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Xelga [282]
3 years ago
15

A)2a+ 1=2a+3

Mathematics
2 answers:
Montano1993 [528]3 years ago
8 0

Answer:

I'm not sure but at least i tried

11111nata11111 [884]3 years ago
4 0
A) the answer is a=2
c) the answer is 2a = 2
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Write 257% as decimal
SCORPION-xisa [38]

Answer:

<u><em>please mark brainliest!</em></u>

Step-by-step explanation:

2.57

5 0
4 years ago
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What is the oblique asymptote of the function f(x) = the quantity of x squared plus x minus 2, all over x plus 1?
Archy [21]
The oblique asymptote is y = x
This is a slant asymptote

You can find this by performing polynomial long division. See the attached image for how to do the division. The quotient is the single "x" up at the very top. The remainder is -2 at the very bottom. The oblique asymptote is equal to the quotient. 

8 0
3 years ago
The sum of three co secutive numbers is 72 what are the smallest of these numbers
dybincka [34]

Step-by-step explanation:

The question above is answered below.

Consecutive numbers are set of numbers that follow one another in ascending or descending order, e.g. 1, 2, 3, 4, 5....

The sum of three consecutive numbers = 72

Let the unknown consecutive numbers be represented by x+1, x+2 and x+3 such that:

(x + 1) + (x + 2) + (x + 3) = 72

Remove the brackets

x + 1 + x + 2 + x + 3 = 72

Collect like terms and simplify

x + x + x + 1 + 2 + 3 = 72

3x + 6 = 72

Make 3x subject of formula by subtracting 6 from both sides

3x + 6 - 6 = 72 - 6

3x = 66

To obtain the value of x, divide through by the coefficient of x, which is 3. Hence;

\frac{3x}{3}  =  \frac{66}{3}

x = 22

Since x = 22,

x + 1 = 22 + 1 = 23

x + 2 = 22 + 2 = 24

x + 3 = 22 + 3 = 25

The smallest of these numbers is 23.

Check,

23 + 24 + 25 = 72

8 0
3 years ago
Read 2 more answers
Plzz help will mark brainliest
mina [271]

Answer:

Step-by-step explanation:

x^2 + 11y + y^2 -3x + 11 = 5x +23 - y

First put it into general form by setting the equation to zero  and moving all variables to one side.

x^2 + 11y + y^2 -3x + 11 = 5x +23 - y

       +y              -5x -11           -11

x^2 + y^2 - 8x + 12y = 12

Then solve by completing the square

x^2 - 8x         y^2 + 12y        = 12

(x -    )^2 + (y +   )^2 =

Half of 8 is 4

Then square 4 to get 16  

Therefore, we plug the 4 into the first parentheses

x^2 - 8x + 16 + y^2 + 12y      =12 +16

(x - 4)^2 + (y +  )^2 =

Half of 12 is 6

Squared, that would be 36

plug this into the second parentheses

x^2 - 8x + 16 + y^2 +12y + 36 = 12 + 16 + 36

(x - 4)^2 + (y + 6)^2 =

12 + 16 = 28 + 36 = 64

Therefore, the equation of the circle is: (x - 4)^2 + (y + 6)^2 = 64

Which is option D

3 0
3 years ago
!!!!!!!!!!!!!which answe
ivanzaharov [21]
Question: "A coin is tossed 8 times. Find the probability P(of exactly 6 occurrences of tails)"

Answer:
When we toss a coin we have 50% of probability to get a tail and 50% probability to get heads. 

If we toss the coin 8 times, in order to find P(T=6), we need to use the binomial distribution:
P = \frac{n!}{k!(n-k)!} p^{k} (1-p)^{n-k}
where:
n = total number of events
k = number of successes we want
p = probability of success

Therefore:
<span>P(T=6) = \frac{8!}{6!(2)!} 0.5^{6} (1-0.5)^{2}</span>  
= 28 · 0.015625 · 0.25
= 0.109375

Hence, the probability of getting 6 tails out of 8 tosses is D) 10.94%.
3 0
4 years ago
Read 2 more answers
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