Answers
Answer:
answer is B all the best for your exam
Step-by-step explanation:
please follow me
Related Questions
The authors of a certain paper describe a study to evaluate the effect of mobile phone use by taxi drivers in Greece. Fifty taxi drivers drove in a driving simulator where they were following a lead car. The drivers were asked to carry on a conversation on a mobile phone while driving, and the following distance (the distance between the taxi and the lead car) was recorded. The sample mean following distance was 3.80 meters and the sample standard deviation was 1.19 meters.
Construct a 95% confidence interval (in meters) for μ, the population mean following distance while talking on a mobile phone for the population of taxi drivers. (Round your answers to three decimal places.)
Answers
Answer:
CI = (3.462, 4.138)
Step-by-step explanation:
We are given;
Sample mean; x¯ = 3.8
Sample standard deviation; s = 1.19
Sample size; n = 50
DF = n - 1 = 50 - 1 = 49
Confidence level; CL = 95%
Significance level = (1 - 0.95)/2 = 0.025
Now,from the table attached using DF = 49, significance level = 0.025, one tail and by interpolation, we have; t = 2.01
Now, formula for confidence interval is;
CI = x¯ ± t(s/√n)
CI = 3.8 ± 2.01(1.19/√50)
CI = 3.8 ± 0.338
CI = (3.8 - 0.338, 3.8 + 0.338)
CI = (3.462, 4.138)
Solve -12t ≥-6
.......
Answers
Answer:
t=2
Step-by-step explanation:
5. Jaxson was filling his pool. When he started, it already contained 486 gallons. He filled it for
95 minutes with water coming out of a hose at a rate of 8.4 gallons per minute.
(a) How many gallons of water are in the pool at the end of 95 minutes?
Answers
Answer:
1284 gallons
Step-by-step explanation:
95 minutes*8.4 gallons=798 gallons
486 + 798 = 1284 gallons after 95 minutes
(a) Which of the following expresses the zero product property formally using quantifiers and variables? ∀ real numbers x and y, if xy = 0 then x = 0 and y = 0. ∀ real numbers x and y, if x = 0 and y = 0 then xy = 0. ∀ real numbers x and y, if x = 0 or y = 0 then xy = 0. ∀ real numbers x and y, if xy = 0 then x = 0 or y = 0. (b) Which of the following is the contrapositive of the zero product property? ∀ real numbers x and y, if x ≠ 0 or y ≠ 0 then xy ≠ 0. ∀ real numbers x and y, if xy ≠ 0 then x ≠ 0 or y ≠ 0. ∀ real numbers x and y, if x ≠ 0 and y ≠ 0 then xy ≠ 0. ∀ real numbers x and y, if xy ≠ 0 then x ≠ 0 and y ≠ 0. (c) Which of the following is an informal version (without quantifier symbols or variables) for the contrapositive of the zero product property? For any two real numbers, if at least one of them is nonzero then their product is nonzero. If the product of two real numbers is nonzero, then both numbers are nonzero. If the product of two real numbers is nonzero, then neither number is zero. If neither of two real numbers is zero, then their product is nonzero.
Answers
Answer:
A) ∀ real numbers x and y, if xy = 0 then x = 0 or y = 0.
B) ∀ real numbers x and y, if xy ≠ 0 then x ≠ 0 and y ≠ 0.
c) If neither of two real numbers is zero, then their product is nonzero
Step-by-step explanation:
A) Expression of zero product property using quantifiers and variables
∀ real numbers x and y, if xy = 0 then x = 0 or y = 0.
B) Contrapositive of the zero product property
∀ real numbers x and y, if xy ≠ 0 then x ≠ 0 and y ≠ 0.
C) The Informal version (without quantifier symbols or variables) for the contrapositive of the zero product property is : If neither of two real numbers is zero, then their product is nonzero
rewrite the function and isolate Y
Answers
You add 8x to both sides
Making it
4y=8x-16
Then you divide both sides by 4
Making it
y=2x-4
Estimate by rounding the first number to the nearest ten and the second number to the nearest hundred. 19 Х 307 II ? Х ? = ?
Answers
Answer:
6,200
Step-by-step explanation:
19-20
307-310
310 x 20= 6,200 or 20 x 310= 6,200
-7⅔+(-5½)+8¾ helpp mee
Answers
Answer:
Ughhhhhhhhh harder daddy
Step-by-step explanation:
First you let him put the penis in the hole
Can anyone help me please?? Thank you.
Answers
Answer:
okay well the total distance is 3 and 1/3 km and the speed that it was for him to go downstream was 2/3 km per hour
I multiplied a number by itself and got 324. What was the
number?
Answers
Answer:
18
Step-by-step explanation:
Answer:
18
Step-by-step explanation:
18 times 18 equals 324 and the number 18 is being multiplied by itself
Ms. Lee's monthly bank statement shows an ending balance of $ 1 , 254.78 . She had one outstanding deposit of $ 352.21 and there was one outstanding check for $ 125.39 . Which of the following should the balance be in her checkbook register?
Answers
NEED HELP PLEASEEEEEE
Answers
Answer:
The right algebraic expression is 2x - 1
Step-by-step explanation:
Let us change the given phrase from words to mathematics expression
Twice means multiply by 2Less than a number by a given value means the number minus the valueIn our question, the phrase is " One less than twice a number "
To change it to an algebraic expression
→ Assume that the number is x
∵ Twice a number means 2 × x = 2x
∵ One less than twice the number means 2x - 1
∴ The algebraic expression is " 2x - 1 "
→ The error in the given expression is
Translate twice a number to x²x² is square a numberThe right algebraic expression is 2x - 1
Shiloh has to earn at least $200 to meet her fundraising goal. She has only 100 cakes that she plans to sell at $5 each. Which inequality shows the number of cakes, x, Shiloh can sell to meet her goal?
Answers
Answer:d
Step-by-step explanation:I took the test too
A designer is creating various open-top boxes by cutting four equally-sized squares from the corners of a standard sheet of 8.5 inch by 11 inch paper, and then folding up and securing the resulting 'flaps' to be the sides of the box. Let x represent the varying side length of the square cutouts in inches. Let l , w , and h represent the varying length, width and height of the box (in inches), respectively. Note that the width and length dimensions are such that w < l . Let V represent the varying volume of the box in cubic inches. Write formulas for length, width, and volume of the box, each in terms of x .
Answers
Answer:
L(x) = 11 - 2x
W(x) = 8.5 - 2x
V(x) = 4x³ - 39x² + 93.5x
Step-by-step explanation:
If a square of x sides length is cut from each corner of the sheet, then it meas the length and width of the box a shortened by x inces from each side, giving a total subtraction of 2 times x inches.
FORMULA FOR LENGTH:
Since, Length is the bigger side of the box. Therefore, it will be taken on 11 inches side of the paper:
L(x) = 11 - 2x
FORMULA FOR WIDTH:
Since, width is the smaller side of the box. Therefore, it will be taken on 8.5 inches side of the paper:
W(x) = 8.5 - 2x
FORMULA FOR VOLUME:
Volume is the product of length, width and time:
V(x) = L(x)*W(x)*H(x)
Height must be equal to the side folds which are equal to length of the side of square = x:
H(x) = x
Therefore,
V(x) = (11 - 2x)(8.5 - 2x)(x)
V(x) = (93.5 -22x -17x + 4x²)(x)
V(x) = 4x³ - 39x² + 93.5x
. A recipe calls for 32 ounces of pasta to be used. How many pounds of pasta is that if 1 ounce equals about 0.06 pounds?
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If 1 ounce is equal to 0.06 pounds then 32 ounces of pasta is equivalent to 1.92 pounds of pasta.
What is a unitary method?A unitary method is a mathematical way of obtaining the value of a single unit and then deriving any no. of given units by multiplying it with the single unit.
Given, A recipe calls for 32 ounces of pasta to be used.
Also given that 1 ounce is equal to 0.06 pounds.
Therefore, To convert the amount of pasta to pounds from ounces we have multiply the unit rate which is (32×0.06).
= 1.92 pounds.
learn more about the unitary method here :
https://brainly.com/question/28276953
#SPJ2
Find the common ratio of the geometric sequence 20,80,320,...
Answers
Answer:
1:4
Step-by-step explanation:
all of the numbers are being multiplied by 4
63 pt__ gal __ qt __ pt
Answers
Write the ratio: 10 to 2 as a fraction in lowest terms.
Answers
Answer:
[tex]\frac{5}{1}[/tex]
Step-by-step explanation:
10:2 would be written as [tex]\frac{10}{2}[/tex] in fraction form.
We can simplify this fraction to 5 to 1.
[tex]\frac{10}{2}=\frac{10/2}{2/2}=\frac{5}{1}[/tex]
Hope this helps.
match each retirement planes to it's description
Answers
Answer:
1. 401(k)
2. IRA
3. 403(b)
Step-by-step explanation:
1. 401(k) is a employer-sponsored defined-contribution pension account
2. IRA stands for individual retirement account (hence individual)
3. 403(b) is a tax-advantaged retirement savings plan
hope this helps!!
Answer:
1.401k
2.425k
3.740k
Step-by-step explanation:
hehe naisip ko lang haha
carol feeds her bird the same amount of food every day. over the past 7 days, her bad of bird food has decreased by 1 3/4 cups.
Answers
Answer:
12.25 or 12 1/4
Step-by-step explanation:
Every day, the bird at 1.75 or 1 and 3/4. so, this would also equal to 1.75*1 day.
So, 7 days, the bird would eat, 1.75*7 days.
1.75*7=12.25
Answer:
12.25 or 12 1/4
Step-by-step explanation:
Every day, the bird at 1.75 or 1 and 3/4. so, this would also equal to 1.75*1 day.
So, 7 days, the bird would eat, 1.75*7 days.
1.75*7=12.25
Please help...
R/5 - 6 = -1
A) r=1
B) r=5
C) r=10
D) r=25
Answers
Answer: Its D
Step-by-step explanation:
Cause i have calulator :D
An expression is shown below if this expression is equivalent to 60, what must be the value of a? A.) 3 B.) 4 C.) 9 D.)16
Answers
Answer:
Option (A)
Step-by-step explanation:
Given expression is,
[tex]5\sqrt{48a}=60[/tex]
Squaring on both the sides of the equation,
[tex](5\sqrt{48a})^2=(60)^2[/tex]
25(48a) = 3600
1200a = 3600
By dividing the equation by 1200,
a = [tex]\frac{3600}{1200}[/tex]
a = 3
Therefore, Option (A) will be the answer.
What P:X equals 4 let q:y equals -2 which represents if x = 4 then y = -2
Answers are as followed
A. p V q
B. p V q
C. p -> q
D. p q
Answers
Answer:
p - > q is a = 4 then y = 3 equals
You start at(-5, -4) you move down 1 unit and up 1 unit where do you end?
Answers
Answer:
-5,-4
Step-by-step explanation:
-5,-4
down 1 unit: -5,-3
up 1 unit: -5,-4
anyone here in brainly good at math?
Answers
Answer:
3/16 / 5/6 = 9/40
7 / 1/6 = 42
2 1/6 / 1 1/3 = 1 13/20
2 1/7 / 3/28 = 20
An instructor gives his class a set of 18 problems with the information that the next quiz will consist of a random selection of 9 of them. If a student has figured out how to do 13 of the problems, what is the probability the he or she will answer correctly
all 9 questions? =.0147
atleast 8 questions ?
Answers
Answer:
The probability the he or she will answer correctly is 1.5%
Step-by-step explanation:
What is the value of 2 5/8 divided by 7/10
Answers
Answer:
3 3/4
(Decimal: 3.75)
Step-by-step explanation:
Choose the more precise measurement A 5.7 yd B) 5.89 yd
Answers
When the unit digits are the same , we have to look at the decimal places . Since the unit digits in 5.7 and 5.89 are same , which is 5 , let us look at the decimals . As 5.89 has more decimal digits when compared with 5.7 , we say that the measurement 5.89 has more precision .
Therefore , 5.89 us has more precision .
How would I do this
Answers
Answer:
15
Step-by-step explanation:
Since the two triangles are similar you can use the ratio 6/9 = 10/x. Then you would cross multiply. 6x=90. 90/6=15. So the answer is 15
A fruit company includes 1.655 ounces of pineapple juice in a 6.75 ounce bottle of a mixed fruit juice. How much of the bottle of mixed fruit juice is NOT pineapple juice?
Answers
Tara bought 2 bottles of juice each day for 18 days. On the 19th day, Tara bought 7 bottles of juice.
Choose the expression that matches the description.
A (2 × 18) − 7
B (2 × 19) + 7
C (2 × 18) + 7
