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3 years ago

Peter has read 12/15 of his book. Has he read about half of his book or amost all of his book

Mathematics

1 answer:

igomit [66]3 years ago

8 0

about half of his book

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The two triangles are similar, What is the length of DE?

horsena [70]

<h2>Answer:</h2>

This is easy. All you need to do is set up a <u><em>proportional relationship</em></u>.

A proportional relationship uses variables to show similarities, in this case, in triangles.

$\frac{2}{3} = \frac{x}{6.3}\\\\3x = 12.6\\\\x = 4.2$

<u><em>x</em></u> represents the missing side.

7 0

3 years ago

each hour the number of bacteria in dr. nall's petri dish tripled what percent is the population compared to the population the

yan [13]

The starting percent is 100%. After one hour, bacteria tripled, so it is 300%.

3 0

3 years ago

Find the value of each expression. Show your work.

Verdich [7]

Answer:

$A) (1.2)^{2} = 1.44$

$B)2^ 3+17-(3\times 4) = 13$

$C)\frac{(9)^2}{(3)^3} = 3$

Step-by-step explanation:

Here, the given expressions are:

A) $(1.2)^{2}$

Solving this, we get

$(1.2)^{2} = 1.2 \times 1.2 = 1.44$

⇒ $(1.2)^{2} = 1.44$

B) $2^ 3+17-(3\times 4)$

Now, solving this, we get

$2^ 3+17-(3\times 4) = (2 \times 2 \times2) + (17 -12)\\=8 + 5 = 13$

⇒ $2^ 3+17-(3\times 4) = 13$

C) $\frac{(9)^2}{(3)^3}$

Simplifying this, we get

$\frac{(9)^2}{(3)^3} = \frac{(9\times9)}{(3 \times 3\times3)} = 3$

⇒ $\frac{(9)^2}{(3)^3} = 3$

4 0

3 years ago

In the figure,

Vitek1552 [10]

Angles 1,7 and 2,8 are alternate exterior angle.

6 0

3 years ago

Read 2 more answers

Number 5 has me going crazy, plz help

Ber [7]

Well, the amount of degrees is 1,980, so plug that in so that the equation is 1980 = (n-2)180. Then, do order of operations. Divide 1980/180, which is 11. Then, just add 2. So, the polygon has 13 sides.

7 0

3 years ago