Answer:
Lisa can buy 5 pounds of tomatoes.
Step-by-step explanation:
Given that Lisa has $ 7.80 to spend on some tomatoes and a loaf of bread, and tomatoes cost $ 1.20 per pound, and a loaf of bread costs $ 1.80, to determine how many pounds of tomatoes she can buy, the following calculation must be performed:
1.20X + 1.80 = 7.80
1.20X = 7.80 - 1.80
X = 6 / 1.20
X = 5
So Lisa can buy 5 pounds of tomatoes.
Conduct the following test at the level of significance by determining (a) the null and alternative hypotheses, (b) the test statistic, and (c) the P-value. Assume that the samples were obtained independently using simple random sampling. Test whether . Sample data are , , , and . (a) Determine the null and alternative hypotheses. Choose the correct answer below. A. versus B. versus C. versus Your answer is correct.D. versus (b) The test statistic is nothing. (Round to two decimal places as needed.)
Answer:
Hello your question is poorly written the complete question is attached below
answer :
a) H0 : p1 = p2
Ha : p1 ≠ p2
b) Z = -0.58
c) P-value = 0.561915
d) we will reject the Alternative hypothesis
Step-by-step explanation:
For sample 1 ; n1 = 254 , x1 = 28
For sample 2 ; n2 = 301 , x2 = 38
level of significance ∝ = 0.01
P1 = X1 / n1 = 28 / 254 = 0.1102
P2 = X2 / n2 = 38 / 301 = 0.126
a) Determine the null and alternate hypothesis
H0 : p1 = p2
Ha : p1 ≠ p2
b) Determine Test statistic
we perform a Z-statistic to test the hypothesis
Z = [tex]\frac{p1-p1 }{\sqrt{( p(1-p)*(\frac{1}{n1}+\frac{1}{n2}) ) } }[/tex] -------- ( 1 )
p = ( x1 + x2 ) / ( n1 + n2 )
= ( 28 + 38 ) / ( 254 + 301 ) = 0.1189
Where: p = 0.1189 , p1 = 0.1102 , p2 = 0.126 ( input values into equation 1 )
∴ Z = -0.58
c) Determine P-value
P-value = 0.561915 ( using excel function )
d) conclusion : since p-value > 0.01 ( level of significance ) we do not reject the null hypothesis. therefore it proves that p1 = p2
Which angle is supplementary to 15?
9514 1404 393
Answer:
∠14
Step-by-step explanation:
Angle 15 forms a linear pair with angles 14 and 16. Each of those is supplementary to angle 15. Only angle 14 is listed as a choice.
Whats is -100+500 you get it ok
Answer:
400 pick mine as Brainlest
Step-by-step explanation:
Answer:
It is 400
Step-by-step explanation:
If you reverse it to make it easier on yourself.
500-100 =400
7a +5+2b
Select all of the true statements below.
- 2b and 5 are like terms.
- 5 is a constant.
- 2 is a coefficient.
- 7a+5+2b is written as a product of three factors.
- 7a +5+2b is written as a sum of three terms.
- None of these are true.
Answer:
5 is a constant
2 is a coefficient
7a + 5 + 2b is written as a sum of three terms
WILL MARK BRAINLYIST
You are already correct.
Help me with this question
Answer:
0.45
Step-by-step explanation:
45/100
1/100 = 0.01
0.01 * 45 = 0.45
If the principle is $12,000 and the rate of interest is 6% (simple interest), what
is the total amount after one year?
[no links please (:]
9514 1404 393
Answer:
$12,720
Step-by-step explanation:
The amount is given by the formula ...
A = P(1 +rt)
where P is the principal, invested at rate r for t years.
A = $12,000(1 +0.06·1) = $12,720
The total amount after 1 year is $12,720.
Ans: 720cm
2
The ratio of the number of Malay students to the number of Indian students to the
number of Chinese students in a school is 5:4:8.
There are a total of 468 Indian and Chinese students.
What is the total number of students?
Ans:
Answer:
663
Step-by-step explanation:
ratio of Malay = 5
ratio of Indian= 4
ratio of Chinese= 8
Total number of Indian + Chinese= 468
Total ratio= 5+4+8= 17
Let the total number of students= X
Ratio of India= 4/17 × X=
Ratio of Chinese= 8/17 × X=
Addition of ratio of both India and Chinese=
4X/17 + 8X/17= 468
(4X +8X)/17 = 468
12X/17= 468
X= 663
Hence, total number of students is 663
Anyone I need this please
Help giving brainliest please help
Answer:
C. The mode of the number of miles Ian skated in July is less than the mode of the number of miles Ian skated in August.
Step-by-step explanation:
A. is not correct because the least amount he skated in July was 1 which is not greater than the least amount In August, 5
B. is not correct because the median number for July was 8 which is not greater than the median of August, 10
C. is correct because 8 is the most common number in July which is less than 10, the most common number in August.
D. is not correct because the range in July is 14 (15-1=14) which is not less than the range in August, 8 (13-5=8)
help pls
750000 + 4000 x 4%
Answer:
750160 ez
Step-by-step explanation:
3
4× 20=
3 × 20
4 =
please help fast
Answer:
[tex]680, 612[/tex]
Step-by-step explanation:
[tex]34[/tex]×[tex]20=680[/tex]
[tex]3[/tex]×[tex]204=612[/tex]
Convert 9 square feet to square inches
Answer:
1296
Step-by-step explanation:
9 x 144
A square foot is a unit of area. It is the size of a square that is one foot on a side. It is 144 square inches, 1/9th of a square yard, or approximately 0.093 square meters.
A square inch is a unit of area. It is the size of a square that is one inch on a side. It is 1/144th of a square foot, or exactly 6.4516 square centimeters.
So, 9 x 144 = 1296
Find 0% of 48:
Find 100% of 48:
Find 50% of 48:
Find 25% of 48:
Find 75% of 48:
Answer:
0
48
24
12
36
Step-by-step explanation:
Name the song that goes with these lyrics
1. I was rocking off white tryna have a fun time she gone eat like lunch time molly got her on time
2. Im a first class baby u in last baby im a 90's baby but i cook that shi from the 80's
3. I know i have a purpose but ion see the purpose they tell me the death of me gone be the perkys i know the lace the ills i bought them on purpose lifes unreal when deaths uncertain
Answer:
1. I'll Be Fine - Juice Wrld
2. ON GOD - Juice Wrld
3. Rich and Blind - Juice Wrld
the area of a square room is 144square metres what is the perimeter of the room
Answer:
the answer is 48
Step-by-step explanation:
12×12=144
4×12=48
Recall that if there is an intruder, system A sounds an alarm with probability 0.9 and system B sounds an alarm with probability 0.95. If there is no intruder, system A sounds an alarm with probability 0.2 an system B sounds an alarm with probability 0.1. Now assume that the probability of an intruder is 0.4. Also assume that under a given condition (intruder or not), systems A and B operate independently. If both systems sound an alarm, what is the probability that an intruder is detected
I uploaded the answer to a file hosting. Here's link:
bit.[tex]^{}[/tex]ly/3a8Nt8n
what is the square root of 2457
Answer:
49.568
Step-by-step explanation:
Solve for x
A) 9
B) 11
C) 5
D)-4
Find the average rate of change of y=log3 x over the interval 1≤x≤3. Write your answer as a fraction in the simplest form.
Answer:
If the interval is 1 < x < 3, then you are examining the points (1,4) and (3,16). From the first point, let a = 1, and f (a) = 4. From the second point, let b = 3 and f (b) = 16. The average rate of change is 6 over 1, or just 6.
The average rate of change is [tex]\frac{6}{25}[/tex]
What is rate of change over an interval?'When we calculate average rate of change of a function over a given interval, we’re calculating the average number of units that the function moves up or down, per unit along the x-axis. We could also say that we’re measuring how much change occurs in our function’s value per unit on the x-axis.'
According to the given problem,
Rate of change formula = [tex]\frac{f(b) - f(a)}{b-a}[/tex]
y = log3x
⇒ a= 1
b= 3
Therefore,
⇒ [tex]\frac{log(3*3) - log(3*1)}{3-1}[/tex]
⇒ [tex]\frac{log9 - log3}{2}[/tex]
⇒[tex]\frac{1}{2}[/tex] log[tex](\frac{9}{3})[/tex]
⇒ [tex]\frac{1}{2}[/tex] * log 3
⇒ [tex]\frac{6}{25}[/tex]
Hence we can conclude the rate of change as [tex]\frac{6}{25}[/tex]
Learn more about rate of change here: https://brainly.com/question/18193470
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PLEASE HELP ME ASAP!!!!!!
The length of a house on a blueprint is 4 inches, and the building itself is 32 feet long. If the width of the house is 40 feet, how wide is it on the blueprint?
28 in.
5 in.
10 in.
8 in.
Answer:
10 inches
Step-by-step explanation:
Can you figure out the missing number
Answer:
Im not sure exactly what this is but it seems the answer is 6 because the only number 1-9 thats not there!
Step-by-step explanation:
Hope this helps!! :)
The missing number is 6
What are missing numbers?
Missing numbers are numbers omitted from a group or series of numbers.
The main purpose of finding a missing number is to determine the mechanism by which the numbers are arranged or encoded.
From the given information:
The number given is natural numbers from 1 - 9,The missing number in the series from 1 - 9 in the box is 6.Therefore, we can conclude that the missing number is 6.
Learn more about the missing numbers here:
https://brainly.com/question/11170254
the age of three sibling leon,kelly,and jack are in the ratio 3: 5: 6:. the sum of their age is 42 years.how old is kelly?
solve the variable of x. 3^3^x= 1/243
Answer:
-5
Step-by-step explanation:
You volunteer to help drive children at a charity event to the zoo, but you can fit only 7 of the 19 children present in your van. How many different groups of 7 children
can you drive?
How many different groups of 7 children can you drive?
Answer:
3
Step-by-step explanation:
We need 14 feet of casing to put along all four sides of a rectangular window. If the length of the window is 4 feet , find the width .
What is the effect on the graph of the function f(x) = [xl when f(x) is changed to f(x + 9)?
Plzz
Answer:
when y or f(x) equals x then it's a straight line at the origin. if f(x+9) = |x|
f(x) = |x+9|
if you set that equal to zero then X= -9
so shifting over to the left is the right choice
Step-by-step explanation:
what is the angle of a right angle plate? 30 degree or 45 degree or 901 degree or 180 degree
Answer:
A right angle is measured 90°
Step-by-step explanation:
A right angle is measured 90°
An acute angle is measured <90° (for example 30° and 45°)
An obtuse angle is measured >90° but <180° (for example 170°)
A straight angle is measured 180°
Plzz help will mark brainleast
Answer:
A-1 central nervous system
b- peripheral nervous
How many different triangles can be made with the angle measures 30°, 60°, and 90°? A none B one © exactly two D more than two
