A right cone has a radius of 13 cm and a slant height of 20 cm. Find its surface area.
Question 12 options:
A)
10,618.6 cm2
B)
816.8 cm2
C)
1,347.7 cm2
D)
3,539.5 cm2
Answer:
[tex]A=1347.7\ cm^2[/tex]
Step-by-step explanation:
Given that,
Radius of a cone, r = 13 cm
Slant height of the cone, l = 20 cm
We need to find the surface area of the cone. The formula for the surface area of the cone is given by :
[tex]A=\pi rl +\pi r^2[/tex]
Put all the values,
[tex]A=\pi r(l + r)\\\\A=\pi \times 13(20 + 13)\\\\A=1347.7\ cm^2[/tex]
So, the surface area of the cone is [tex]1347.7\ cm^2[/tex].
please answer asap don’t troll!!!
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Whitney has 20 coins in her purse. Some are quarters and some are dimes. The total value of the coins is $3.35. How many quarters does Whitney have?
Answer:
I think it's 15 Quarters.
Step-by-step explanation:
The required number of dimes and quarter Whitney has is 11 and 9 respectively.
Given that,
Whitney has 20 coins in her purse. Some are quarters and some are dimes. The total value of the coins is $3.35. The number of quarters Whitney have is to be determined.
Simultaneous linear equations are two- or three-variable linear equations that can be solved together to arrive at a common solution.
Here,
Let the number of dimes be x and the number of quarters be y,
According to ot the question,
x + y = 20
x = 20 - y - - - - (1)
and
0.1x + 0.25y = 3.35
From equation 1
0.1[20 - y] + 0.25y = 3.35
y = 9
Now,
x = 20 - 9
x = 11
Thus, the required number of dimes and quarters Whitney has is 11 and 9 respectively.
Learn more about simultaneous equations here:
https://brainly.com/question/16763389
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A wall is y meters long.Two-thirds of the length of the wall is covered with stucco.The rest is covered with stone. Express the length of the wall that is covered in stone.
Answer:
points
Step-by-step explanation:
A hot air balloon can hold 350 lbs of weight. Tristan wants to ride up in
the hot air balloon. The pilot of the balloon weighs 200 lbs. If Tristan weighs 2300
ounces, can he ride in the hot air balloon with the pilot? Why or why not?
Step-by-step explanation:
First, convert 2,300 ounces into pounds.
2,300oz. - 143.75 pounds
You then need to add the pounds from the pilot and Tristan's.
143.75 + 200 = 343.75
If the hot air balloon can hold 350lbs, then both Tristan and the pilot can ride it together. The reason why they can ride it together is because 343.75 pounds is less than what the hot air balloon can originally hold, which is 350lbs.
I hope I helped teehee- ^^ :P
use the substitution method to solve the system of equations 8x5y=9 y=x+7
Answer:
( − 7.00006693 , − 0.00006693 ) ( 0.68099975 , 7.68099975 )
Step-by-step explanation:
what is the answer to 8+4
Answer: 12
Thx for the points!
12
it won't let me just write the numbers
what is the difference between the LCM and the hcf of 24,36 and 40
Answer:HELLO!
Step-by-step explanation:
Hii friend,
Prime factorisation of 24 = 2 × 2 × 3 × 2
Prime factorisation of 36 = 2×2 × 3 × 3
Prime factorisation of 40 = 2 × 2 × 2× 5
HCF of 24 , 36 and 40 = 2 × 2 = 4
LCM of 24 , 36 and 40 = 2 × 2 ×2 × 3 × 3 × 5 = 360
The decorating committee for a
school banque decides to put flower
arrangements on cach table. Each
arrangement will have 3 white
carnations and 5 yellow carnations.
The committee will need 60 white
carnations. What is the total numbe
of white and yellow carnations the
committee will need?
Consider the functions f(x) = (4/5)x and g(x) = (4/5)x + 6. What are the ranges of the two functions?
f(x): {yly >____}
g(x): {yly >____}
Answer:
0
6
Step-by-step explanation:
<3
The ranges are:
f(x): {y | y ≤ infinity}
g(x): {y | y ≤ infinity}
What is a function?A relation between a collection of inputs and outputs is known as a function. A function is a connection between inputs in which each input is connected to precisely one output. Each function has a range, co-domain, and domain.
For the function f(x) = (4/5)x, any input value of x will be multiplied by 4/5 and produce a corresponding output value y.
Since the fraction 4/5 is less than 1, the output values of f(x) will always be smaller than the input values of x.
Therefore, the range of f(x) will be all real numbers less than or equal to the greatest possible output value.
The greatest possible output value will occur when x is the greatest possible input value, which is infinity. So, the range of f(x) is:
f(x): {y | y ≤ infinity}
For the function g(x) = (4/5)x + 6, any input value of x will be multiplied by 4/5, then 6 will be added to the result to produce a corresponding output value y.
The fraction 4/5 is less than 1, so the output values of g(x) will always be less than the input values of x plus 6.
Therefore, the range of g(x) will be all real numbers less than or equal to the greatest possible output value, which occurs when x is infinity. So, the range of g(x) is:
g(x): {y | y ≤ infinity}
To learn more about the function;
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ILL MARK U AS BRAINLIEST PLS HELP
Answer:
The third one
Step-by-step explanation:
Answer:
Answer choice number 3
Step-by-step explanation:
If you subtract 35,000-31,000=4000
If you subrtact 27,000-23,000=4000
So the planes altitude drops -4,000 Ft every one minute
Hope this helps
A hiker walks at a speed of 3 2/5 kilometers per hour. How many kilometers will the hiker walk-in:
3/4 hour?
Pls, give the answer in fraction form.
Answer:
2.55 km or 2 11/20 km or 51/20 km
What are your answer choices?
PLZ HELP YOU WILL GET BRAINLIEST ND GET 100 POINTS
Which is the correct way to model the equation 5 x + 6 = 4 x + (negative 3) using algebra tiles? 5 positive x-tiles and 6 positive unit tiles on the left side; 4 positive x-tiles and 3 negative unit tiles on the right side 6 positive x-tiles and 5 positive unit tiles on the left side; 3 negative x-tiles and 4 positive unit tiles on the right side 5 positive x-tiles and 6 negative unit tiles on the left side; 4 positive x-tiles and 3 negative unit tiles on the right side 5 positive x-tiles and 6 positive unit tiles on the left side; 4 positive x-tiles and 3 positive unit tiles on the right side
[tex]\underline \bold{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }[/tex]
[tex]\huge\underline{\sf{\red{Problem:}}}[/tex]
Which is the correct way to model the equation 5 x + 6 = 4 x + ( -3 ) using algebra tiles?[tex]\huge\underline{\sf{\red{Choices:}}}[/tex]
A.).5 positive x-tiles and 6 positive unit tiles on the left side; 4 positive x-tiles and 3 negative unit tiles on the right side.B.) 6 positive x-tiles and 5 positive unit tiles on the left side; 3 negative x-tiles and 4 positive unit tiles on the right side C.) 5 positive x-tiles and 6 negative unit tiles on the left side; 4 positive x-tiles and 3 negative unit tiles on the right side D.) 5 positive x-tiles and 6 positive unit tiles on the left side; 4 positive x-tiles and 3 positive unit tiles on the right side[tex]\huge\underline{\sf{\red{Answer:}}}[/tex]
A.).5 positive x-tiles and 6 positive unit tiles on the left side; 4 positive x-tiles and 3 negative unit tiles on the right side.[tex]\huge\underline{\sf{\red{Explanation:}}}[/tex]
To use algebra tiles to model an equation, we place the relevant number of variable rectangle tiles and number square tiles for the left side of the equation and for the right side of the equation. Then we play around with our tiles so that we end up with the rectangle tiles by themselves on one side.[tex]\underline \bold{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }[/tex]
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✍︎ C.Rose❀
How do you multiply monomials with the same base?
9514 1404 393
Answer:
multiply their coefficients, use the base with the sum of exponents
Step-by-step explanation:
The coefficients multiply. The base gets an exponent that is the sum of the exponents of the factors.
(a·x^b)(c·x^d) = ac·x^(b+d)
_____
If you remember that an exponent is simply an indicator of the number of times the base is a factor, this should be fairly clear. The usual associative and commutative properties of multiplication apply.
Example
5x^2 · 7x^3= 5·x·x·7·x·x·x
= 5·7·x·x·x·x·x
= (5·7)(x^(2+3))
= 35x^5
can some one plz help me on the qustion
Answer:
D.
Step-by-step explanation:
[tex]\frac{9}{16}[/tex] converted to decimal is 0.5626
[tex]\frac{7}{12}[/tex] converted to decimal is 0.5833
So answer choice D is the correct answer.
I’m so done with math bro
Carrie has 0.83 liters of juice in her pitcher. Sanji's pitcher has 2 times as much juice as Carrie's pitcher. Lee's pitcher has 4 times as much juice as Carrie's pitcher. Sanji and Lee pour all their juice into a large bowl.
How much juice is in the bowl?
There are liters of juice in the bowl.
Answer:
Step-by-step explanation:
No matter what, whatever number times the amount will look like this.
Carries x the number times = the other pitchers.
For example if sanjis is two times carries then it will be 0.73 times 2. Do the same thing with both and then add the two answers together.
If you provide "how many times" then I can help a little more!
Which equation is nonlinear?
A. y=3
B. y=5/x
C. y=5x+10
D. y=7
Answer:
b
Step-by-step explanation:
b because you cant have x as a denominator in this situation
HELP PLEASE ANSWER FAST!!!!! WILL MARK BRAINLYEST!!!!!!!!
The graph of f(x) = (0.5% is replaced by the graph of g(x) = (0.5)* - k. If g(x) is obtained by shifting f(x) down by 5 units, then what is the value of k?
A. K= 1/5
B. k=5
C. k=-1/5
D. k= -5
Answer:
b is the answer
Step-by-step explanation:
the graph of f(x)=0.5x is replaced by the graph of g(x) = 0.5x-k
if g(x) is obtained by shifting f(x) down by 5 units,
then the graph of f(x) = 0.5x is replaced by the graph of g(x) = 0.5x-5
so k = 5 units
hope this helps
find whether the following are sides of a right angled triangle
Answer:
17^2 =8^2 + 5^2=
17 x 17=8x8+5x5
289=64+25
289=89
no ,it is not right angle triangle
17^2=8^2 + 15^2
17 x17=8 x8+15x 15
289=64+225
289=289
yes ,it is right angle triangle
mark me as brainlist
Step-by-step explanation:
Find the value of x.
Answer: [tex]x = 2\sqrt{15}[/tex]
Step-by-step explanation:
[tex]\dfrac{15}{x}=\dfrac{x}{4} \\\\ x \times x = 15 \times 4\\x^{2} =60\\x=\sqrt{60} =2\sqrt{15}[/tex]
.is BLANK
than
is fewer
than
3 < 5
Answer:
I do not know what you just said so I assume your asking if 3 is less than 5 and yes 3 is less than 5
To get on a certain toll road a driver has to take a card that lists the mile entrance point. The card also has a timestamp. When going to pay the toll at the exit, the driver is surprised to receive a speeding ticket along with the toll. Explain how this can happen.
Answer:
Step-by-step explanation:
This can happen because of the timestamp on the toll card. When you pass through the initial entrance point the timestamp marks the exact moment you passed. When you pass through the exit toll point the individual subtracts the current time from the time you entered the initial toll entrance. From this, he can easily determine the average speed that you were driving at. If the average speed is higher than the speed limit, it means that at some point between the two toll booths you were speeding and therefore they can give you a speeding ticket.
(can u guys help me PLSSSSS ) A company sets sales goals for employees each month.
A: At her current pace, how many items will Kristina sell in 28 days?
B:Is she on track to meet the goal? Explain
Solve for x.
12x - 4 = 4(2x + 1)
Answer:
X = 2
Step-by-step explanation:
12x - 4 = 4(2x + 1) (multiple 2x and 1 by 4)
=> 12x - 4 = 8x + 4
=> 12x - 8x = 4+4 (and the alike terms together)
=> 4x = 8
=> x = 8/4 ( divide 8 and 4 by 4)
=> x = 2/1
=> x = 2
PLEASE HELP! WILL GIVE BRAINLIEST!
Answer:
x=12
Step-by-step explanation:
You would equal XY and ZY. the solve that way.
The graph y = 1/2x^2 - x - 4 is shown below. State the coordinate of the zero(s):
Answer:
Zeros → (-2, 0) and (4, 0)
Step-by-step explanation:
Equation of the graph has been given as,
y = [tex]\frac{1}{2}x^{2} -x-4[/tex]
For zeros of the function,
y = 0
Therefore, [tex]\frac{1}{2}x^{2} -x-4=0[/tex]
By solving the equation algebraically,
x² - 2x - 8 = 0
x² - 4x + 2x - 8 = 0
x(x - 4) + 2(x - 4) = 0
(x + 2)(x - 4) = 0
x = -2, 4
Therefore, coordinates of the zeros will be (-2, 0) and (4, 0).
Let's confirm the zeros (x-intercepts) from the graph attached,
Coordinates of the x-intercepts are,
(-2, 0) and (4, 0)
Big burgers restaurant just got a shipment of ground beef that was 384 oz they make one pound burgers how many burgers can they make with the shipment that they received
how much is 40% out of 16.32
Answer:
6.528
Step-by-step explanation:
just multiply 16.32 by .4
PLEASE ANSWER THIS ASAP, I WILL BE GIVING YOU A THANKS!
Answer:
A
Step-by-step explanation:
When I did the two questions on the white board, only equation one had infinite solutions. Equation 2 have no solutions.