20(x+9)=140
solve for x

Answer:

What do you mean?

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

I got it wrong so then it told me what the correct answer was:)

Answer:

[tex]z = 1 - \sqrt{3} i \\ {z}^{3} = (1 - \sqrt{3} i) ^{3} \\ =(1 - \sqrt{3} i)(1 - \sqrt{3} i)(1 - \sqrt{3} i) \\ open \: brackets \\ = (1 - 2 \sqrt{3} i + ( { \sqrt{3} i})^{2} )(1 - \sqrt{3} i) \\ but \: {( \sqrt{3}i) }^{2} = - 3 \: since \: {i}^{2} \: is \: - 1 \: in \: complex \: numbers \\ = (1 - 2 \sqrt{3} i - 3)(1 - \sqrt{3} i) \\ = ( - 2 - 2 \sqrt{3} i)(1 - \sqrt{3} i) \\ = ( - 2 + 2 \sqrt{3} i - 2 \sqrt{3} i + 2( { \sqrt{3} i)}^{2} ) \\ = - 2 - 6 \\ = - 8[/tex]

Answer:

A

Step-by-step explanation:

Edge 2023

Answer:

C. 9d=m

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer :

11.45

step-by-step explantion :

4.25=17/4

when we add 41/5 and 17/4, we get

41×4+17×5/4×5

164+65/20

229/20

11.45

Answer:  

x=5/2,3/2

so 5/2 is the maximum height. (2.5)

Step-by-step explanation:

Americans work an average of 34.4 hours per week. The average hours per week worked varies based on gender, marital status, and race.

Answer:

After 1 month, they will have same heights.

Step-by-step explanation:

Calvin is comparing the growth of two plants.

Plant A started at a height of four inches and grows two inches each month.

h'=4+2m

where

h' is height of plant after m months.

Plant B grew according to this equation, h = 4m + 2, where h, is the height after m, months.

We need to find at what month the plants have the same height. ATQ.

h = h'

4+2m = 4m + 2

Taking like terms together,

4-2 = 4m-2m

2=2m

m = 1

Hence, after 1 month, the plants will have same height.

Answer:

No

Step-by-step explanation:

2^2+3^2 = 13, and 4^2 = 16.

9514 1404 393

Answer:

  No

Step-by-step explanation:

The only Pythagorean triple that is three integers in sequence is 3, 4, 5.

2, 3, 4 is not a Pythagorean triple (will NOT form a right triangle).

__

A 2-3-4 triangle is an obtuse triangle.

Answer:

She spent $75.48

Step-by-step explanation:

multiply the price per meter by the amount of meters she purchased.

Answer:

s = 2d/t

st = 2d

final answer : st/2 = d

Answer:

5 and 6

Step-by-step explanation:

5×2=10 equal to

6×2=12 greater than

Answer:

180 quarters

Step-by-step explanation:

Answer:

y = 0.5m - 5

Step-by-step explanation:

the equation of a line can be written as

y = mx + b, with x being the input and y the output

let's plug in our two values.

-2 = m(6) + b

-2 = 6m + b

-5 = 0m + b

-2 = 6m+b

-5 = b

plug -5=b into the first equation

-2 = 6m - 5

add 5 to both sides

3 = 6m

divide both sides by 6

0.5 = m

our function is now

y = 0.5m - 5

Answer:

The third angle would measure 80 degrees

Step-by-step explanation

The equal measure of each angle in a triangle adds up to 180 degrees. The first two angles of 70 and 30 equal 100. Thus, the third angle will measure out to be 80 degrees. Have a great day!

Answer:

Zero

Step-by-step explanation:

The graph depicts a horizontal line.

All horizontal lines have no slope. If you pick two points from the line and use the slope formula, the numerator would be zero.

Zero divided by any number is zero.

Hope this helps.

Answer:

Step-by-step explanation:

Take 20 and 50.

20 * 50 = 1000.

We have the 2 zeros in 20 and 50 , also 2 * 5 = 10, making 3 zeroes.

Answer:

a = 12

b = 2

c = 11

Step-by-step explanation:

[tex] \frac{( {x}^{5}y {z}^{4} )^{3} }{ {x}^{3} yz} = {x}^{a} {y}^{b} {z}^{c} \\ \\ \frac{ {x}^{5 \times 3}y^{3} {z}^{4 \times 3} }{ {x}^{3} yz} = {x}^{a} {y}^{b} {z}^{c} \\ \\ \frac{ {x}^{15}y^{3} {z}^{12} }{ {x}^{3} yz} = {x}^{a} {y}^{b} {z}^{c} \\ \\ {x}^{15 - 3} {y}^{3 - 1} {z}^{12 - 1} = {x}^{a} {y}^{b} {z}^{c} \\ \\ {x}^{12} {y}^{2} {z}^{11} = {x}^{a} {y}^{b} {z}^{c} \\ \\ equating \: like \: terms \: from \: both \: sides \\ \\ {x}^{12} = {x}^{a} \: \implies \: a = \boxed{ 12}\\ \\ {y}^{2} = {y}^{b} \: \implies \: b = \boxed{ 2} \\ \\ {z}^{11} = {z}^{c} \: \implies \: c = \boxed{ 11}[/tex]

Answer:

The prime number is only 11

11 is the only one i seee

Answer:

K= 15

Step-by-step explanation:

K/-3 +3 = -2

Simplify by subtracting 3 on each side:

K/-3 = -2-3

K/-3 = -5

Simplify further by multiplying each side by -3:

K= -5*-3

K = 15

9514 1404 393

Answer:

  360°

Step-by-step explanation:

The sum of exterior angles of any convex polygon is 360°.

Answer:

D=7

Step-by-step explanation:

SO isolate the variable y dividing 5 on both sides

d=7

Answer: d = 7

Step-by-step explanation:

5d = 35

You have to divide both sides by 5 since we need to isolate the variable 'd' to figure out what d is.

5d ÷ 5 = d

35 ÷ 5 = 7

So d = 7

Answer: the answer to this is  9 miles an hour

Step-by-step explanation: 1. What this is asking is to make the fraction a bit easier to understand. So all we do is divide the numerator by the denominator. You can use this method for any other math problems like this also.  

2.  All this chart is doing is multiply the input or output by 9. If you look you can see the hours is multiplied by nine. I hope this helped.

Answer:

33

Step-by-step explanation:

angles A and B should add up to 180, so A must be 40, and because it is a parallelogram the anlge across from it should also equal 40. 33+7=40.

Explanation: Here we have function f(x) = 2x - 5

and we're asked to find f(x - 1).

Don't be thrown off if you're asked to plus a variable into a function.

If f(x) = 2x - 5, then f(x - 1) = 2(x - 1) - 5.

Remember to use parenthses when substituting into a function.

So simplifying on the right side, we would distribute the 2

through the parenthses and we have 2x -2 - 5.

Now combining like terms, we have 2x - 7

Answer:

55 minutes

Step-by-step explanation

   He started waiting at 12:35 P.M. If we're assuming this is the same day, you're able to add the minutes until you get to 1:00 P.M., which is around 25 minutes. Afterwards, you need to add another 30 minutes to get to the train's time of arrival, which means you should get 55 minutes!