Can someone tell me if I'm right or wrong?

Answer:

30mm

Step-by-step explanation:

Diameter 60mm ÷ 2 = 30mm radius

Radius = 1/2 diameter

Answer:

7

Step-by-step explanation:

Answer:

180

Step-by-step explanation:

-9*4=-36

-36*-5=180

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

Answer:

Step-by-step explanation:

Doing this the long way, write a^12 as a product of "a"s

a^12 = a * a * a * a * a * a * a * a * a * a * a * a

Now group them into groups of 4

a^12 = a * a * a * a * a * a * a * a * a * a * a * a

There are 3 groups of 4 so you can write it as [(a^4)]^3 which is a cube

Now do the same thing with groups of 6s

a^12 = a * a * a * a * a * a * a * a * a * a * a * a

a^12 = (a^6)^2

So the two answers are

Perfect cube:  [(a^4)]^3

Perfect square: (a^6)^2

Answer:

January 28 Dalton Math Skateboard

February 17 Sierra Woodshop Segway

May 9 Anastasia Art Mountain bike

May 19 Kylie History Scooter

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:

(-3.5,1.25)

Step-by-step explanation:

A is at -5,-4 and B is at -3,3

using the slope formula the slope has to be 3.5

meaning 3/4ths of the way is a translation of 1.5 right and 5.25 up making the coordinates (-3.5,1.25)

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!

please mark this answer as brainlist

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.

Answer:

Sorry I don't understand your question

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 :)

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

#SPJ3

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:

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:

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:

6.4

Step-by-step explanation:

160 / 25 = 6.4

Answer: 6.4

Step-by-step explanation: 6.4 x 25 = 160 Brainliest please?

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

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:

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:

Step-by-step explanation:

First, plot the graph of each function.

Then look for intersection of the two graphs.

Last, take the coordinates of intersection points, these are the solution.

See the attached.

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]

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: 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

Answer:

-5

Step-by-step explanation:

-3y=-3x+15

y=x-5

make x=0

y=0-5

y=-5

Answer:

14 hours

Step-by-step explanation:

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

[tex]420 \div 30[/tex]

[tex] = 14h[/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