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4 years ago

13points!!!!! 13 POINTS!!!! 13POINTS!!!

Mathematics

1 answer:

goldenfox [79]4 years ago

5 0

A diagonal would be 12 (6+6) cdb is 110 AC should be 10

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(I’m marking brainliest) plzzz help me out!!!

larisa86 [58]

Answer:

14, 16, 18, 20

Step-by-step explanation:

4 0

3 years ago

Use the standard norml distribution or the t-distribution to construct a 99% confidence interval for the population mean. Justif

dalvyx [7]

Answer:

E) we will use t- distribution because is un-known,n<30

the confidence interval is (0.0338,0.0392)

Step-by-step explanation:

Step:-1

Given sample size is n = 23<30 mortgage institutions

The mean interest rate 'x' = 0.0365

The standard deviation 'S' = 0.0046

the degree of freedom = n-1 = 23-1=22

99% of confidence intervals $t_{0.01} =2.82$ (from tabulated value).

$The mean value = 0.0365$

$x±t_{0.01} \frac{S}{\sqrt{n-1} }$

$0.0365±2.82 \frac{0.0046}{\sqrt{23-1} }$

$0.0365±2.82 \frac{0.0046}{\sqrt{22} }$

$0.0365±2.82 \frac{0.0046}{4.690 }$

using calculator

$0.0365±0.00276$

Confidence interval is

$(0.0365-0.00276,0.0365+0.00276)$

$(0.0338,0.0392)$

the mean value is lies between in this confidence interval

(0.0338,0.0392).

Answer:-

using t- distribution because is unknown,n<30,and the interest rates are not normally distributed.

4 0

3 years ago

A w=-8 B w=-5 C w=5 D w=8

algol [13]

Answer:

Step-by-step explanation:

Plug in every scenario, in see if it equal to each other.

D is the only one that is equal.

8 0

3 years ago

A batman costume costs $20. A harlequin costume costs twice as much as the batman costume. How much does a harlequin costume cos

Gnoma [55]

Answer:the harleyquin costume would cost 40 $

Step-by-step explanation: as given the batman costume costs 20$. so 20 times 2 equals 40$.

20*2= 40$

6 0

3 years ago

Read 2 more answers

Leo is planning a trip with his friends by renting a bus. He found that the bus cost $75.50 for 5 people if he is planning to go

kolezko [41]

Step-by-step explanation:

75.50 x 13

=151 is the anser for 10 people you need to figure out how much it costs per person to find your complete answer and don't forget get that your adding "Leo " into the eqation

8 0

3 years ago