Which point represents the value of -(-2) on the number line?
Point A
Point B
Point C
Point D
Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111
Here are the pairs matched with their products:
- (-5)(4.2) matches with -21
- (-7)(-3) matches with 21
- (2.5)(-9) matches with -22.5
Pairs (4) and (5) do not have corresponding products in the given options.
4/3x - 4 = 5 + x
Can you help me?
2+2/3 squared Times 63 divided by 9/2
Answer:
5.11111111111 is your answer
Step-by-step explanation:
2d 5f 2g 7 3g g combining liked terms
Answer:
2d + 5f + 6g + 7
Step-by-step explanation:
2g + 3g + g = 6g
The rest is the same
A cylindrical cake is made in a pan that has a diameter of 10
inches and a height of 2 inches. What is the total surface
area of the icing on the cake?
141.37 square inches
Answer:
about 141.4 square inches
Step-by-step explanation:
You want the area of icing on a cake that is 10 inches in diameter and 2 inches high.
IcingThe icing on a cake covers the lateral surface area and the area of the circular top. In terms of diameter, the sum of those areas is ...
icing area = πdh +(π/4)d² = πd(h +d/4)
icing area = π(10 in)(2 in + (10 in)/4) = π(10 in)(4.5 in)
icing area = 45π in² ≈ 141.4 in²
The area of icing on the cake is about 141.4 square inches.
__
Additional comment
If you use 3.14 for π, you get 141.3 square inches.
The attachment shows the "pi button" value. We have rounded to tenths, The full precision result is given so you can round to your checker's requirements.
<95141404393>
Andy and Nick went to the amusement park. They each bought a sandwich, and Nick got a small drink. Andy had a $10 gift certificate to put toward the cost, and Nick paid the rest, which came to $44.50. A ticket costs $20.00, and a sandwich costs $6.50. How much does a drink cost at the amusement park?
Answer:
$1.25
Step-by-step explanation:
To do this problem, you need to note that they bought two of almost everything. You are also working backwards at first to get how much they spent total and then taking away the expenses.
The first step is finding how much money they spent total, and you can do this by adding the gift certificate to the price:
44.5 + 10 = $55.50
Now, you see that they each bought a ticket for $20 EACH. There were two tickets (one for Andy, one for Nick). So multiply 20 by 2 and subtract that from your total cost.
$55.50 - (2 * $20) =
$55.50 - $40 =
$15.5
They bought a total of TWO sandwiches at 6.50 each. So repeat these steps, subtracting from the number above (underlined)
$15.50 - ($6.50 * 2) =
$15.50 - $13 =
$2.5
They bought two drinks that totaled to be $2.50.
To find the cost of ONE drink, divide this number by 2:
$2.50/2 =
$1.25
Answer:
A drink costs $1.5 at the amusement park
Step-by-step explanation:
44.50 + 10 = 54.5
2 people 1 ticket = $20 1 sandwich = $6.5
20 × 2 = 40
6.5 × 2 = 13
40 + 13 = 53
54.5 - 53 = 1.5
Which of the following inequalities is not true?
A. |−1|≥0
B. |−9|≠|9|
C. −7≤−5
D. −22<6 ( the 2 on the last on is an exponent)
Answer:
A
Step-by-step explanation:
a negative number can not be greater than 0
La densidad de un líquido es de 1.5 gr/cm3 su masa es de 7 libras Determina la cantidad de litros que ocupan dichos líquidos
Answer:
La cantidad de litros que ocupa dicho líquido es:
2,12 LitrosStep-by-step explanation:
El volumen de un líquido puede obtenerse al tener tanto su densidad como su masa usando la siguiente fórmula:
Densidad = masa / volumenAl despejar volumen se obtiene:
Volumen = masa / densidadPor lo cual, si se reemplazara la fórmula quedaría:
Volumen = 7 Lb / 1.5 gr/cm^3Sin embargo, para operar, las unidades en las que se expresa la masa deben coincidir con las unidades de la densidad, por lo cual vamos a convertir las libras en gramos teniendo en cuenta el siguiente factor de conversión:
1 libra = 453,592 gramos
Entonces:
7 lb = 453,592 gr * 7 = 3175,144 gr
Ahora este valor reemplaza la masa en la fórmula y calculamos:
Volumen del líquido = 3175,144 gr / 1.5 gr/cm^3Volumen del líquido = 2116,762667 cm^3 (He utilizado todos los decimales para obtener el resultado exacto).A simple vista ya se tiene el volumen del líquido en cuestión, sin embargo, el ejercicio pide que sea expresado en litros, por lo cual vamos a convertir los centímetros cúbicos en litros teniendo en cuenta el siguiente factor de conversión:
1 litro = 1000 centímetros cúbicos.
Ahora podemos aplicar una regla de tres simple, si:
1000 cm^3 = 1 L2116,762667 cm^3 = xY operamos:
x = (2116,762667 cm^3 * 1 L) / 1000 cm^3x = 2,116762667 LO si quieres un valor aproximado:
x = 2,12 Litros.Entonces, la cantidad de litros teniendo en cuenta la densidad y la masa brindadas es 2,12 litros.
Jan had $219 in her savings account she withdraws $6 a week to buy lunch. Assuming she does not deposit any more money. Write a linear function to represent how much money (y) jan will have after x weeks
Answer:
y = 219 -6x
Step-by-step explanation:
The money she will have remaining (y), will be the amount of money she started with subtracted by the amount of money spent each week multiplied by the number of weeks (x)
please help! please show work. will give brainleist!
Side lengths of 6cm and 9cm, 70° angle
pls picture
Answer:
See below (Picture #5)
Step-by-step explanation:
1. Draw a 6cm line
2. Draw the 9cm line by connecting the endpoints. When you draw the line, ensure the angle of both line segments is equal to 70 degrees.
3. Connect the 6cm and 9cm lines together(the length of the line doesn't matter)
4. Done
The lengths of the three sides of the triangle would be 6cm, 9cm and 12.4 cm respectively
The law of cosines can be stated as -
c = √(a² + b² + 2ab cos α)
Where {c} is the length of the third side of the triangle.
It is given that for a triangle, the side lengths are 6 cm, 9 cm and 70° is the angle between them. Using the law of cosines, we can write -
c = √(a² + b² + 2ab cos α)
c = √(6² + 9² + 2 x 54 x cos 70°)
c = √(36 + 81 + 108 x 0.34)
c = 12.4
Therefore, the lengths of the three sides of the triangle would be 6cm, 9cm and 12.4 cm respectively.
To solve more questions on law of cosines, visit the link below-
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I know this question is not about math or science but my friends are saying the Leonardo DiCaprio when he was young is hotter than Zac Efron now and when he was young. I need y’alls opinions.
Who is hotter, young Leonardo DiCaprio or 35 year old Zac Efron? My pick is Zac Efron but I want some opinions.
Answer:
it's Zac Efron for sure, Leonardo DiCaprio is just not the same...
A candy store called "Sugar" built a giant hollow sugar cube out of wood to hang above the entrance to their store. It took 13.5 m2 of material to build the cube.
What is the volume inside the giant sugar cube?
Give an exact answer (do not round).
since: base=height=width, the width also equalssince: base=height=width, the width also equalsAnswer:
\(\frac{27}{8} m^{3}\) or \(3.375m^{3}\)
Step-by-step explanation:
The formula for volume is Base * Height * Width; and the formula for area is Base * Height.
This problem mentions the structure is a cube and therefore it is assumed that every wall has the same area. Since there are 6 sides to a cube you divide the total amount of ft which make up this cube to know the area to each wall.
\(13.5m/6=\) 2.25 or \(\frac{9}{4}m\) per wall
With the area of each wall you can find the base and height:
base * height = area
\(b=\sqrt{\frac{9}{4} =\frac{3}{2} }\)
base = \(\frac{3}{2}\)m
height = \(\frac{3}{2}\)m
since base = height = width, the width also equals \(\frac{3}{2}\)m
volume = \((\frac{3}{2})^{3} = \frac{27}{8}\)
Please can someone help me on this!
1) Nicholas drove from Town P to Town Q. He took 2 hours to travel 3/5 of
the trip. He took another 1 hour to travel the remaining trip at an average
speed of 60 km/h. Find his average speed for the whole trip.
Please add the units at the end of the answer.
The average speed for the whole trip is required.
The average speed of the car is 100 km/h.
Let \(x\) be the total distance of the trip.
Distance traveled for 2nd half
\(60\times 1=60\ \text{km}\)
\(x-\dfrac{3}{5}x=60\\\Rightarrow \dfrac{1}{5}x=60\\\Rightarrow x=300\ \text{km}\)
Total time
\(t=2+1=3\ \text{hours}\)
Average speed is given by
\(v=\dfrac{300}{3}\\\Rightarrow v=100\ \text{km/h}\)
The average speed of the car is 100 km/h.
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so this is for khan academy and I would really like some help with it :)
y/x=2
Step-by-step explanation:
Because y=2 and x=4, we would do 4 divided by 2 (2/4=y/x) To get 2
36 3/6 divided by 36 1/2
Answer:
Step-by-step explanation:
We have the same 36 so just eliminate them and we are left with 3/6 multiple by 2 and we have the final answer which is 1
Answer:
(1)
Step-by-step explanation:
Hope this helped:)
Use the Midpoint Rule with \(n=5\) to estimate the volume obtained by rotating about the y-axis the region under the curve \(y=\sqrt{1+x^3}\), \(0\leq x\leq 1\).
To estimate the volume using the Midpoint Rule with \(\displaystyle n=5\), we need to divide the interval \(\displaystyle 0\leq x\leq 1\) into \(\displaystyle n\) subintervals of equal width. Since \(\displaystyle n=5\), each subinterval will have a width of \(\displaystyle \Delta x=\frac{1-0}{5}=\frac{1}{5}\).
Now, let's calculate the volume using the Midpoint Rule. The formula for the volume obtained by rotating about the y-axis is:
\(\displaystyle V\approx 2\pi \sum _{i=1}^{n}y_{i}\Delta x\)
where \(\displaystyle y_{i}\) represents the value of the function \(\displaystyle y=\sqrt{1+x^{3}}\) evaluated at the midpoint of each subinterval.
First, let's find the midpoints of the subintervals. Since the width of each subinterval is \(\displaystyle \Delta x=\frac{1}{5}\), the midpoint of the \(\displaystyle i\)-th subinterval is given by:
\(\displaystyle x_{i}=\frac{\Delta x}{2}+\left( i-\frac{1}{2}\right) \Delta x=\frac{1}{10}+\left( i-\frac{1}{2}\right) \frac{1}{5}\)
Substituting \(\displaystyle x_{i}\) into the function \(\displaystyle y=\sqrt{1+x^{3}}\), we obtain:
\(\displaystyle y_{i}=\sqrt{1+\left( \frac{1}{10}+\left( i-\frac{1}{2}\right) \frac{1}{5}\right) ^{3}}\)
Now, we can calculate the approximate volume using the Midpoint Rule:
\(\displaystyle V\approx 2\pi \sum _{i=1}^{5}y_{i}\Delta x\)
Substituting the values of \(\displaystyle y_{i}\) and \(\displaystyle \Delta x\) into the formula, we can evaluate the sum and compute the estimated volume.
\(\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}\)
♥️ \(\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)
Rosie buys her favorite hot chocolate from a hot chocolate shop. She pays $5.00 and gets a 20 oz. cup. What is the unit rate price per ounce for her hot chocolate?(1 point)
Answer:
4oz = 1$
Explain your answer:
Lin wants to get some custom t-shirts printed for her basketball team. If `10` or fewer shirts are ordered, each t-shirt costs `$10`. If `11` or more shirts are ordered, each cost `$9`.
1) Create a graph that shows the total cost of buying shirts, for `0` through `15` shirts.
2) There are `10` people on the team. Do they save money if they buy an extra shirt?
a) Yes
b) No
The volume of the cylinder is 62.83 cubic cm and the volume of. the cone is 20.94 cubic cm.
What is volume?In mathematics, volume is the space taken by an object. Volume is a measure of three-dimensional space. It is often quantified numerically using SI derived units or by various imperial or US customary units. The definition of length is interrelated with volume.
here, we have,
We know that,
It should be noted the to calculate the volume of a cylinder, we can use the formula V = πr²h, where r is the radius and h is the height. In this case, the height and radius of the cylinder and cone are the same.
For the cylinder:
Volume = π(2cm)²(5cm)
V = 20π
For the cone, we can use the formula
V = (1/3)πr²h:
V = (1/3)π(2cm)²(5cm)
V = 20/3π cubic cm (exact value)
Hence, to get an approximate decimal value, we can use a calculator to evaluate:
Volume of cylinder ≈ 62.83 cubic cm
Volume of cone ≈ 20.94 cubic cm
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Complete question:
A cylinder and cone have the same height and radius. The height of each is 5 cm, and the radius is 2 cm. Calculate the volume of the cylinder and the cone. Enter your answers as a whole number or fraction
Cylinder:
π cm3
Cone:
π cm3
Flag question: Question 2
Question 21 pts
The volume of this cone is cubic units.
A drawing of a cone.
What is the volume of a cylinder that has the same base area and the same height?
π
Flag question: Question 3
Question 31 pts
A cylinder has a diameter of 6 cm and a volume of cm3.
Sketch the cylinder.
Find its height and radius in centimeters.
Label your sketch with the cylinder's height and radius.
Radius:
cm Height:
cm
Flag question: Question 4
Question 41 pts
Lin wants to get some custom T-shirts printed for her basketball team. Shirts cost $10 each if you order 10 or fewer shirts and $9 each if you order 11 or more shirts.
1. Make a graph that shows the total cost of buying shirts, for 0 through 15 shirts.
2. There are 10 people on the team. Do they save money if they buy an extra shirt? Explain your reasoning.
No
3. What is the slope of the graph between 0 and 10? What does it mean in the story?
The slope is
5
which represents the
Shirts per $1
for the first 10 shirts
4. What is the slope of the graph between 11 and 15? What does it mean in the story?
The slope is
7
which represents the
Price per 1 shirt
for 10-15 shirts
Flag question: Question 5
Question 51 pts
In the following graphs, the horizontal axis represents time and the vertical axis represents distance from school. Match a possible story to each graph.
Group of answer choices
Left graph
A student leaves school and walks to a friend’s house that is halfway between school and their house. After spending some time at a friend’s house, the student continues walking home.
Center graph
An athlete leaves school to go home for a while, then returns to school for a game later in the evening.
Right graph
A parent starts from their workplace and drives directly to school to pick up their daughter.
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pls look at the image and answer quickly!
Answer:
6
Step-by-step explanation:
Please answer the following two-step equation and show all work
-2/3x + 20 = 30
Answer:
x= 0.06 or 1 over 15..the 1/5 only this thing wont let me do fractions
Step-by-step explanation:
PLEASE HELP!!!
Lee can type 1 1/3 pages every 15 minutes. How many hours does it take him to type 10 2/3 pages? Complete the rate table to solve the proportion.
pages---> 4/3=32/3
hours---> 1/4 = x
Lee can type 10 2/3 pages in _________ hours.
a. 1 3/4
b. 2
c. 2 1/4
d. 2 1/2
Answer:
First, we know that:
1 1/3 = 4/3
10 2/3 = 32/3
15 minutes = 0.25 hours
Let's imagine that x (hours) is the time it takes Lee to type 32/3 pages.
From the information, we can tell that:
Lee can type:
4/3 pages in 0.25 hours
32/4 pages in x hours
So x should be:
x = (32/4 . 0.25)/4/3 = 2 (hours)
So it takes Lee 2 hours ro type 10 2/3 pages
Step-by-step explanation:
the equation y=8.4x represents a proportional relationship.what is the constant of proportionality
Answer:
8.4 is the constant of proportionnality
Step-by-step explanation:
In the situation:
y = k×\(x\)
k is the constant of proportionality
Is ΔP'Q'R' a 270° rotation of ΔPQR about the origin explain
Answer: Yes because each point is the same distance from the orgin as the original triangle and it is in the forth quadrant while the original triangle is in the first.
Step-by-step explanation: I hope this helps :)
Plz Help me with this
x^2+18x+c
Answer:
81
Step-by-step explanation:
Select the number that makes the statement correct by filling in the blank:
"A percentage of an object is how many parts of it there are out of ___ equal parts."
A. 100
B. 70
C. 400
D. 2
Answer: 100
Step-by-step explanation: if you mean out of a percent it’s 100%, 100% = 1 whole
Answer:
100
Step-by-step explanation:
ANSWER FAST I DON'T UNDERSTAND?
Answer:
Step-by-step explanation:
I would ask my teacher for help if no, then it seems like you would mark a line in the numbers line or smth just giving you an idea sorry if this never helped :(
I need help with this question, I'm not very good at math and all help is appreciated!
Answer:
A
Step-by-step explanation:
We can solve for H by isolating it on one side of the equation, as follows:
J/H - I/H = G
Taking H as the common denominator:
(J - I)/H = G
Multiplying both sides by H:
J - I = GH
Adding I to both sides:
J = GH + I
Dividing both sides by G:
H = (J - I)/G
So the answer is
(A)
H = (J - I)/G.
Answer: A
Step-by-step explanation:
\(\frac{J}{H} = G + \frac{I}{H}\) >Since you are solving for H bring I/H to the other side
by subtracting I/H from both sides
\(\frac{J}{H}- \frac{I}{H} = G\) >There is a common denominator so you can
combine the fractions
\(\frac{J-I}{H} = G\) >Multiply both sides by H or cross multiply whichever
way your mind things about how to get H on top
\(J-I = G(H)\) >Divide both sides by G
\(\frac{J-I}{G} = H\) >Answer is A