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erastova [34]
3 years ago
5

HELP?

Mathematics
2 answers:
nadya68 [22]3 years ago
8 0
A. 16.49
b. 5.09
c. 4.09

Let me know if you have questions!
JulijaS [17]3 years ago
3 0
A. 16.487=16.49
b. 5.090=5.09
c.4.0899=4.09
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At President Obama's inauguration in 2013, the newspaper headlines stated there were about 800,000 people in attendance. If the
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A store sells cards on each of which there are drawing of different flowers: either roses, either daisies, either tulips, either
valkas [14]

The greatest number of different cards based on the permutations is 144.

<h3>How to compute the value?</h3>

From the information given, there are 4 versions which are either roses, daisies, tulips, or sunflowers and this is further divided into either Happy birthday, anniversary, or holidays.

Therefore, the greatest number of different cards will be:

= 4! × 3!

= 24 × 6

= 144

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2 years ago
Taylor has 27 books in her book collection. She keeps 1 book beside her bed and keeps the remaining books in a bookcase. She can
Rus_ich [418]

27-1= 26 (the one book beside her bed)

26/8= 3.25, but there isn’t .25 of a shelf, so she needs 4 shelves to fit all of her books

5 0
3 years ago
Mary has scored 99, 83, 74, and 69 on her previous four tests. What score does she need on her next test so that her average
Gemiola [76]

Answer:

66

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mean = the sum of the value / the number of the value

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5 0
3 years ago
Give the point (or points) of intersection of x2 + y2 = 5 and y = 2/3x + 1 Round all decimal values to 2 places. Your answer mus
Dennis_Churaev [7]

x² + y² = 5

y = 2x/3 + 1

In a simple way to find the intersections you can just throw the y value in the other equation, so

x² + y² = 5

x² + (2x/3 + 1)² = 5

x² + (2x/3)² + 2.2x/3.1 + 1² = 5

x² + 4x²/9 + 4x/3 + 1 = 5

13x²/9 + 4x/3 + 1 - 5 = 0

13x²/9 + 4x/3 - 4 = 0

Multiply by 9

13x² + 12x - 36 = 0

Δ = b² - 4.a.c

Δ = 12² - 4 . 13 . -36

Δ = 144 - 4. 13 . -36

Δ = 2016

There are 2 real roots.

x = (-b +- √Δ)/2a

x' = (-12 + √2016)/2.13

x'' = (-12 - √2016)/2.13

x' = 32,8998886412873 / 26

x'' = -56,8998886412873 / 26

x' = 1,2653803323572037

x'' = -2,188457255434127

Rounding

x' = 1,27

x'' = -2,19

Now we need to put this value in the y equation to know the y coordinate.

y = 2x/3 + 1

y' = 2.1,27/3 + 1

y' = 2,54/3 + 1

y' = 1,8466666...

y' = 1,85

y = 2x/3 + 1

y'' = 2.(-2,19)/3 + 1

y'' = -4,38/3 + 1

y'' = -0,46

So the points are: (1,27;1,85) and (-2,19;-0,46)

3 0
4 years ago
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