What is the measure of angle x? 42 48 B 138 96 D 132

Mathematics

1 answer:

Mama L [17]3 years ago

8 0

48 (90+42=132 and 180-132=48) the angle measures in triangles add up to 180

You might be interested in

What is 6.7 x (-2.3) round to the nearest hundredth

Vaselesa [24]

Your answer would be -15.41. If you ever need any other kind of help, just ask me.

6 0

3 years ago

Read 2 more answers

Please help please and thanks

Bingel [31]

This will help a lot if you go to desmos! Just graph the equation on there! It’s much easier to see on computer

7 0

3 years ago

Write an equation to represent the following situation. Justin wants to earn 500 minutes on Khan Academy He currently has 120 mi

Alisiya [41]

Answer:

500=120+60

Variable would either be M or D For 60

Step-by-step explanation:

5 0

3 years ago

Find the exact value of tan (arcsin (two fifths)). For full credit, explain your reasoning.

Hitman42 [59]

$\bf sin^{-1}(some\ value)=\theta \impliedby \textit{this simply means}
\\\\\\
sin(\theta )=some\ value\qquad \textit{now, also bear in mind that}
\\\\\\
sin(\theta)=\cfrac{opposite}{hypotenuse}\qquad 
\qquad 
% tangent
tan(\theta)=\cfrac{opposite}{adjacent}\\\\
-------------------------------\\\\$

$\bf sin^{-1}\left( \frac{2}{5} \right)=\theta \impliedby \textit{this simply means that}
\\\\\\
sin(\theta )=\cfrac{2}{5}\cfrac{\leftarrow opposite}{\leftarrow hypotenuse}\qquad \textit{now let's find the adjacent side}
\\\\\\
\textit{using the pythagorean theorem}\\\\
c^2=a^2+b^2\implies \pm\sqrt{c^2-b^2}=a\qquad 
\begin{cases}
c=hypotenuse\\
a=adjacent\\
b=opposite\\
\end{cases}$

$\bf \pm \sqrt{5^2-2^2}=a\implies \pm\sqrt{21}=a
\\\\\\
\textit{we don't know if it's +/-, so we'll assume is the + one}\quad \sqrt{21}=a\\\\
-------------------------------\\\\
tan(\theta)=\cfrac{opposite}{adjacent}\qquad \qquad tan(\theta)=\cfrac{2}{\sqrt{21}}
\\\\\\
\textit{and now, let's rationalize the denominator}
\\\\\\
\cfrac{2}{\sqrt{21}}\cdot \cfrac{\sqrt{21}}{\sqrt{21}}\implies \cfrac{2\sqrt{21}}{(\sqrt{21})^2}\implies \cfrac{2\sqrt{21}}{21}
$

7 0

3 years ago

Select the postulate of equality or inequality that is illustrated.

Mademuasel [1]

Answer: Comparison Postulate

This is the idea that exactly one statement shown below is true

a > b

a = b

a < b

So if you compare two numbers, then either the left value is larger, the left is smaller, or the the left is the same as the value on the right.

4 0

3 years ago