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3 years ago

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

Sergeeva-Olga [200]3 years ago

5 0

The slope is -8/3. The y-int. is 4

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Can anyone help me with this?<br><br> Reduce the fraction

Elden [556K]

$\bf ~\hspace{7em}\textit{negative exponents} \\\\ a^{-n} \implies \cfrac{1}{a^n} ~\hspace{4.5em} a^n\implies \cfrac{1}{a^{-n}} ~\hspace{4.5em} \cfrac{a^n}{a^m}\implies a^na^{-m}\implies a^{n-m} \\\\[-0.35em] \rule{34em}{0.25pt}$

$\bf \cfrac{-20t^5u^2v^3}{48t^7u^4v}\implies \cfrac{-20}{48}\cdot \cfrac{t^5u^2v^3}{t^7u^4v^1}\implies \cfrac{-5}{12}\cdot \cfrac{v^3v^{-1}}{t^7t^{-5}u^4u^{-2}}\implies \cfrac{-5}{12}\cdot \cfrac{v^{3-1}}{t^{7-5}u^{4-2}} \\\\\\ \cfrac{-5}{12}\cdot \cfrac{v^2}{t^2u^2}\implies \cfrac{-5v^2}{12t^2 u^2}$

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4 years ago

If angle PQR equal 15 degrees in the triangle PQR, what is the value of u?

Anvisha [2.4K]

Answer:

Step-by-step explanation:

7 0

2 years ago

If y=15 when x=5, find y when x=7, given that y varies directly with x.

Oxana [17]

Answer:

when x = 7, y = 21

Step-by-step explanation:

This is about direct variation. If y varies directly with x, then there is a constant factor of variation, k. The constant of variation can be found by ʸ⁄ₓ

k = ʸ⁄ₓ

k = ¹⁵⁄₅ = 3

Now that we have found k, we simply multiply x by it to find y (this is because y is directly proportional to x). We plug in our x = 7 to find y at this point.

y = 3x

y = 3(7)

y = 21

4 0

3 years ago

X^2-4x+6x-24 factored

Lynna [10]

Answer: (X+6)(x-4)

Step-by-step explanation:

x^2-4x+6x-24 ==> x^2+2x-24

*Find two numbers that multiplied gives you -24 and add up to 2*

(6)(-4)= -24 6-4=2

Final result= (x+6)(x-4)

3 0

3 years ago

If $18\sqrt 8-8\sqrt{18}=\sqrt n$, what is $n$?

Hunter-Best [27]

Answer:

Step-by-step explanation:

$18\sqrt{8}-8\sqrt{18}=\sqrt{n}\\ \\ 36\sqrt{2}-24\sqrt{2}=\sqrt{n}\\ \\ 12\sqrt{2}=\sqrt{n}\\ \\ \sqrt{288}=\sqrt{n}\\ \\ n=288$

3 0

3 years ago

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