3 years ago

I need help with this

Mathematics

1 answer:

Pepsi [2]3 years ago

5 0

Answer:

the answer is 0.7>0.68

Step-by-step explanation:

because the seven is bigger than 6.8

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Yanka [14]

Answer:

b or 150

Step-by-step explanation:

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4 years ago

61 random samples of city rent prices are selected from a normally distributed population the samples have a mean of $738 and a

Alenkinab [10]

Answer:

(728, 748)

Step-by-step explanation:

You need the Z value which for 95% confidence interval is 1.96. The mean is $738 and the standard deviation of $41.

$X-Zs/\sqrt{n} \\ X+Zs/\sqrt{n}$

Therefore we can calculated the confidence interval

$738-1.96\cdot{41}/\sqrt{61} =738-10.3$

$738±10.3$

The interval is (728,748)

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3 years ago

The variable Z varies jointly with X and Y Z equals 36 when x equals two and Y equals 3 write the equation that relates the vari

Veronika [31]

Answer:

Step-by-step explanation:

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3 years ago

HELP PLEASE!!!!!!!

iragen [17]

Answer:

10x-10

x-width

Step-by-step explanation:

width-x

4x-5-length

formula for P of rectangle- (a+b)2

(x+4x-5)2

(5x-5)2

=10x-10

5 0

3 years ago

Keith had 694 green,yellow and blue marbles.He had 3 times as many blue marbles as yellow marbles. there were 90fewer green than

nikdorinn [45]

Answer:

336 blue marbles

Step-by-step explanation:

694= x+3x+3x-90

694=7x-90

784=7x

x=112

3x=336

3x-90=246

6 0

3 years ago