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blsea [12.9K]
2 years ago
9

Classify -42 in as many groups as possible on the Venn diagram.

Mathematics
2 answers:
Komok [63]2 years ago
4 0

Answer:

B

Explanation:

-42 is a integer, but not irrational, and whole numbers are all positive except for 0.

Nadya [2.5K]2 years ago
3 0
The answer would be B since -42 is an integer and any integer is also a rational number.
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Point C is located 8 inches from point A and 6 inches from point B. Points A and B are 2 inches apart.
marshall27 [118]

Answer:

B

Step-by-step explanation:

4 0
2 years ago
If α and β are the zeros of the quadratic polynomial f(x) = 3x2–4x + 5, find a polynomialwhose zeros are 2α + 3β and 3α + 2β.
Lelechka [254]

Answer:

\boxed{\sf \ \ \ 3x^2-20x+37\ \ \ }

Step-by-step explanation:

Hello,

a and b are the zeros, we can say that

f(x)=3(x^2-\dfrac{4}{3}x+\dfrac{5}{3}) = 3(x-a)(x-b)=3(x-(a+b)x+ab)

So we can say that

a+b=\dfrac{4}{3}\\ab=\dfrac{5}{3}

Now, we are looking for a polynomial where zeros are 2a+3b and 3a+2b

for instance we can write

(x-2a-3b)(x-3a-2b)=x^2-(2a+3b+3a+2b)x+(2a+3b)(3a+2b)\\= x^2-5(a+b)x+6a^2+6b^2+9ab+4ab

and we can notice that

a^2+b^2=(a+b)^2-2ab so

(x-2a-3b)(x-3a-2b)=x^2-5(a+b)x+6[(a+b)2-2ab]+13ab\\= x^2-5(a+b)x+6(a+b)^2+ab

it comes

x^2-5*\dfrac{4}{3}x+6(\dfrac{4}{3})^2+\dfrac{5}{3}

multiply by 3

3x^2-20x+2*16+5=3x^2-20x+37

4 0
3 years ago
PLSSSSS HELP QUICK IF U GIVE MEH THE CORRECT ANSWER ILL GIVE U BRAINLIEST
dexar [7]

Answer:

(120 * 32) + 160,500

Step-by-step explanation:

Brainliest!

3 0
2 years ago
Read 2 more answers
PLEASE HELP!!! WILL MARK BRAINLIEST!!!
kakasveta [241]
The answer is you need to post a pic in order to give help
5 0
2 years ago
Read 2 more answers
shopkeeper purchased a bicycle for rupees 5000 and marked its price a certain percent above the cost price then he sold it at 10
Gennadij [26K]

Lets say the final price of the bike is SP plus 13% VAT. So:

1.13 * SP = 6356.25

SP = 5625

Now SP was after 10% discount on Original Price, say MP. So:

0.9 * MP = 5625

MP = 6250

Therefore, the percent of Marked Price above Cost Price is:

(6250 - 5000) * 100/5000 = 25%

8 0
3 years ago
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