3 years ago

PLS HELP, WILL REWARD BRAINLIEST !!

Mathematics

2 answers:

Mrac [35]3 years ago

4 0

B is the answer to this

Alenkasestr [34]3 years ago

3 0

B is the answer trust

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[(-21)+(-20)+(-19)………+(+18)+(+19)+(20)]:<br> (-3)=? İşlemin sonucunu bulunuz.<br> A) -7 B) -2 C) 2 D

bezimeni [28]

Answer:

A) -7

Step-by-step explanation:

good luck......

5 0

3 years ago

I need help with this please

34kurt

Answer:

I hope this helps!

7 0

3 years ago

15. What polynomial must be added to .x^2-2x+ 6 so that<br> the sum is 3x^2+ 7x ?

jeyben [28]

Answer:

$2x^2+9x-6$

Step-by-step explanation:

Just subtract the two because x + y = z and z-x = y

$3x^2+7x-(x^2-2x+6) = 3x^2+7x-x^2+2x-6\\\\=2x^2+9x-6$

You can test this by adding this expression back to the original.

$x^2-2x+6+(2x^2+9x-6) = 3x^2+7x$

8 0

3 years ago

You go to a sandwich shop and spend $12.36. You want to leave a 10% tip. What is the tip and what is your total cost?

kap26 [50]

what kind od sandwich cost 12.36 and why would you leave a tip if it cost so much

also just add 12.36 plus 1.84

5 0

3 years ago

after buying 55 books for Rs 50 each a man has rupees 3/4 of his money left how much he had at first?

lana [24]

Answer:

916.67 (corrected to 2 decimal places)

Hope I'm right, fingers crossed

Step-by-step explanation:

$55 \times 50 = 2750 \div \frac{3}{4 } = 916.6666667$

7 0

3 years ago