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dezoksy [38]
2 years ago
7

What is the value of the expression

Mathematics
2 answers:
sleet_krkn [62]2 years ago
7 0

Answer:

the value of expression is 1\2

EleoNora [17]2 years ago
4 0
Sjshsbsbsbsnsnsjdnnd
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4a+b+16a^2-b^2 how to factorize this​
Mila [183]

hope it helps

<h2>stay safe healthy and happy...</h2>

8 0
2 years ago
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Use DeMorgan's laws to write a negation for the statement "the Hulk is green or the Iron Man is red"
erastova [34]

Answer:

"The Hulk is not green AND the Iron Man is not red"

Step-by-step explanation:

DeMorgan's laws state that the negation of an statement whose structure is "p OR q" is "not p AND not q", and similarly, that the negation of an statement whose structure is "p AND q" is "not p OR not q". The statement we want to negate in our case is "The Hulk is green OR the Iron Man is red". This is an statement whose structure is of the type "p OR q", where p would be "The Hulk is green", and q would be "the Iron Man is red". So according to DeMorgan's laws, its negation should be the statement "not p AND not q". To put them in common english, not p would be "The Hulk is NOT green", and not q would be "The Iron Man is NOT red". So the statement "not p AND not q" is simply "The Hulk is not green AND the Iron Man is not red".

7 0
3 years ago
Geometry: What is the midpoint of AB?
Alika [10]
I think it is negative 2
8 0
3 years ago
Read 2 more answers
There were 72 runners to start a race. in the first half of the race, 13 of them dropped out. in the second half of the race, 23
Mariana [72]
All you would need to to is do 13+23= 33 to get the total amount of people who dropped out, then do 72 ( the number in the beginning and subtract 33 from it because those are the people who dropped out so 72-33=39. 39 people finished the race.
8 0
2 years ago
Can you guys pls help me with this math question
Sindrei [870]

Answer:

Dimensions:  150 m x 150 m

Area:  22,500m²

Step-by-step explanation:

Given information:

  • Rectangular field
  • Total amount of fencing = 600m
  • All 4 sides of the field need to be fenced

Let x = width of the field

Let y = length of the field

Create two equations from the given information:

  <u>Area of field</u>:   A= xy

  <u>Perimeter of fence</u>:   2(x + y) = 600

Rearrange the equation for the perimeter of the fence to make y the subject:

\begin{aligned} \implies 2(x + y) & = 600\\ x+y & = 300\\y & = 300-x\end{aligned}

Substitute this into the equation for Area:

\begin{aligned}\implies A & = xy\\& = x(300-x)\\& = 300x-x^2 \end{aligned}

To find the value of x that will make the area a <em>maximum</em>, <u>differentiate</u> A with respect to x:

\begin{aligned}A & =300x-x^2\\\implies \dfrac{dA}{dx}& =300-2x\end{aligned}

Set it to zero and solve for x:

\begin{aligned}\dfrac{dA}{dx} & =0\\ \implies 300-2x & =0 \\ x & = 150 \end{aligned}

Substitute the found value of x into the original equation for the perimeter and solve for y:

\begin{aligned}2(x + y) & = 600\\\implies 2(150)+2y & = 600\\2y & = 300\\y & = 150\end{aligned}

Therefore, the dimensions that will give Tanya the maximum area are:

150 m x 150 m

The maximum area is:

\begin{aligned}\implies \sf Area_{max} & = xy\\& = 150 \cdot 150\\& = 22500\: \sf m^2 \end{aligned}

5 0
1 year ago
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