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vladimir2022 [97]
3 years ago
6

Prove that in general (x + a) 2 ≠ x2 + a2

Mathematics
1 answer:
qwelly [4]3 years ago
6 0

Answer:

yes they are not equal because (x + a) = 2x + 2a

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If f(x) = 2х2 +1, what is f(x) when x = 3?<br> оооо<br> 19
jeka57 [31]

Answer:

f(3) = 19

Step-by-step explanation:

Step 1: Define

f(x) = 2x² + 1

x = 3

Step 2: Substitute and Evaluate

f(3) = 2(3)² + 1

f(3) = 2(9) + 1

f(3) = 18 + 1

f(3) = 19

7 0
3 years ago
Solve the word problem. Round your final result to the nearest hundredth.
fenix001 [56]

Answer:

1)Area of circle: 64\pi

2)Area of semicircles: 128\pi

3)Area of quarter-circles: 128\pi

4)Total area of pattern: 320\pi

Step-by-step explanation:

r = 8cm

Given: 1 circle, 4 semicircles, and 8 quarter-circles.

Area of a circle: \pi r^{2}

1) A = \pi r^{2} where r = 8

A = 64\pi

2) 4 semicircles = 2 circles

so the answer is 2*A = 128\pi

3) 8 quarter-circles = 2 circles

Therefore, the answer here is the same as the answer for #2!

4)There are 5 circles total because:

1 circle = 1 circle

4 semicircles divided by 2 = 2 circles (because \frac{1}{2} times 4)

8 quarter-circles divided by 4 (think about what "quarter" means) = 2 circles

So ... 1 + 2 + 2 = 5 circles

Now we need to find the area of 5 circles which is just 5*A

5*A = 320\pi

4 0
2 years ago
The amount of water used to take a
eduard

Answer:

5.5 gallons

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
14540(squared by2) x 35=?
natka813 [3]
Your answer is 739,940,6000
3 0
2 years ago
<img src="https://tex.z-dn.net/?f=-3x%5E%7B2%7D%20-4y%5E%7B2%7D%20-z%5E%7B2%7D%2B6xy-6x%2B4z" id="TexFormula1" title="-3x^{2} -4
vovikov84 [41]
What are the directions??
8 0
3 years ago
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