2 years ago

How to find for 19 in the happy number

Mathematics

2 answers:

Gnoma [55]2 years ago

6 0

Answer:

Just hope for the best

Step-by-step explanation:

Anuta_ua [19.1K]2 years ago

5 0

Hope u get lucky ig. cross ur fingers or sum

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Alex has x number of baseball cards Danny has 10 more baseball cards than Alex how many baseball cards does Danny have:write you

Vilka [71]

Answer:

x+10

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2 years ago

A recipe states that 5 servings of peanuts have 1,250 calories. How many servings is 375 calories of peanuts? *

inysia [295]

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2 years ago

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The picture below shows a box sliding down a ramp:

algol [13]

Answer:

11.3 ft

Step-by-step explanation:

sin = opp/hyp

hyp = opp/sin

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Use calculator

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8 0

2 years ago

What do i do next please

emmasim [6.3K]

Now subtract, then add.
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2 years ago

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<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