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3 years ago

PLEASE HELP ONLY HAVE FOUR MINUTES

Mathematics

1 answer:

kumpel [21]3 years ago

8 0

Sorry but I dont think you are gonna get the answer in 4 minutes

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HELP URGENT PLEASE!!!!!!!!!!!!!!

leonid [27]

Answer:

The supplement of 89° is the angle that when added to 89° forms a straight angle (180° ).

Step-by-step explanation:

4 0

3 years ago

How do you simplify this

Dafna11 [192]

Top:

x / (x + 1) - 1 / x

= [x^2 - (x +1)] / x(x+1)

= (x^2 - x - 1 ) / x (x+1)

Bottom:

x / (x + 1) + 1 / x

= [x^2 + (x +1)] / x(x+1)

= (x^2 + x + 1 ) / x (x+1)

Now you have:

(x^2 - x - 1 ) / x (x+1)

----------------------------

(x^2 + x + 1 ) / x (x+1)

= (x^2 - x - 1 ) / x (x+1) * x (x+1) / (x^2 + x + 1 )

= (x^2 - x - 1 ) /(x^2 + x + 1 )

Answer:

x^2 - x - 1

---------------------

x^2 + x + 1

7 0

3 years ago

How many ways are there to select 12 countries in the United Nations to serve on a council if 3 are selected from a block of 45,

sattari [20]

Answer: There are 2346953264 ways to do so.

Step-by-step explanation:

Since we have given that

Total number of selected countries = 12

Number of selected countries from a block of 45 = 3

Number of selected countries from a block of 57 = 4

So, remaining number of selected countries from a block of 69.

So, 12-(3+4)=12-7=5

Now, we need to find the number of ways, so we will use "Combination" to select that number of countries.

So, it becomes.

$^{45}C_3\times ^{57}C_4\times ^{57}C_5\\\\=14190\times 395010\times 4187106\\\\=2346953264$

Hence, there are 2346953264 ways to do so.

8 0

3 years ago

6 ÷ 2 · 6 + 1 = 3/7 1.5 19

AysviL [449]

Simplify 6 ÷ 2 to 3

3 × 6 + 1

Simplify 3 × 6 to 18

18 + 1

Simplify

8 0

3 years ago

Read 2 more answers

Select all of the correct forms of 806,510.

deff fn [24]

Answer:

it is a, b, and c, but not d

4 0

2 years ago