All categories

3 years ago

What is the answer please help

Mathematics

1 answer:

hram777 [196]3 years ago

4 0

Answer:

B: 22.5 degrees

Step-by-step explanation:

The interior angles of a pentagon add up to 540 degrees

(if you dont believe me you can turn a pentagon into three triangles, 3x180 = 540)

So you have four same angles say measure "x" degrees, and one final one that measures "5x" degrees, so 9x = 540, and x = 60

Unless I read the problem wrong, 60 degrees is the answer which is not an option :P

Edit: Yea I read it wrong, the final angle is 5 times the other four angles COMBINED, so that angle measures "20x" degrees.

The total would be 24x = 540, and so x = 22.5

You might be interested in

What is 49% of 3120?<br> What is 49% of 2130?

rusak2 [61]

We can make this expression to find out what 49% of 3120 and 2130:

49% * 3120

49/100 * 3120

152880/100

1528.8

49% of 2130

49/100 * 2130

104370/100

1043.7

8 0

3 years ago

Differentiate x^2 e^x logx

zimovet [89]

Product rule:

$\dfrac{\mathrm d}{\mathrm dx}(x^2e^x\log x)$

$=\dfrac{\mathrm d(x^2)}{\mathrm dx}e^x\log x+x^2\dfrac{\mathrm d(e^x)}{\mathrm dx}\log x+x^2e^x\dfrac{\mathrm d(\log x)}{\mathrm dx}$

Power rule:

$\dfrac{\mathrm d(x^2)}{\mathrm dx}=2x$

The exponential function is its own derivative:

$\dfrac{\mathrm d(e^x)}{\mathrm dx}=e^x$

Assuming the base of $\log x$ is $e$ , its derivative is

$\dfrac{\mathrm d(\log x)}{\mathrm dx}=\dfrac1x$

But if you mean a logarithm of arbitrary base $b$ , we have

$y=\log_bx\implies x=b^y=e^{y\ln b}\implies1=e^{y\ln b}\ln b\dfrac{\mathrm dy}{\mathrm dx}$

$\implies\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{e^{-y\ln b}}{\ln b}=\dfrac1{b^y\ln b}$

$\implies\dfrac{\mathrm d(\log_bx)}{\mathrm dx}=\dfrac1{x\ln b}$

So we end up with

$2xe^x\log x+x^2e^x\log x+\dfrac{x^2e^x}x$

$=xe^x(2\log x+x\log x+1)$

8 0

3 years ago

Is 22/13 equivalent to 13/4?

Amiraneli [1.4K]

Answer:

yes

Step-by-step explanation:

22/13 =1.69≈3.2

13/4 = 3.2

4 0

3 years ago

I need help please thank you

dezoksy [38]

It is the top left graph

3 0

4 years ago

<img src="https://tex.z-dn.net/?f=601893654x59765%3D" id="TexFormula1" title="601893654x59765=" alt="601893654x59765=" align="ab

Mazyrski [523]

Answer:

3.5972174e+13 could i get brainliest please?

Step-by-step explanation:

3 0

3 years ago