Answer:
1.344
Step-by-step explanation:
Given that:
n=49,σ = 4.8
Zcritical = 95%
Using the relation :
Margin of Error = Zcritical * sqrt(σ² / n)
Zcritical at 95% = 1.96
Margin of Error = 1.96 * sqrt(4.8² / 49)
Margin of Error = 1.96 * (4.8 / 7)
Margin of Error = 1.96 * 0.6857142
Margin of Error = 1.344
A worker has 25 feet of ribbon to make bows. Each bow uses 2 feet of ribbon. The worker divides 25 by 2 and gets 12.5 as an answer.
What does the worker's answer mean in this context?
A. The worker can make 12 bows and have 1 foot of ribbon left.
B. The worker can make 12 bows and have 5 feet of ribbon left.
C. The worker can make 5 bows and have 12 feet of ribbon left
D. The worker can make 1 bow and have 12 feet of ribbon left.
Answer: The answer is because 12 is how many bows the work made and 0.5 is 5 feet of the ribbon left.
Three consecutive even integers have a sum of 30 Find the integers.
Select all the representations that are appropriate for comparing bite strength to weight for different carnivores.
Group of answer choices
Scatter plot
Box plot
Histogram
Table
Dot plot
Answer:
Scatter Plot and Table
Step-by-step explanation:
The bite strength to weight for different carnivores can be presented using scatter plot and tables.
What is data representation?
Data representation is a very important skill in data analysis. It enables data to be communicated in a way that is quite understandable to the reader. There are many ways data can be presented depending on the nature of the data to be presented in each case.
In this particular case, the bite strength to weight for different carnivores can be presented using scatter plot and tables.
Learn more about data presentation: https://brainly.com/question/12228859
Helppppp me or I’m going to get a bad grade!
1. They will meet as 7:20 PM
explanation: The first friend runs at a speed of 8 miles per hour.
The second friend runs at a speed of 7 miles per hour.
they left at 6 p.m.
their houses are 20 miles apart,
Since they are running towards each other the effective speed will be
(8+7) = 15 mph
Distance = 20 miles
time they run = 20/15 =4/3 hours
They will meet at 7:20 pm
2. 0
3. 4/5 second
explanation: The time = 4 / {17-12} = 4/5 second
If you add Natalie's age and Fred's age, the result is 38. If you add Fred's age to 3 times
the result is 62. Write and solve a system of equations to find how old Fred and Natalie
Natalie's age,
are.
4. Halla el valor de x. *
(4 puntos
x + 15x + 24 = -21 - 4x
Answer:
x= -9/4
Step-by-step explanation:
1) Isolate X
2) This will give you x+15x+4x=-21-24
(moving terms to another side will make it opposite, in this case positive 24 moving to the right will become negative 24)
3) Add the like terms
x+15x+4x = 20x
-21-24= -45
this will give you 20x=-45
4)Find the value of X by moving the 20 multiplier to the other side (this will become the opposite, division of 20)
x= -45/20
5) Simplify your answer
= -9/4
Molly needs 2.5 yards of fabric to make a blanket. She has
different patterns that contain 2.5 feet of fabric. One yard is
equivalent to 3 feet. How many blankets can she make with
the given material?
Answer:
0 Blankets
Step-by-step explanation:
2.5 yards is 7.5ft, and Molly only has 2.5ft, so she can not make a blanket.
someone please help me with this :(
Answer:
Please find attached pdf
Step-by-step explanation:
Please Anybody help Whoever answer I will give Brainliest no cap
Match the terms
Answer:
-3 = -3x
9x^2 = 9
4x = 4x^2
if f(a)=4a-5 what is f(3)-f(1.25)
Answer:
f(a)=4a-5
1: a= -5 / f−4
f(3)-f(1.25)
2: 1.75f
Step-by-step explanation:
Answer:
fa=4a-5
f(3)-f*1.25
Step-by-step explanation:
Simplify the polynomial
5x−5+11x2+4x−6x2+8
Answer:
x=23
Step-by-step explanation:
Which graph represents the inequality?
n < -2
Graph A
Graph B
Graph C
Graph D
Choose the option that properly uses the distributive property for the following expression.
-1/3(6x+2)
A: 6x-2/3
B: 2x+2/3
C: -2x-2/3
D: -2x+2
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{-\dfrac{1}{3}(6x + 2)}\\\\\\\mathsf{DISTRIBUTE \ (-\dfrac{1}{3})\ within\ the\ PARENTHESES}\\\\\\\mathsf{= -\dfrac{1}{3}(6x)+-\dfrac{1}{3}(2)}\\\\\\\mathsf{-\dfrac{1}{3}(6x)=-2x}\\\\\\\mathsf{-\dfrac{1}{3}(2) = \dfrac{-2}{3}}\\\\\\\mathsf{= -2x + - \dfrac{-2}{3}}[/tex]
[tex]\boxed{\boxed{\mathsf{Answer: \bf -2x - \dfrac{2}{3}\ (Option\ C.)}}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
Need help with this question; What is the measure of one leg of a right angle given that the hypotenuse measure 14cm and the other leg measure 8cm? Please help with explanation. I'll mark you as brainiest.
Answer:
11.5 cm
Step-by-step explanation:
The dimensions of a right angled triangle can be determined using Pythagoras theorem
The Pythagoras theorem : a² + b² = c²
where a = length
b = base
c = hypotenuse
a² + 8² = 14²
a² + 64 = 196
a² = 196 - 64
a² = 132
find the square root of 132
a = 11.5 cm
How can you prove the triangles congruent below given the following
information. Given: segment PN and segment KQ bisect each other.
Answer:
i think is sas......i hope im not wrong
Solve for x
30°
18 + 6x
4x + 2
Answer:
x=13
180=30+18+6x+4x+2
COMBINE LIKE TERMS
180=10x+50
SOLVE EQUATION
130=10x
x=13
Answer:
x = 13
Step-by-step explanation:
the______is the distance around the boundary of a circle
Answer:
Circumference. hope this helped!
12y+15=24-6y ??????????????????
Answer:y=1/2
Step-by-step explanation:
HELP ASAP ILL GIVE YOU AN Additional 20 points PLEASE HELP IT"S DUE IN 10 mins
The city has commissioned your painting firm to paint all trash cans in the parks. Before ordering paint, you need to calculate the area of the surfaces needing paint. Below are the dimensions of one side of a trash can.
What is the area of one side of a trash can, in square feet?
6
10
12
14
16
whats the domain and range?
Find the gradient of the line segment between the points (-4,-5) and (2,-4).
Answer:
1/6
Step-by-step explanation:
The gradient of the line segment is the same as slope
m = (y2-y1)/(x2-x1)
= ( -4 - -5)/( 2 - -4)
= (-4+5)/( 2 +4)
1/6
Answer:
Step-by-step explanation:
Gradient = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\[/tex]
[tex]=\frac{-4-[-5]}{2-[-4]}\\\\=\frac{-4+5}{2+4}\\\\=\frac{1}{6}[/tex]
HELP ME PLZZ, ASAP!!
6.) Find the measure of a.
115°
Answer:
65 degrees :)
Step-by-step explanation:
If you have 115 degrees, and you know triangles are always 180 degrees in total, then you have to subtract 115 from 180 to get your answer for what the measures are. 180-115=65
So it's 65 degrees.
I think this is what you want to know :)
EASY (but not for me lol)
Find the point of intersection
(In coordinates)
Answer:
(10,5)
Step-by-step explanation:
A point of intersection is where the two lines meet at one specific point. If you look at the graph you can see a blue point where they intersect. Find the coordinate of that (10,5)
The base of a parallelogram is 21 yards. Find the height if the area of the parallelogram is 525 square
Answer:
25 yards
Step-by-step explanation:
A parallelogram is a quadrilateral (a four sided object) with parallel sides
Some of the characteristics of a parallelogram includes :
Opposite sides and angles are congruent . Opposite angels are congruent (D = B). Consecutive angles are supplementary (A + D = 180°). The diagonals bisect each otherArea of a parallelogram = base x height
Area = 525
base = 21 yards
height = ?
525 = 21 x height
divide both sides of the equation by 21 to find the value of the height
525 / 21 = height
height = 25 yards
Calculate the discriminant of the quadratic equation.
Please I really need your help
Answer:
The discriminant of the quadratic equation is 0
Step-by-step explanation:
Here, we want to calculate the discriminant of the given quadratic equation
Mathematically, we have the discriminant calculated by the following formula;
D = b^2 - 4ac
where;
b represents the coefficient of x which is -2
a is the coefficient of x^2 which is 1/7
c is the last number which is 7
Substituting these values;
D = (-2)^2 -4(1/7)(7)
D = 4 - 4
D = 0
On a social studies test, you get 86 out of a possible 100 points. Write a decimal, a percent, and a fraction in simplest form that represents a score of 86 out of 100. Pls hurry.
Answer:
0.86, 43/50, 86%
Step-by-step explanation:
Hey guys! Please help if you can thank you SO much!
Answer:
0.80a + 0.95b
Step-by-step explanation:
They have given 2 different terms, which demonstrates the number of bananas and apples she may buy.
To find the total price we multiply the cost of one item with the number of items.
So the total cost for apples is 0.80 × a = 0.80a
And the total cost for bananas are 0.95 × b = 0.95b
Altogether, the amount will be: 0.80a + 0.95b
Nate starts a lawn-mowing business. In his business, he has expenses and revenue. Nate's expenses are the cost of the lawn mower and gas, and his revenue is $25 per lawn
The question is incomplete. The complete question is :
Nate starts a lawn-mowing business. In his business, he has expenses and revenue. Nate's expenses are the cost of the lawn mower and gas, and his revenue is $25 per lawn. At what point will Nate's revenue exceed his expense?
Cost of lawn mower = $ 200
Cost of gasoline = $ 2 per lawn
Solution :
Given :
Cost of the lawn mower = $ 200
The cost of gasoline expense for one lawn = $ 2
The revenue generated for one lawn = $ 25
So let the number of lawn to be mowed = x
Therefore the total expenses = [tex]$200+2x$[/tex]
So, the total revenue = [tex]$25x$[/tex]
The point for which the revenue will exceed the total expenditure will be :
[tex]$25x \geq 200+2x$[/tex]
So at [tex]x=9, \ 225 > 218[/tex]
Thus the revenue exceeds the total expenditure after mowing 9 number of lawns.
Answer:
For part a and b of this question
Step-by-step explanation:
x= # of lawns cut y= total cost
revenue: y=25x
cost: y= -2x-200
He earns 25 per lawn, but loses $200 for his lawnmower and $2 per lawn.
b. y=25x y=-2x-200 y=25x
y=-2x-200 25x=-2x-200 y=25(-7.40)
27x= -200 y=-185
x=-7.40
I believe this is correct.
The other option is d which is “(4,2)”