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2 years ago

15

someone help. i can’t seem to figure this out, it’s simple math but i just don’t understand it i need the answer as soon as poss

ible! please and thank you. this is my average grade so i need to make a good grade!

1 answer:

Gre4nikov [31]2 years ago

5 0

For each of the squares, the area is 32. (6x6, also known as height and width.). There is 3 squares. 32 x 3 =96.

Hope this helps!

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2. Suppose (220)_b and (251)_b are the squares of consecutive integers. Determine b.

Andrei [34K]

Let $x$ and $x+1$ be these consecutive integers. For some base $b$ , we can write

$(x_{10})^2=220_b=2b^2+2b$

$((x+1)_{10})^2=251_b=2b^2+5b+1$

If

$x^2=2b^2+2b$

then

$x^2+1=2b^2+2b+1$

Now,

$x^2+2x+1=2b^2+5b+1$

$2x+2b^2+2b+1=2b^2+5b+1$

$\implies2x=3b$

Squaring both sides gives

$4x^2=9b^2$

and so

$4(2b^2+2b)=9b^2$

$\implies8b^2+8b=9b^2$

$\implies b^2-8b=0\implies\boxed{b=8}$

(because the base has to be non-zero)

3 0

3 years ago

I need help on this one, I got 3 penalty's and if I get anymore Imma break down and start crying and get mad, I know that sounds

SOVA2 [1]

<h3>Answer: 2nd answer!</h3>

Step-by-step explanation:

-8 < -2 < 4 < 18, so 2nd answer must be the right one!

4 0

2 years ago

Please help me i need an answer

Naddik [55]

First ordered pair: (3,-7)
y=2/3x-5
-7=2/3-5
false

Ordered pair #2: (7.5,0)
y=2/3x-5
0=5-5
true

Ordered pair #3: (0,5)
y=2/3x-5
5=0-5
false

Ordered pair #4: (6,1)
y=2/3x-5
1=4-5
false

the answer to this question is the second option

4 0

2 years ago

Read 2 more answers

If two rays are opposite rays, then they have a common endpoint.

Ilia_Sergeevich [38]

The statement is true.

3 0

3 years ago

stepladder [879]

Answer:

it changed 21 Fahrenheit

Step-by-step explanation:

-14.8 - 6.2 = -21

and minus + minus = +

so, -14.8 + 21 = 6.2

i think so that is the right answer

4 0

2 years ago