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rosijanka [135]
3 years ago
6

A cone has a height of 7 and a radius of 2 what is the surface area explain? please help

Mathematics
1 answer:
trapecia [35]3 years ago
8 0

The total surface area of the cone with the given measurements would be around 58.3087.

Hope this helps!

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the exit to garrett's house is after exit 51 but before exit 62. the number on the exit sing is not a prime nunber. the number i
Alex Ar [27]
52
- is prime? No
- is multiple of 3? No
continue

53
- is prime? Yes
continue

54
- is prime? No
- is multiple of 3? Yes
- is multiple of 4? No
continue

55
- is prime? No
- is multiple of 3? No
continue

56
- is prime? No
- is multiple of 3? No
continue

57
- is prime? No
- is multiple of 3? Yes
- is multiple of 4? No
continue

58
- is prime? No
- is multiple of 3? No
continue

59
- is prime? Yes
continue

60
- is prime? No
- is multiple of 3? Yes
- is multiple of 4? Yes

Therefore 60 is the answer, as it fits all the conditions


Simple trial and error.
5 0
3 years ago
Read 2 more answers
A spring with a spring constant k of 100 pounds per foot is loaded with 1-pound weight and brought to equilibrium. It is then st
shutvik [7]

Answer:

Equation of movement y(t)

y(t)=sin(10t-\pi/2)

Amplitude: 1 inch

Period: 0.628 seconds

Step-by-step explanation:

If there is no friction, the amplitude will be the length it was streched from the equilibrium. In this case, this value is 1 inch

A=1\,inch

The period depends on the mass and the spring constant.

The formula for the period is:

T=\frac{1}{f} =\frac{2/pi}{\omega} =2\pi\sqrt{\frac{m}{k}}=2\pi\sqrt{\frac{1}{100}}=2\pi*0.1=0.628\, s

The model y(t) for the movement of the mass-spring system is

y(t)=A\cdot sin(\omega t +\phi)\\\\A=1\\\\\omega=\sqrt{k/m} =\sqrt{100/1}=10\\\\y(0)=Asin(\phi)=-A\\\\ \phi=arcsin(-1)=-1.571=-\pi/2\\\\\\y(t)=sin(10t-\pi/2)

8 0
3 years ago
30 points! Find the angles formed by two intersecting lines, if the sum of three of the four angles is equal to 270°.
nydimaria [60]
Each angle is 90 degrees because 90 times 3 is 270.
8 0
3 years ago
Brandon is shopping at Old Navy during a sale. All shorts are $16 each and all t-shirts are $10 each.He has $100 to spend and wo
DaniilM [7]
Let
x = the number of shorts bought
y =  the number of t-shirts bought

A pair of shorts costs $16 and a t-shirt costs $10. Brandom has $100 to spend.
Therefore
16x + 10y ≤ 100
This may be written as
y ≤ - 1.6x + 10                 (1)

Brandon wants at least 2 pairs of shorts. Therefore
x ≥ 2                               (2)

Graph the equations y = -1.6x + 10 and  x = 2.
The shaded region satisfies both inequalities.

Answer:
Two possible solutions are
(a) 3 pairs of shorts and 4 t-shirts,
(b) 4 pairs of shorts and 2 t-shirts.

7 0
3 years ago
Help needed math 3 - 10 points read closely
inessss [21]
<h2>Hello!</h2>

The answer is:

The answer is the fourth option,

f(-3)=-\frac{1}{3}

<h2>Why?</h2>

Piecewise functions are functions that are composed by two or more expressions, the expression to use will depend of the domain or input that we need to evaluate.

We are given the piecewise function:

\left \{ {{\frac{1}{x}, if x

There, we know that:

We should use the first expression if the value to evaluate is less than -2.

So, for this case, the function will be:

f(x)=\frac{1}{x}

We should use the second expression if the value to evaluate is greater or equal than 2.

So, for this case, the function will be:

f(x)=x^{2}

Now, since we are given that the value to evaluate is -3, and its less than -2, we need to use the first expression, and evaluate it.

-3

So, evaluating the function we have:

f(x)=\frac{1}{x}

f(-3)=\frac{1}{-3}

f(-3)=-\frac{1}{3}

Hence, we have that the answer is the fourth option,

f(-3)=-\frac{1}{3}

Have a nice day!

7 0
3 years ago
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