Answer:
Step-by-step explanation:
0.3
A. greater than 0.3
The Margin of error is 0.3 when assuming a 90% confidence level.
What is the margin of error(MOE)?It is defined as an error that gives an idea about the percentage of errors that exist in the real statistical data.
The formula for finding the MOE:
MOE = z score * s/√n
Where is the z score at the confidence interval
s is the standard deviation
n is the number of samples.
here, we have,
It is given that among 320 randomly selected airline travelers, the mean number of hours spent traveling per year is 24 hours and the standard deviation is 2.9.
It is required to find the margin of error when the confidence level is 90%.
We have in the question:
at 90% confidence interval = 1.645 (From the Z score table)
s = 2.9
n = 320
Put the above values in the formula, we get:
MOE = 0.2666
Rounding the nearest tenth:
MOE = 0.3
Thus, The Margin of error is 0.3 when assuming a 90% confidence level.
Learn more about the Margin of error here:
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can you help me with this please
Answer:
f(3) = -9
Step-by-step explanation:
Given that,
→ f(x) = -7x + 12
Then the value of f(3) will be,
→ f(3) = -7(3) + 12
→ f(3) = -21 + 12
→ [ f(3) = -9 ]
Hence, the value is -9.
A snail traveled 2 feet in 90. How far will it travel in 6 hours?
Answer:
it will travel 8 minutes
Step-by-step explanation:
Answer:
[tex]\frac{2}{15}[/tex] feet
Step-by-step explanation:
Set up a proportion: [tex]\frac{2}{90} = \frac{x}{6}[/tex] Cross multiply, then divide: 2 × 6 = 12, 12 ÷ 90 = [tex]\frac{2}{15}[/tex]I hope this helps!
Solve for t in the scientific formula C =Wtc1,000.
Kk someone explain this i feel so dumb thanks
Answer:
Yes
Step-by-step explanation:
The reason is all u do is 12 +1=13 aka 1pm then 30 +50=80 making the time 2:20
Which names the longest segment in the figure?
В
Answer:
PQ
Step-by-step explanation:
Answer: PQ would be the longest segment
Step-by-step explanation:
PQ extend 2 units versus 1
Mddffffvcfffff ggbtevtrvyrvyr eg rh rhbrybryvr th tu rybry th th ht
Answer:
Yup, same.
Step-by-step explanation:
Answer:
(keyboard spam, nice)
A lab assistant tracked an object’s travel time in hours. However, the lab director wants the time tracked in minutes.
A 2-column table with 4 rows. Column 1 is labeled hours with entries 0.5, 0.75, 1.5, 2.5. Column 2 is labeled Minutes with entries 30, 45, 90, blank.
Help the lab assistant complete the table. How many minutes did the object travel after 2.5 hours?
Answer:
150
Step-by-step explanation:
Answer: 150!
Step-by-step explanation:
i did the edge test, i got it right. trust me, i dont lie. :) have a nice day<3
proof:
Can you help me plz!
I hope you can see it
Step-by-step explanation:
a. 102
b. 78
c. 102
d. 102
e. 102
f. 78
Chad and his two friends are picking blueberries at a local farm. Chad picked 2 pounds of blueberries, and one of his friends picked 1 pounds. If they ended up with a total of 5 pounds, how many pounds did Chad's other friend pick? Express your answer as a mixed number.
Answer:
Chad's other friend pick 2 pounds of blue berries.
Step-by-step explanation:
Chad picked 2 pounds of blue berries.
One of his friends picked 1 pound of blue berries.
Totally there is 5 pounds.
So, other friend picked blue berries = 5-2-1 =2 pounds
We get answer as whole number. So no need to write it in mixed form.
Here’s an algebra problem given 20 points and brainliest if correct
Answer:
12/7
Step-by-step explanation:
Hello,
C is the point (0,0)
D is the point (7,12)
So
[tex]\text{slope} =\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{12-0}{7-0}=\dfrac{12}{7}[/tex]
thanks
Answer:
12/7 possibly.
Step-by-step explanation:
Point C is (0,0) and point D is (7,12). Using the formula given, You should have something that looks like this:
[tex]\frac{(12-0)}{(7-0)}[/tex]
Then you solve:
[tex]\frac{12}{7}[/tex]
That would be your answer I believe.
I hope it helps.
The length of a rectangular field is 7 m less than 4 times the width. The perimeter is 136 m. Find the width and length
Answer:
Width: 15 Length: 53
Step-by-step explanation:
Please help!! Thanks
Answer:
the x-intercept is 3 and the y-intercept is -4
Step-by-step explanation:
Answer:
x-intercept: (3,0)
y-intercept: (0,-4)
Two angles form a linear pair. The measure of one angle is 1/3 of the other angle. Find the measure if each angle
Answer:
The measure of the angles is 45° and 135°
Step-by-step explanation:
When two lines intersect, a linear pair of angles is formed. Two angles are said to be linear if they are adjacent, so a linear pair of angles must add up to 180 degrees.
Let's call x and y the two required angles. Knowing they form a linear pair:
x+y=180
We also know one angle is 1/3 of the other angle, thus:
x=y/3
Or, equivalently:
3x=y
Substituting y into the first equation:
x+3x=180
Simplifying:
4x=180
Solving:
x=180/4=45
The other angle is:
y=3x=3\cdot 45=135
Thus the measure of the angles is 45° and 135°
Like I said I’m horrible at math so I’m just gonna keep posting these.
Answer:
slope is -2/1
Step-by-step explanation:
when you find slope of a line, its rise over run
so when ever the line hits a point, it goes 2 down and 1 right (if you explain this simply)
Answer:
m= -2
Step-by-step explanation:
The two points are 0,2 and 1,0 and the equation used between them spits out -2
Lydia missed 74 questions on her multiple choice math final and earned a grade of
63%. How many total questions were on the final exam?
Answer:
117 questions
Step-by-step explanation:
Solve for x2:
y2 − y1 = m(x2 − x1)
this is literal equations btw
Answer:
x2 = y2/m - y1/m + x1
Step-by-step explanation:
Expand
y2 - y1 = mx2 - mx1
Rearrange
y2 - y1 + mx1 = mx2
Divide both sides by m to make x2 on its own
y2/m - y1/m + x1 (m's cancel out) = x2
Hence:
x2 = y2/m - y1/m + x1
Answer:
x2 = x1 + (y2 - y1)/mStep-by-step explanation:
Given equation
y2 − y1 = m(x2 − x1)Solving for x2
y2 − y1 = m(x2 − x1) ⇒ divide both sides by m(y2 - y1)/m = x2 - x1 ⇒ add x1 to both sidesx2 = x1 + (y2 - y1)/mor
x2 = x1 + y2/m - y1/mAt Wal Mart a 32 ounce gatorade cost $ 1.99 and at Target a 24 ounce gatorade costs $1.09. Which store has the better buy?
I believe target has the better deal.
A glass is 1/4
full. Then 70cm3 of orange juice is poured in.
The glass is now 3/5
full. What is the total volume of the glass?
Can you please tell me how to do it as well. Thanks
Find the distance between the points (5, 8) and (-1, 3). Round to the nearest tenth.
Answer:
7.81
Step-by-step explanation:
Given the speeds of each runner below, determine who runs the fastest. Emily runs 15 feet per second. Noah runs 358 feet in 36 seconds. Liz runs 1 mile in 405 seconds. Zach runs 768 feet in 1 minute.
The diagram shows TUV. Which term describes point W?
Answer:
centroid
Step-by-step explanation:
a centroid is the point of intersection of it's medians (center of the sides and the vortexes)
help me !!!!!!!!!!!!!!
Answer:
Step-by-step explanation:
The MAD is 2.
A circle measures _____.
Answer:
360 degress
Step-by-step explanation:
the circumference of a circle is its perimeter or distance around it. it is denoted by c in math formulas and has units of distance, such as milimeters, centimeters, meters, or inches. the circumference of a circle is the easured total length around a circle, which when measured in degrees in equal to 360 degress.
Lines LaTeX: CEC E and LaTeX: ADA D intersect at LaTeX: BB. Lines C E and A D intersect at the point B. Angle A B C is labeled 37 degrees. Select all the true statements. Group of answer choices The measure of angle LaTeX: CBA C B A is equal to the measure of angle LaTeX: DBE D B E . The sum of the measures of angles LaTeX: CBA C B A and LaTeX: DBE D B E is 180 degrees. The measure of angle LaTeX: CBD C B D is equal to the measure of angle LaTeX: ABE A B E . The sum of the measures of angles LaTeX: CBD C B D and LaTeX: CBA C B A is 180 degrees. The sum of the measures of angles LaTeX: CBA C B A and LaTeX: DBE D B E is 90 degrees.
*see attachment below for the figure referred to
Answer:
*The measure of angle <CBA is equal to the measure of angle <DBE.
*The measure of angle CBD is equal to the measure of angle ABE.
*The sum of the measures of angles CBD and CBA is 180 degrees.
Step-by-step explanation:
Since lines CE and AD bisects at D, they form two pairs of vertical angles that are congruent to each other. The vertical angle pairs formed are:
<CBD and <ABE;
<CBA and <DBE
Thus:
m<CBD = m<ABE;
m<CBA = <DBE = 37°
Also, m<CBA + m<CBD = 180° (supplementary linear pair)
m<ABE + m<DBE = 180° (supplementary linear pair)
Therefore, the following statements are TRUE:
*The measure of angle <CBA is equal to the measure of angle <DBE.
*The measure of angle CBD is equal to the measure of angle ABE.
*The sum of the measures of angles CBD and CBA is 180 degrees.
A box of 200 baseball cards included 10 cards that featured the Los Angeles Dodgers.
1. What fraction of the cards featured the LA Dodgers. Use simplest form.
2. What is the amount as a decimal?
3. What percent of the cards featured the LA Dodgers?
Answer:
1. 1/20
2. 0.05
3. 5%
Step-by-step explanation:
Hope it helps :)
Have a good day/night
Brainliest pls?
a cookie recipe uses 5/6 cups of sugar lindsey is making 1 1/2 times what the recipe calls for how much sugar is she using
Answer:
1 1/4 cups of sugar
Step-by-step explanation:
5/6 x 1 1/2 = 1 1/4
Answer:
5/4 cup of sugar.
Step-by-step explanation:
The recipe calls for 5/6 of a cup of sugar, so if you're making 1.5 times what the recipe calls for, you multiply 5/6 by 3/2 (or 1.5 if you prefer decimals) which would give you 15/12. Then simplify down to get 5/4 (or 1.25) cups of sugar.
Note: 5/4 also equals 1 1/4, they are both correct, it just depends on which way you choose to write it, or how your teacher wants you to write it.
Lionel plays trumpet for a minimum of 45 minutes on the days that he practices. If x is the number of days that Lionel practices and y is the total number of hours he spends practicing, what would the inequality be?
The inequality is 0.75x greater than or equal to y
Step-by-step explanation:
Given : Lionel plays trumpet for a minimum of 45 minutes on the days that he practices. If x is the number of days that Lionel practices and y is the total number of hours he spends practicing.
To find : Which inequality represents this situation?
Solution : He plays trumpet for a minimum of 45 minutes
If x is the number of days that Lionel practices then he practices for at least
hours
y is the total number of hours he spends practicing
So, the inequality form is:
i.e, 0.75x is greater than y.
Find the value of f(-5).
Answer:
-5f
Step-by-step explanation:
move -5 to the left of f
What is 3.5 x 10-4 in standard form?
Answer:
The answer is 35000.
Step-by-step explanation:
I WILL GIVE YOU BRAINLIEST IF YOU CAN ANSWER PLEASE !?
Its propertys i have yo find which property it is please help?.
Answer:
Given
distributive property
Subtraction property of equality
Addition property of equality
Division property of equality
Solution
Step-by-step explanation: