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2 years ago

Which triangle is a 30°-60-90° triangle? 1st Triangle 2nd Triangle 3rd Triangle

Mathematics

1 answer:

exis [7]2 years ago

5 0

Answer:

1st Triangle

Step-by-step explanation:

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Plssss help quick i need it for sum important

Vanyuwa [196]

(a) The product of $(2x-4)\ and\ (3x^2-x+4)$ is calculated to be $=6x^3-14x^2+12x-16$

(b)The product of $(2x-4) \ and\ (3x^2-x+4)\$ is not equal to the product of $(4x-2)\ and\ (3x^2-x+4)$

Step-by-step explanation:

(a)

$(2x-4)(3x^2-x+4)\\\\=(2x.3x^2)+(2x.-x)+(2x.4)+(-4.3x^2)+(-4.-x)+(-4.4)\\\\=6x^3-2x^2+8x-12x^2+4x-16\\\\=6x^3-14x^2+12x-16$

$(4x-2)(3x^2-x+4)\\\\=(4x.3x^2)+(4x.-x)+(4x.4)+(-2.3x^2)+(-2.-x)+(-2.4)\\\\=12x^3-4x^2+16x-6x^2+2x-8\\\\=12x^3-10x^2+18x-8$

The product of $(2x-4) \ and\ (3x^2-x+4)\$ is not equal to the product of $(4x-2)\ and\ (3x^2-x+4)$

7 0

3 years ago

I need help with number 3 and 5

shepuryov [24]

3 is no cuz obtuse angle is >90 degrees, all the angles together must equal 180 degrees, and if you try it, you get no. 5 is 25% of 45, which is $11.25.

5 0

3 years ago

Read 2 more answers

Write as a fraction in simplest form.

seropon [69]

Answer:

2/4=1/2

3/6=1/2

4/16=1/4

7 0

2 years ago

A parallelogram shaped tapestry has a base of 6 feet and a height of 5 feet. Explain how you would find the area of the tapestry

Katen [24]

Answer:

Step-by-step explanation:

the area of a parallelogram is its base x height. in this case it will be 6 * 5 = 30

PLEASE MARK AS BRAINLIEST

6 0

2 years ago

Read 2 more answers

For the function, f(x) = -3x + 5. If f(x) = -1, what is the value of x?

Archy [21]

Remember the f(x) is the same thing as y so...

y = -3x + 5

y = -1

To solve this plug -1 in for y in the equation y = -3x + 5 and solve for x

-1 = -3x + 5

-6 = -3x

2 = x

When f(x) is -1 then x is 2

Hope this helped!

~Just a girl in love with Shawn Mendes

6 0

3 years ago