Answer:4 hours at 126 mi/hr
t = time flying at 111 mi/hr
837 = 111t + 126*(7-t)
837 = 111t + 882-126t
-45 = -15t
t = 3 hours at 111 mi/hr
2x+5=11
How do you solve this
Answer:
x=3
Step-by-step explanation:
2x+5=11
first subtract 5 from 11
2x=6
then divide 6 by 2
x=3
Hello.
Subtract 5 from both sides of the equation.
2x + 5 (-5) = 11 (-5)
Simplify
2x = 6
Divide both sides of the equation by 2.
2x (/2) = 6 (/2)
x = 3
The unknown number in the equation is 3.
5-11. A polymer is manufactured in a batch chemical process. Viscosity measurements are normally made on each batch, and long experience with the process has indicated that the variability in the process is fairly stable with 20. Fifteen batch viscosity measurements are given as follows: 724, 718, 776, 760, 745, 759, 795, 756, 742, 740, 761, 749, 739, 747, 742. A process change is made that involves switching the type of catalyst used in the process. Following the process change, eight batch viscosity measurements are taken: 735, 775, 729, 755, 783, 760, 738, 780. Assume that process variability is unaffected by the catalyst change. Find a 90% CI on the difference in mean batch viscosity resulting from the process change. What is the practical meaning of this interval
Step-by-step explanation:
Confidence interval = 90% = 0.90.
1 - 0.90 = 0.10
Mean of 15 batch:
724+718+776+760+745+759+795+756+742+740+761+749+739+747+742 = 11253/15
= 750.2
Mean of second batch:
735+775+729+755+783+760+738+780
= 6055/8
= 756.875
Sd = 20
Z-alpha/2 = 1.64
= (750.2-756.875)-1.64*√20²/15 + 20²/8
= -21.0348
(750.2-756.875)+1.64*√20²/15 + 20²/8
= 7.68
2. The upper limit of the interval is less than 10 so in conclusion the difference in mean batch viscosity is about 10 or less than 10
g Programs submitted by programs in a computer science course are examined for syntax errors and logic errors. Suppose 36% of all programs have syntax errors, 47% have logic errors, and 56% have at least one of those two error types. (a) What is the probability a program contains both error types? (b) What is the probability a program contains neither error type? (c) What is the probability a program has logic errors, but not syntax errors? (d) What is the probability a program either has no syntax errors or has no logic errors?
Answer:
The answer is below
Step-by-step explanation:
Let S denote syntax errors and L denote logic errors.
Given that P(S) = 36% = 0.36, P(L) = 47% = 0.47, P(S ∪ L) = 56% = 0.56
a) The probability a program contains both error types = P(S ∩ L)
The probability that the programs contains only syntax error = P(S ∩ L') = P(S ∪ L) - P(L) = 56% - 47% = 9%
The probability that the programs contains only logic error = P(S' ∩ L) = P(S ∪ L) - P(S) = 56% - 36% = 20%
P(S ∩ L) = P(S ∪ L) - [P(S ∩ L') + P(S' ∩ L)] =56% - (9% + 20%) = 56% - 29% = 27%
b) Probability a program contains neither error type= P(S ∪ L)' = 1 - P(S ∪ L) = 1 - 0.56 = 0.44
c) The probability a program has logic errors, but not syntax errors = P(S' ∩ L) = P(S ∪ L) - P(S) = 56% - 36% = 20%
d) The probability a program either has no syntax errors or has no logic errors = P(S ∪ L)' = 1 - P(S ∪ L) = 1 - 0.56 = 0.44
Answer:
Kindly check explanation
Step-by-step explanation:
Given the following :
Programs with syntax errors ; n(S) = 36%
Programs with logic errors; n(L) = 47%
Programs with atleast one of the two errors = 56%
P(S) = 0.36 ; p(L) = 0.47
P(SnL) = x
P(S) only + p(L) only + p(SnL) = 0.56
P(S) only = 0.36 - x
P(L) only = 0.47 - x
P(SnL) = 0.36 - x + 0.47 - x + x = 0.56
0.83 - x = 0.56
x = 0.27
B) probability that program contains neither error :
1 - p(program contains atleast one of the two errors)
1 - 0.56 = 0.44
C) probability of logic error but no syntax error :
P(L) - p(SnL)
= 0.47 - 0.27
= 0.20
find the x & y intercept for 3x-y=-5?
Answer:
Turn the answer to
-y = -3x - 5
-3 is the slope, and -5 is the y - intercept. Now graph it and look for the x intercept
Step-by-step explanation:
(1 point) Since 1966, 45% of the No. 1 draftpicks in the NBA have been centers. identify the population A. all No.1 draftpick centers in the NBA since 1966 B. all NBA players since 1966 C. all No.1 draftpicks in the NBA since 1966 D. None of the above identify the specified attribute A. being a No.1 draftpicks in the NBA B. being an NBA player C. being a center D. None of the above is the proportion 0.45 (45%) a population proportion or a sample proportion? A. population proportion B. sample proportion C. None of the above
Answer:
1 B
2 A
3 B
Step-by-step explanation:
1
The population is the total sample from which part of the event is considered. It's like in a set, the population would encompass everything as a whole. From the statement given, we're expected to find the population. The population is B.
All NBA players since 1966. This is because it is from this pool that the draft picks were selected, and narrowed down to 45% which were centre backs.
2
The specified attribute is A.
Being a No. 1 draft pick, because that's the fulcrum of the statement in itself
3
B sample proportion. The population like I stated above, is all NBA players since 1966, thus, a population proportion would have had the statement like this.
45% of all NBA players since 1966...
So, therefore, it's a sample proportion since it is referring to the draft pick, and not the NBA players
Answer:
Answer:
1 B
2 A
3 B
Step-by-step explanation:
Anybody know this helppppp
Answer:
7.8y - 26.2
Step-by-step explanation:
Answer:
y=-0.15
Step-by-step explanation:
Subtract the 6.4y on the left by the 14.2y, you will get 7.8y. The reason why you subtract instead of add is because you always do the opposite when adding/subtracting from the other side of the equal sign. Next, add the 12.5 to the -13.7 so you get -1.2. The whole equation would be 7.8y=-1.2. Then divide by 7.8 on both sides so that you get y=-0.15. Hope this helps :)
If triangle HBN ~ triangle LYR, find the values of X. PLEASE HELP
Answer:
28/21 = 3x - 7/x+11
x = 13
Step-by-step explanation:
The value of x from the given diagram is 13. Option A is correct.
Similarity theorem:From the given similar triangles;
28/3x-11 = x+11/21Cross multiply
28(21) = (3x-11)(x+11)
(3x-11)(x+11) = 588
Expand
3x^2 + 33x - 11x - 121 = 588
3x^2+22x- 709 =0
On factorizing, the value of x is 13
Learn more on similar triangles here: https://brainly.com/question/2644832
bar graph is also known as
Answer:
Step-by-step explanation:
BAR CHART
Hope this helps
plz mark as brainliest!!!!!!!
HELP!!!
The image shown here is a floor-plan of a house.
Make a vertex-edge graph of this floor-plan, where each letter is a vertex and each doorway is an edge.
It is possible to take a tour of the house so that you walk through each doorway only once and finish at your starting point.
True
False
Using the following functions, what is (j + g)(x)
Answer: switch sides and theres your answer
Step-by-step explanation:
good luck
100-4 divided 2x(3+7
Answer:
Step-by-step explanation:
7+3=10x2=20
100-4= 96
96 divided by 20= 4.8
X^3= (1/8). Solve for x
Answer: x= 21 =0.500
x= 8−2− −12 = 4−1−i 3
=−0.2500−0.4330i
x= 8−2+ −12 = 4−1+i 3
=−0.2500+0.4330ix= 21 =0.500
Step-by-step explanation:I hope this helped, if not HMU and I will get you a better answer
-Have a great day! :)
Select all of the numbers that Brooke could multiply by 2386 to get a product greater than 2386
Answer:
Step-by-step explanation:
Any number greater than 1 will give a number greater than 2386
A bookshelf is 3 1/2 feet long if each book to be placed on the shelf is 2 1/4 inches wide, how many books can fit?
The answer is you can fit 18 books on the bookshelf. :)
You can fit 18 books perfectly.
We have a bookshelf of given dimensions.
We have to determine how many books can fit in this shelf.
How many inches are in a feet ?There are 12 inches in 1 feet.
According to the question, we have -
Length of bookshelf = [tex]$3\frac{1}{2}[/tex] feet = [tex]$\frac{7}{2}[/tex] feet = [tex]$\frac{7}{2} \times 12[/tex] inches = 42 inches.
Width of each book - [tex]$2\frac{1}{4}[/tex] inches = [tex]$\frac{9}{4}[/tex] inches.
Assume that the total number of books that can fit in a bookshelf is x. Therefore -
x = [tex]$\frac{42}{\frac{9}{4} } =42\times \frac{4}{9}[/tex]
x = 18.66 = 18 books (Approx.)
Hence, you can fit 18 books perfectly.
To solve more questions on quantity estimation, visit the link below-
https://brainly.com/question/21854275
#SPJ2
Find sinθ and tanθ if cosθ=13/85, assuming that 0≤θ<π/2
Answer:
First notice that θ is in quadrant I, where the sine and tangent will also be positive.
Then draw the angle in quadrant I. Drop a perpendicular to the x axis.
Since cosθ= 7/25, label the horizontal leg 7, and the hypotenuse 25; the vertical leg will be 24 by Pythagorean theorem.
Then sinθ=vertical/hypotenuse= 24/25 and tanθ= vertical/horizontal= 24/7
Step-by-step explanation: I hope this helps!
Answer:
First notice that θ is in quadrant I, where the sine and tangent will also be positive.
Then draw the angle in quadrant I. Drop a perpendicular to the x axis.
Since cosθ= 7/25, label the horizontal leg 7, and the hypotenuse 25; the vertical leg will be 24 by Pythagorean theorem.
Then sinθ=vertical/hypotenuse= 24/25 and tanθ= vertical/horizontal= 24/7
Step-by-step explanation:
Find the slope m of a line parallel to a line with slope -4.
Answer:
-4
Step-by-step explanation:
Parallel lines have the same slope so we know that m = -4.
Answer: -4
Step-by-step explanation:
Parallel lines will always have the same lengths. If one side has -4 as a length, the other will also have -4 as it's length.
Hope this helps you!
The stem and leaf plot here shows the current sale prices
for 60 houses in Horsham, PA, in thousands of dollars.
Note how the key helps communicate the prices.
Describe the distribution of housing prices.
Answer:
Symmetric
Step-by-step explanation:
In the stem and leaf plot above which represents the current sale prices of houses in dollars, we can observe the shape of the distribution seem like that of a bell shape. Most of the data values are concentrated towards the center compared to the concentration at both extremes.
This implies that most of the current sales price is centered close to the median price of roughly 49/50 dollars.
Therefore, the distribution of housing price can be described as roughly symmetric.
Calculate each quotient. Write your answers in lowest terms.
Ms. van said that in the number 26,062 one 6 is 10 times greater than the other 6. Is she correct? WHY or WHY NOT?
is 4.6 bigger than pi
Answer:
Yes it is
Step-by-step explanation:
Pi is measured to be around 3.14 and 4.6 is of course bigger than 3.14 so yes it is
answer:
yes
explanation:
pi is 3.14 (and those numbers going on forever) even though pi looks big, the numbers are behind the decimal which is very small.
sorry I'm bad at explaining but I just went over this in class
4 is bigger than 3 so automatically 4.6 is bigger than pi
HELP ILL MARK YOUR brainliest! And give extes points
1. If there are 8 pints in a gallon, what is 56 pints converted to gallons?
a. 14 gallons
b. 7 gallons
c. 3.5 gallons
d. 5 gallons
Answer:
B
Step-by-step explanation:
Answer:
b 7 gallons
8 pints times 7 gallons is 56 pints
9. Write an equation relating the measures of
21, 22, and 23. Write another equation
relating the measures of 21, 22, and 24.
4
3
1
2
I NEED HELP ASAP PLS!!!!
Answer:
∠1 +∠2 +∠3 = 180°∠1 +∠2 = ∠4Step-by-step explanation:
The sum of the measures of the angles in a triangle is 180°. The equation relating angles 1, 2, 3 will reflect this fact.
m∠1 +m∠2 +m∠3 = 180°
__
Of course, angle 3 is supplementary to angle 4, so we have ...
m∠3 +m∠4 = 180°
Substituting this expression for 180° in the first equation, we have ...
m∠1 +m∠2 +m∠3 = m∠3 +m∠4
Subtracting ∠3 from both sides, we are left with an equation relating angles 1, 2 and 4.
m∠1 +m∠2 = m∠4
__
The "rule" expressing this last relationship is, "an exterior angle is equal to the sum of the remote interior angles." Knowing this relation can make a number of problems easier to solve.
Identify the constant of
proportionality in the
following tables:
Need help ASAP
Answer:
Constant of Proportionality = 2
The second one is 2
The third one is 6
And the fourth one is 2.5
What is the difference between a two step equation and a multi-step equation?
Answer:
When solving a multi step equation, you use PEMDAS (parentheses, exponents, multiplication, division, add, subtract), and you also use PEMDAS when solving a multi step inequality. However, inequalities are tricky in the fact that if you multiply or divide by a negative number, you must flip the sign. And while normally there are 1 or 2 solutions to a multi step equation, in the form of x= #, you'll have the same thing, but with an inequality sign (or signs).
A two-step equation is an algebraic equation that takes you two steps to solve. You've solved the equation when you get the variable by itself, with no numbers in front of it, on one side of the equal sign.
hope it helped
help please asap please
Answer:
b
Step-by-step explanation:
Nazim is buying rice. The supermarket sells 10 kg of basmati rice for $15.45. Today they have a ‘buy 3, get the 4th free’ offer. The wholesaler also offers 50 kg sacks of rice for $59.00. Based on price, which rice should Nazim buy?
Answer:
50 kg sacks of rice for $59.00.
Step-by-step explanation:
Lets do the math. First, I want to see how much 50 kg of of the first option costs.
$15.45 is worth 10kg.
$15.45*3=$46.35
Since the fourth on is free, the sum will stay the same.
$46.35+$15.45=$61.80.
50 kg of the first option is worth $61.80.
50 kg of the second option is worth $59.00.
$61.80 > $59.00.
So, the second option is cheaper and the better deal.
Brainliest is given to the right answer.
Roberto has been playing bass 3 times as many years as his brother Felix has.
Write an algebraic expression for the number of years Roberto has been playing bass. Be sure to indicate what the variable in your expression represents.
Answer:
3f
Step-by-step explanation:
you multiply 3 by f to get the number of years Roberto played bass
Answer:
[tex]R=3(F)[/tex]
Step-by-step explanation:
[tex]R[/tex] = Roberto's years
[tex]F[/tex] = Felix's years
What is the equivalent ratio to the fraction 3/4
Answer:
3:4
Step-by-step explanation:
can someone help me with this??
WWrite improper fraction as a mixed number 19/6
Answer:
3 1/6
Step-by-step explanation:
Answer:
3 1/6
Step-by-step explanation:
