Answer:
Total surface Area(A) = 2pi*r(r+h)
Diameter D= 2r
r=0.66/2=0.33cm
A=3.41946
3.41946=2*3.143*0.33(0.33+h)
3.41946=2.0744(0.33+h)
3.41946/2.0744=(0.33+h)
1.6484=0.33+h
1.6484-0.33=h
h=1.3184cm
Step-by-step explanation: Total surface area is different from area around the cylinder.
A salesperson at a jewelry store earns 9% commission each week. Last week, Heidi sold $640 worth of jewelry. How much did she make in commission? How much did the jewelry store make from her sales?
Answer:19.2
Step-by-step explanation:
Anthony downloaded 8 total items onto his phone. The games he purchased were $2.00 each and songs were $1.00. How many of each did he buy after spending $11.00?
Simplify 2(x + 6) - 8
Answer:
2x+4
Step-by-step explanation:
please give me a brainliest!!
Answer:
2x + 4
Step-by-step explanation:
2(x + 6) - 8
Distribute
2(x) = 2x
2(6) = 12
2x + 12 - 8
Subtract 12 - 8
12 - 8 = 4
So 2x + 3 is your final answer.
Simplify (4x-1)+(-6x+3)
Answer:
2x-4
Step-by-step explanation:
Combine like terms to get your awnser
Step-by-step explanation:
Ur wlcm!
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What is the volume of the rectangular prism? Type the answer in the boxes below. Icm cm?
Answer:
3 3/4 cm ^3
Step-by-step explanation:
The length is 2.5 the width is 1 and the height is 1.5 so 2.5x1x1.5
Hope it helps!
HELP PLEASE I ONLY HAVE 10 MINUTES LEFT I WILL MARK BRAINLIEST ANSWER
Which equation results from adding the equations in this system?
11x-3y=-17
-4x+3y=-18
A -7x= -35
B -7x= 35
C 7x= -35
D 7x= 35
adding 11x and -4x makes it 7x
adding-3y and 3y cancels it out so your left with nothing
adding a negative and a negative keeps it a negative so its 18+17 making it -35
so the answer is C
For each graph below, state whether it represents a function.
Answer:
Graph 1, 2, 5, 6 are not functions.
Graph 3, 4 are functions
Step-by-step explanation:
For every input there can only be one output to be a function.
Of the given graphs, only graph[3] and graph[4] represent functions.
What is a function?
A function is a relation between a independent variable and a dependent variable such that the value of dependent variable depends upon the independent one. It is denoted by f(x).
Given are the graphs plotted for different expressions.
Now, for a given expression to be a function, it should have a single unique value of variable [y] in coordination with that of [x]. Of all the graphs given, only the continuous graph[3] and discrete graph[4] have unique or only one unique value of [y] for a value of [x]. So, only graph[3] and graph[4] represent functions.
Therefore, of the given graphs, only graph[3] and graph[4] represent functions.
To solve more questions on functions, visit the link below-
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Expand and simplify:
4(2x + 1) + 2(2x - 1)
Answer:
12x + 2
Step-by-step explanation:
4 ( 2x + 1 ) ⇔ 8x + 4
2 ( 2x - 1 ) ⇔ 4x - 2
8x + 4 + 4x - 2 = 12x + 2
conclude the data below:
(Harvard is the top one)
( Cornell is the lowest one)
select all that apply.
a. Harvard has a smaller IQ when compared with Cornell.
b. should choose Harvard cuz earn more than Cornell.
c. should choose Cornell cuz it’s higher.
d. a higher percent from Cornell earn more.
e. harvard has the higher range.
Answer:
b and e I think. would be helpful to have more info
Step-by-step explanation:
Daniel began filling an empty swimming pool at 8:30 a.M. After 5 hours, the pool contained 230 gallons of water. If the water input contained at a constant rate, how many more hours are needed to completely fill the 920-gallon pooo?
It will take 20 hours to fill the 920-gallon water in the pool if Daniel began filling an empty swimming pool at 8:30 a.M. After 5 hours, the pool contained 230 gallons of water.
What is a fraction?Fraction number consists of two parts one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
We have:
After 5 hours the pool filled with 230 gallons
Let's suppose that after x hours the pool will fill with 920 gallons
After x hours the pool filled with 920 gallons.
As the water input contained at a constant rate
So the value of x can be evaluated:
[tex]\rm x = \frac{920\times5}{230}[/tex]
x = 20 hours
Thus, it will take 20 hours to fill the 920-gallon water in the pool if Daniel began filling an empty swimming pool at 8:30 a.M. After 5 hours, the pool contained 230 gallons of water.
Learn more about the fraction here:
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can someone help pleaseee its due soon
Answer:
10
Step-by-step explanation:
Marie works in a garment factory that makes shirts. Marie’s job is sewing in sleeves. Marie receives .55 for each pair of sleeves she completes. During this pay period, she completed 1, 632 pairs of sleeves. What were Marie’s gross earnings?
Answer:
879.6
Step-by-step explanation:
I had a similar question that I solved which helped me here.
How can a trend line be used to make a predictions?
Answer:
When a linear association is shown by a scatter plot, we can use a line to model the relationship between the variables. A trend line is a straight line that comes closest to the points on a scatter plot. We can use the trend line to make predictions.
Step-by-step explanation:
Answer:
A trend line can be used to make predictions because it shows the direction of interest. If the trend was how many people used yt in 2020, the trend line would be positive and it shows that more people are interested in yt. This would make the people who work at yt want to make it better, and people at other companies want to try and do something like yt, or something better.
=
Solving a word problem with two unknowns using a linear...
A washer and a dryer cost $801 combined. The washer costs $51 more than the dryer. What is the cost of the dryer?
Linear or nonlinear
Answer:
Linear
Step-by-step explanation:
Linear is a straight graph
Answer:
Linear
Step-by-step explanation:
The easiest way to recognize this from a graph is that its a straight line. If not then its non linear. If you aren't given a graph to go off of another way is to see if it has a constant rate of change, if it does its linear.
OMG PLEASE HELP I WANT TO PLAY IN THE SNOW!!!
Cooper drove his car for 2 1/2 hours at a constant speed of 60 miles per hour and then for another 30 minutes at a constant speed of 40 miles per hour. How far did Cooper drive?
180 miles
160 miles
100 miles
170 miles
Answer:
Step-by-step explanation:
for 2 1/2 h at the speed of 60 miles/h
60+60+30=150 miles
for 30 min he drove 20 miles
150+20=170 miles
Yo ill give 40 points to whoever answers this
(2,8)
(4,2,)
(6,-4)
(9,-13)
Find the slope.
Answer:
-3
Step-by-step explanation:
The slope can be defined as the change in y over the change in x
we can break this down even more by doing the y of the second point minus the y of the first point over x of the second point minus the y of the first point
so [tex]\frac{2-8}{4-2}[/tex] = [tex]\frac{-6}{2}[/tex] = -3 so the slope is -3
we can check this by graphing it and we will see that we get y= -3x+14 for an equation that runs through all the points.
Which table represents a linear function?
Answer:
the second one
Step-by-step explanation:
The table that represents a linear function is the first one, where the values of y are obtained by multiplying the corresponding values of x by a constant factor of 5.
The first table:
x: 1,2,3,4,5
y: 5,20,45,80,125
In this table, the values of y are obtained by multiplying the corresponding values of x by a constant factor of 5.
The relationship between x and y is consistent and can be expressed by the equation y = 5x, which is a linear function.
The second table:
x: 1,2,3,4,5
y: 5,25,125,625,3125
In this table, the values of y are obtained by raising the corresponding values of x to increasing powers of 5.
The relationship between x and y is not consistent and cannot be expressed by a linear function.
Learn more about the Linear functions here:
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Nina is selling three types of energy bars at a market stall. She bought 50 Enerbars at 30p per bar and 150 Grainbars at 50p per bar from her normal supplier. She was also given 50 Amazebars as a promotion from a new supplier. Nina sells the bars for £2.20 and manages to sell all the Enerbars and Grainbars but only some Amazebars. She makes a profit of £402.80. How many Amazebars did she sell?
Answer:
24
Step-by-step explanation:
Given that:
Cost of each Enerbar = 30p
Number of Enerbars = 50
Cost of each grain bar = 50p
Number of grain bars = 150
Number of Amazebars = 50
Cost of each Amazebar = 0p (Because it was given as promotion)
Sales price of each bar = £2.20
Total profit earned = £402.80
All other bars were sold but Amazebars.
To find:
How many Amazebars were sold?
Solution:
First of all, let us have a look at the profit earned by selling each type of bar.
Profit is nothing but the difference between sales price and cost price.
Profit at selling each Enerbar = £2.20 - 30p = £1.90
Profit at selling 50 Enerbars = £1.90 [tex]\times[/tex] 50 = £95
Profit at selling each grain bar = £2.20 - 50p = £1.70
Profit at selling 50 grain bars = £1.70 [tex]\times[/tex] 150 = £255
Profit by selling Enerbars and grain bars = £95 + £255 = £350
Profit by Amazebars = £402.80 - £350 = £52.8
Number of Amazebars sold = Profit by Amazebars divided by Profit by selling one Amazebar
[tex]\Rightarrow \dfrac{\£52.80}{\£2.2}\\\Rightarrow \bold{24}[/tex]
Use a graphing calculator or other technology to answer the question.
Which quadratic regression equation best fits the data set?
yˆ=1.87x2+5.16x+10.54
yˆ=1.87x2+5.16x
yˆ=1.87x2−5.16x+10.54
yˆ=−1.87x2+5.16x
x y
1 5.9
2 8.9
3 13.4
4 20.1
5 30.1
6 45.1
7 67.7
9514 1404 393
Answer:
(c) y = 1.87x^2 -5.16x +10.54
Step-by-step explanation:
The attached graphing calculator output shows the best choice is the third one.
__
Additional comment
The best fit is offered by a function of degree about 3.7. Even a cubic offers much better fit than this quadratic.
Answer:
yˆ=1.87x^2−5.16x+10.54 is correct for all future users
Step-by-step explanation:
7x-3x=
what is x =
x=
Answer:
4x
Step-by-step explanation:
An atom of a certain element has 37 protons, 37 electrons, and a mass number of 85. How many neutrons are
in this atom?
Answer:
There will be 48 neutrons.
Step-by-step explanation:
Hope this helps and have a great day :)
There will be 48 neutrons in this atom.
What is mass number?The mass number of an element is the number obtained when the number of protons and neutrons in the nucleus of an atom of the element are summed together.
The addition of protons and neutrons in the nucleus of an atom is collectively known as the nucleon. Thus, the mass number of an atom can also be referred to as the nucleon of the atom.
This can be mathematically expressed as follows;
Mass number = number of protons + number of neutrons.
We are given that atom of a certain element has 37 protons, 37 electrons, and a mass number of 85.
So,
Mass number = number of protons + number of neutrons.
85 = 37 + n
n = 85 - 37
n = 48
More on mass number can be found here: brainly.com/question/4408975
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A salesclerk gets gets 7% commission on the sale of each computer. What is her commission on the sale of a computer that sells for $495.00?
Answer:
$34.65
Step-by-step explanation:
Heyy please answer pleaseeeeee help me
Answer:
no solution
Step-by-step explanation:
Plz some answer this question, i posted this question 1000times plz answer, thank you so much, plz show all the working GOD BLESS YOU
Answer:
610.9 km
Step-by-step explanation:
For the plane that is flying at 520km/h:
520km/h * 45minutes * 1h/60minutes = 390 km
For the plane that is flying at 480km/h:
480km/h * 45minutes * 1h/60minutes= 360 km
This is a SAS triangle which means Side angle Side
the formula for this is: a^2 = b^2 + c^2 − 2bc cosA
for this problem it should be:
a^2= (390^2) +(360^2) - 2(390*360)*cos(115)
a should be approximately 610.9 km
Solve the problem
-4p - 4p
[tex]\bold{Hey\ there!}[/tex]
[tex]\bold{-4p - 4p = \ ?}\\\ \bold{-4 - 4 = -8}\\\bold{-p - p = -p}\\\bold{-4p - 4p=\underline{-8p}}\\\boxed{\boxed{\bold{Answer: -8p}}}\checkmark[/tex]
[tex]\text{\bold{Good luck on your assignment and enjoy your day!}}[/tex]
~[tex]\frak{LoveYourselfFirst:)}[/tex]
Answer:
it's -8p
Step-by-step explanation:
Pls don't delete my question its annoying
Please help me I need ASAP
Answer:
(3)
Step-by-step explanation:
Dividing both sides by Pt, we get option (3).
What would be the awnsers
Answer:
I think the answer is
x=4
y=6
Step-by-step explanation:
What is the sum of (-10)+(-7)=
Answer:
-17
Step-by-step explanation:
Answer:
-17
Step-by-step explanation:
[tex](-10)+(-7)= - 10 - 7 = - 17[/tex]
answer this guys.....
9514 1404 393
Answer:
(b) 25 cm²
Step-by-step explanation:
The ratio of areas is the square of the ratio of linear dimensions.
ar(ΔABC)/ar(ΔDEF) = (AB/DE)² = (1/2)² = 1/4
Then ...
ar(ΔABC) = (1/4)(100 cm²) = 25 cm² . . . . . multiply by ar(ΔDEF)
The area of ΔABC is 25 cm².