Pls help. I am not very smart!

Mathematics

2 answers:

Yanka [14]3 years ago

8 0

Answer:

Umm I'm not entirely sure but I think its the last one

jonny [76]3 years ago

4 0

Answer:

3 1/3=−1/2x+(−3)

Step-by-step explanation:

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Look at the pattern below.

jonny [76]

Answer:

21 squares

Step-by-step explanation:

6+5+4+3+2+1=21

7 0

3 years ago

We were never taught this in class, and I understand it, kind of... but i'm just confused with everything.

GaryK [48]

$\bf \cfrac{x^3y}{xy^5}\cdot \cfrac{x^2y^9}{x^8}\implies \cfrac{x^3x^2y^1y^9}{x^1x^8y^5}
\\ \quad \\
\textit{now, using exponent rules, same base, different exponent}
\\ \quad \\
\cfrac{x^{3+2}y^{1+9}}{x^{1+8}y^5}\implies \cfrac{x^5y^{10}}{x^9y^5}\\
----------------------------\\$ $\bf \textit{now, keep in mind that}
\\ \quad \\
a^{-{ n}} \implies \cfrac{1}{a^{ n}}\qquad \qquad

\cfrac{1}{a^{ n}}\implies a^{-{ n}}
\\ \quad \\
% negative exponential denominator
a^{{ n}} \implies \cfrac{1}{a^{- n}}
\qquad \qquad 

\cfrac{1}{a^{- n}}\implies \cfrac{1}{\frac{1}{a^{ n}}}\implies a^{{ n}}
\\ \quad \\
thus\\
----------------------------\\
$ $\bf \cfrac{x^5y^{10}}{x^9y^5}\implies \cfrac{x^5y^{10}}{1}\cdot \cfrac{1}{x^9}\cdot \cfrac{1}{y^5}\implies x^5y^{10}\cdot x^{\boxed{-9}}\cdot y^{\boxed{-5}}
\\ \quad \\
x^5x^{-9}y^{10}y^{-5}\implies x^{5-9}y^{10-5}\implies x^{-4}y^5
\\ \quad \\
\cfrac{1}{x^{\boxed{4}}}\cdot \cfrac{y^5}{1}\implies \cfrac{y^5}{x^4}$

8 0

3 years ago

Is this a function?<br>

zmey [24]

Answer:

yes srry if I'm wrong

.................

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5 0

2 years ago

Sarah is cutting ribbon for a craft project she has 4 feet of ribbon, which must be cut into 7 equal lengths. how long will each

monitta

1. I don’t know exactly what you need but 4 divided by 7 is about 0.57 feet or 6.86 inches
2. If you are allowed excess, then you will have 7 pieces each at 0.5 feet with half a foot left extra

4 0

3 years ago

Find a equation of a line that is perpendicular to y=-4x+3 and passes through the point (4,-1).

Marina86 [1]

Given:

The given equation is:

$y=-4x+3$