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Tomtit [17]
3 years ago
15

Evaluate q^2-5q+4, when q equals -2

Mathematics
1 answer:
Anastasy [175]3 years ago
8 0

Answer:

18

Step-by-step explanation:

q^2 - 5q +4

Let q = -2

(-2)^2 - 5(-2) +4

4  + 10 +4

18

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3) The average age of students at XYZ University is 24 years with a standard deviation of 8 years. Number of students at the uni
otez555 [7]

Answer:

0.1875

Step-by-step explanation:

σM=σ/√N

=8/√7500

=8/86.608

=0.092

Z=(x-μ)/σ/√N

=(25.5-36)/8/√7500

=-10.5/0.0092=-1141.304

Z score = -1.3125

=(27-36)/8/√7500 =

=9/0.0092=978.261

Z score= -1.125

-1.125-(-1.3125)=-1.125+1.3125)= 0.1875

The probability that the sample mean will be between 25.5 and 27 years

P(between 25.5 and 27) = 0.1875

3 0
3 years ago
Find the area of rectangle qrst if the area of rectangle defg is 108 cm2 and the scale factor is 3/4.
Levart [38]
Considering the scale as qrst being 3/4 of defg

108x3 = 324

324/4 = 81

Area is 81 cm^2
3 0
3 years ago
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
vichka [17]

i beleve its C the 3d one down from the top

3 0
3 years ago
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4 x 3/4 is greater than 3/4 , since 4 is greater than 1. True o false
Juliette [100K]

Answer:

Trueeee I guessss

Step-by-step explanation:

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4 0
3 years ago
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Find the radius, diameter and area
Shtirlitz [24]

Answer:

Hey mate.....

Step-by-step explanation:

If your diameter is 12cm then radius is = 6cm and to find the area use the formula pi.r. power 2.....

hope it helps you,

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8 0
3 years ago
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