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3 years ago

I NEED IMMEDIATE HELP!!

Mathematics

2 answers:

qwelly [4]3 years ago

8 0

Answer:

(A) $(3x-5)(3x-5)$

Step-by-step explanation:

Perfect-square trinomials have this form:

$a^2x^2 \± 2ab + b^2$

And can be expressed as a squared binomial:

$(ax \± b)^2$

Which is the same as: $(ax+b)(ax+b)$ or $(ax-b)(ax-b)$

You can observe that $(3x-5)(3x-5)$ (Shown in the option A) matches with the form $(ax-b)(ax-b)$ , therefore, it will result in a perfect square trinomimal.

You can verify this by applyin Distributive property. Then:

$(3x-5)(3x-5)=\\=3^2x^2+(3x)(-5)+(3x)(-5)+5^2\\=9x^2-15x-15x+25\\=9x^2-30x+25$

The result is a perfect square trinomial.

DENIUS [597]3 years ago

7 0

It A because the two mirror each other so you can simplify them to (3x−5)^2.

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3 years ago

a manufacturer is designing a flashlight for the flashlight to admit a focused beam the bull needs to be on the central axis of

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Answer:

y= 1/12(x-0)^2+0

this answer works as an upward parabola

Step-by-step explanation:

The formula for a veritcal parabola is y=1/4p(x-h)^2+k
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once all the variables are given values (except x and y) you have made your equation!
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3 years ago

How do you solve quadratics by factoring??

stealth61 [152]

Answer:

https://www.lessonplanet.com/teachers/factoring-and-solving-quadratics-by-factoring?msclkid=d23ce8d1fcfe1c7155d4b5147d5d97ff&utm_source=bing&utm_medium=cpc&utm_campaign=DSA%20-%202019%20(WS)&utm_term=lessonplanet&utm_content=All%20Webpages

Step-by-step explanation:

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4 years ago

If angle c=60° , b=5 ,a=4 then find the value of the c ?

Lyrx [107]

Answer:

c=sqrt21

Step-by-step explanation:

angle c is the angle between a and b, so use the cos law

c^2=a^2+b^2-2*a*b*cosC

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3 years ago

A water dunking tank at a carnival is in the shape of a right circular cylinder. Its height is 5 feet, and the radius of each ba

bagirrra123 [75]

Answer:

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Step-by-step explanation:

No question was asked, but based off of the given information, I will assume you want to know the volume of the circular cylinder.

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2 years ago