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frozen [14]
2 years ago
12

PLEASE HELP WILL GIVE BRAINLIEST

Mathematics
1 answer:
Dovator [93]2 years ago
8 0
The second one is right
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Draw a quick pic to show 2.46+0.78
Mashcka [7]
Just draw like the 2 hundredths, 4 tens, and 6 ones
And then draw 7 tens and 8 ones
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3 years ago
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1)4-2(x + 19) = 50<br> 2)7(x-3)-14=70
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2x+38=50
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Help pleaseeeeeeeeeeee
Amiraneli [1.4K]

volume = \pi \times  {r}^{2} \times h \\ volume = 3.142 \times (10 \div 2)^{2} \times 18 \\ volume \:  = 3.142 \times 25 \times 18 \\ volume = 1413.9{cm}^{3}

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What the domain and range is for the function f(x) = x2 + 4x - 21.
prisoha [69]

Answer:

Step-by-step explanation:

Please use " ^ " to denote exponentiation:  f(x) = x^2 + 4x - 21.

This function has a graph which is a parabola that opens up.

Its vertex is found by completing the square:

x² + 4x + 4 - 4 - 21, or

 (x + 2)² - 25

Comparing this to the standard equation

 (x - h)² + k, we see that h = -2 and k = -25.

Thus, the vertex (and the minimum of this function) is (-2, -25).

Thus, the range is [-25, ∞ ).  This being a polynomial function, it has no restrictions on the domain:  the domain is (-∞, ∞ )

7 0
3 years ago
. You and a friend have dinner at a restaurant . Your meal costs $15.85 and you leave an 18% tip and your friend's meal cost $14
Allushta [10]

Answer:

$1.54

Step-by-step explanation:

18% of $15.85 is 2.853, so your total is $18.703

20% of $14.30 is 2.86, so their total is $17.16

So the difference is $1.543, rounded (since your dealing with money) would be $1.54

3 0
3 years ago
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