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Lynna [10]
3 years ago
10

Pls help find x and y plsssss

Mathematics
2 answers:
SIZIF [17.4K]3 years ago
5 0

Answer:x=143

Step-by-step explanation: set 128=X-15 add 15 to both sides

Marina CMI [18]3 years ago
3 0

Answer:

x = 67

y = 32

Step-by-step explanation:

Vertical angles are congruent

that means

52 = x- 15

You want to add 15 in both sides

x = 67, and the other angle measures 52 degrees

Same thing applies to 128 and 4y

4y = 128

y = 32

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\bf \left.\qquad \qquad \right.\textit{negative exponents}\\\\
a^{-{ n}} \implies \cfrac{1}{a^{ n}}
\qquad \qquad
\cfrac{1}{a^{ n}}\implies a^{-{ n}}
\qquad \qquad 
a^{{{  n}}}\implies \cfrac{1}{a^{-{{  n}}}}\\\\
-------------------------------

\bf 2\times 10^{-4}-1\times 10^{-5}\implies 2\cdot \cfrac{1}{10^4}-1\cdot \cfrac{1}{10^5}\impliedby 
\begin{array}{llll}
\textit{using the LCD}\\
of~10^5
\end{array}
\\\\\\
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