Answer:
2540000 x
Step-by-step explanation
the answer is 2540000...
Explain the special pattern for sketching a parabola
Answer:
the parabola can be written as:
f(x) = y = a*x^2 + b*x + c
first step.
find the vertex at:
x = -b/2a
the vertex will be the point (-b/2a, f(-b/2a))
now, if a is positive, then the arms of the parabola go up, if a is negative, the arms of the parabola go down.
The next step is to see if we have real roots by using the Bhaskara's equation:
[tex]x = \frac{-b +-\sqrt{b^2 -4ac} }{2a}[/tex]
Now, draw the vertex, after that draw the values of the roots in the x-axis, and now conect the points with the general draw of the parabola.
If you do not have any real roots, you can feed into the parabola some different values of x around the vertex
for example at:
x = (-b/2a) + 1 and x = (-b/2a) - 1
those two values should give the same value of y, and now you can connect the vertex with those two points.
If you want a more exact drawing, you can add more points (like x = (-b/2a) + 3 and x = (-b/2a) - 3) and connect them, as more points you add, the best sketch you will have.
3. Tanya needs to buy dirt for her children's playground.
The dirt costs $8 per ton, and there is a delivery cost
of $12 with each order.
If Tanya needs 5.5 tons, what will the cost be?
C=
Solve the equation, 3x – 6 = 12, for x. Which of the following properties did you apply? Question 1 options: A) Distributive property, subtraction property of equality, and multiplication property of equality B) Distributive property, addition property of equality, and division property of equality C) Addition property of equality and multiplication property of equality D) Addition property of equality and division property of equality
Answer:
D) Addition property of equality and division property of equality
Step-by-step explanation:
Step(i):-
Given equation 3 x -6 =12
Apply addition property of equality
Adding '6' on both sides , we get
3 x - 6 + 6 = 12 +6
3 x = 18
Step(ii):-
Apply Division property of equality
Dividing '3' on both sides , we get
[tex]\frac{3 x}{3} = \frac{18}{3}[/tex]
on simplification , we get
x = 6
Conclusion:-
The solution of the given equation is x =6
Answer:
D) Addition property of equality and division property of equality
Step-by-step explanation:
Write each as a percent. Round to the nearest tenth of a percent
Answer:
0.9
Step-by-step explanation:
0.89
Tenths is the first number after the decimal
The second number after the decimal is higher than 5 is so you round the number next to it
So the answer is 0.9
0.9 as a percentage is 90%
An electronics store is selling a laptop for $760 at several of its locations. The production costs for this model of laptop have been included in
the graph, along with the expected revenue. How many laptops must the electronics store sell to break even?
160.000
WWW
-50,000
40,000
Total (dollars)
-30,000
Cx)
20,000
1,800
50
160
Number of Laptops
4
Answer:
B. 58
Step-by-step explanation:
In the picture attached, the question is shown.
At the break-even point, costs and revenues are equal. From the picture, we can see that both curves, C(x) - cost - and R(x) - revenue - are equal at some point between 50 and 60 laptops, then the correct option is 58.
On a coordinate plane, a square and a point are shown. The square has points R prime (negative 8, 1), S prime (negative 4, 1), T prime (negative 4, negative 3), and U prime (negative 8, negative 3). Point S is at (3, negative 5). Square RSTU is translated to form R'S'T'U', which has vertices R'(–8, 1), S'(–4, 1), T'(–4, –3), and U'(–8, –3). If point S has coordinates of (3, –5), which point lies on a side of the pre-image, square RSTU? (–5, –3) (3, –3) (–1, –6) (4, –9)
Answer:
(–1, –6)
Step-by-step explanation:
Given that S(3, –5) was translated to S'(–4, 1), the transformation rule is (x-7, y+6). Then, the coordinates of square RSTU are:
R'(–8, 1) -> (-8+7, 1-6) -> R(-1, -5)
S'(–4, 1) -> (-4+7, 1-6) -> S(3, -5)
T'(–4, –3) -> (-4+7, -3-6) -> T(3, -9)
U'(–8, –3) -> (-8+7, -3-6) -> U(-1, -9)
The point (–1, –6) lies on the segment RU
The point that lies on a side of the pre-image is mathematically given as
x=(-1,-6)
What is a Pre-Image?A pre-image is simply a the group of chosen elements from a mapped domain to give a given subset of the codomain.
What points can be found on the pre-image, square RSTU?Question Parameter(s):
which has vertices
R'(–8, 1),
S'(–4, 1),
T'(–4, –3),
U'(–8,
Generally, the equation for the transformation is mathematically given as
(x-7, y+6).
Therefore
R'(–8, 1) --> (-8+7, 1-6)
R'(–8, 1) --> R(-1, -5)
S'(–4, 1) -=> (-4+7, 1-6)
S'(–4, 1)-> S(3, -5)
T'(–4, –3) --> (-4+7, -3-6)
T'(–4, –3 -> T(3, -9)
U'(–8, –3) --> (-8+7, -3-6)
U'(–8, –3)-> U(-1, -9)
In conclusion, point S with coordinates of (3, –5) lies within RU
x=(-1,-6)
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Select all the situations where knowing the volume of an object would be more useful than knowing its surface area. *
A. Determining the amount of paint needed to paint a barn.
B. Determining the monetary value of a piece of gold jewelry.
C. Filling an aquarium with buckets of water.
D. Deciding how much wrapping paper a gift will need.
E. Packing a box with watermelons for shipping.
F. Charging a company for ad space on your race car.
G. Measuring the amount of gasoline left in the tank of a tractor.
Answer: C, E, G
Step-by-step explanation:
To measure the amount of gasoline left in the tank of a tractor we need to determine volume. Therefore, the correct options are C, E and G.
What is the volume?Volume is the measure of the capacity that an object holds.
Formula to find the volume of the object is Volume = Area of a base × Height.
A) Determining the amount of paint needed to paint a barn.
Need to determine the surface area barn.
B) Determining the monetary value of a piece of gold jewelry.
Need to determine the surface area of gold jewelry.
C) Filling an aquarium with buckets of water.
Need to determine the volume of aquarium and bucket.
D) Deciding how much wrapping paper a gift will need.
Need to determine the surface area of a paper.
E) Packing a box with watermelons for shipping.
Need to determine the volume of box and watermelon.
F) Charging a company for ad space on your race car.
Need to determine the surface area of ad space on your race car.
G) Measuring the amount of gasoline left in the tank of a tractor.
Need to determine the volume of the tank of a tractor.
Therefore, the correct options are C, E and G.
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SOMEONE PLEASE HELP ME ASAP PLEASE!!!
Answer:
29
Step-by-step explanation:
45-16=29
Answer:
The length of AB is 29.
Step-by-step explanation:
You can tell by the endpoints of the line, A is 16 and B is 45. To find the length of a horizontal segment like this one, just subtract the larger endpoint value from the smaller one. Hope this helps!
You deposit $4300 in an account that earns 2% per year simple interest. The equation that represents this situation is: A(n) = 4300 + (n - 1)(0.02 • 4300) How much will you have in the account at the beginning of the 8th year? Round your answer to the nearest dollar. A. $10,320 B. $4988 C. $4902 D. $4386
Answer: $4902
Step-by-step explanation:
Amount = P (1 + rt)
= 4300 (1 + .02 * 7)
= 4300 (1 + .14)
= 4300 (1.14)
= 4902
What is the probability of having children that are all boys?
1/2
1/8
3/8
What if f(0)? (The function f(x) is shown on the graph)
Answer:
35
Step-by-step explanation:
Answer:
please include the graph...
Step-by-step explanation:
Simpson deposits $1,200 in a savings account that earns simple interest at the rate of 5% per year. What interest does he earn at the end of 1 year?
-must haves :)..
right answer.
makes sense.
step by step.
^I will mark someone the brainliest when someone answers this, thank youuu:)
Answer:
1,260
Step-by-step explanation:
(a) How could you calculate 23 x 4 on your calculator if the 4 button is broken? (b) How could you calculate 23 x 21 if the 2 button on your calculator is broken?
Answer:
You could add, subtract, multiply, and divide them to find the 21 or 4. then you just click the multiply and click 23.
A cylinder has a base diameter of 6 centimeters and a height of 15 centimeters. What
is its volume in cubic centimeters, to the nearest tenths place?
Answer:
90
Step-by-step explanation:
Answer:
90
Step-by-step explanation:
Twice a number plus three times a second number is negative one. The first number plus four times the second number is two.
Answer:
Step-by-step explanation:
The first number is -2 and the second number is 1
Answer:
The first number is -2 and the second number is 1.
Step-by-step explanation:
2n + 3s = -1
(n + 4s = 2)-2 Multiply by -2 to cancel the n
2n + 3s = -1
-2n - 8s = -4 Add these equations together
-5s = -5 Divide both sides by -5
s = 1
Plug this into the first equation to find the value of n
2n + 3(1) = -1 Multiply
2n + 3 = -1
- 3 - 3 Subtract 3 from both sides
2n = -4 Divide both sides by 2
n = -2
Help me out please not the last one but last one
Answer:
d
Step-by-step explanation:
Pythagorean theorem
a^2 + b^2 = c^2
C = 10
a = 6
c^2 - a^2 = 100 - 36 = 64
sqrt. 64 = 8
hope this helps
Answer:
8
Step-by-step explanation:
Use pythagerom therom we know the hypotneusis 10 and the base is 6 so we do 100^2 - 6^2 and get 64 then we take the square root of 64 and get 8
what is the surface area of the given figure
Answer:
1,728cm square
Step-by-step explanation:
Surface area=sum of all faces of a polygon
Let's do the biggest ones: 32•20=640
32•16=512
Now the rest:
12•32=384
16•12=192 192÷2=96
16•12=192 192÷2=96
Now add it all up: 640+512+384+96+96=1,728cm square
Can somebody answer this????
Answer:
x ≥ 0
Step-by-step explanation:
The domain is the input values for the function
In this case it is what x can equal
In looking at the graph, x is greater than or equal to zero
x ≥ 0
which of the following is the proper name for the figure below
Answer:
d
Step-by-step explanation:
you name a triangle by its vertices so the only vertices are J,K and E. so the answer is JKE
Answer:
The answer is option 4.
Step-by-step explanation:
In the diagram, A, O and R are the lengths of the triangle. So the best way to identify the triangle using angles is ΔAKE.
you put your money into a savings account, and it warns interest find the simple interest paid on your investment of $1675 with 2% interest over ten years
Answer:
$335Step-by-step explanation:
[tex]p = 1675 \\ r = 2\% \\ t = 10 \: \: years[/tex]
Now let's find the simple interest.
[tex] \frac{prt}{100} \\ = \frac{1675 \times 2 \times 10}{100} \\ = \frac{3350}{10} \\ = 335[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
A magazine asks its readers to complete a survey on their favorite music and TV
celebrities. Classify the sample as one of the following.
A simple
B stratified
C convenience
D self-selected
Answer:
C convenience
Step-by-step explanation:
Convenience sampling (also known as availability sampling) is a type of non-probability sampling method in which data is collected from population members who are readily available for survey. An example for convenience sampling is the use of questionnaires or magazine to ask questions.
It is the most commonly used method of sampling because it is cheap incredibly prompt and uncomplicated.
Answer:
The correct option is;
D. Self-selected
Step-by-step explanation:
Self-selected sampling also known as volunteer sampling is a sampling method in which participants are those that voluntarily respond to an advert or to the request of the researcher who ask for members of the population to take part in the study
The magazine in the question has put out a survey of which the magazine is asking readers to complete and the readers can then decide if they wish to participate in the study which is a form of self-selected sampling.
Select true or false to tell whether the following disjunctions are true or false. Use the truth table if needed.
5 · 3 = 15 or 7 + 5 = 20
True
False
Gloria decides to buy 4 ferns, 2 Palms, 10 Lilies and 8 shrubs. To show the total
cost of the plants as an expression, first set up an expression showing how the
distributive property can shorten the process and then simplify it.
Step by step
Answer:
[tex]Total Plants = 4F + 2P + 10L+ 8S[/tex]
[tex]Total Plants = 2(2F + P + 5L+ 4S)[/tex] --- Distributive property
Step-by-step explanation:
Given
Ferns = 4
Palms = 2
Lillies = 10
Shrubs = 8
Required
Show the total cost of plants as an expression
Shorten it using the distributive property
First, represent Ferns with F; Palms with P; Lilies with L and Shrubs with S;
So, 4 Ferns = 4F
2 Palms = 2P
10 Lilies = 10L
8 Shrubs = 8S
Total Plants = Summation of the above parameters
[tex]Total Plants = 4F + 2P + 10L+ 8S[/tex]
The above expression represents the total plants bought;
Now, to apply the distributive property; we simply look for a common factor;
In this case, the common factor is 2;
So, [tex]Total Plants = 4F + 2P + 10L+ 8S[/tex] becomes
[tex]Total Plants = 2(\frac{4F}{2} + \frac{2P}{2} + \frac{10L}{2}+ \frac{8S}{2})[/tex]
[tex]Total Plants = 2(2F + P + 5L+ 4S)[/tex]
3a + 7b > 2a – 8b solve for a
Answer:
a > -15b
Step-by-step explanation:
3a + 7b > 2a – 8b
3a - 2a > - 8b -7b
a > -15b
The value of is as follows:
a > -15b
3a + 7b > 2a – 8b
The question wants us to make a the subject of the formula,
Therefore,
3a + 7b > 2a – 8b
subtract 2a from both sides
3a - 2a + 7b > 2a - 2a - 8b
a + 7b > - 8b
subtract 7b from both sides
a + 7b - 7b > - 8b - 7b
a > -15b
Therefore,
a > -15b
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Which phrase represents the algebraic expression 5x - 9?
Answer:
The difference of five times a number and nine.
Step-by-step explanation:
Five times a number is for 5x, and putting a difference before that means it separates the 5x and 9 with a minus sign.
Answer:
The answer is D: The difference of five times a number and nine.
Step-by-step explanation:
Cole brought chocolate and vanilla cupcakes to school for his birthday. 40 students decided to take a cupcake, and 90% of them picked vanilla. How many people picked a vanilla cupcake?
PLEASE ANSWER DUE SOON
Answer:
36 people picked a vanilla cupcake
Step-by-step explanation:
40 * 90%
= 40 * 0.9
= 36
Answer:
36 = people picked a vanilla cupcake
= 40 * 0.9
= 36
please help me !!!!!!!
Answer:
A.
Step-by-step explanation:
First person to answer will mark brainliest
Answer:
B is correct my guy. Hope this helps!
A- A counter rotation of 270 around the origin
B- A counterclockwise rotation of 90 around the origin
C- A reflection over the x-axis
D- A translation down 5 units
Answer:
Step-by-step explanation:
how do u delete ur answer
Answer:
B- A counterclockwise rotation of 90 around the origin
Step-by-step explanation:
Have a great day!
There are 25 students in a class. 16 of those students are boys. What percent of the class are girls?
The percent of girls in the class is ____ %
Answer:
36 %
Step-by-step explanation:
9 girls = 36%
25 students = 100
Answer:
Step-by-step explanation:
25 students in a class and 16 out of the 25 students in the class are girls. There are 9 boys in the class because "25-9=16"
HOW TO SOLVE If we know that 9 out of the 25 students in the class are girls, we can represent it as the fraction . Next, we divide 35 by 9 to get a quotient of 0.36 and then multiply by 100 to get our percent of girls in the class which is 36%
