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3 years ago

A plane cuts a pyramid as shown in the diagram. What is the shape of the cross section

Mathematics

1 answer:

Andreas93 [3]3 years ago

6 0

A is your answer! Because of how many sides it has.

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Hi can anybody tell me the answer

VladimirAG [237]

The answer would be 2x^7

5 0

3 years ago

Read 2 more answers

Yesterday, a shipping company delivered a combined total of 50,995 letters and packages. If

In-s [12.5K]

Answer:

letters = 46536

Step-by-step explanation:

letters + packages = 50995

letters + 4459 = 50995

letters = 50995 - 4459

letters = 46536

8 0

3 years ago

8. © Assessment An old building has

Pani-rosa [81]

Answer:

Step-by-step explanation:

big windows 48

small windows 12

broken windnows9

unbroken windows= 48+12-9= 51

unbroken 51 windows

7 0

3 years ago

Leno4ka [110]

Answer:

$\frac{s^2-25}{(s^2+25)^2}$

Step-by-step explanation:

Let's use the definition of the Laplace transform and the identity given: $\mathcal{L}[t \cos 5t]=(-1)F'(s)$ with $F(s)=\mathcal{L}[\cos 5t]$ .

Now, $F(s)=\int_0 ^{+ \infty}e^{-st}\cos(5t) dt$ . Using integration by parts with u=e^(-st) and dv=cos(5t), we obtain that $F(s)=\frac{1}{5}\sin(5t)e^{-st} |_{0}^{+\infty}+\frac{s}{5}\int_0 ^{+ \infty}e^{-st}\sin(5t) dt=\int_0 ^{+ \infty}e^{-st}\sin(5t) dt$ .

Using integration by parts again with u=e^(-st) and dv=sin(5t), we obtain that

$F(s)=\frac{s}{5}(\frac{-1}{5}\cos(5t)e^{-st} |_{0}^{+\infty}-\frac{s}{5}\int_0 ^{+ \infty}e^{-st}\sin(5t) dt)=\frac{s}{5}(\frac{1}{5}-\frac{s}{5}\int_0^{+ \infty}e^{-st}\sin(5t) dt)=\frac{s}{5}-\frac{s^2}{25}F(s)$ .

Solving for F(s) on the last equation, $F(s)=\frac{s}{s^2+25}$ , then the Laplace transform we were searching is $-F'(s)=\frac{s^2-25}{(s^2+25)^2}$

3 0

3 years ago

What value is equivalent to 52 + 53 − 54? A) -475 B) -350 C) -125 D) 5

Dafna1 [17]

None of these answer choices are correct. The answer would be 51. 52+53=105

105-54=51

7 0

3 years ago

Read 2 more answers