7 + 9 – (–3) – 1 + 2

Answer:

Spends $20 and she has $5 leftover.

Step-by-step explanation:

Answer:

20:1

Step-by-step explanation:

It is given that,

Input voltage = 260 volt

Output voltage = 13 volt

We need to find the ratio of the number of input wire coils to output wire coils on the transformer.​

For a step-down transformer,

[tex]\dfrac{V_i}{V_o}=\dfrac{N_P}{N_S}\\\\\dfrac{N_P}{N_S}=\dfrac{260}{13}\\\\=\dfrac{20}{1}[/tex]

Hence, the required ratio is 20:1.

Answer:

$36

Step-by-step explanation:

orig price = $40

discount=10%

40*10/100= 400/100 = 4

$40-4= $36

Answer:

$4

Step-by-step explanation:

x percent = x/100

10 percent = 10/100 = 0.10

10% of $40 = 0.10*40 = 4

You save $4

The old price is $40 and changes to $36 after the discount is applied. This is ignoring any taxes or other surcharges

Anyways I'm going a bit off tangent. The final answer is choice B) $4

Answer:

7/24

Step-by-step explanation:

you times the numerators together and times the denominators together then you simplify

Answer:

4, 6, 10, 12 I think are the sides the perimeter=32

Step-by-step explanation:

Answer:

y=9x-17; x=17/9 or x=1 8/9 or x=1.8

y=x+23; x= -23

Step-by-step explanation:

y=9x-17

0=9x-17 (Move variables to the left-hand side and change its sign)

-9x=-17 (Divide both sides of the equation by -9)

x=17/9, x=1 8/9, or x=1.8

y=x+23

0=x+23 (To find x-intercept/zero, substitute y=0)

-x=23 (Move variable to the left-hand side and change its sign)

x= -23 (Change the signs on both sides of the equation)

x= -23

Answer:

x = 5

y = 28

the expressions both equal y so they are equal to each other.  so you right the equation as

9x - 17 = x + 23

then you subtract x from both sides

and then add 17 to both sides

the final step is to divide 8 on both sides and that gives you the answer x = 5. then you plug that back into the problem so...

y = 5 +23

so y = 28.

hope this helped!

Answer:

If two quantities x and y are related by y = f(x), the derivative f'(xo) represents the rate of change of y with respect to x at the point xo. It is measured in (units of y)/(units of x). A positive rate of change is sometimes called a rate of increase.

Step-by-step explanation:

Answer:

m= -2/5

Step-by-step explanation:

Answer: its c or 35

Step-by-step explanation: because at 10 salespeople its 40, so 9 salespeople is 35

Answer:

$18

Step-by-step explanation:

we proceed by first solving for the unit cost of a sheet

then calculate the cost for any number of sheet

We are told that a builder could buy 6 sheets for the cost of $9

this means that one sheet would cost 9/6= $1.5

Now the builder buys 12 sheets

therefore the cost of 12 sheets will be

12*1.5= $18

Answer:

Let's see what to do buddy...

Step-by-step explanation:

_________________________________

Step (1)

First we need two points of the table :

I choose a = ( 0 , 3 ) and b = ( 2 , 0 ) .

_________________________________

Step (2)

To find the slope of linear functions using two points, we use the following equation :

[tex]slope = \frac{y(b) - y(a)}{x(b) - x(a)} \\ [/tex]

Where a and b are two points of the function.

_________________________________

Step (3)

Now just need to put the coordinates of the points which we chose.

a = ( 0 , 3 ) °•°•°•°•°•°•° b = ( 2 , 0 )

[tex]slope = \frac{0 - 3}{2 - 0} \\ [/tex]

[tex]slope = - \frac{3}{2} \\ [/tex]

_________________________________

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

Answer:

2.7

Step-by-step explanation:

Answer:

0.0205

Step-by-step explanation:

I'm guessing you mean 0.123 ÷ 6

so 0.123 ÷ 6 = 0.0205

Answer:

if m and n are parallel then the value of x is 11

Answer:

Step-by-step explanation:

11/4 <3

Answer:

11/4

Step-by-step explanation:

Hope this helps!

Answer:

F' would be (2, 2) if F was reflected over the line y=-x

Answer:

y=x+4

Step-by-step explanation:

Slope is positive and it goes up by 1 so it is just 1 and the y-intercept is 4 so it is y=x+4

Mean =sum of observations/ no.of observations

Mean=8+11+7+11+4+13/6

=54/6

mean=9

The mean difference in the game scores over six games is 2.5

The mean difference measures the absolute difference between the mean value in two different groups.

Given is a basketball team which played six games such that in those games, the team won by 8 points, lost by 11, won by 7, won by 11, lost by 4, and won by 13 respectively.

The mean difference of the given data can be calculated using the following formula -

Mean Difference = (∑W / n) - (∑L / n)

Where -

(∑W / n) is the mean of games won.

and

(∑L / n) is the mean of games lost.

(∑W / n) = (8 + 7 + 11 + 13)/4 = 9.75

and

(∑L / n) = (11 + 4)/2 = 15/2 = 7.5

Mean difference =  (∑W / n) - (∑L / n) = 9.75 - 7.5 = 2.5

Therefore, the mean difference in the game scores over six games is 2.5

To solve more questions on Mean difference, visit the link below-

https://brainly.com/question/18204878

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Answer:

B

Step-by-step explanation:

Because all of the other ones are decimals and integers are WHOLE number positive or negative, and B is equal to -5

Hope This Helps

Step-by-step explanation:

Hey there!

By looking through figure, l and m are parallel lines and a transversal line passes through the lines.

Now,

7x + 12° = 12x - 28°( alternate angles are equal)

12°+28° = 12x - 7x

40° = 5x

[tex]x = \frac{40}{5} [/tex]

Therefore, x = 8°

Now,

12x - 28° + 9y - 77 = 180° ( being linear pair)

12×8° - 28° + 9y -77° = 180°

96° - 28° + 9y - 77° = 180°

-9 + 9y = 180°

9y = 180° + 9°

y = 189°/9

Therefore, y = 21°

Therefore, X = 8° and y= 21° .

Hope it helps....

Answer:

it is a.

Step-by-step explanation:

Step-by-step explanation:

The location of the vessel in distress is located in between ship A and ship B,

to the right of ship A and to the top left of ship B

to arrive at the answer we have to understand the cardinal point system.    

kindly find attached a detail sketch of the location of the ships and the point of distress call  

Answer:

4π + 33 or 45.6

Step-by-step explanation:

For this question, you need to identify the perimeter of the semicircle and the 3 sides of the trapezoid.

The perimeter of the semicircle would be (this is the equation for a circle divided by two):

(2πr)/2 or (πd)/2

To figure this out, you don't need to know the radius, because you can just use the diameter, in which case if you plug it in you would get:

(8π)/2

→ 4π

Now you would just add the perimeter of the semicircle to the perimeter of the 3 sides of the trapezoid to get:

4π + (10+13+10)

→ 4π + 33

Now all you'd need to do is round 4π to the tenths place to get:

12.6 + 33

→ 45.6

Answer:

30 doll hairs

Step-by-step explanation:

6/12=2 which is the price of one 2 liter bottel

2x15=30

Hope this helps!!

Answer:

The answer is 4

Step-by-step explanation: I did the work and it works out like that I hope this helps

We have that for the Question, it can be said that

From the question we are told

Carbohydrates are like identification badges. Cells that have different membrane carbohydrates do different ________________. The immune system uses the carbohydrates to _____________________ that your cells belong to ________ and are not ______________________, ____________________, or other foreign cells.

Generally

Therefore

The complete statement will be

For more information on this visit

https://brainly.com/question/1641336  

Answer:

A. 21

Step-by-step explanation:

divide 78 by 3.75 and you will get 20.8

round off 20.8 and you will get 21

Answer:

Step-by-step explanation:

[tex]2 + 1/3t = 1 + 1/4t\\\\2+\frac{1}{3}t=1+\frac{1}{4}t\\\\\mathrm{Subtract\:}2\mathrm{\:from\:both\:sides}\\2+\frac{1}{3}t-2=1+\frac{1}{4}t-2\\\\Simplify\\\frac{1}{3}t=\frac{1}{4}t-1\\\\\mathrm{Subtract\:}\frac{1}{4}t\mathrm{\:from\:both\:sides}\\\frac{1}{3}t-\frac{1}{4}t=\frac{1}{4}t-1-\frac{1}{4}t\\\\Simplify\\\frac{1}{12}t=-1\\\\\mathrm{Multiply\:both\:sides\:by\:}12\\12\times\frac{1}{12}t=12\left(-1\right)\\\\\\Simplify\\r =-12[/tex]