3 years ago

Write -4x^2-16x-14 in vertex form.

Mathematics

1 answer:

frutty [35]3 years ago

5 0

Answer:

(-2,2)

Step-by-step explanation:

hope this helps :)

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A roll of 100 pennies is in the shape of a right cylinder. Each penny has a diameter of 0.75 inches and a thickness of 0.04 inch

zalisa [80]

Answer:

(B) π(0.75/2)²(4)

Step-by-step explanation:

The volume formula:

V = πr²h

Given:

d = 0.75 in ⇒ r = d/2 = 0.75/2 in
h = 0.04 in

The volume of each penny:

V = π(0.75/2)²(0.04)

The volume of 100 pennies:

V = 100*π(0.75/2)²(0.04) = π(0.75/2)²(4)

Correct choice is B

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3 years ago

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If it takes 10 machines 10 minutes to make 10 widgets, how long would it take 50 machines to make 50 widgets? minutes

Allushta [10]

If it takes 10 machines 10 minutes to make 10 items, I would assume it would take 50 machines 50 minutes to make 50 items. Hope this helps :)

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3 years ago

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27 1/5 over 4/5 as a unit rate

REY [17]

Answer:

$\frac{34}{1}$ or $34$

Step-by-step explanation:

we know that

To find the unit rate divide 27 1/5 by 4/5

but first

Convert mixed number to an improper fraction

$27\frac{1}{5}=27+\frac{1}{5}=\frac{27*5+1}{5} =\frac{136}{5}$

$\frac{136}{5}:\frac{4}{5}=\frac{136}{4}=\frac{34}{1}$

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3 years ago

Translate into algebraic equation - a number plus 15 exceeds twice that number by 3

bija089 [108]

Answer:

n + 15 > (2n)/3

hope this helps! <3

3 0

2 years ago

at the library, you find 9 books on a certain topic. the librarian tells you that 55% of the books on this topic have been signe

e-lub [12.9K]

Multiply 9 books by 55% by doing

9 x .55 = 4.95

We can't have 4.95 books, though so it rounds down to 4 because you can't just add another .05.

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3 years ago