I really need help with this someone

x-5y cannot be further simplified unless x and/or y is unknown.

In the case that you know what x is then you can isolate and solve for y, if you know what y is, then it is the other way around.

If you know both of the variables values, then you can simply just replace the variables and solve.

please mark this answer as brainlist

Answer:

30mm

Step-by-step explanation:

Diameter 60mm ÷ 2 = 30mm radius

Radius = 1/2 diameter

Answer:

x=-21

Step-by-step explanation:

The difference of a number and 3 is x - 3

The sum of the number and 5 is x + 5  

Twice the difference of a number and 3 is therefore 2(x - 3)  

Three times the sum of the number and 5 is therefore 3(x + 5)  

These last two terms are equal. In equation form this is:  

2(x - 3) = 3(x + 5)

2x - 6 = 3x + 15  

Get rid of the 3x on the right side by subtracting 3x from both sides and you have:  

-x - 6 = 15  

Get rid of the -6 on the left side by adding 6 to both sides to get:  

-x = 21  

You are trying to solve for +x. To change the left side of this equation to +x multiply

both sides by -1 and you change the equation to:  

x = -21

Hope this helps you to understand the problem.

Answer:

January 28 Dalton Math Skateboard

February 17 Sierra Woodshop Segway

May 9 Anastasia Art Mountain bike

May 19 Kylie History Scooter

Write the sum as

[tex]\displaystyle S = \sum_{k=1}^n \frac1{k(k+2)}[/tex]

Decompose the summand into partial fractions; that is, we look for constants a and b such that

[tex]\dfrac 1{k(k+2)} = \dfrac ak + \dfrac b{k+2}[/tex]

Condense the right side into a single fraction and set the numerators on both sides equal to one another:

[tex]\dfrac1{k(k+2)} = \dfrac{a(k+2)}{k(k+2)} + \dfrac{bk}{k(k+2)} = \dfrac{a(k+2)+bk}{k(k+2)} \\\\ \implies 1 = a(k+2) + bk = (a+b)k + 2a[/tex]

Then a + b = 0 and 2a = 1, so it follows that a = 1/2 and b = -1/2.

We then see that S is a telescoping sum (intermediate terms cancel and the overall sum collapses into a small number of terms):

[tex]\displaystyle S = \frac12 \sum_{k=1}^n \left(\frac1k - \frac1{k+2}\right) \\\\ S = \frac12 \left(1-\frac13 + \frac12 - \frac14 + \frac13 - \frac15 + \cdots + \frac1{n-2} - \frac1n + \frac1{n-1} - \frac1{n+1} + \frac1n - \frac1{n+2}\right) \\\\ S = \frac12 \left(1 + \frac12 - \frac1{n+1} - \frac1{n+2}\right) \\\\ \boxed{S = \frac{n(3n+5)}{4(n+1)(n+2)}}[/tex]

Answer:

14 hours

Step-by-step explanation:

Total distance = [tex] 70 × 6 = 420 km[/tex]

[tex]420 \div 30[/tex]

[tex] = 14h[/tex]

B. [tex] |2x + 1| + 1[/tex]

[tex]( |2x + 1| + 3) - 2[/tex]

[tex] |2x + 1| + 3 - 2[/tex]

[tex] |2x + 1| + (3 - 2)[/tex]

[tex] = |2x + 1| + 1[/tex]

Answer:

Step-by-step explanation:

4x² - 12x + 9 = ?

4x² - 12x + 9 = 4x²- 6x - 6x + 9 = 2x

2x(2x - 3) - 3(2x - 3)

(2x - 3)(2x - 3)

(2x - 3)²

Welcome Brazil!!!!

Answer:

Part B: The dimensions are (4x + 3y) and (4x - 3y)

Step-by-step explanation:

our equation is: (16x^2 - 9y^2)

With this equation, we must plug it into the formula: (a + b)(a - b) = a^2 - b^2

so,

a^2 = 16x^2

b^2 = 9y^2

then,

a = sqrt(16x^2) = 4x

b = sqrt(9y^2) = 3y

(these are the correct variables because 3*3 = 9, and 4*4 = 16)

now, we plug this information back into the formula again;

(a + b)(a - b) = (4x + 3y)(4x - 3y)

therefore, (4x + 3y)(4x - 3y) is the answer!

I hope this helps, have a wonderful day!

Answer:

On his day off, Lee took a trip to the zoo. He drove an average speed of 65 mph, and it took him two-and-a-half hours to get from his house to the zoo.

Step-by-step explanation:

Answer:

k = 4

Step-by-step explanation:

16k = 16(4) = 64 and

64 = 4 × 4 × 4

[tex]\sqrt[3]{64}[/tex]

= [tex]\sqrt[3]{4^{3} }[/tex]

= 4

Answer:

n = 17°

Step-by-step explanation:

The two angles are split by a 90° angle on a 180° line.  This means that 44 and 3n - 5 must add up to 90.  

3n - 5 + 44 = 90

Solve out left side

3n + 39 = 90

Subtract 39 from both sides

3n = 51

Divide both sides by 3

n = 17

Answer:

Step-by-step explanation:

This is the concept of algebra, a function is defined as a relationship whereby each input has one and only one single output.

In our expression;

y=-3x^2-7x-6

this can be written as:

f(x)=-3x^2-7x-6

such that, given x=0,1,2,....

f(0)=-6,

f(1)=-16

f(2)=-32

This implies that y is a function of x.

answer:

A is your answer...

explanation:

I just divided each number by 4 to get the results..

hope it helps and plz mark brainliest

Answer:

v² - 4

Step-by-step explanation:

To simplify usually means to reduce something.

So like in this problem all we have to do is reduce...

v^2 - 2^2

v² - 4

Hope this helps :)

Answer:

N=-5

Step-by-step explanation:

Answer:

11-n

Step-by-step explanation:

8+4n-5n+3

Combine 4n and -5n to get -n

8-n+3

Add 8 and 3 to get 11

11-n

hope this helps!

Answer: C :Determine whether 9 – 4(–x)² is equivalent to –(9 – 4x²).

Step-by-step explanation:

A function f(x) is odd if f(-x)=-f(x).

We have thus to determine if 9-4*(-x)²= -(9-4*x²).

which is false since this function is even !!!

Answer is C

I think its 3 because you say we score 3 points on the first 5 turns then you say what is your score after those five turns.

Answer:

70° + x + (x - 20°) = 180°

x = 65°

hope it help u !!!

sorry i cant explain it in Eng

hope u can understand the image, it's an example

LCM of 156 and 168 is

[tex]2184[/tex]

[tex]Find \: the \: prime \: factorization \: of \: 156 \\ 156 = 2 \times 2 \times 3 \times 13 \\ [/tex]

[tex]Find \: the \: prime \: factorization \: of \: 168 \\ 168 = 2 \times 2 \times 2 \times 3 \times 7[/tex]

Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM

LCM = 2×2×2×3×7×13

LCM = 2184

Answer:

The positive divisors of 2160 are:

1,  2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160

Multiples of 3 are:

3, 6, 9, 12, 15, 18, 24, 27, 30, 36, 45, 48, 54, 60, 72, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160

The number of divisors, multiples of 3 is:

Answer:

probability will be 1/2 because when you toss a single coin then there will be 2 outcomes: a head and a tail that is 2 possible outcomes so, the probability of getting a hard in a single toss of coin will be 1/2

explanation:

hope it helps

The answer is [tex]24/4=6 \hspace{0.1cm} and \hspace{0.1cm}4*6=24[/tex]. "unknown factor" pertains to finding an unknown value in a multiplication problem, while "quotients" refer to the results obtained in division operations.

Both concepts are fundamental in arithmetic and algebraic calculations.

In mathematics, "unknown factor" and "quotients" are related to multiplication and division, respectively:

1. **Unknown Factor:**

  - An "unknown factor" refers to a number or variable that you want to find or determine in a multiplication problem.

  - In the context of an equation like "a * b = c," where "a" and "b" are known values or variables, and "c" is the result of the multiplication, you might be trying to find the value of "a" or "b." The unknown factor is the value that you don't initially know, and you need to solve for it.

  - For example, if you have the equation "3 * x = 15," the unknown factor is "x," and to find its value, you would need to divide both sides of the equation by 3, yielding "x = 5."

2. **Quotients:**

  - "Quotients" is the plural form of "quotient," and it refers to the result of a division operation.

  - In division, the quotient is the number that you get when you divide one number (the dividend) by another number (the divisor).

  - For example, in the division problem "12 ÷ 4," the quotient is 3 because 12 divided by 4 equals 3. Here, 3 is the result or quotient of the division operation.

  - Quotients can be whole numbers, fractions, or decimals, depending on the numbers being divided and the division process.

to know more about quotients:

https://brainly.com/question/1939154

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[tex]\large \mathfrak{Solution : }[/tex]

[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]

[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]

[tex] \mathfrak{6 + 4 ( 19 - 15 )}[/tex]

[tex] \mathfrak{6+4\times 4 }[/tex]

[tex] \mathfrak{6+16 }[/tex]

[tex] = \large\boxed{ \boxed{ \bf22 }}[/tex]

Answer:

180

Step-by-step explanation:

-9*4=-36

-36*-5=180

Step-by-step explanation:

One way is line segment UD.

Another way is line segment DU.

Answer:

Hello! Your answer is BELOW

Step-by-step explanation:

D)2

Hope I helped! Hope you make an 100%

-Amelia♥

Answer:

C. 1/5

Step-by-step explanation:

Use any two points and substitute the values for the variables in the slope formula.

Slope formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\frac{3-2}{10-5}=\frac{1}{5}[/tex]

Answer:-17x-21

Step-by-step explanation:

-21+5x-22x

-21-17x

-17x-21

-17x-21

Answer:

B. -17x-21

Step-by-step explanation:

-4 +5x - 17 - 22x = ?

(5x-22x) - 4 - 17 = -17x-21