1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ololo11 [35]
3 years ago
8

The US Postal rates for a first class letter are $0.46 for up to and including 1 ounce $0.66 for 1 to 2 including 2 ounces $0.86

for 2 to 3 including 3 ounces $1.06 for 3 to 3.5 including 3.5 ounces What is the cost for a letter weighing 1.03 ounces?
Mathematics
1 answer:
Scorpion4ik [409]3 years ago
3 0
1.03 oz is in the range 1–2 oz, so will cost $0.66.
You might be interested in
What is the square root of x if x = 25?
scoundrel [369]

Answer:

5 is your answer

Step-by-step explanation:

The \sqrt{25} will equal to 5, because 5^2 = 25

7 0
2 years ago
Read 2 more answers
To test the belief that sons are taller than their​ fathers, a student randomly selects 13 fathers who have adult male children.
KATRIN_1 [288]

Answer:

1) B. The differences are normally distributed or the sample size is large

C. The  sample size mus be large

E. The sampling method results in an independent sample

2) The null hypothesis H₀:  \bar x_1 =  \bar x_2

The alternative hypothesis Hₐ: \bar x_1 <  \bar x_2

Test statistic, t = -0.00693

p- value = 0.498

Do not reject Upper H₀ because, the P-value is greater than the level of significance. There is sufficient evidence to conclude that sons are the same height as their fathers  at 0.10 level of significance

Step-by-step explanation:

1) B. The differences are normally distributed or the sample size is large

C. The  sample size mus be large

E. The sampling method results in an independent sample

2) The null hypothesis H₀:  \bar x_1 =  \bar x_2

The alternative hypothesis Hₐ: \bar x_1 <  \bar x_2

The test statistic for t test is;

t=\dfrac{(\bar{x}_1-\bar{x}_2)}{\sqrt{\dfrac{s_{1}^{2} }{n_{1}}-\dfrac{s _{2}^{2}}{n_{2}}}}

The mean

Height of Father, h₁,  Height of Son h₂

72.4,      77.5

70.6,      74.1

73.1,       75.6

69.9,      71.7

69.4,      70.5

69.4,      69.9

68.1,       68.2

68.9,      68.2

70.5,       69.3

69.4,       67.7

69.5,       67

67.2,       63.7

70.4,       65.5

\bar x_1  = 69.6      

s₁ = 1.58

\bar x_2 = 69.9

s₂ = 3.97

n₁ = 13

n₂ = 13

t=\dfrac{(69.908-69.915)}{\sqrt{\dfrac{3.97^{2}}{13}-\dfrac{1.58^{2} }{13}}}

(We reversed the values in the square root of the denominator therefore, the sign reversal)

t = -0.00693

p- value = 0.498 by graphing calculator function

P-value > α Therefore, we do not reject the null hypothesis

Do not reject Upper H₀ because, the P-value is greater than the level of significance. There is sufficient evidence to conclude that sons are the same height as their fathers  at 0.10 lvel of significance

8 0
3 years ago
Mum bought a litre of orange juice. She filled 5 glasses and had 1/5 of a litre left. How much was in each glass?
avanturin [10]
1/5 of a litre is 0.2 litres
1 litre minus 0.2 litres is 0.8 litres so
0.8 divided by 5 (glasses) is 0.16 litres in each glass
7 0
3 years ago
Please help , write your answer I will be giving 10 points
slamgirl [31]

Answer:

yes it represents the graph accurately

5 0
3 years ago
H = −8(3t − 3)(t + 2)
sergejj [24]

Answer

she be -5

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • A candy company plans to hang posters of a new product in supermarkets. The product is a box of premium chocolates. The art team
    8·2 answers
  • 1. Selecting a red card from a deck of cards. A deck of cards has 13 red hearts, 13 red diamonds, 13 black spades, and 13 black
    7·1 answer
  • durning the second half of a trivia game, Angie scored 867 points in the science round and -332 points in the art round.what was
    14·1 answer
  • Consider the following set of equations:
    14·1 answer
  • Plot the vertices (-2, -8), (-2, 2), and (8, 2).
    6·2 answers
  • Is (0,8) a solution to the following system of inequalities:
    9·1 answer
  • Expand<br> (2x – 3)^4 <br> Someone help please
    14·1 answer
  • Laura was late to class 5 times in September. Each time she was late she missed 48 minutes of
    7·1 answer
  • Are 3x and -8x like terms ?
    9·1 answer
  • Whats 2+2-93+0092 please help
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!