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kati45 [8]
3 years ago
6

Help please, don’t understand this.

Mathematics
1 answer:
astraxan [27]3 years ago
7 0

Answer:

c

Step-by-step explanation:

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Which system has no solutions?
seraphim [82]

Answer:

2nd option

y > 6 and y < 2

Step-by-step explanation:

as the value of y can not be greater than 6 and less than 2 at the same time, the 2 inequalities have no common solutions

theefore no solution

8 0
3 years ago
Help with this problem?
ankoles [38]
3(x-8)=12
I got this equation since there are three of the "x-8" sections that add up to the twelve length bar above
5 0
3 years ago
Please help, see attachment
Black_prince [1.1K]

Answer:

The length of DB is 8

Step-by-step explanation:

I know it doesn't look EXACTLY like the one in the diagram but I just followed the measurements provided

4 0
3 years ago
Americans receive an average of 20 Christmas cards each year. Suppose the number of Christmas cards is normally distributed with
soldier1979 [14.2K]

The distribution of X is X ~ N (20 , 6) and the probability that this American will receive no more than 24 Christmas cards this year is 0.7486.

<h3>Probability</h3>

a. Distribution

X ~ N (20 , 6)

b. P(x ≤24)

= P[(x - μ ) / σ  (24 - 20) / 6]

= P(z  ≤0.67)

=  0.74857

=0.7486

Hence:

Probability = 0.7486

c. P(21 < x < 26)

= P[(21 - 26)/ 6) < (x - μ  ) / σ   < (24 - 20) / 6) ]

= P(-0.83 < z < 0.67)

= P(z < 0.67) - P(z < -0.)

=  0.74857- 0.2033

= 0.54527

Hence:

Probability =0.54527

d. Using standard normal table ,

P(Z < z) = 66%

P(Z < 0.50) = 0.66

z = 0.50

Using z-score formula,

x = z×  σ +  μ

x = 0.50 × 6 + 20 = 23

23 Christmas cards

Therefore the distribution of X is X ~ N (20 , 6) and the probability that this American will receive no more than 24 Christmas cards this year is 0.7486.

Learn more about probability here:brainly.com/question/24756209

#SPJ1

8 0
2 years ago
What is the sum of 3/4 and 4/5?​
dybincka [34]

Answer:

your answer is 1.5

Step-by-step explanation:

3/4 simpified is 0.75 + 4/5 simplied is 0.8

0.75+0.8=1.5

3 0
2 years ago
Read 2 more answers
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