Answer:
C)
Step-by-step explanation:
Area of bottom of pool = length * width
a = 14 * 6
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.
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
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
The population of algae in an experiment has been increasing by 5% each day. If there were 5p algae at the beginning of the experiment, predict the number of algae in 7 days. Help asap
Answer:
Number of algae in 7 days = 70.355
Step-by-step explanation:
Given:
Algae in beginning = 50
Rate of increasing = 5% per day = 0.05
Number of days = 7 days
Find:
Number of algae in 7 days.
Computation:
[tex]Number\ of\ algae\ in\ 7\ days = Algae\ in\ beginning(1+Rate\ of\ increasing)^{Number\ of\ days}\\\\Number\ of\ algae\ in\ 7\ days = 50(1+0.05)^7\\\\Number\ of\ algae\ in\ 7\ days = 70.355[/tex]
Number of algae in 7 days = 70.355
Answer:
70
Step-by-step explanation:
Acellus
A hemispherical tank is filled with water and has a diameter of 15 feet. If water weighs 62.4 pounds per cubic foot, what is the total weight of the water in a full tank, to the nearest pound?
Answer:
55135 lbs
Step-by-step explanation:
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!
Simplify the polynomial-
-3f²+4f-3+8f²+7f+1
Please help!!
I don't understand how to do this or anything with Polynomials really and I really need someone to explain in the easiest way possible!!
As the result of experimental work, a student finds the density of a liquid to be 0.1369 g/㎤. The known density of that liquid is 0.1478 g/㎤. What is the percent error of this student's work? (Round final answer to the nearest tenth if necessary
Answer:
Percent error is [tex]7.4\%[/tex]
Step-by-step explanation:
Given:
As per the result of experimental work, density of a liquid is 0.1369 g/㎤
Known density of the liquid is 0.1478 g/㎤
To find: percent error
Solution:
The density of a substance is defined as mass per unit volume.
S.I. unit is Kilogram per cubic metre.
Error = Actual density - density as per the experiment = [tex]0.1478-0.1369=1.0109\,\,g/cm^3[/tex]
Percent error = ( error/Actual error ) × 100 = [tex]\frac{0.0109}{0.1478}\times 100=7.4\%[/tex]
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:
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
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
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:
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
I need help on this.
Answer:
The question itself is wrong .As u know curly brackets should be inside big brackets.So in other words the first step is wrong.
The correct solving would be
Step-by-step explanation:
Mistake first appears in step no.1
We have to use the BODMAS rule
B=Bracket
O=Of
D=Division
M=multiplication
A=Addition
S=Subtraction
Hope it helps..And the right answer of that expression is 116
Please see the attached picture for the full solution
Hope it helps...
Good luck on your assignment
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.
To learn more about the volume visit:
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What is 5 1/2 • 2 1/3
Answer:
77/6 or 12 5/6
Step-by-step explanation:
put it into improper fraction
then multiply 11/2 by 7/3
what relationship do you see when comparing the equivalent decimal and percent
Answer:
decimal 0.25 percent 25
Step-by-step explanation:
Decimal -divide by 100%
Percent -multiply by 100
(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.
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.
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=
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
First person to answer will mark brainliest
Answer:
B is correct my guy. Hope this helps!
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
The line represented by the equation 3x + 5y = 2 has a slope of - Which shows the graph of
y
..5
5
5
4.
4
4
3+
2
3
2
3
2
+
1
..
2
5
-2-4
1 2 3 4
-3-2-4
-2-
3
-5-4-3-2-14+ 1434
-2
--3-
14
L5
م ر بنه + کا
O
O
Answer:
Step-by-step explanation:
Solve the given 3x + 5y = 2 for y. This will automatically indicate the slope of the line.
Subtracting 3x from both sides of this equation, we get:
5y = -3x = -3x + 2.
Dividing both sides by 5 yields y = (-3/5)x + 2/5.
The slope of the given line is -3/5. The y-intercept of this line is (0, 2/5).
Next time, please share the answer choicess. Thank you.
Write an equation in standard form passing through the points (-2, 0) and (-3, -1). I know the answer to the question, but I do not know how to solve this question to get to the answer. I will give the title to whoever gives the most understandable explanation to the question and answer. I will be glad to answer to help you give to create an explanation. Thank you and good luck.
Answer:
[tex]y - x = 2[/tex]
Step-by-step explanation:
Given
Points (-2,0) and (-3,-1)
Required
Equation of Line
The first step is to determine the slope of the line; using the following formula
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
[tex]Where\ (x_1,y_1) = (-2,0)\ and\ (x_2,y_2) = (-3,-1)[/tex]
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex] becomes
[tex]m = \frac{-1 -0}{-3 - (-2)}[/tex]
[tex]m = \frac{-1}{-3 +2}[/tex]
[tex]m = \frac{-1}{-1}[/tex]
[tex]m = 1[/tex]
The next is to determine the equation of the line using any of the points
The formula is as thus;
[tex]m = \frac{y - y_1}{x - x_1}\ or\ m = \frac{y - y_2}{x - x_2}[/tex]
Using [tex]m = \frac{y - y_1}{x - x_1}[/tex]
[tex]Where\ (x_1,y_1) = (-2,0)\ and\ m =1[/tex]
[tex]1 = \frac{y-0}{x - (-2)}[/tex]
[tex]1 = \frac{y-0}{x +2}[/tex]
[tex]1 = \frac{y}{x +2}[/tex]
Multiply both sides by x + 2
[tex](x+2)*1 = \frac{y}{x +2} * (x+2)[/tex]
[tex](x+2)*1 = y[/tex]
[tex]x+2 = y[/tex]
[tex]y = x + 2[/tex]
Subtract x from both sides
[tex]y - x = x - x +2[/tex]
[tex]y - x = 2[/tex]
Hence, the equation of the line in standard form is [tex]y - x = 2[/tex]
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)
Read more about Lens
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in the following triangle theta=60.Find the values of the angles of the angles B and B'
Answer:
A. B = 64.13° or B' = 115.87°
Step-by-step explanation:
The given angle is opposite the shortest of the given sides, so there are two possible solutions using the Law of Sines. Either way, we have ...
sin(B)/16 = sin(θ)/15.4
B = arcsin(16/15.4·sin(60°)) ≈ arcsin(0.899767)
B = 64.13° or B' = 180° -64.13° = 115.87°
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%
Here is a table of values for y = f(x).
х
0 5 10 15 20 25 30 35 40
f(x) 5 6 7
8
9
10 11
12 13
Mark the statements that are true.
O A. f(15) = 8
B. The domain for f(x) is the set (5, 6, 7, 8, 10, 11, 12, 13},
C. The range for f(x) is all real numbers.
D. f(5) = 6
Answer:
D
Step-by-step explanation: