3 years ago

Ratio 15 to 35 written as a fraction

Mathematics

1 answer:

PilotLPTM [1.2K]3 years ago

5 0

15/35

3/7 the answer is 3/7 which is written in the lowest terms

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Write 127.90 in expanded form

yan [13]

127.90 in expanded form:

100 + 20 + 7 + 0.9

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3 years ago

Answers now please!

gulaghasi [49]

Hhzbxbxnnsjshsjjsjsjs

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3 years ago

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%20%7B%7D%5E%7B2%7D%20-%204%20%7D%7B%20%5Csqrt%7Bx%20%7B%7D%5E%7B2%7D%20-%206x%2

Nimfa-mama [501]

First of all, we can observe that

$x^2-6x+9 = (x-3)^2$

So the expression becomes

$\dfrac{x^2-4}{\sqrt{(x-3)^2}} = \dfrac{x^2-4}{|x-3|}$

This means that the expression is defined for every $x\neq 3$

Now, since the denominator is always positive (when it exists), the fraction can only be positive if the denominator is also positive: we must ask

$x^2-4 \geq 0 \iff x\leq -2 \lor x\geq 2$

Since we can't accept 3 as an answer, the actual solution set is

$(-\infty,-2] \cup [2,3) \cup (3,\infty)$

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2 years ago

Circle O is shown below. the diagram is not drawn to scale. 73°

zepelin [54]

Answer:
53.5

Explanation:
Since triangle AOB is an isosceles triangle (AO = OB), the base angles of the triangle are 53.5. (180-73 = 107, 107/2 = 53.5)

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2 years ago

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Write the sum of 83 and<br> a numbers in a mathematical <br> atical way.

vaieri [72.5K]

Answer:

$83 + n$

Step-by-step explanation:

The sum of 83 and a number would be $83 + n$ as an expression, where $n$ is "said number".

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3 years ago

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