Factor 3x^2y^2 − 2xy^2 − 8y^2. Show your work.

Answers

Answer 1

Answer: $3 x^(2) y^(2) -2x y^(2) -8 y^(2) \n = 3 x^(2) y^(2) -6x y^(2)+4x y^(2) -8 y^(2) \n =(3 x^(2) y^(2) -6x y^(2))+(4x y^(2) -8 y^(2)) \n =3xy^(2) (x-2)+4 y^(2)(x-2) \n =(3xy^(2)+4 y^(2))(x-2) \n = y^(2) (3x+4)(x-2)$

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fie abc un triunghi cu masura unghiului a de 90 de grade ab este 6 cm bc=10 si ca=8 calculati;sin b; tg b; sin c; tg c; cos b; ctg b; cos c; ctg c

Answers

sinB = cosC = AC / BC = 8/10 = 4/5;
tgB = ctg C = AC/AB = 8/6 = 4/3, because we use T. Pitagora for calculating AB;
sinC = cosB = AB/ BC = 6/10 = 3/5;
tgC = ctgB = AB/ AC = 6/8 = 3/4.

If 60% of a numbet is 18,what is 89% of the number

Answers

what is this number?

if 60%x=18

then

$(60)/(100)$ x=18

$(6)/(10)$ x=18
$(3)/(5)$ x=18
3x=18*5
x=6*5
x=30

and 89% of it:
$(89)/(100)$ *30= $(89)/(10)$ *3=26.7 which is the answer

A moving company charges $800 plus $16 per hour. Another moving company charges $720 plus $21 per hour. How kind is a job that costs the same no matter which company is used?

Answers

800 + 16h = 720 + 21h
80 = 5h
h = 16 hr

1200 + 100d = 3230 – 190d
290d = 2030
d = 7 days

2500 + 150m = 3000 + 125m
25m = 500
m = 20 months

Brain teaser I will give lots of points for THIS!!!

Answers

Answer:

46???

Step-by-step explanation:

apples: 10

bananas: 6

oranges: 6

soo im guessing 10 + 6 x 6 = 46?????

Determine the theorem that justifies each if-then statement.Theorems:
• Corresponding Angles Theorem

• Corresponding Angles Converse Theorem

• Same-Side Interior Angles Theorem

• Same-Side Interior Angles Converse Theorem

• Alternate Interior Angles Theorem

• Alternate Interior Angles Converse Theorem

• Same-Side Exterior Angles Theorem

• Same-Side Exterior Angles Converse Theorem

• Alternate Exterior Angles Theorem

• Alternate Exterior Angles Converse Theorem

• Perpendicular/Parallel Line Theorem

Answers

Answer:

1a Alternate exterior angles theorem

1b Alternate interior angles theorem

1c Alternate interior angles converse theorem

1d Corresponding angles theorem

1e Same-side interior angles theorem

1f Same-side exterior angles theorem

1g Same-side interior angles converse theorem

Step-by-step explanation:

Look at the given angles and see what they are: interior, exterior, alternate, same side, etc.

If the lines are given as parallel, use the theorem.

If you show the lines are parallel, use the converse.

1a Alternate exterior angles theorem

1b Alternate interior angles theorem

1c Alternate interior angles converse theorem

1d Corresponding angles theorem

1e Same-side interior angles theorem

1f Same-side exterior angles theorem

1g Same-side interior angles converse theorem

You are completing ywr math homework of 16 problems. Yo complete 75% before. dinner. How many do yw have left to complete?

Answers

Answer:

Step-by-step explanation:

16/4 = 4

25% = 4

50% = 8

75% = 12

100% = 16

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