Can someone please help me
Answer:
474.93
Step-by-step explanation:
V= 3.14*r^2*h
Find the equation (in terms of
x
) of the line through the points (-1,0) and (4,5)
la pregunta en la imagen
Answer:
216mx meters
Step-by-step explanation:
m is in minutes so convert it in hours = 60m hrs
Speed is in metres per second, convert it in kilometers per hour= 18x/5
Now we’ve time and speed, put it in the formula
Distance = speed x time
= 18x/5 x 60m
= 216mx meters
Hope it helps
Find all solutions to x^3+3x^2–19x+3=0
Answer:
x = 3
x = -3 + √ 10
x = -3 - √ 10
Step-by-step explanation:
I used a calculator
** I'm not sure if the x's are multiplication symbols or they're variables. (I'm assuming they're variables).
If it's wrong, I'm sorry!!
Six less than twice a number x is four
Answer:
2 x − 6
Explanation:
"Six less than.." means "Subtract 6 from".
Do not confuse this with "Six less..." which means "Subtract from 6".
Confusing, I know.
We know that "Double a number" means
2 x , where x is your mystery number.
Therefore, we have:
2 x − 6 , which translates to "6 less than 2x" or "6 less than twice a number"
Find KJM
I NEED HELP
Answer:
Angle kjm is 56 °
you equate 7x with 3x +16
ie
3x + 16 = 7x
The position-to-term rule in a sequence is 'multiply by 4 then add 3'. What is the 5th term?
Answer:
Fifth term = 23
Step-by-step explanation:
The position to term is 'multiply by 4 then add 3'.
The formula can be :
[tex]a_n=(4n+3)[/tex]
We need to find the 5th term.
Put n = 5 in the above formula.
[tex]a_5=(4\times 5+3)\\\\=20+3\\\\=23[/tex]
So, the 5th term of the given sequence is 23.
Kareem is a salesman at Best Buy. On each sale, he earns a commission of 12%. One of his customers bought a TV for $550 and a video game for $65. How much did Robert earn in commissions from these sales?
Answer:
He made $51.25
Step-by-step explanation:
550+65=615
12% of 615 is 51.25 so your answer is 51.25
Where do I put one set of parentheses in this equation?
Answer:
You could put a set of parentheses around [tex]8^{2}[/tex] ÷ [tex]4[/tex]
Step-by-step explanation:
Division or multiplication (depending on which one is in the equation. In our case, it's division) always has to be solved first.Therefore, you would put your parentheses around [tex]8^{2}[/tex] ÷ [tex]4[/tex]I hope this helps!
The floor plan at right shows a two-bedroom apartment. The owner apartment is replacing some of the flooring in the apartment. He plans on installing new carpet in the two bedrooms and living room. The kitchen and bath have tile floors, but he is not replacing the tile. What is the area in square feet that will have new carpet?
A. 322 square feet
B. 192 square feet
C. 368 square feet
D. 690 square feet
Answer:
192 square feet
Answer:
368
Step-by-step explanation:
I NEED THIS TODAY PLEASE
To play a board game, a player
spins the pointer of a spinner with
four equal sections numbered 1-4,
and then flips a fair coin. Use a tree
diagram to represent the sample
space. What is the probability of
spinning either a 3 or a 4 AND flipping
a head?
Answer:
15%
Step-by-step explanation: maybe
A spinner is divided into 10 congruent sections. Each section is labeled with a number as shown. The spinner will be spun one time.
What is the probability that the arrow will land in a section that is labeled with a number that is a multiple of 2
Answer: 1/2 i think
Step-by-step explanation:
Violet answered 166 questions correctly on her multiple choice science final that had
a total of 200 problems. What percentage of questions did Violet answer correctly?
Answer:
83%
Step-by-step explanation:
No. of questions answered correctly = 166
Total no. of questions = 200
Percentage of questions answered correctly = (166/200)*100 = 83%
Diego bought a bicycle that cost $180. In addition he had to pay 8% sales tax on it.
What was the amount of sales tax Diego paid?
Answer:
$14.40
Step-by-step explanation:
$180 * 8% ( Or 0.08 )
If you pay $7 for 3 tickets how much would 24 tickets cost?
Answer:
24 tickets would cost about $55.92
Step-by-step explanation:
To solve this equation I decided to figure out how much one ticket cost. I divided 7 by 3 and got 2.333333 I rounded that to one ticket costing $2.33. I then multiplied 2.33 by 24. 24 x 2.33= 55.92.
The reason I multiplied 24 by 2.33 is because the cost of one ticket is $2.33 so if I wanted to buy 24 tickets, I would have to multiply in order to find out the total cost.
I hope that this answer helped :D
Answer:
24 tickets would cost $56
Step-by-step explanation:
You would Convert it to a decimal by dividing the numerator by the denominator. 7/3*24=$56
3 tickets cost=$7
1 ticket cost= 7/3=$7/3
Without multiplying circle whether each product is greater than, less than, Equal to the whole number
Step-by-step explanation:
4 × (1/7) Less Than12 × 2(5/6) Greater ThanThe Rule: If you are multiplying by a value less than one, your product will decrease. If you are multiplying by 1, the product will be equal and if you are multiplying by a value greater than 1, the product will increase.
Find the length of diagonal AV in a three-dimensional figure.
Answer:
C. 13
Step-by-step explanation:
Apply pythagorean theorem.
Thus:
Diagonal AV = √(12² + 5²)
AV = √(144 + 25)
AV = √169
AV = 13 cm
Factor the polynomial y^5+32
Step-by-step explanation:
Please refer to the attachment
I NEED ASAP DUE IN 20 MINS
Answer:
y = 45 / 2x + 50
Step-by-step explanation:
The best equation for the line of the best fit would be y = 45 / 2x + 50.
The slope would be 45 / 2 and the y-intercept would be ( 0 , 50 ).
I used the points, ( 0 , 50 ) and ( 4 , 140 ) to get the equation, slope, and the y-intercept.
I used those points because they were the most accurate ones that I know for now.
Also, remember the formula is, "y = mx + b."
Find my interest if I invest $450 at 8% for 3 years compounded semi-annually.
Answer:
The final balance is $571.61.
The total compound interest is $121.61.
Step-by-step explanation:
hope this helps!
It takes a bear 9 more days to eat a barrel of honey alone than it takes the bear and a second bear to eat the barrel of honey together. It takes the first bear 7 fewer days to eat a barrel of honey alone than it takes the second bear to eat a barrel of honey alone. In how many days can the two bears eat a barrel of honey together?
Answer:
it takes the bears 12 days to eat honey together.
Step-by-step explanation:
1/x+9+1/x+16=1/x
(solve this using cross multiplication)
= x^2 = 144
x=12
The number of days that it takes for both of the considered bears to eat a barrel of honey together is 12 days.
How are number of people to time needed to complete a task related?More people to do a task means less time it will take.
Less people to do a task means more time it will take.
Thus, they are inversely related.
We can define a constant as "Manpower" needed for doing that specific work.
Each worker has his/her own strength. That strength is applied per unit of time.
Let we define:
Manpower needed for a work = time taken for that work × strength used for that work per unit of time
(we used multiplication as it represents linear use of strength to finish the task, so using that strength for a finite units of time means you stacked up your strengths that many times to finish that work)
Here, we have:
Instead of people, here we consider bears.Work in consideration = eating honey out of a considered barrel (assuming all barrels considered will have same amount of honey)Assume that:
Strength of first bear (call it bear A) for eating honey = S per day (as unit of time is a day here).Strength of second bear (call it bear B) for eating honey = T per dayManpower the work needs be M (assume)Time needed by bear A to complete the work = 'x' daysTime needed by bear B to complete the work = 'y' days.Then, we get:
Manpower needed for a work = time taken for that work × strength used for that work per unit of time
[tex]M = x \times S\\M = y \times T[/tex]
If bear A and bear B both do the work together, then their strenghts will add up.
That means, the combined strength would be S + T per day
The manpower the work needs is still M, therefore, the time needed is:
[tex]M = \text{Time needed} \times (S + T)\\\\\text{Time needed} = \dfrac{M}{S+T}[/tex]
This is the time needed for both bears to do the work together.
Also, it is given that:
It takes a bear 9 more days to eat a barrel of honey alone than it takes the bear and a second bear to eat the barrel of honey together.
or
Time needed by bear A to do work = 9 + time needed by both bears to do the work
or
[tex]x = 9 + \dfrac{M}{S + T}[/tex]
Also, it is given that:
It takes the first bear 7 fewer days to eat a barrel of honey alone than it takes the second bear to eat a barrel of honey alone.
or
Time taken by bear A to do the work = Time taken by bear B for that work - 7 days
or
[tex]x = y - 7[/tex]
Thus, we got these equations:
[tex]M = S \times x\\M = T \times y\\\\x = \dfrac{M}{S + T} +9\\\\x = y - 7[/tex]
call them first, second, third and fourth equation as per their ordering.
From the first and second equation, we get:
[tex]S = \dfrac{M}{x}\\\\T = \dfrac{M}{y}[/tex]
Putting these values in the third equation, we get:
[tex]x = \dfrac{M}{M/x + M/y} + 9\\\\\\x = \dfrac{xy}{x+y} + 9\\\\(x-9)(x+y) = xy\\x^2 -9x -9y + xy = xy\\x^2 -9x = 9y[/tex]
From the fourth equation, we know that:
[tex]x = y - 7[/tex]
or [tex]y = x +7[/tex]
Putting this value of y in the equation [tex]x^2 -9x = 9y[/tex], we get:
[tex]x^2 -9x = 9(x+7)\\x^2 -9x = 9x + 63\\x^2 -18x -63 =0\\\\x^2 -21x + 3x -63 = 0\\x(x-21) + 3(x - 21) = 0\\(x+3)(x-21) = 0\\(x+3) = 0, (x-21) = 0\\x = -3, x = 21[/tex]
'x' represents time in number of days. So it cannot be negative.
Thus, the value of x obtained is 21.
Also, we need: Time needed for both the bears to do the work together.
This time is the value of [tex]\dfrac{M}{S+T}[/tex], which is equal to [tex]x - 9[/tex] days (from the third equation)
Thus, the time needed for both the bears to do the work together = [tex]x-9 = 21-9 = 12 \; \rm days[/tex]
Thus, the number of days that it takes for both of the considered bears to eat a barrel of honey together is 12 days.
Learn more about work and time here:
https://brainly.com/question/1063042
#SPJ2
A slope field produces...
A. the graph of the general solution to the differential equation
B. the graph of the derivatives of the differential equation
Please explain. I am so confused on this.
It's A. B doesn't really make sense ("derivative of the differential equation" is somewhat nonsensical, "derivative of an equation" is not meaningful).
More to the point: Slope fields are used to visualize solutions to differential equations of the form
y' = f(x, y)
You take some point (x, y) and evaluate y' at the point. This gives the slope of the line tangent to the particular solution to the DE that passes through the point (x, y ).
Sample several points and evaluate y' at those points and you get several different slopes.
Simple example:
y' = x ² - y ² = (x + y ) (x - y )
Let's take the points (1, 1), (-1, 0), and (2, -2), at which we get slopes
y' = f (1, 1) = 0
y' = f (-1, 0) = 1
y' = f (2, -2) = 0
From here, you can get particular solutions that pass through a certain point by interpolating the slopes of the tangents to the solution. I've attached a slope field for the example here at the points listed above. (In the order red, green, black). Each light gray arrow in the background shows the slope of the tangent line.
If you're still unsure how the slope field is generated, I suggest looking up videos on the subject. The process is a bit difficult to describe without a dynamic visual aid.
HELP PLEASE I WILL BE SO GRATEFUL FOR YOU
Answer:
Step-by-step explanation:
A: Transitive
B: Also transitive
C: Reflexive
D: Addition Property of Equality
Hope it helped! There are resources online that you can use to see all of the theorems for geometry.
Calculate the volume of this cone.
Give your answer to 1 decimal place.
11 cm height
6 cm across
Answer:
6m
Step-by-step explanation:
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The Richardson family is out to dinner at their favorite restaurant. The bill comes to $28.85 How much money should they leave for the bill and a 20% tip? Please explain step by step
Point NN is located at (-2,-6)(−2,−6) on the coordinate plane. Point NN is reflected over the yy-axis to create point N'N ′ . Point N'N ′ is then reflected over the xx-axis to create point N''N ′′ . What ordered pair describes the location of N''?N ′′ ?
Given:
Coordinates of point N = (-2,-6)
Point N is reflected over the y-axis to create point N ′.
Point N' is then reflected over the x-axis to create point N''.
To find:
The ordered pair that describes the location of N''.
Solution:
The coordinates of point N are (-2,-6). Point N is reflected over the y-axis to create point N ′.
[tex](x,y)\to (-x,y)[/tex]
[tex]N(-2,-6)\to N'(2,-6)[/tex]
Point N' is then reflected over the x-axis to create point N''.
[tex](x,y)\to (x,-y)[/tex]
[tex]N'(2,-6)\to N''(2,6)[/tex]
Therefore, the ordered pair for point N'' is (2,6).
Answer:
(-6,2)
Notice that the xx-coordinate and the yy-coordinate change sign when LL is reflected over the xx-axis and then reflected over the yy-axis.
Write the equation of the line, in slope intercept form, that goes through the points (6,4) and (-3,-5)
Answer:
y = x - 2
Step-by-step explanation:
Find the slope using rise over run
(y2 - y1) / (x2 - x1)
Plug in the points:
(y2 - y1) / (x2 - x1)
(-5 - 4) / (-3 - 6)
-9 / -9
= 1
Using y = mx + b, plug in the slope and a point to solve for b:
y = mx + b
4 = 1(6) + b
4 = 6 + b
-2 = b
Plug in the slope and b to y = mx + b
y = 1x - 2
y = x - 2
So, the equation of the line is y = x - 2
what is 1+1
I NEED HELP
Answer:
2
Step-by-step explanation:
1+1
2
This question is so hard
Any number times one equals itself, and any number multiplied by two equals itself plus itself, so 1*2=2 and 1*2=1+1. The transitive property of equality states that if x=y and y=z then x=z. Since both 1+1 and 2 are equal to 1*2, they must be equal to each other, so 1+1=2.
The answer is 2
Randy has
53
53 inches of ribbon that he cuts into
8
8 pieces of equal length. What is the length of each piece of ribbon, in inches? Must be in fraction form.
Can someone please solve this using quadratic formula
2x^2 -7x -15=0
Step-by-step explanation:
a=2
b=-7
c=-15
-(-7)+-sq root (-7)²-4(2)(-15) / 2(2)
7 +- sq root 169 / 4
7+- 13 / 4
7+13 / 4, 7-13 / 4
x=5 x=-3/2