^2 ⇒ $(2x-3)^{2}$

$(2x-3)^{2} = (2x-3)(2x-3)$

Hence, (2x-3)^2 = (2x-3)(2x-3)

4. X^3+2x^2-19x-20 ⇒ $x^{3}+2x^{2} -19x -20$

$x^{3}+2x^{2} -19x -20 = (x+1)(x^{2} +x-20)$

First,

$x^{2} +x-20 = x^{2} +5x-4x-20\\x^{2} +5x-4x-20= x(x+5)-4(x+5)\\x(x+5)-4(x+5) = (x-4)(x+5)$

∴ $(x+1)(x^{2} +x-20) = (x+1)(x-4)(x+5)$

Hence, X^3+2x^2-19x-20 = $(x+1)(x-4)(x+5)$

3 0

3 years ago

Which shapes have at least One angle but is not a square

Law Incorporation [45]

Answer:

right trianigle

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Please help fasttt!!

gogolik [260]

Answer:

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Step-by-step explanation:

8 0

4 years ago

Read 2 more answers

What are the solutions to the following system of equations?

sergeinik [125]

Answer:

A (2,-1)

Step-by-step explanation:

-1 = 3(2) -7

5(2) - (-1) = 11

4 0

3 years ago

What is 0.326 in expanded form

12345 [234]

0.300 + .020 + 0.006 would be 0.326 in expanded form.

3 0

4 years ago