Answer:
Null Hypothesis = Depression levels among two groups equal, Alternate Hypothesis = Depression levels among two groups unequal.
Step-by-step explanation:
Null Hypothesis is the neutral hypothesis, of no difference.
Null Hypothesis in this case is, mean depression level among victims = mean depression level among bystanders.
Alternate Hypothesis in this case is, mean depression level among victims ≠ mean depression level among bystanders.
What is the answer and the work i have to do to get to it
Answer:
B
Step-by-step explanation:
Help please it’s important-
HELP PLEASE DUE IN 3 MINUTES
Answer:
12 cats or B
Step-by-step explanation:
Because there are 3 more dogs than cats and if there is 2 cats for every 5 dogs, 5x6=30 so 2x6=12.
PLEASE HELP 20 POINTS! Hunter and his children went into a movie theater and will buy bags of popcorn and
drinks. Each bag of popcorn costs $5.50 and each drink costs $6. Hunter has a total
of $80 to spend on bags of popcorn and drinks. Write an inequality that would
represent the possible values for the number of bags of popcorn purchased, b, and the
number of drinks purchased, d. Write in an inequality.
please help me i really need help please
Answer:
d
Step-by-step explanation:
Based on the density graph below, what is the probability of a value in the
sample space being anywhere from 20 to 25?
A 20%
B. 80%
C. 409
D. 60%
Answer:
60
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Answer:
20%
Step-by-step explanation:
took the quiz
What is the area of the triangle?
Brody is going to invest in an account paying an interest rate of 3.7% compounded monthly. How much would Brody need to invest, to the nearest hundred dollars, for the value of the account to reach $34,000 in 13 years?
Answer:
$21,033
Step-by-step explanation:
The computation of the amount invested is shown below;
As we know that
Future value = Present value × (1 + rate of interest)^number of years
Now
Present value = Future value ÷ (1 + rate of interest)^number of years
where,
Rate of interest = 3.7% ÷ 12 = 0.3083333%
And, the number of years is = 13 × 12 = 156
So, the present value is
= $34,000 ÷ (1 + 0.3083333%)^156
= $21,033
Determine the area of the shape below.
Answer 230
Step-by-step explanation:
Add the area of the rectangle (160) to the area of the triangles (70 (35 each))
Area of a triangle 1/2bh
There are 2 different shops selling laptops. The dot plots below shows the distribution of laptops based on their weights in 2 different shops. For the following questions, use the dot plots.
Answer:
On an average, the shop 1 has a lighter variety of laptops.
False
If you buy a laptop of 10 pounds, then it's more likely that you bought the laptop from shop 1.
False
Shop 2 has more laptops with a weight less than the average weight than does Shop 1.
True
Find the diameter of the circle with a circumference of 80 feet. Use 3.14 for pi. Round your answer to the nearest tenth.
12.7 ft
25.5 ft
40.0 ft
50.9 ft
Michael weighed 186 pounds. His doctor put him on a diet which enabled him to lose 3 pounds per month. What was his weight after 7 months on the diet?
Answer:
165 pounds
Step-by-step explanation:
3 times 7 = 21
186 - 21 = 165
72/10-9/2=_____
i need help with this problem
2(6x+3) hurry please thanks
Answer:
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Step-by-step explanation:
btw the answer is
(12x+6)
W.8
w 11
a Write a polynomial that represents the area of the lawn.
b. Write a polynomal that represents the perimeter of the lawn
Answer:
.
Step-by-step explanation:
someone help meee nowww pleasee
Answer:
149.28 m²
Step-by-step explanation:
Bottom and two sides of the rectangle: 3x4x6=72
Two square ends of the rectangle: 2x4x4=32
Two triangular sides of the prism: 2x1/2x2x6=12
Back of prism: 2x4=8
Top of prism: 4x6.32=25.28
72+32+12+8+25.28=149.28
USA Today reports that about 25% of all prison parolees become repeat offenders. Alice is a social worker whose job is to counsel people on parole. Let us say success means a person does not become a repeat offender. Alice has been given a group of four parolees. Find the probability P(r) of r successes ranging from 0 to 4. (Round your answers to three decimal places.)
P(0) =
P(1) =
P(2) =
P(3) =
P(4) =
What is the expected number of parolees in Alice's group who will not be repeat offenders? What is the standard deviation?
Answer:
P(0) = 4C0 * 0.75⁰ * 0.25⁴ = 0.00390625 . = 0.004
P(1) = 4C1 * 0.75¹ * 0.25³ = 0.046875 . . . = 0.047
P(2) = 4C2 * 0.75² * 0.25² = 0.2109375 . . = 0.211
P(3) = 4C3 * 0.75³ * 0.25¹ = 0.421875 . . . = 0.422
P(4) = 4C4 * 0.75⁴ * 0.25⁰ = 0.31640625 . = 0.316
Check:
P(0) + P(1) + P(2) + P(3) + P(4) = 1 . . . ok
Step-by-step explanation:
plz help me answer this.
Geometry Question. NEED HELP ASAP. I will give BRAINLIEST.
Answer:
x =23
Step-by-step explanation:
1) [tex]\frac{7x}{20x-4}[/tex] = [tex]\frac{3}{2x+2}[/tex]
2) Cross multiply - 14x+14=60x-12
3) Combine like terms - 46x=2
4) Divide - x=23
Tom has arrive at the time of 259 248s.Find the number of Tom in Day,hour,Minute,Second
Answer:
3 days 0 hours 0 minutes 48 seconds
Step-by-step explanation:
Seconds = 259248 s
Number of days = Seconds given / 86400
Where 86400 = seconds in a day
The result is: 3 days remaining 48 seconds
Hours = Seconds Left / 3600 seconds.
Since the seconds left is 48, the hour = 0
Minutes = Seconds Left / 60 seconds.
Since the seconds left is 48, the minute = 0
Result:
3 days 0 hours 0 minutes 48 seconds
4+5[tex]4+5\frac{x}{y} 3x^{2} - 3x^{2}[/tex]
Answer:
[tex]58 + \frac{ {15x}^{3} }{y} - {3x}^{2} [/tex]
Step-by-step explanation:
1) Use this rule: a/b × c/d = ac/bd.
[tex]4 + 54 + \frac{5x \times {3x}^{2} }{y} - {3x}^{2} [/tex]
2) Take out the constants.
[tex]4+54 + \frac{(5 \times 3) {xx}^{2} }{y} - {3x}^{2} [/tex]
3) Simplify 5 × 3 to 15.
[tex]4 + 54 + \frac{ {15xx}^{2} }{y} - {3x}^{2} [/tex]
4) Use the product rule: x^a x^b = x^a + b.
[tex]4 + 54 + \frac{15xx^{2} }{y} - 3x^{2} [/tex]
5) Simplify 1 + 2 to 3.
[tex]4 + 54 + \frac{15 {x}^{3} }{y} - {3x}^{2} [/tex]
6) Collect like terms.
[tex](4 + 54) + \frac{15 {x}^{3} }{y} - {3x}^{2} [/tex]
7) Simplify.
[tex]58 + \frac{ {15x}^{3} }{y} - {3x}^{2} [/tex]
Therefor, the answer is 58 + 15x³ / y - 3x².
On Monday, the high temperature was 60°. On Tuesday, the high temperature was 12° colder than on Monday. On Wednesday, the high temperature was 10° warmer than the temperature on Tuesday. What was the temperature on Wednesday, in degrees Fahrenheit? Show your work or explain your answer.
Answer:
68 degrees
Step-by-step explanation:
60-12(12 degrees colder on Tuesday)=58
58+10(10 degrees warmer on Wednesday)=68
Which of the following correctly provides the freezing points and boiling points of water in degrees Fahrenheit and Celsius?
Can answer these questions
Debbie McAdams paid 9% interest on a $16,500 loan balance. Jan Burke paid $6,450 interest on a $107,500 loan. Based on 1 year:
a. What was the amount of interest paid by Debbie?
What was the interest rate paid by Jan? (Round your answer to the nearest tenth percent.)
Answer: See explanation
Step-by-step explanation:
a. What was the amount of interest paid by Debbie?
Interest is calculated as:
= PRT
= (16500 × 9% × 1)
= 16500 × 0.09 × 1
= $1485
Debbie paid $1485 as interest.
b. What was the interest rate paid by Jan?
Interest = PRT/100
6450 = (107500 × R × 1) / 100
6450 × 100 = 107500R
645000 = 107500R
R = 645000 / 107500
R = 6.0
The interest rate is 6.0%
Instructions: Write an equation to represent the situation and
then solve.
Oceanside Bike Rental Shop charges 18 dollars plus 6 dollars an
hour for renting a bike. Jason paid 72 dollars to rent a bike. How
many hours did he pay to have the bike checked out?
Jason rented the bike for
hours.
Answer:
y=6x+18 or 72=6x+18
Step-by-step explanation:
18 represents the y intercept as 6x represents the constant variation
The graph shows the relationship between the width of a sticker and the length of the sticker sold at an art store. Is the relationship represented by the graph a function?
A
function
B
not a function
C
both
D
neither
Answer:
C both is the right answer
7.6e+12 wrote in scientific notation
Answer:
7.6e+12 written in scientific notation is 7.6 x 10^12
(Hope this helps! Btw, I answered first. Brainliest please! :D)
Help with MATH please
Answer:
Step-by-step explanation:
4). By applying cosine rule for angle R,
cos(∠R) = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]
cos(33°) = [tex]\frac{x}{19}[/tex] [Equation]
x = 19cos(33°)
= 8.39
5). By applying sine rule,
cos(20°) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]
cos(20°) = [tex]\frac{15}{x}[/tex] [Equation]
x = [tex]\frac{15}{\text{cos}20}[/tex]
x = 15.96
6). By applying tangent rule,
tan(40°) = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]
tan(40°) = [tex]\frac{15}{x}[/tex] [Equation]
x = [tex]\frac{15}{\text{tan}40}[/tex]
x = 17.88
14 9/16- 8 1/4 rounded to the nearest whole number
Answer:
14 9/16 - 8 1/4 = 14 9/16 - 8 4/16 = 233/16 - 132/16 = 101/16 = 6 5/16 ~~ 6
14 9/16 - 8 1/4 = 6