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2 years ago

I would like some help pleas

Mathematics

1 answer:

myrzilka [38]2 years ago

3 0

Answer:

Step-by-step explanation:

Student who did not play Volleyball = Students who play only hockey + students who don't play any game

= 5 + 3 = 8

Students who play hockey only = 5

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1.) what does X equal 4x = -12 <br> 2.)

Eddi Din [679]

Answer:

-3

Step-by-step explanation:

this is x equals to -3

we can divide the 4 to other side

7 0

3 years ago

Read 2 more answers

Which statements are true based on the diagram? Select three options.

Aneli [31]

Answer:

On Edge its:

Option A: Points N and K are on plane A and plane S.

Option C: Point P is the intersection of line n and line g.

Option D; Point's M, P, and Q are noncollinear.

Are Correct.

Step-by-step explanation:

5 0

2 years ago

If <img src="https://tex.z-dn.net/?f=%20300cm%5E%7B2%7D%20" id="TexFormula1" title=" 300cm^{2} " alt=" 300cm^{2} " align="absmid

Artist 52 [7]

Check the picture below. Recall, is an open-top box, so, the top is not part of the surface area, of the 300 cm². Also, recall, the base is a square, thus, length = width = x.

$\bf \textit{volume of a rectangular prism}\\\\
V=lwh\quad 
\begin{cases}
l = length\\
w=width\\
h=height\\
-----\\
w=l=x
\end{cases}\implies V=xxh\implies \boxed{V=x^2h}\\\\
-------------------------------\\\\
\textit{surface area}\\\\
S=4xh+x^2\implies 300=4xh+x^2\implies \cfrac{300-x^2}{4x}=h
\\\\\\
\boxed{\cfrac{75}{x}-\cfrac{x}{4}=h}\\\\
-------------------------------\\\\
V=x^2\left( \cfrac{75}{x}-\cfrac{x}{4} \right)\implies V(x)=75x-\cfrac{1}{4}x^3$

so.. that'd be the V(x) for such box, now, where is the maximum point at?

$\bf V(x)=75x-\cfrac{1}{4}x^3\implies \cfrac{dV}{dx}=75-\cfrac{3}{4}x^2\implies 0=75-\cfrac{3}{4}x^2
\\\\\\
\cfrac{3}{4}x^2=75\implies 3x^2=300\implies x^2=\cfrac{300}{3}\implies x^2=100
\\\\\\
x=\pm10\impliedby \textit{is a length unit, so we can dismiss -10}\qquad \boxed{x=10}$

now, let's check if it's a maximum point at 10, by doing a first-derivative test on it. Check the second picture below.

so, the volume will then be at $\bf V(10)=75(10)-\cfrac{1}{4}(10)^3\implies V(10)=500 \ cm^3$

6 0

2 years ago

What is greater 0.097 or 97%

Minchanka [31]

97% is greater than 0.097

8 0

3 years ago

What is the range of the following data set?

QveST [7]

60,40,35,45,39

Put in order from least to greatest

35, 39, 40, 45, 60

Range = Max - Min

Range = 60 - 35

Range = 25

Answer

D) 25

3 0

2 years ago

I would like some help pleas ​

I would like some help pleas