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GuDViN [60]
3 years ago
10

A catalog sales company promises to deliver orders placed on the Internet within 3 days.​ Follow-up calls to a few randomly sele

cted customers show that a​ 95% confidence interval for the proportion of all orders that arrive on time is 70​%±88​%.
A. What does this​ mean? For each​ conclusion, state whether it is correct or not and explain why. Complete parts a through e below. ​
B. Between 62​% and 78​% of all orders arrive on time. State whether the conclusion is correct or not and explain why. Choose the correct answer below.
Mathematics
1 answer:
Tju [1.3M]3 years ago
3 0

Answer:B. Between 62​% and 78​% of all orders arrive on time. State whether the conclusion is correct or not and explain why. Choose the correct answer below.

Step-by-step explanation:

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You will need 90 feet of fencing to put all the way around a rectangular garden. The width of the garden is 10 feet. What is the
WITCHER [35]
If it is a rectangle then the sides of the width would be the same. Also with the sides of the length. So add the widths, 10+10=20. Subtract 20 from 90, 90-20=70. Divide 70 by 2, 70÷2=35.
 The length would be 35 feet.
4 0
3 years ago
If tan A= 1,what is the value of A​
xxMikexx [17]

Answer:

45°

Step-by-step explanation:

Ok, so, there is one thing I need to point out. 45° is the 'main' value if you assume 0°<A<180°. However, sin,  cos, and tan have different periods which means that there are infinite values of A where tanA = 1. The general notation that you could put is A = 45° + (n*180°) where n is just a number. For example, if n = 1, you would get an angle of 225°. If you plug tan225° into the calculator, you get 1. If you did radians, you could write A = \frac{\pi}{2} + n\pi. But ignore that if you haven't. Basically, the answer would be 45° if you are assuming A is between 0° and 180°. Also, you could have just used your calculator and types inverse tan function (tan^{-1}) and plug in 1 to find the primary answer of 45.

6 0
3 years ago
Solve for r. 60 = -24 + 12r​
neonofarm [45]

Answer:

r = 7

Step-by-step explanation:

60 = -24 + 12r​

<u>+24  +24</u>

84 = 12r

84 ÷ 12 = r

7 = r

Check:

60 = -24 + 12r

-24 + 12(7)

-24 + 84 = 60

3 0
3 years ago
Read 2 more answers
If y varies directly with x and y = 87 when x = 3, find y when x = 5. Write and solve a direct variation equation to find the an
Amanda [17]

Answer:

145

Step-by-step explanation:

y=kx

87=3k

k= 87/3

k= 29

y=29×5

y= 145

5 0
2 years ago
Helpppppp fastttt ASAP
Xelga [282]

Answer:

It is an octogan and it isn't regular, you are correct.

Step-by-step explanation:

Normal octagons look like a stop sign. This one looks like a star.

6 0
2 years ago
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