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garik1379 [7]
3 years ago
8

One of the students was removed from the survey and replaced with a different student’s data.

Mathematics
1 answer:
Nostrana [21]3 years ago
3 0

Answer:

immma send you the link friend me on here Step-by-step explanation:

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F(x)=-4x^2+10x-8
vazorg [7]

Answer:

Step-by-step explanation:

a = - 4

b = 10

c = - 8

The discriminate is

D = b^2 - 4ac

D = 10^2 - 4*(-4)(-8)

D = 100 -  128

D = - 28 which is not a nice number

Because the Discriminate has a minus result, there are no real zeros.

6 0
3 years ago
HELP asap AB=85m Find the length of Line CD
Aleks [24]
CD = x
BC = y
AB = 85
BD = BC+CD = y+x

tan(angle) = opposite/adjacent
tan(28) = BC/AB
tan(28) = y/85
85*tan(28) = y
y = 85*tan(28)
y = 45.1953016912257

tan(angle) = opposite/adjacent
tan(31) = BD/AB
tan(31) = (y+x)/85
tan(31) = (45.1953016912257+x)/85
85*tan(31) = 45.1953016912257+x
51.0731526173427 = 45.1953016912257+x
51.0731526173427-45.1953016912257 = 45.1953016912257+x-45.1953016912257
5.877850926117 = x
x = 5.877850926117

So CD is roughly 5.877850926117 meters

8 0
3 years ago
I really need plz help ASAP the right answer will be marked of brainlest
diamong [38]

Answer:

40

Step-by-step explanation:

5*4*2

4 0
3 years ago
Read 2 more answers
A quadrilateral has congruent diagonals. It is probably a( n) ______.
____ [38]
<span>A quadrilateral has congruent diagonals. It is probably a <u>Square</u></span>
7 0
3 years ago
Bella had already read 20% of the book before her teacher assigned it to the class. She is choosing between two options to finis
Lubov Fominskaja [6]

Answer:

How big is the book?

If it has more than 96 pages remaining 25% each night is quicker if it has less that 96 or less remaining 24 pages a night is faster

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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