3 years ago

How many rectangle faces dose a pentagonal pyramid have

Mathematics

2 answers:

OleMash [197]3 years ago

8 0

Answer:

none

Step-by-step explanation:

kati45 [8]3 years ago

3 0

None. all the faces are a pentagon (the base) or a triangle (the faces)

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Look at pic I need help!!!! :(

Novosadov [1.4K]

Answer: x=12

Step-by-step explanation:

5x-15=2x+21(AIA)

3x-15=21

3x=36

x=12

7 0

3 years ago

Find the zeros of the function.

Zigmanuir [339]

Answer:

x = 3, x = 4

Step-by-step explanation:

To find the zeros of the function, equate f(x) to zero, that is

(x - 3)(2x - 8) = 0

Equate each factor to zero and solve for x

x - 3 = 0 ⇒ x = 3 ← smaller solution

2x - 8 = 0 ⇒ 2x = 8 ⇒ x = 4 ← larger solution

5 0

3 years ago

State two numbers such that the lesser number is 25% less than the greater number.

Lorico [155]

75 and 100.

It is 25% lesser because if you subtract 75 and 100 from each other, you get 25.

8 0

4 years ago

Read 2 more answers

Which expression is modeled by this se of arrows in the number line

Bond [772]

Answer:

Step-by-step explanation:

7 0

3 years ago

How to integrate ∫㏑x/χ<br> from 1 to e

Natali [406]

$\int_1^e\dfrac{\ln x}{x}dx,~\text{if}~u=\ln x\to x=e^u\to dx=e^udu\\\\\text{So, finding the new limits:}\begin{cases}x=1\to u=\ln1\to u=0\\x=e\to u=\ln e\to u=1\end{cases}\\\\
\int_1^e\dfrac{\ln x}{x}dx=\int_0^1\dfrac{u}{e^u}e^udu=\int_0^1u\,du=\left[\dfrac{u^2}{2}\right]_0^1=\dfrac{1^2}{2}-\dfrac{0^2}{2}=\dfrac{1}{2}\\\\
\boxed{\int_1^e\dfrac{\ln x}{x}dx=\dfrac{1}{2}}$

6 0

3 years ago