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Vaselesa [24]
3 years ago
8

For the function y=-2x^2 + 4x + 1, what are the coordinates of the vertex? Is it a maximum or

Mathematics
1 answer:
Len [333]3 years ago
6 0

Answer:

the max is (1,3) and the vertical intercept it (0,1)

Step-by-step explanation:

if you need step by step use photomath it helps.

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Ali wants to buy a piano. The piano measures 19/4 ft long. She has a space 5ft long for the piano in her house. Does she have en
anzhelika [568]

Answer:

yes

Step-by-step explanation:

19/4 =4 reminder 3

6 0
3 years ago
Marquis wrote the linear regression equation y=1.245x - 3.684 to predict the cost, y, of x songs purchased. Marquis spent $40 on
jasenka [17]
What you should do for this casp is to use the given expression and clear the value of x.
 We have then:
 y = 1.245x - 3.684
 Clearing x:
 1.245x = (y + 3.684)
 x = (y + 3,684) / (1,245)
 Substituting the value of y:
 x = ((40) +3,684) / (1,245) = 35.09
 x = 35
 answer:
 the best estimate of the number of songs that Marquis purchased is 35
4 0
4 years ago
Read 2 more answers
7 Here is a circular pond, surrounded by a path Calculate the area of (a) the pond (b) the path. Give your answers to the neares
kow [346]

Answer:

ambot wa sad ko kabalo unya pagpatabang nalang sa uban

5 0
3 years ago
Select from the drop-down menus to correctly complete the statement.
gogolik [260]
First menu: Left

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7 0
3 years ago
For positive integers $n$, let $f(n)$ return the smallest positive integer $k$ such that $\frac{1}{k}$ has exactly $n$ digits af
disa [49]

Answer:

There are a total of 2011 integer divisors.

Step-by-step explanation:

The only primes p such that 1/p has finite spaces after the coma are 2 and 5. If we divide a number with last digit odd we will obtain 1 extra digit after the decimal point and if we divide a number by 5 we will obtain 1 more digit if that number has a last digit in the decimal which is not a multiple of 5.

If we take powers of those primes we will obtian one more digit each time. In order to obtain more digits it is convinient to divide by a power of 2 instead of a power of 5, because the resulting number will be smaller.

If we want 2010 digits after the decimal point, we need to divide 1 by 2 a total of 2010 times, hence f(2010) = 2²⁰¹⁰, which has as positive integer divisors every power of 2 between 0 and 2010, hence there are a total of 2011 integer divisors of f(2010).

3 0
4 years ago
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