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3 years ago

What is 0.45 as a fraction how do I show my work

Mathematics

2 answers:

g100num [7]3 years ago

7 0

45/100 = 9/20

Work: divide by 5

katovenus [111]3 years ago

5 0

0.45 as a fraction is 45/100 which is simplified to 9/20 when u divide by 5

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Prove 2√(x) + 1/√(x + 1) <= 2√(x+1) for all x in [0,inf)

EleoNora [17]

Start by multiplying each side of the inequality by $\sqrt{x + 1}$ and simplifying:

$2 \sqrt x + \frac{1}{\sqrt{x+1}} \leq 2 \sqrt{x + 1}$
$(2 \sqrt x + \frac{1}{\sqrt{x+1}})(\sqrt{x + 1}) \leq (2 \sqrt{x + 1})(\sqrt{x + 1})$
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From here, we can square both sides to get

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3 0

2 years ago

Please help me to solve this equation<br><br><img src="https://tex.z-dn.net/?f=ax%20-%20by%20%3E%20c" id="TexFormula1" title="ax

slega [8]

Given: ax-by>c

Subtract ax on both sides: -by>-ax+c

Divide both sides by -b: y<(-ax+c)/-b

Simplify: y<(ax-c)/b

your answer: y<(ax-c)/b

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3 years ago

Given a 45-45-90 triangle find the length of segment AB

guapka [62]

So, length of AB is 5

3 0

2 years ago

What's 2\5 =12/n solving proportions

gogolik [260]

<span>Cross multiply: 2 * n = 5 * 12

Simplifying 2 * n = 5 * 12

Multiply 5 * 12 2n = 60

Solving 2n = 60

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

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3 years ago

What is the midpoint of (0,0.55) and (-3,6)

Contact [7]

Answer:

(-1.5, 3.275)

Step-by-step explanation:

midpoint = ( x1+X2/2 , y1+y2/2)

=(0+(-3)/2, 0.55+6/2)

=( -3/2, 6.55/2)

=( -1.5, 3.275)

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2 years ago