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3 years ago

Find the surface area of the cylinder to the nearest tenth of a square unit. Use 3.14 for TT.

Mathematics

1 answer:

Nastasia [14]3 years ago

3 0

Bestie i would say it’s A because you multiply and you don’t have the other surface areas hope this helps <3

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What is the rate of change from x = n to x = 2n?

puteri [66]

Answer:

$\dfrac{-8}{\pi}$

Step-by-step explanation:

The rate of change of the function f(x) from point $x_1$ to point $x_2$ can be calculated using formula

$\dfrac{f(x_2)-f(x_1)}{x_2-x_1}$

Given

$x_1=\pi\\ \\x_2=2\pi$

From the graph of the function

$f(x_1)=f(\pi)=4\\ \\f(x_2)=f(2\pi)=-4$

So, the rate of change is

$\dfrac{f(x_2)-f(x_1)}{x_2-x_1}=\dfrac{-4-4}{2\pi -\pi}=\dfrac{-8}{\pi}$

5 0

3 years ago

Determine the total number of roots of each polynomial function using the factored form.f (x) = (x 1)(x - 3)(x - 4)

aliina [53]

Answer:

there are 3 roots at x=+-1, +3, +4

Step-by-step explanation:

4 0

2 years ago

Someone help with these proofs please I'm stuck :/

Ket [755]

7.
1) Given (info from top)
2) <BCA =~ <DCE (vertical angles theorem)
3) triangle BCA =~ triangle DCE (SAS)
4) BA =~ ED (CPCTC)

=~ means congruent

8.
1) Given
2) CA =~ AC (reflexive property of equality)
3) triangle ACB =~ triangle ACD (ASA)
4) BC =~ CD (CPCTC)

Hope this helps!! :)

5 0

4 years ago

Apply the distributive property to factor out the GCF.<br><br> 22c + 33d=________

slava [35]

Answer:

Step-by-step explanation:

3 0

4 years ago

Spidermans web is 100 feet long. He wants to shoot his web at a projection of 30 degrees. How tall is the building if he is tryi

Ipatiy [6.2K]

Answer:

50 ft

Step-by-step explanation:

The concept to apply here is that of laws of sine of an angle where;

Sine of an angle theta = opposite length / hypotenuse

Sin 30° = height of building / length of the web

Sin 30° = h / 100

h = 100 sin 30° = 100 * 0.5 = 50 ft

4 0

3 years ago