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Mathematics

2 answers:

FromTheMoon [43]2 years ago

7 0

Answer:

Step-by-step explanation:

frozen [14]2 years ago

4 0

Answer:

the answer is c

Step-by-step explanation:

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If there are about 1 2/5 kilometers in 1 mile,about how many kilometers are in 4 miles?

-BARSIC- [3]

This problem is an example of ratio and proportion. A ratio is a comparison between two different things. You are given the equivalent distance of a 1 2/5 kilometers to 1 mile. Also you are given 4 miles. You are required to find the distance in kilometers of 4 miles. The solution of this problem is,

1 2/5 kilometers /1 mile = distance/ 4 miles
distance = (4 miles) (1 2/5 kilometers /1 mile)
distance = 28/5 or 5.6 kilometers
There are 5.6 kilometers in 4 miles.

7 0

2 years ago

WILL GIVE BRAINLIEST, PLEASE HELP

insens350 [35]

Option B is the odd one out

3 0

3 years ago

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Which function is an odd function?

Mrac [35]

Answer:

Algebraically, f is even if and only if f(-x) = f(x) for all x in the domain of f. A function f is odd if the graph of f is symmetric with respect to the origin. Algebraically, f is odd if and only if f(-x) = -f(x) for all x in the domain of f.

Step-by-step explanation:

7 0

3 years ago

10. Simplify the rational expression by rationalizing the denominator. 3 sqrt 160/sqrt 1350x A) 2 sqrt 15x/15x B) 3 sqrt 160/135

Viefleur [7K]

The simplified expression by rationalizing the denominator is (C) $\frac{4 \sqrt{15x} }{15x}$ .

First we must simplify the expression:
$\frac{3 \sqrt{160} }{\sqrt{1350x} } = \frac{12 \sqrt{10} }{15 \sqrt{6x} } = \frac{4 \sqrt{10} }{5 \sqrt{6x} }$

Then we factor the rational parts and cancel it out:
$\frac{4 \sqrt{2} \sqrt{5} }{5 \sqrt{2} \sqrt{3x} } = \frac{4\sqrt{5} }{5\sqrt{3x} }$

Then we rationalize the expression:
$\frac{4\sqrt{5} }{5\sqrt{3x} } * \frac{\sqrt{3x} }{\sqrt{3x} } = \frac{4 \sqrt{15x} }{5*3x} = \frac{4 \sqrt{15x} }{15x}$

Finally, the simplified expression by rationalizing the denominator is (C) $\frac{4 \sqrt{15x} }{15x}$ .

7 0

3 years ago

You ask a friend to think of a number feom two to twelve. What is the probability that his numberwill ne 4?

antiseptic1488 [7]

The probability that his number will be 4 is one in eleven, or 1/11.

4 0

3 years ago

Read 2 more answers