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VikaD [51]
2 years ago
9

The sum of 2 times a number and 6

Mathematics
2 answers:
SIZIF [17.4K]2 years ago
6 0
2x+6 is your answer sum is + 2times a number can be represented as 2x (x= a number), and the sum of 2 times a number and 6 is 2x +6.
Mamont248 [21]2 years ago
3 0
The answer would be 8 or 12 depending if it is a multiplication problem or an addition problem hopefully this helped u with your home work or an assignment in general.
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. Holly is flipping a coin and pulling a marble from a bag. There are 4 white marbles, 2 blue marbles, and 5 green marbles, all
alexgriva [62]
5/11?? marbles she could pick
6 0
3 years ago
Read 2 more answers
PRACTICE ANOTHER A piece of wire 18 m long is cut into two pieces. One piece is bent into a square and the other is bent into an
sergejj [24]

Answer:

Step-by-step explanation:

We have the equations

4x + 3y = 18   where x = the side of the square and y = the side of the triangle

For the areas:

A = x^2 + √3y/2* y/2

A = x^2  + √3y^2/4

From the first equation x = (18 - 3y)/4

So substituting in the area equation:

A = [ (18 - 3y)/4]^2 + √3y^2/4

A = (18 - 3y)^2 / 16 + √3y^2/4

Now for maximum / minimum area the derivative = 0 so we have

A' = 1/16 * 2(18 - 3y) * -3 + 1/4 * 2√3 y = 0

-3/8 (18 - 3y) + √3 y /2 = 0

-27/4 + 9y/8 + √3y /2 = 0

-54 + 9y + 4√3y = 0

y = 54 / 15.93

= 3.39 metres

So x = (18-3(3.39) / 4 = 1.96.

This is a minimum value for x.

So the total length of wire the square  for minimum  total area is 4 * 1.96

= 7.84 m

There is no maximum area as the equation for the total area is a quadratic with a positive leading coefficient.

3 0
3 years ago
What is the answer only if you know please , no games i will report you thank you
kkurt [141]

The answer is either c or d. I would go with answer c though. sorry if it is wrong

5 0
3 years ago
HELP, EXTRA POINTS AND BRAINIEST UMM DONT GUESS AND "NO NO NOOO LINKS" ty
3241004551 [841]

Answer:

236.3 feet squared.

Step-by-step explanation:

Base Surface Area =  8 squared

=  64 feet squared

Lateral Surface Area =  

2×8× √  

( 8 )2 + 102

2

=  172.3 feet sqaured

Total Surface Area = 236.3 feet squared

Please brainliest! I worked so hard!

7 0
2 years ago
What answer is this?
klemol [59]

Answer:

option B

\frac{31}{50}-\frac{4}{25} i

Step-by-step explanation:

Given in the question a complex fraction

<h3>Step1</h3>

To divide complex numbers, you must multiply by the conjugate. To find the conjugate of a complex number all you have to do is change the sign between the two terms in the denominator.

\frac{5+4i}{6+8i}(\frac{6-8i}{6-8i})

<h3>Step2</h3>

Distribute (or FOIL) in both the numerator and denominator to remove the parenthesis.

\frac{30+24i-40i-32i²}{36-64i^{2} }

<h3>Step3</h3>

Simplify the powers of i, specifically remember that i² = –1.

\frac{62-16i}{36+64}

<h3>Step4</h3>

\frac{62}{100}-\frac{16i}{100}

<h3>Step5</h3>

simply

\frac{31}{50}-\frac{4}{25}i

8 0
3 years ago
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