Quadrilaterals and other polygons
Answer:
B
Step-by-step explanation:
HW#4: You are shopping at Target and 10 sheets of stickers cost $20.50...A. what would 3 sheets cost? B. what would 19 sheets cost? *
Answer:
50$b
Step-by-step explanation:
Determine the constant of proportionality for each table as y=kx
Pls freaking help me
Answer:
1,000
Step-by-step explanation:
all you have to do is y/x
3,000/3=1,000
I need the answer plzzz I really need it plzz help me
Answer:
Never learned it sorry but I have no idea bro good luck
Brianna makes a model of the Eiffel Tower for a school project. Her model is 25 centimeters wide at the bottom
If Brianna used a scale of 1 centimeter for every 5 meters, how vide is the actual Efe Towet?
The actual Eiffel Tower is 125 meters wide .
What is Multiplication?
Along with addition, subtraction, and division, multiplication is one of the four basic arithmetic operations. In mathematics, multiplication is the repeated addition of groups of equal size.
Here given, Brianna makes a model of the Eiffel Tower for a school project.
It is also given that the model is 25 cm wide at the bottom and Brianna used a scale of 1 centimeter for every 5 meters.
By multiplication, we can find the actual length of Eiffel tower
Here 1 centimeter for every 5 meters.
So, 25 centimeter means (5×25) = 125 meters.
Therefore, the actual length of the Eiffel tower is 125 meters.
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"Correct question is "Brianna makes a model of the Eiffel Tower for a school project. Her model is 25 centimeters wide at the bottom
If Brianna used a scale of 1 centimeter for every 5 meters, how wide is the actual Eiffel Tower?"
Is this a proportional relationship?
Answer: yes
explanation: it starts at the origin of 0,0, which means its a proportional relationship
Which of these graphs represents a function?
2
5-4-3-2-1,
2
5
15-4-3-2-1,
4
2
3
4
w.
x
y
ST
ST
1
-5-4-3-2-1.
1
45
5-4-3-2-
2
Y
Z.
2020 Edimentum. All rights reserved.
The correct graphs which represents a function is shown in ''Option B.''
What is mean by Function?A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
Given that;
There are four graphs are shown in image.
Now, We can check all the graph by vertical line test.
If the vertical line cut only at one point of the graph, then, it shows the function.
If the vertical line cut more than one point of the graph, then, it cannot shows the function.
Hence, By vertical line test,
The correct graphs which represents a function is shown in Option B.
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Which is one of the transformations applied to the graph of f(x)=x2 to change it into the graph of g(x) = -x2 + 16x – 44?
The graph of f(x) = x2 is widened.
The graph of f(x) = x2 is shifted left 8 units. O
The graph of f(x) = x2 is shifted down 44 units.
The graph of f(x) = x2 is reflected over the x-axis.
Answer:
Only option D is one of the transformations needed.
Step-by-step explanation:
The graph of f(x)=x^2 is a positive parabola with x=0 as the zero in ordinates and also 0 as a zero x. This is, the graph passes in (0,0) and this is the only point it crosses both axis, then for every x value we will gave a positive f(x).
Here I attach a graph that shows both, f(x)=x^2 and g(x)=-x^2+16x-44.
As you can see, for transforming f(x) in g(x) we need to reflect it over the x axis, as g is open downwards. Then, as the quadratic term is still being x^2 we do not wide it (as you see in the graph both curves are equally widened).
Then, we can also see that the graph is shifted right, so we do not shift it left 8 units (notice that we shift it right 8 units).
So, after reflecting over the x axis and shifting right we need to shift it UP, as we can see the graph is over the x axis.
So, the three transformations needed are:
1. reflect over the x axis
2. shift right 8 units
3. shift up 20 units.
So, from the options you proposed we chose only d, to which we MUST add the transformations noted above.
Sorry for the mistake!
Answer:
d
Step-by-step explanation:
You have 50 quarters. You find 20% more quarters in your room. Then you go shopping and spend 75% of the total number of quarters. Write an expression to represent the total number of quarters you take with you shopping. Calculate, in dollars, the amount of money you have left.
Answer:
3.75
I think this is the answer
Answer:
50+(50×0.20)
and $3.75
If A is the area of a circle with radiusr and the circle expands as time passes, find dA/dt in terms of dr/dt.
So I have, A= π r2
dA/dt = 2π r (dr/dt)
Answer:
[tex]\frac{dA}{dt} = 2\pi r(\frac{dr}{dt})[/tex]
Step-by-step explanation:
Your solution is correct (See explanation):
Area (A) of a circle is
[tex]A = \pi r^2[/tex]
Where
[tex]r = radius[/tex]
Differentiate both sides with respect to t
[tex]\frac{dA}{dt} = 2\pi r(\frac{dr}{dt})[/tex]
This is so because, we have to differentiate A on the left hand side and r on the right hand side because [tex]2\pi[/tex] is a constant
Hence, your solution is correct and and
[tex]\frac{dA}{dt} = 2\pi r(\frac{dr}{dt})[/tex]
A scooter travels 30 feet in 2 seconds at a constant speed.
The distance the scooter travels in 1 second is
feet. The distance the scooter travels in 3 seconds is
feet. The distance the scooter travels in 4 second is
feet. The distance the scooter travels in 5 second is
feet.
Answer:
The scooter travels 15 feet in 1 second
The scooter travels 45 feet in 3 seconds
The scooter travels 60 feet in 4 seconds
The scooter travels 75 feet in 5 seconds
Step-by-step explanation:
First, let's find the number of feet the scooter travels in 1 second
(30 : 2) ÷ 2 = 15 : 1
Now that we have the unit rate, we can easily find the answers to the other questions.
(15 : 1) x 3 = 45 : 3
(15 : 1) x 4 = 60 : 4
(15 : 1) x 5 = 75 : 5
I Hope That This Helps! :)
The diagram shows a regular dodecagon. Work out the size of one interior angle
9514 1404 393
Answer:
150°
Step-by-step explanation:
The size of one interior angle of a regular n-gon is ...
interior angle = 180° - 360°/n
For n=12, this measure is ...
= 180° -360°/12 = 180° -30°
interior angle = 150°
Answer:
150
Step-by-step explanation:
610=900-c
How do I find the answer to this
Answer:
C = 290
Step-by-step explanation:
Solve for C
c = 900 - 610
c = 290
Use the distributive property to write an expression that is equivalent to 8(7+x).
Answer:
56+8x
Step-by-step explanation:
Which ordered pair is the solution to the system of equations?
x+2y=−8
y=1/2x−2
a(−4, −4)
b(−2, −3)
c(−6, −5)
c (−2, −1)
Answer:
x = -2 and y = -3
Step-by-step explanation:
What is the following product?
Answer:
C. [tex]\sqrt[6]{432}[/tex]
Step-by-step explanation:
[tex]\sqrt[3]{4}\ \cdot\sqrt{3}[/tex] = 2.749459274
[tex]\sqrt[6]{432}[/tex] = 2.749459274
[tex]\sqrt[3]{4}\ \cdot\sqrt{3}[/tex] = [tex]\sqrt[6]{432}[/tex]
Find the value of expression for (3.4) to the power of 2 show your work.
Answer:
11.56
Step-by-step explanation:
Mr. Davin has 32 footballs. this is four times as many footballs as Miss Davin has. how many footballs does Miss Davin have?
Answer:
the answer is 8
Step-by-step explanation:
times 4 8 times and it is 32
Answer:
4 times 32
Step-by-step explanation:
is your answer 128
) How many degrees of freedom are available for hypothesis tests and confidence intervals for single regression coefficient
Answer:
We use students' t distribution therefore degrees of freedom is v= n-2
Step-by-step explanation:
Confidence Interval Estimate of Population Regression Co efficient β.
To construct the confidence interval for β, the population regression co efficient , we use b, the sample estimate of β. The sampling distribution of b is normally distributed with mean β and a standard deviation σ.y.x / √(x-x`)². That is the variable z = b - β/σ.y.x / √(x-x`)² is a standard normal variable. But σ.y.x is not known so we use S.y.x and also student's t distribution rather than normal distribution.
t= b - β/S.y.x / √(x-x`)² = b - β/Sb [Sb = S.y.x / √(x-x`)²]
with v= n-2 degrees of freedom.
Consequently
P [ - t α/2< b - β/Sb < t α/2] = 1- α
or
P [ b- t α/2 Sb< β < b+ t α/2 Sb] = 1- α
Hence a 100( 1-α) percent confidence for β the population regression coefficient for a particular sample size n <30 is given by
b± t α/2 Sb
Using the same statistic a confidence interval for α can be constructed in the same way for β replacing a with b and Sa with Sb.
a± t α/2 Sa
Using the t statistic we may construct the confidence interval for U.y.x for the given value X0 in the same manner
Y~0 ± t α/2(n-2) SY~
Y~0= a+b X0
If a rectangle is 10 units wide and x units long what is the perimeter of this rectangle
Answer:
20+2x
Step-by-step explanation:
If you're just looking for an expression, then it would be 20+2x considering there's no way to solve for x, and there's 2 widths and 2 lengths of a rectangle
Answer:
20+2x
Step-by-step explanation:
PLSSSS HELPPPP I WILLL GIVE BRAINLIEESTTT!!!!!!!!!!
Answer:
Yes, this is a function.
No, this is not a linear function.
Step-by-step explanation:
A function is a process or a relation that associates each element x of a set X, the domain of the function, to a single element y of another set Y
Linear functions are those whose graph is a straight line. A linear function has the following form. y = f(x) = a + bx. A linear function has one independent variable and one dependent variable.
If this was helpful please mark brainliest. Have a great day.
Find the greatest common factor of 15x2y3 and -20x3yz.
Answer:
5x^2y is the GCF for 15x2y3 and -20x3yz.
Step-by-step explanation:
WILL MARK BRAINLIST!!!
Sabrina's average speed was 8 miles per hour during the first half of her bike ride. She increased her average speed to 16 miles per hour during the second half of her bike ride. What percentage represents the increase in Sabrina's average speed during her bike ride?
A. 50%
B. 80%
C. 100%
D. 200%
A field hockey field is rectangular. Its width is 54.88 meters, and its perimeter is 289.76 meters. Find the length of the field.
Answer:
90 PLEASE MARK ME BRAINLLIEST
Step-by-step explanation:
289.76-54.88-54.88=180/2=90
Perimeter is the sum of the length of the sides used to make the given figure. The length of the field is 90 meters.
What is the perimeter?Perimeter is the sum of the length of the sides used to make the given figure.
Given that the width of the field is 54.88 meters and the perimeter of the field is 289.76 meters. Therefore, we can write the perimeter as,
Perimeter = 2(Length + Width)
289.76 meters = 2(Length + 54.88 meters)
289.76meters / 2 = Length + 54.88 meters
144.88metes = Length + 54.88 meters
Length = 144.88 meters - 54.88 meters
Length = 90 meters
Hence, the length of the field is 90 meters.
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B gn nonnegotiable BMI Brock chambers k cancel j click chilling connect m BLM
Answer:
what?
Step-by-step explanation:
free points...thanks?
I need help This assignment is due Tomorrow let’s go
Answer:
1. C 25 because it's the opposite
2. B. 2 because there is only two negative
3. B. The opposite of 2 1/2 that will be negative
4. I can't see
5. C because if it had [5 3/4] it will be -5 3/4
6. A, C, and F
7. I don't know
Tim can swim 150 meters in 6 minutes.
How long will it take him to swim 400 m?
Answer:
Step-by-step explanation:
150/6 = 25. that is your unit rate
400/25= 16 minutes
what is the expanded notation for 7,5612
Answer:
7.5612 × 10 ^4
Step-by-step explanation:
You move the decimal until there is one digit to the left of the decimal. However many times you moved it becomes the power of the 10. If you move the decimal to the right, it will be negative. If you move the decimal to the left, it will be positive.
Factor the expression completely.
3x + 24
Answer:
3(x+8)
Step-by-step explanation:
In order to factor the expression completely, you need to find the greatest common factor of both numbers, which would be 3 because 3 fits in both numbers without leading to weird decimals or fractions.
3(x+8) is the answer.
7.901×10 to the 12th power in standard form
Answer:
7019
Step-by-step explanation:
Answer:
Nan-9
Step-by-step explanation: