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4 years ago

About geometry angles

Mathematics

1 answer:

kvv77 [185]4 years ago

4 0

Assuming the two lines are parallel, angle y = 20°

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|7| What does this mean?

Elza [17]

Absolute value of 7. Any real numbers in the absolute sign would equal to the positive value.

Definition

$\large \boxed{ |x| = \begin{cases} x \: \: \: \: (x \geqslant 0) \\ - x \: \: \: \: (x < 0) \end{cases}}$

If we substitute x = 7 in. Answer by using the definition of absolute value. Note that we only substitute x = 7 in x and not -x since 7 is greater than 0 and not less than 0.

$\large{ |7| = 7 \: \: \: \: (x \geqslant 0)}$

You may also be wondering what will happen if we substitute x = any negative numbers.

$\large{ | - 7| = - ( - 7) \: \: \: \: (x < 0)} \\ \large \boxed{ | - 7| = 7}$

Because -7 is less than 0. We substitute in -x and not x. This is the definition of absolute value. But to understand it easily, any numbers in absolute value have to equal to their positive value.

Conclusion

|7| means the absolute value of 7.
|7| is 7.
|x| is x when x ≥ 0 but -x when x < 0

Let me know if you have any doubts regarding the absolute value through comment!

7 0

3 years ago

Which is equivalent to 80 Superscript one-fourth x?

Neporo4naja [7]

Answer:

The equivalent statement is $(\sqrt[4]{80})^{x}$ ⇒ 2nd answer

Step-by-step explanation:

* Lets explain how to solve the problem

- Any root can be a fraction power

- Ex: $\sqrt{a}=a^{\frac{1}{2}}$

$\sqrt[3]{a}=a^{\frac{1}{3}}$

$\sqrt[4]{a}=a^{\frac{1}{4}}$

$\sqrt[n]{a}=a^{\frac{1}{n}}$

* The expression is $(80)^{\frac{1}{4}x}$

∵ $(80)^{\frac{1}{4}x}$ can be written as $(80^{\frac{1}{4}})^{x}$

∵ $(80)^{\frac{1}{4}}=\sqrt[4]{80}$

∴ $(80^{\frac{1}{4}})^{x}$ = $(\sqrt[4]{80})^{x}$

* The equivalent statement is $(\sqrt[4]{80})^{x}$

3 0

3 years ago

Read 2 more answers

This is easy but I’m just too dumb

tangare [24]

You see how the a increases by 4 whenever b increases by one?

So, the equation is a=4b

Hope this helps!

5 0

3 years ago

I need help ASAP on this one please.

Paul [167]

All I did was add all A's, B's, and C's separately. Than I added them all together and got 316 total surface area. I tried but I learned this sooo long ago so i'm sorry if you get it wrong. Good Luck!

4 0

4 years ago

Which change would make the statement below true? 2.309 rounded to the nearest tenth is 2.4.

elixir [45]

Answer:

2.3

Step-by-step explanation:

2.309 is less the 2.500 so you would need to round down

5 0

3 years ago

About geometry angles​

About geometry angles