Answer:
a) Yes, because the sample sizes of both groups are greater than 5.
Step-by-step explanation:
Sample size of men is 41 and sample size of women is 56. Thus, we can conclude that;
Yes the requirements are satisfied to perform the hypothesis test because the sample sizes of both groups are greater than 5.
Option A is correct.
Caroline needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer for 2.75 hours and charged her $114 for parts. The total was $320.25. Write and solve an equation which can be used to determine xx, the cost of the labor per hour.
bernie helped design a magician costume for a school play
Answer:
and.........................................
Step-by-step explanation:
The ribbon cost per foot $0.6 per foot
Step-by-step explanation:
Total number of ribbon used = (5.75 + 11.75) = 17.50 feet
17.50 feet of ribbon cost = $10.50
1 foot of ribbon cost = x
Cross Multiply
17.50 × x = 1 foot × $10.50
x = 1 foot × 10.50/17.50
x = $0.6
The ribbon cost per foot $0.6 per foot
Which equation can be used to describe the pattern in the table
Answer:
I feel like its C.
Step-by-step explanation:
Answer:
the answer is C
Step-by-step explanation:
because all the a values are 5 more than b
Calculate the area, in terms of x and in simplest form, of the rectangle shown below.
5x + 4
2x - 5
5x +4 the x is 2 the answer to this is 14
2x-5 the x is 4 the answer to this is 13
A sample of 64 account balances from a credit company showed an average daily balance of $1,040. The standard deviation of the population is known to be $200. We are interested in determining if the mean of all account balances (i.e., population mean) is significantly different from $1,000. 1. State the null and alternative hypothesis. 2. Compute the test statistic. 3. Compute the p-value. 4. Based on the p-value and the significance level of 0.05% make a decision regarding the hypotheses. 5. Interpret your results in the context of the problem.
Answer:
See step by step exlanation
Step-by-step explanation:
Assuming normal distribution
N( μ₀ , σ )
In this case N ( 1000, 200)
From a random sample of 64 accounts we get:
n = 64
x = sample mean x = 1040
σ = standard deviation of the population σ = 200
1.-Test Hypothesis
Null Hypothesis H₀ x = μ₀ = 1000
Alternative Hypothesis Hₐ x ≠ μ₀
The alternative hypothesis implies a two tail-test. Given that n > 30 and σ is known we will use z-table
2.- z(s) = ( x - μ₀ ) / σ/√n
z(s) = ( 1040 - 1000 ) / 200/ √64
z(s) = 40*8/200
z(s) = 1,6
3.-P-val for z (score 1,6) p-value = 0,0548
4.- If significance level is 0,05 then α = 0,05 and α/2 = 0,025
p-value > α/2
Then the z(s) < z(c) 1,6 < 1,96 where z(c) is z score for α/2
We should accept H₀
5.-We can claim that at 95 % (of Confidence Interval) the population mean is not significantly different from 1000 $
Please solve quickly, will give brainliest
Answer:
Step-by-step explanation:
for 1 cube of 6 sides, it takes 5 grams
so 1 side is 5/6th grams
now how many sides of small cubes are shown is 42
42*5/6=35 grams
Answer:
180 grams
Step-by-step explanation:
5gramsx number of squares
5gramsx 36=180grams
Ms. Buford surveyed 55 students on their preference of playing football or hockey. The results are shown below.
Answer:
1 Monique has three sons who play football, two sons who 2 The accompanying diagram shows the results of a survey asking which sports the members of the Key 6 In Ms. Wright's English class, 16 students are in band ... are shown in the Venn diagram below. 11 A school district offers hockey and basketball. The
Step-by-step explanation:
The length of a rectangle is increasing at a rate of 4 meters per day and the width is increasing at a rate of 1 meter per day. When the length is 10 meters and the width is 23 meters, then how fast is the AREA changing
Answer:
[tex]\displaystyle \frac{dA}{dt} = 102 \ m^2/day[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightGeometry
Area of a Rectangle: A = lw
l is lengthw is widthCalculus
Derivatives
Derivative Notation
Implicit Differentiation
Differentiation with respect to time
Derivative Rule [Product Rule]: [tex]\displaystyle \frac{d}{dx} [f(x)g(x)]=f'(x)g(x) + g'(x)f(x)[/tex]
Step-by-step explanation:
Step 1: Define
[tex]\displaystyle l = 10 \ meters[/tex]
[tex]\displaystyle \frac{dl}{dt} = 4 \ m/day[/tex]
[tex]\displaystyle w = 23 \ meters[/tex]
[tex]\displaystyle \frac{dw}{dt} = 1 \ m/day[/tex]
Step 2: Differentiate
[Area of Rectangle] Product Rule: [tex]\displaystyle \frac{dA}{dt} = l\frac{dw}{dt} + w\frac{dl}{dt}[/tex]Step 3: Solve
[Rate] Substitute in variables [Derivative]: [tex]\displaystyle \frac{dA}{dt} = (10 \ m)(1 \ m/day) + (23 \ m)(4 \ m/day)[/tex][Rate] Multiply: [tex]\displaystyle \frac{dA}{dt} = 10 \ m^2/day + 92 \ m^2/day[/tex][Rate] Add: [tex]\displaystyle \frac{dA}{dt} = 102 \ m^2/day[/tex]Topic: AP Calculus AB/BC (Calculus I/II)
Unit: Implicit Differentiation
Book: College Calculus 10e
The graph of triangle ABC is shown below:
What is the area, in square units, of triangle ABC?
Answer:
36 square units
Step-by-step explanation:
Height = 9
Base = 8
Area of a triangle = A = 1/2bh
Plug in
1/2 (8) (9) = 4 x 9 = 36
Evaluate 3-(5-10)-7+1-6
Answer:
[tex] - 4[/tex]
Step-by-step explanation:
1) Simplify 5 - 10 to -5.
[tex]3 - ( - 5) - 7 + 1 - 6[/tex]
2) Remove parentheses.
[tex]3 + 5 - 7 + 1 - 6[/tex]
3) Simplify 3 + 5 to 8.
[tex]8 - 7 + 1 - 6[/tex]
4) Simplify 8 - 7 to 1.
[tex]1 + 1 - 6[/tex]
5) Simplify 1 + 2 to 2.
[tex]2 - 6[/tex]
6) Simplify.
[tex] - 4[/tex]
Therefor, the answer is -4.
What is the answer to this please????
Answer:
your answer will be
y=40 x +20
Step-by-step explanation:
have a nice day/night ^_^
Help please!! I’ll give best answer brainliest!!
Answer:
D, The last one
Step-by-step explanation:
3. What are the solutions to 2(x-7) = 327
Answer:
if u mean what x is equal to then x=341/2
Step-by-step explanation:
Ava bought 2 sandwiches for a total of $5.25, a bowl of soup for $3.00, and a bag of chips for $1.25. How much change did she get back if she paid with a $20.00 bill?
Answer:
Step-by-step explanation:
5.25
3.00
1.25
_____
$ 9.50
- 20.00
_______
$10.5
Find the value of x in the triangle shown below 3 6
5
√18
√27
4
a^2 + b^2 = c^2
In this case we're looking for C
so
(3)^2 + b^2 = (6)^2
9 + b^2 = 36
b^2 = 36-9
√b^2 = √27
b = 3√3
Answer:
the answer is actually d= 27
Step-by-step explanation:
Ms. Smith mixes orange juice with seltzer in a ratio of 3:1. If she uses 48 ounces of orange juice, how many ounces of seltzer does she need?
Answer:
16 oz
Step-by-step explanation:
the ratio is 3 oz of oj to 1 oz of seltzer.
I pretty much just divided 48 by 3.
I hope this is correct and I hope it helps you!
ags of sugar come in 3 sizes.
Small bag: A 250 g bag costs 64p.
Medium bag: A 575 g bag costs £1.25.
Large bag: A 1.25 kg bag costs £2.54.
Find the cost per gram for each bag of sugar.
Round your answers to 3dp.
Write which size of bag is best value for money in the comment box.
Answer:1 gram of the small bag costs 0.256p ,1 gram of the medium bag costs 0.217p and 1 gram of the big bag costs 2. 032p
Step-by-step explanation:
please give me the answer
1 -10
2 -8
3 -2
4 -1
2/5 x = 3 1/5
ASAP ill give brainliest
Answer:
15 1/2
Step-by-step explanation:
Answer:
x=8
Step-by-step explanation:
Let's solve your equation step-by-step.
2 /5 x=3 1 /5
Step 1: Simplify both sides of the equation.
2 /5 x= 16 /5
Step 2: Multiply both sides by 5/2.
( 5 /2 )*( 2 /5 x) =( 5 /2 )*( 16 /5 )
x=8
Can someone give me the answer please?
Answer:
16
Step-by-step explanation:
Hey There!
So the x values are the same so all we have to do is subtract the y values
to be more specific y1-y2
so the distance is equal to 7--9
the negative signs cancel out so now its 7+9
7+9=16
so the distance between the two points is 16
hope this helps :)
Answer:
D. 16 units
Step-by-step explanation:
You could draw a coordinate plane or think of it this way:
They will all be in line with -4 and they will be at -9 and 7. You should add them together to find the distance. 9 + 7 = 16
D. 16 units
The image shows a coordinate plane:
Name the two congruent triangles
Answer:
∆ABE ≅ ∆DCE by SAS Congruence Theorem.
Step-by-step explanation:
The diagram given indicates the following:
<E ≅ <E (vertical angles)
AE ≅ DE
BE ≅ CE
Thus, an included angle, <E, and two side lengths, AE and BE, in ∆ABE are congruent to an included angle, <E, and two corresponding side lengths, DE and CE, in ∆DCE. By the SAS Congruence Theorem, both angles are congruent to each other.
Therefore:
∆ABE ≅ ∆DCE by SAS Congruence Theorem.
Answer choices please help
240
200
240
280
What fraction is equivalent to 8%
2/25
4/50
8/100
this are the smallest fractions equivalent to 8%
Answer:
8/100
Step-by-step explanation:
8% = 0.08 = 8/100
let me know if you need more of an explaination <33
PLEASE HELP: Find the value of S20 for the series of 5+8+11+14+....
Answer:
17 alyezhh
Step-by-step explanation:
its adding by 3's loljjjjhggg
Need help please help me
Pleasee helppp it’s due todayyy
Answer:
88 is a solution to 1/8 x =11, since a solution means that x is equal to that number, so in this scenario, x=88. When substituted(88*0.125), the same answer, 11, is obtained.
Step-by-step explanation:
Kate’s father is a baker at the Morning Muffin Bakery. This morning the oven wasn’t working correctly and 2 dozen muffins burned. Kate’s father gave ¼ of what was left to Kate to take to school. He wrapped up ½ of the remaining muffins and sold them to the grocery store down the street. He then wrapped ⅓ of what was remaining and gave them to the coffee shop to sell. That left Kate’s father with a dozen muffins to sell at the bakery. How many muffins did Kate’s dad bake?
Answer:
64
Step-by-step explanation:
Step 1: 12 divided by 3 = 4. 12+4 = 16.
I need to know what ⅓ of 12 is so I can continue the problem without messing up.
Step 2: 16*2 = 32.
Half of however many are left is 16.
Step 3: 32 divided by 4 is 8. 32+8 is 40. Two dozen is 24. 40 + 24 = 64.
Now we know the answer.
Boom.
Find the area of the figure.
8 m
15 m
Rounded to the nearest tenth, the area is
square meters.
Answer:
145.1 square meters
Step-by-step explanation:
The figure is composed of a rectangle and a semicircle.
Therefore, area of the figure = area of the rectangle + area of the semicircle
✔️Area of the rectangle = L*W
L = 15 m
W = 8 m
Area of rectangle = 15*8 = 120 m²
✔️Area of semicircle = ½(πr²)
r = ½ of 8 = 4 m
Area of semicircle = ½*π*4²
Area of semicircle = 25.1327413 m²
✔️Area of the figure = 120 + 25.1327413 = 145.132741 ≈ 145.1 m² (nearest tenth)
PLAZ HELPPP PWETRYYY PSLOD
Answer:
=
Step-by-step explanation:
whatever comes out of an absolute value is always positive so 8=8
please help thank you
Answer:
a is the answer hope this help:D
Step-by-step explanation: