An electrician charges $55 an hour for labor and an initial fee of $95. The total cost c equals 55 times the number of hours x plus 95. Enter an equation for the relationship and use the equation to complete the table.
Answer:
C = 55h + 95
Step-by-step explanation:
That is the equation, I can't see a table but I'm assuming you would be given hours worked, so plug that in for the h value and solve to get a cost in $.
For example, if he worked for 2 hours then
C = 55(2) + 95
C = 110 + 95
C = $205
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MATH MIDDLE SCHOOL ASAP due in 10 mins no explaining to do just answer thank you giving brainlist :)
Answer:
y-9=8
Step-by-step explanation:
What is the least common denominator of
7/9 and 17/18?
Answer:
18
Step-by-step explanation:
9 can be multiped by 2 to get to 18 :)
A store sells two cone-shaped funnels. What is the height of each funnel? Round your answer to the nearest tenth
(1 pt=28.875 in)
45 in
5 in
Volume 0.5 pint
Volume 1 pint
The height of the smaller funnel is about
inches.
The height of the larger funnel is about
inches.
Considering the volume of a cone, it is found that:
The height of the smaller funnel is about 2.72 inches.The height of the larger funnel is about 3.06 inches.What is the volume of a cone?
The volume of a cone of radius r and height h is given by:
[tex]V = \frac{\pi r^2h}{3}[/tex]
For cone 1, we have that V = 0.5 x 28.875 = 14.4375 in³ and r = 2.25 in(half the diameter), hence:
[tex]\frac{\pi (2.25)^2h}{3} = 14.4375[/tex]
[tex]h = \frac{14.4375 \times 3}{\pi \times (2.25)^2}[/tex]
[tex]h = 2.72[/tex]
For cone 2, we have that V = 28.875 in³ and r = 3 in, hence:
[tex]\frac{\pi (2.25)^2h}{3} = 28.875[/tex]
[tex]h = \frac{28.875 \times 3}{\pi \times (3)^2}[/tex]
[tex]h = 3.06[/tex]
More can be learned about the volume of a cone at https://brainly.com/question/14281550
Y=x-12, y=14 what is x I need someone to answer fast please
Answer:
x = 26
Step-by-step explanation:
If Y= x - 12 and Y = 14
Then we input the value of y which gets us the equation of: 14 = x - 12
Now we add 12 on both sides to isolate the variable.
We ADDED 12 because we needed a way to cross out the - 12 on the right side. Now the equation would be 14+12 = x
Easily we can find that 26=x
in the expansion of ( x^3 - 2/x^2 ) ^10 , find the coefficient of 1/x^5
Answer:
240
Step-by-step explanation:
We need to find the coeffeicent of the binomial expansion of
[tex]( {x}^{3} - 2 {x}^{ - 2} ) {}^{10} [/tex]
Note that
[tex] - 2 {x}^{ - 2} = - \frac{2}{ {x}^{2} } [/tex]
The binomial theorem states that
[tex](x + y) {}^{n} = x {}^{n} y {}^{0} + \binom{n}{1} x {}^{n - 1} y + \binom{n}{2} x {}^{n - 2} y {}^{2} ....... + x {}^{0} y {}^{n} ( \binom{n}{n} )[/tex]
Using this, we let expand our series
[tex]( {x}^{3} - 2 {x}^{ - 2} ) {}^{10} = x {}^{30} + \binom{10}{1} ( {x}^{27} 2 {x}^{ - 2} ) + \binom{10}{2} {x}^{24} 2x {}^{ - 4} + \binom{10}{3} {x}^{21} 2x {}^{ - 6} + \binom{10}{4} {x}^{18} 2x { }^{ - 8} + \binom{10}{5} x {}^{15} 2x {}^{ - 10} + \binom{10}{6} x {}^{12}2 x {}^{ - 12} + \binom{10}{7} x {}^{ 9} 2x {}^{ - 14} + \binom{10}{8} x {}^{ 6} 2x {}^{ - 16} + \binom{10}{9} ( {x}^{3} )2x {}^{ - 18} + 2x {}^{ - 20} [/tex]
[tex] \frac{1}{ {x}^{5} } = x {}^{ - 5} [/tex]
So what term in the series eqaul x^-5.
That term is the 10 choose 7 term.
[tex] \binom{10}{7} {x}^{9} 2x {}^{ - 14} [/tex]
Because
[tex] = \binom{10}{7} 2x {}^{ - 14} {x}^{9} = \binom{10}{7} 2 {x}^{ - 5} [/tex]
So we need to compute 10 choose 7.
That equals
10!/3!(7!)= 10×9×8/6= 720/6=120.
So we get
[tex]120(2) {x}^{ - 5} [/tex]
[tex]240 {x}^{ - 5} [/tex]
So the coeffceint u
is 240
answer the question with true or false:
Answer:
true
Step-by-step explanation:
Find the volume of the sphere. Round your answer to the nearest tenth.
Use 3.14 for it.
A sphere has a diameter of 3.8 centimeters.
The volume of the sphere is about
cm3
HELP ME PLSS I WILL MARK BRAINLIEST
Answer:
Step-by-step explanation:
Givens
pi = 3.14
d = 3.8
r = d/2
r = 3.8/2 = 1.9
Formula
V = (4/3) * pi * r^3
Solution
V = (4/3) * 3.14 * 1.9^3
V = 4/3 * 3.14 * 6.859
V = 28.7163
PLEASE READ THE PICTURE
Let g be a reflection in the x-axis, followed by a translation 4 units down of f(x). Write a rule for g described by the transformations of the graph of f. Please show work and I will mark Brainliest!
What is the general equation of a cosine function with an amplitude of 3, a period of 4 pi, and a horizontal shift of negative pi? y = 4 pi cosine (3 (x minus pi)) y = 3 cosine (4 pi (x pi)) y = 3 cosine (0.5 (x pi)) y = 4 pi cosine (0.2 (x pi))
The general equation of a cosine function with an amplitude of 3, a period of 4 π, and a horizontal shift of negative π is [tex]f(x) =3cos(0.5x+\pi )[/tex].
What is a function?A function is a rule that relates two variables.
The parent function is:
[tex]f(x)=cosx[/tex]
We know the period of the parent function is 2π and the amplitude is 1.
For an amplitude of 3, we need to multiply the parent function by 3.
So, the function with amplitude 3 will be given by:
[tex]f(x) =3cosx[/tex]
For a period of 4π, we need to make the argument of the parent function half.
So, [tex]f(x) = 3cos(0.5x)[/tex]
A horizontal shift of negative π means, f(x) will become f(x+π)
So, [tex]f(x) =3cos(0.5x+\pi )[/tex].
Therefore, the general equation of a cosine function with an amplitude of 3, a period of 4 π, and a horizontal shift of negative π is [tex]f(x) =3cos(0.5x+\pi )[/tex].
To get more about function visit:
https://brainly.com/question/17043948
Answer:
Option C. y + 3cos (0.5(x+ pi))
:)
can you please answer this, please show work
Answer:
6:8
Step-by-step explanation:
There are 6 squares and there are 8 triangles, just count them.
Answer:
3 : 4
Step-by-step explanation:
squares : triangles = 6 : 8 ( divide both parts by 2 )
= 3 : 4 ← in simplest form
What is the volume of a right circular cylinder with a radius of 4 m and a height of 4 m?
O 8 m
O 167 m
O 647 m
O 2567 m
Answer:
approximately V = 201 m^{3}
Step-by-step explanation:
Volume of a right circular is π[tex]r^{2} h[/tex]
R = radius of 4m
H = height of 4m
pi = approximatly 3.14
[tex]V = 3.14*4^{2}*4[/tex]
[tex]V = 3.14*16*4[/tex]
[tex]V = 3.14*64[/tex]
approximately [tex]V = 201 m^{3}[/tex]
Hope this helps :)
(If this was not the corrrect answer please give me more information)
50 points, PLEASE HELP
i have a test in 2 hours i really need to know how to do this problem
25g^2 - 15gh - 28h^2
Answer:
the answer is (5g+4h)(5g-7h)
Step-by-step explanation:
25g^2-15gh-28h^2
=(25g^2+20gh)+(-35gh-28h^2)
=5g(5g+4h)-7h(5g+4h)
=(5g+4h)(5g-7h)
Solve the system of equations using the elimination method.
8x + y = -16
3x - y = 5
Answer:
X=-1
Y=-8
Step-by-step explanation:
8x+y=-16
3x-y=5
11x=-11
x=-1
8x+y=-16
8(-1)+y=-16
-8+y=-16
y=-16+8
y=-8
Or3x-y=5
3(-1)-y=5
-3-y=5
-y=5+3
-y=8
y=-8
Can anyone solve this?
Answer:
54 cubic inches
Step-by-step explanation:
Just as the area of a triangle is half the area of a rectangle with the same dimensions, the volume of a triangular prism is half the volume of a rectangular prism with the same dimensions:
V = 1/2(LWH)
V = (1/2)(9 in)(4 in)(3 in) = 54 in³
The volume of Phil's block of cheese is 54 in³.
the quotient of m and 7
the quotient of m and 7 = m/7
Write y – 3 = (x – 6) in standard form.
Answer:
x-y=3
Step-by-step explanation:
Answer:
[tex]x - y = 3[/tex]
is
[tex]y - 3 = (x - 6)[/tex]
in standard form
A quantity with an initial value of 200 grows continuously at a rate of 4% per second.
What is the value of the quantity after 1.55 minutes, to the nearest hundredth?
The growth of the quantity is an illustration of an exponential function
The value of the quantity after 1.55 minutes is 76759.22
How to determine the amount of the quantity?The given parameters are:
Initial value, a = 2000
Rate, r = 4%
An exponential growth function is represented as:
y = a(1 + r)^x
Substitute the value in the equation
y = 2000(1 + 4%)^x
After 1.55 minuted, x = 1.55 * 60
So, we have:
y = 2000(1 + 4%)^(1.55 * 60)
Evaluate the expression
y = 76759.22
Hence, the value of the quantity after 1.55 minutes is 76759.22
Read more about exponential functions at:
brainly.com/question/24077767
Answer:
Step-by-step explanation:
9398.61
Solve each pair of simulation equation.Giving both solutions. Multiply both equations by suitable numbers before adding/subtracting to elimination..
A) 6x-7y=9
3x+2y=54
B) 4x -5y =12
2x -3y =8
C)4x -2y=28
3x +3y=12
D)2x +5y =14
13x-11y=-83
Answer:
Step-by-step explanation:
I haven't got time to do all these by I'll give you the method in each case.
You have to make the x or y term equal (or 1 term + and other -) in both equations before adding or subtracting.
A . Multiply equation 2 by 2 and subtract (to eliminate x)
- don't forget to multiply EACH TERM by 2.
B. Multiply equation 2 by -2 and add.
C. Multiply equation 1 by 3 and equation 2 by 2 ( this will give -6y and +6y in the resulting equations ) so you then add to eliminate y.
D. Multiply equation 1 by 13 and equation and equation 2 by 2 to eliminate x then add.
Answer number 8 please. Thank you.
Answer:
The answer is C. A triangle has a total angle of 180°, therefore C. is more than 180°
amount of money that is equal to 2 quarters.
1. 5 dimes
2 5 dimes 1 nickel
3.4 dimes
5.4 dimes 1 nickle
Answer:
1. 5 dimes
Step-by-step explanation:
5 dimes
Two quarters is $0.50.
1. 5 dimes = 5 * $0.10 = $0.50
2. 5 dimes + 1 nickel = 5 * $0.10 + $0.05 = $0.55
3. 4 dimes = 4 * $0.10 = $0.40
5. 4 dimes + 1 nickel = 4 * $0.10 + $0.05 = $0.45
The only amount of money that's equal to $0.50 is 1. 5 dimes
URGENT!
7. At what rate was an investment made that obtains $359.80 in interest compounded annually on $668 over five years?
[compound interest rate]
Answer:
Rate = 13.173% per year
Step-by-step explanation:
**Not 100% sure about this answer, but I think it's right.**
Calculation Steps:
Solving for rate r as a decimal
r = n[(A/P)^1/^nt - 1]
r = 1 × [(668.00/359.80)^1/^(1)^(5) - 1]
r = 0.131731
Then convert r to R as a percentage
R = r * 100
R = 0.131731 * 100
R = 13.173%/year
Does anyone know the answer to this ?? PLEASE HELP.
No links please, don’t answer if you don’t know it :,)
Answer:
2,365,200,000 times
Step-by-step explanation:
Given :
Average heartbeat rate = 60 times/minuteAvg. human lifespan = 75 yearsTo Find :
Number of heartbeats in lifetime of 75 yearsSolving :
Let the number we require be nn = average heartbeat rate x 60 x 24 x 365 x 75n = 60 x 60 x 24 x 365 x 75n = 3600 x 24 x 365 x 75n = 86400 x 365 x 75n = 31536000 x 75n = 2,365,200,000 timesAndy, Brenda, Carla, and Diego put their names in a hat and pull out two names.
If A represents Andy, B represents Brenda, C represents Carla, and D represents
Diego, what are all the different pairs of names they can pull out?
Answer:
A and B
A and C
A and D
B and C
B and D
C and D
Giovanni drops a rock from the Leaning Tower of Pisa in Italy. The height in feet (h) of the falling rock above the ground is
given by the following equation, where t represents the time, in seconds.
h = -16t2 + 186
Approximately how long will it take the rock to reach the ground?
It would take about 3.4 seconds for the rocks to reach the ground.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Let h represent the height of the rock above the ground after t seconds. Given the equation:
h = -16t² + 186
The rock would reach the ground at h = 0, hence:
0 = -16t² + 186
16t² = 186
t = 3.4 seconds
It would take about 3.4 seconds for the rocks to reach the ground.
Find out more on equation at: https://brainly.com/question/2972832
Please help like right now
Answer:
hope this helps :)
Step-by-step explanation:
The number of visitors p to a website in a given week over 1-year period is given by p(t)=119+(t-83)e^0.02t , where t is the week and t is greater than or equal 1 and less then or equal 52.a)over what interval of time during the 1-year period is the number of visitors decreasing?b)over what interval of time during the 1-year period is the number of visitors increasing?c)find the critical point, and interpret its meaning.
The function p(t) for the number of visitors over 1-year is an exponential function
The increasing interval is: [33,52]The decreasing interval is: [0, 33]There is no critical pointThe increasing and the decreasing intervalThe function is given as:
p(t) = 119 + (t-83)e^0.02t
Start by plotting the graph of the function p(t).
From the graph (see attachment), we have the parameters to be:
Increasing: [33,52]Decreasing: [0, 33]Critical point = NoneHence, the function has no critical point
Read mroe about critical points at:
https://brainly.com/question/7805334
50(17 + 5)
15(25 – 4)
40(39 + 14)
10(5 + 12)
22(14 – 3)
Answer:
Step-by-step explanation:
1)1100=50x22
2)315=15x21
3)2120=40x53
4)170=10x17
5)242=22x11
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show your work please :(
Answer:
you cant see the picture
Step-by-step explanation:
Matt says that 5 - 1 1/4 will be more than 4, since 5 1 is 4. Draw a picture to prove that Matt is wrong.
Answer:
Step-by-step explanation:
Start by drawing five rectangles. Divide each of the five into four parts. You should have 20 sections. 1 1/4 is equal to 5/4, or five 1/4 pieces. Shade or erase five of the 20 sections. There should be 15 left. 15/4 is 3.75, or 3 3/4, which is less than four.
Hope this helps!