Hii! i’ll give brainliest pls help

Mathematics

2 answers:

podryga [215]2 years ago

8 0

Answer:

the first answer

Step-by-step explanation:

Arisa [49]2 years ago

7 0

Answer:

I think it's many buildings are crumbled

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Dane used a ruler and a protractor to draw a rhombus with a side that is 4 cm in length and an angle that measures 110°. Choose

Yanka [14]

Answer:

70°

Step-by-step explanation:

Adjacent angles in a parallelogram are supplementary. The missing angle is ...

180° -110° = 70°

6 0

3 years ago

Solve both by substitution method (algebra 2) and show work please<br><br> -2x-7y=22<br>-7x-5y=-1

Alex17521 [72]

$\bf \begin{cases}
-2x-7y=22\\
-7x-5y=-1
\end{cases}\qquad \textit{let's solve the \underline{second one} for "x"}
\\\\\\
-7x-5y=-1\implies -7x=5y-1\implies x=\cfrac{5y-1}{-7}
\\\\\\
\boxed{x=\cfrac{1-5y}{7}}\impliedby \textit{now, let's substitute it in the \underline{first one}}
\\\\\\$

$\bf -2\left( \frac{1-5y}{7} \right)-7y=22\implies \cfrac{10y-2}{7}-7y=22
\\\\\\
\textit{now, let's multiply both sides by 7, to toss the denominator}
\\\\\\
7\left( \cfrac{10y-2}{7}-7y \right)=7(22)\implies 10y-2-49y=154
\\\\\\
-39y=156\implies y=\cfrac{154}{-39}\implies \boxed{y=-4}
\\\\\\
\textit{now, let's use that in the \underline{first one}}
\\\\\\
-2x-7(-4)=22\implies -2x+28=22\implies 6=2x\implies \cfrac{6}{2}=x
\\\\\\
\boxed{3=x}$

4 0

2 years ago

#7-9 please help with an explanation,, will mark brainliest

Mandarinka [93]

Answers:

Step-by-step explanation:

To find out which is greater, we must eliminate the radical symbol.

$\sqrt{88}$ = 9.38083151965