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3 years ago

Please, show some work

Mathematics

2 answers:

Jobisdone [24]3 years ago

8 0

I can not see the photo

lidiya [134]3 years ago

5 0

9514 1404 393

Answer:

A. x -4y

Step-by-step explanation:

The first expression factors as ...

= 2x(x -4y)

The second expression factors as ...

= 3x^2(x -4y)

Factors that are common between these factorizations are ...

x, (x -4y)

Of these, the one on your list of choices is ...

x -4y

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a city council has 12 members. Five are democratss and seven are republicans. How many ways can a four member comitte be selecte

Nostrana [21]

Answer: 495ways

Step-by-step explanation:

Selecting some b people from a group of people are based on combination principle.

If we are selecting "r'' people from a total number of 'n' people, we will have;

nCr = n!/(n-r)!r!

Since 4 people are to be selected from a committee of 5democrats and 6republicans,

Note that the question is not specific as to how many from Republicans and Democrats to select that will make the 4people,

Therefore, the selection can be done in this manner

- 0people from democrats and 4peoples from Republicans

5C0 × 7C4 = 5!/5!0! × 7!/3!4!

= 1×35= 35ways

- 1people from democrats and 3peoples from Republicans

5C1 × 7C3 = 5×35 = 175ways

- 2peoples from democrats and 2peoples from Republicans

5C2 × 7C2 = 10 × 21 = 210ways

- 3peoples from democrats and 1people from Republicans

5C3 × 7C1 = 10 × 7 = 70ways

- 4peoples from democrats and 0people from Republicans

5C4 × 7C0 = 5 × 1 = 5ways

Adding all possible combinations

35+175+210+70+5

= 495ways

3 0

3 years ago

Pleaseee answer this question quickly.. I will give brainliest MAKE SURE ITS RIGHT

Amanda [17]

Answer:

JKM is acute and MKL is obtuse

Step-by-step explanation:

because an acute triangle's interior angles are always 180° and an obtuse triangle's sum is greater than 90°

5 0

3 years ago

You are standing on a footbridge in a city park that is 12 feet high above the pond. You look down and see a duck in the water 7

SashulF [63]

Opposite/adjacent= cosine
cos B= opp/adj

cosB= 7/12
B=cos^-1 (7/12)
(Type it into a graphing calculator)
B=54.3 degrees

Make sure your calculator is in degree mode and you use the inverse cosine.

8 0

3 years ago

When writing 3.7272727272... as a ratio of integers, what is the common ratio?

Law Incorporation [45]

The answer is: "41 / 11 " ; or, write as: " 41 : 11 " .
__________________________________________________________
Explanation:
__________________________________________________________
72/99 = (72÷9) / (99÷9) = 8/ 11 .

So, 3.727272727272... = "3 $\frac{8}{11}$ " .

→ "3 $\frac{8}{11}$ " = [(11 *3) + 8] / 11 = (33 + 8) / 11 = 41 / 11 .
__________________________________________________________
"41 / 11" cannot be simplified any further; so the answer is:
__________________________________________________________
"41 / 11 " ; or, write as: " 41 : 11 " .
__________________________________________________________

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3 years ago

The Southside Band marches 1 3/4 miles in an hour in a parade. How far can they march in 5 hours? Multiply. (Enter as an imprope

OlgaM077 [116]

Well you start on the south side of the band and if it works to the 1 to 3 mile ratio then you have your awnser
I hope this helps

8 0

3 years ago