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3 years ago

Select the correct answer from each drop-down menu.

Mathematics

2 answers:

Tomtit [17]3 years ago

6 0

21 miles hope this helps

masha68 [24]3 years ago

3 0

Answer:

She rode her bike 21 miles

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Write this number in a scientific notation 36,300,000

ZanzabumX [31]

Answer:

Step-by-step explanation:

Move the decimal place over 7 places to the left which means adding to the exponent.

3.63 x 10^7

8 0

2 years ago

Read 2 more answers

A book is 0.33 meters long. How many millimeters long is it?

Phoenix [80]

we know that

$1\ meter=1,000\ millimeters$

by proportion

Find how many millimeters are in $0.33$ meters

$\frac{1,000}{1} \frac{mm}{m} =\frac{x}{0.33} \frac{mm}{m} \\ \\x=1,000*0.33 \\ \\ x=330\ mm$

therefore

<u>the answer is</u>

$330\ mm$

7 0

3 years ago

Question number 8. Prove that 3 + √5 is an irrational number.

Marina86 [1]

Answer :

Let's assume the opposite of the statement i.e., 3 + √5 is a rational number.

$\\ \sf \: 3 + \sqrt{5} = \frac{a}{b} \\ \\ \qquad \: \tiny \sf{(where \: \: a \: \: and \: \: b \: \: are \: \: integers \: \: and \: \: b \: \neq \: 0)} \\$

$\\ \sf \: \sqrt{5} = \frac{a}{b} - 3 = \frac{a - 3b}{b} \\$

Since, a, b and 3 are integers. So,

$\\ \sf \: \frac{p - 3b}{b} \\ \\ \qquad \tiny \sf{ \: (is \: \: a \: \: rational \: \: number \:) } \\$

Here, it contradicts that √5 is an irrational number.

because of the wrong assumption that 3 + √5 is a rational number.

$\\$

Hence, 3 + √5 is an irrational number.

7 0

3 years ago

Which would be the right one????

Mademuasel [1]

B would be the right one

6 0

3 years ago

How do you do it<br> .Thank you

GrogVix [38]

An improper fraction is when the numerator is greater. For example, 1 7/8 = 15/8

5 0

3 years ago