3 years ago

Vertical angles are angles that are congruent.

Mathematics

1 answer:

alex41 [277]3 years ago

8 0

True, vertical angles are always congruent.

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What is the area of the triangle 4.5 ft tall and 8.7 ft wide?

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Answer:

39.15

Step-by-step explanation:

For area you just do 4.5 times 8.7 and then you get 39.15

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Brian invests $10,000 in an account earning 4% interest, compounded annually for 10 years. Five years after Brian's initial inve

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Brian will get 40,000 then Chris will get 70,000

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Help me for number 14 & 15

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#15 50y+10 is the answer

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3 years ago

What is the answer (6√2)(-3√5)

alexgriva [62]

Solution:

$- 18 \sqrt{10}$

<h3>Step-by-step explanation:</h3>

<h3>1. Apply rule : a(-b) = -ab</h3>

$= - 6 \sqrt{2} \: \: • \: \: 3 \sqrt{5}$

2. Apply radical rule : $\sqrt{a} \sqrt{b} = \sqrt{ab}$ , $a \geqslant 0$ , $b$

$= 6 \sqrt{2 \: • \: 5} \: • \: 3$

<h3>3.Multiply the numbers : 2 • 5 = 10</h3>

= $6 \sqrt{10} •3$

<h3>4.Multiply the numbers : - 6 • 3= - 18</h3>

$= - 18 \sqrt{10}$

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2 years ago

2. Rich wrote a novel that sells for n dollars each. He received a bonus of $50,000 to sign the

Yuki888 [10]

The equation which represent total amount of income he earns from selling book is, $A=50000+\frac{109}{100}bn$

Since, Selling price of one novel is n dollars

So, selling price of b books is, $n*b=nb$

Since, he receives 9% commission on each book sale.

So, total commission he receives on selling of b books is,

$nb*\frac{9}{100}=\frac{9}{100}nb$

And also he received a bonus of $50,000 to sign the contract to write the book,

So, total amount of income he earns is represented by A,

$A=50000+bn+\frac{9}{100}bn\\\\A=50000+\frac{109}{100}bn$

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