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aleksley [76]
3 years ago
15

10 POINTS!! PLEASE HELP Identify which functions have complex roots by selecting the function names on the provided coordinate p

lane.
A ?
B ?
C ?
D ?
E ?
Or
F ?

Mathematics
2 answers:
dusya [7]3 years ago
7 0
It's the graphs that don't touch the x-axis have complex roots. Roots are the points where the parabola touches the x-axis. A,C and E all cross/touch the x-axis so they have real roots.


non-real or complex root parabolas are: B, D, F
weeeeeb [17]3 years ago
6 0

Answer:

The functions that have complex roots are functions B; D; and F

Step-by-step explanation: Based on the graph, look for any parabolas, or functions, that appear to not touch the x or y axis.


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morpeh [17]

Answer:

50

Step-by-step explanation:

140- 40=100

100÷2=50

x=50

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At the end of the summer a store marks down the outdoor furniture 8% a family bought 4 chairs in June at 35$ each then 2 more ch
frosja888 [35]

Answer:

$204.4

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What is the greatest common factor of 7, 4, and 39?
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6 0
2 years ago
Read 2 more answers
The probability distribution for the rate of return on an investment is
babymother [125]

Answer:

a)0.7

b) 10.03

c)  0.0801

Step-by-step explanation:

Rate of return   Probability

9.5                           0.1

9.8                           0.2

10                             0.3

10.2                          0.3

10.6                          0.1

a.

P(Rate of return is at least 10%)=P(R=10)+P(R=10.2)+P(R=10.6)

P(Rate of return is at least 10%)=0.3+0.3+0.1

P(Rate of return is at least 10%)=0.7

b)

Expected rate of return=E(x)=sum(x*p(x))

Rate of return(x)   Probability(p(x))    x*p(x)

9.5                           0.1                       0.95

9.8                           0.2                      1.96

10                             0.3                        3

10.2                          0.3                        3.06

10.6                          0.1                       1.06

Expected rate of return=E(x)=sum(x*p(x))

Expected rate of return=0.95+1.96+3+3.06+1.06=10.03

c)

variance of the rate of return=V(x)=sum(x^2p(x))-[sum(x*p(x))]^2

Rate of return(x)   Probability(p(x))    x*p(x)    x²*p(x)

9.5                           0.1                       0.95       9.025

9.8                           0.2                      1.96         19.208

10                             0.3                       3             30

10.2                          0.3                       3.06        31.212

10.6                          0.1                       1.06         11.236

sum[x²*p(x)]=9.025+19.208+30+31.212+11.236=100.681

variance of the rate of return=V(x)=sum(x²*p(x))-[sum(x*p(x))]²

variance of the rate of return=V(x)=100.681-(10.03)²

variance of the rate of return=V(x)=100.681-100.6009

variance of the rate of return=V(x)=0.0801

6 0
3 years ago
PLEASE HELP ASAP! IM DOING MY TEST AND CANT FIGURE IT OUT
alekssr [168]

hyy it means ur copying..yes right..xd lol

copycat

7 0
2 years ago
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